界: Security Features
軟體安全性並非安全性軟體。我們關注驗證、Access Control、保密性、加密以及權限管理之類的主題。
Weak Encryption: Insufficient Key Size
Abstract
強式加密演算法如果使用長度不足的金鑰，將容易受到暴力破解攻擊。
Explanation
目前密碼編譯的規範，建議應該使用長度至少為 2048 個位元的金鑰，並搭配使用 RSA 演算法。但是，電腦運算能力以及因子分析技術 [1] 不斷進步，未來不可避免地會增加建議的金鑰長度。
範例 1：以下程式碼使用 RSA 演算法搭配 512 位元加密金鑰。
如果使用對稱式加密法，則金鑰長度必須超過 128 個位元。
範例 1：以下程式碼使用 RSA 演算法搭配 512 位元加密金鑰。
static public byte[] EncryptWithRSA(byte[] plaintext, RSAParameters key) {
try {
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider(512);
rsa.ImportParameters(key);
return rsa.Encrypt(plaintext, true);
}
catch(CryptographicException e) {
Console.WriteLine(e.Message);
return null;
}
}
如果使用對稱式加密法，則金鑰長度必須超過 128 個位元。
References
[1] J. Cheng 307-digit key crack endangers 1024-bit RSA
[2] Cryptographic Algorithms and Key Sizes for Personal Identity Verification NIST
[3] B. Chess and J. West, Secure Programming with Static Analysis. Boston, MA: Addison-Wesley, 2007.
[4] Standards Mapping - Common Weakness Enumeration CWE ID 326
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 3.6.1, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 3.6.1, Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 3.6.1, Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 3.6.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 3.6.1, Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 3.6.1, Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 3.6.1, Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.6.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 3.6.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
desc.semantic.dotnet.weak_encryption_insufficient_key_size
Abstract
強式加密演算法如果使用長度不足的金鑰，將容易受到暴力破解攻擊。
Explanation
目前密碼編譯的規範，建議應該使用長度至少為 2048 個位元的金鑰，並搭配使用 RSA 演算法。但是，電腦運算能力以及因子分析技術 [1] 不斷進步，未來不可避免地會增加建議的金鑰長度。
範例 1：以下程式碼會產生 512 位元的 RSA 加密金鑰。
如果使用對稱式加密法，則金鑰長度必須超過 128 個位元。
範例 1：以下程式碼會產生 512 位元的 RSA 加密金鑰。
EVP_PKEY * get_RSA_key() {
unsigned long err;
EVP_PKEY * pkey;
RSA * rsa;
rsa = RSA_generate_key(512, 35, NULL, NULL);
if (rsa == NULL) {
err = ERR_get_error();
printf("Error = %s\n",ERR_reason_error_string(err));
return NULL;
}
pkey = EVP_PKEY_new();
EVP_PKEY_assign_RSA(pkey, rsa);
return pkey;
}
如果使用對稱式加密法，則金鑰長度必須超過 128 個位元。
References
[1] J. Cheng 307-digit key crack endangers 1024-bit RSA
[2] Cryptographic Algorithms and Key Sizes for Personal Identity Verification NIST
[3] B. Chess and J. West, Secure Programming with Static Analysis. Boston, MA: Addison-Wesley, 2007.
[4] Standards Mapping - Common Weakness Enumeration CWE ID 326
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 3.6.1, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 3.6.1, Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 3.6.1, Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 3.6.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 3.6.1, Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 3.6.1, Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 3.6.1, Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.6.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 3.6.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
desc.structural.cpp.weak_encryption_insufficient_key_size
Abstract
強式加密演算法如果使用長度不足的金鑰，將容易受到暴力破解攻擊。
Explanation
目前密碼編譯的規範建議應該使用長度至少為 2048 個位元的金鑰，並搭配 RSA 演算法使用。若是對稱式加密法，則金鑰長度必須至少為 128 個位元。但是，電腦運算能力以及因子分析技術 [1] 不斷進步，未來不可避免地會增加建議的金鑰長度。
範例 1：以下程式碼會產生 1024 個位元的 RSA 金鑰：
範例 1：以下程式碼會產生 1024 個位元的 RSA 金鑰：
...
myPrivateKey := rsa.GenerateKey(rand.Reader, 1024);
...
References
[1] J. Cheng 307-digit key crack endangers 1024-bit RSA
[2] Cryptographic Algorithms and Key Sizes for Personal Identity Verification NIST
[3] B. Chess and J. West, Secure Programming with Static Analysis. Boston, MA: Addison-Wesley, 2007.
[4] Standards Mapping - Common Weakness Enumeration CWE ID 326
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 3.6.1, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 3.6.1, Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 3.6.1, Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 3.6.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 3.6.1, Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 3.6.1, Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 3.6.1, Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.6.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 3.6.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
desc.structural.golang.weak_encryption_insufficient_key_size
Abstract
強式加密演算法如果使用長度不足的金鑰，將容易受到暴力破解攻擊。
Explanation
目前密碼編譯的規範，建議應該使用長度至少為 2048 個位元的金鑰，並搭配使用 RSA 演算法。但是，電腦運算能力以及因子分析技術 [1] 不斷進步，未來不可避免地會增加建議的金鑰長度。
範例 1：以下程式碼會產生 512 位元的 RSA 加密金鑰。
如果使用對稱式加密法，則金鑰長度必須超過 128 個位元。
範例 1：以下程式碼會產生 512 位元的 RSA 加密金鑰。
public static KeyPair getRSAKey() throws NoSuchAlgorithmException {
KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
keyGen.initialize(512);
KeyPair key = keyGen.generateKeyPair();
return key;
}
如果使用對稱式加密法，則金鑰長度必須超過 128 個位元。
References
[1] J. Cheng 307-digit key crack endangers 1024-bit RSA
[2] Cryptographic Algorithms and Key Sizes for Personal Identity Verification NIST
[3] B. Chess and J. West, Secure Programming with Static Analysis. Boston, MA: Addison-Wesley, 2007.
[4] Standards Mapping - Common Weakness Enumeration CWE ID 326
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 3.6.1, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 3.6.1, Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 3.6.1, Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 3.6.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 3.6.1, Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 3.6.1, Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 3.6.1, Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.6.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 3.6.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
desc.structural.java.weak_encryption_insufficient_key_size
Abstract
強式加密演算法如果使用長度不足的金鑰，將容易受到暴力破解攻擊。
Explanation
目前密碼編譯的規範，建議應該使用長度至少為 2048 個位元的金鑰，並搭配使用 RSA 演算法。但是，電腦運算能力以及因子分析技術 [1] 不斷進步，未來不可避免地會增加建議的金鑰長度。
範例 1：以下程式碼會產生 512 位元的 RSA 金鑰。
如果使用對稱式加密法，則金鑰長度必須超過 128 個位元。
範例 1：以下程式碼會產生 512 位元的 RSA 金鑰。
...
crmfObject = crypto.generateCRMFRequest(
"CN=" + name.value,
password.value,
authenticator,
keyTransportCert,
"setCRMFRequest();",
512, null, "rsa-dual-use");
...
如果使用對稱式加密法，則金鑰長度必須超過 128 個位元。
References
[1] J. Cheng 307-digit key crack endangers 1024-bit RSA
[2] Cryptographic Algorithms and Key Sizes for Personal Identity Verification NIST
[3] B. Chess and J. West, Secure Programming with Static Analysis. Boston, MA: Addison-Wesley, 2007.
[4] Standards Mapping - Common Weakness Enumeration CWE ID 326
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 3.6.1, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 3.6.1, Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 3.6.1, Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 3.6.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 3.6.1, Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 3.6.1, Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 3.6.1, Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.6.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 3.6.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
desc.structural.javascript.weak_encryption_insufficient_key_size
Abstract
強式加密演算法如果使用長度不足的金鑰，將容易受到暴力破解攻擊。
Explanation
目前密碼編譯的規範，建議應該使用長度至少為 2048 個位元的金鑰，並搭配使用 RSA 演算法。但是，電腦運算能力以及因子分析技術 [1] 不斷進步，未來不可避免地會增加建議的金鑰長度。如果使用對稱式加密法，則金鑰長度必須超過 128 個位元。
範例 1：以下程式碼使用較弱的加密演算法與長度不足的金鑰。
範例 1：以下程式碼使用較弱的加密演算法與長度不足的金鑰。
...
CCCrypt(kCCEncrypt,
kCCAlgorithmDES,
kCCOptionPKCS7Padding,
key,
kCCKeySizeDES, // 64-bit key size
iv,
plaintext,
sizeof(plaintext),
ciphertext,
sizeof(ciphertext),
&numBytesEncrypted);
...
References
[1] J. Cheng 307-digit key crack endangers 1024-bit RSA
[2] Cryptographic Algorithms and Key Sizes for Personal Identity Verification NIST
[3] B. Chess and J. West, Secure Programming with Static Analysis. Boston, MA: Addison-Wesley, 2007.
[4] Standards Mapping - Common Weakness Enumeration CWE ID 326
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 3.6.1, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 3.6.1, Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 3.6.1, Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 3.6.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 3.6.1, Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 3.6.1, Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 3.6.1, Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.6.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 3.6.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
desc.structural.objc.weak_encryption_insufficient_key_size
Abstract
強式加密演算法如果使用長度不足的金鑰，將容易受到暴力破解攻擊。
Explanation
目前密碼編譯的規範，建議應該使用長度至少為 2048 位元的金鑰，並搭配使用 RSA 演算法。但是，電腦運算能力以及因子分析技術 [1] 不斷進步，未來不可避免地會增加建議的金鑰長度。
範例 1：以下程式碼會產生 1024 位元的 RSA 加密金鑰。
如果使用對稱式加密法，則 Triple DES 的金鑰長度應至少為 168 位元，AES 至少為 128 位元。
範例 1：以下程式碼會產生 1024 位元的 RSA 加密金鑰。
...
$keysize = 1024;
$options = array('private_key_bits' => $keysize, 'private_key_type' => OPENSSL_KEYTYPE_RSA);
$res = openssl_pkey_new($options);
...
如果使用對稱式加密法，則 Triple DES 的金鑰長度應至少為 168 位元，AES 至少為 128 位元。
References
[1] J. Cheng 307-digit key crack endangers 1024-bit RSA
[2] Cryptographic Algorithms and Key Sizes for Personal Identity Verification NIST
[3] B. Chess and J. West, Secure Programming with Static Analysis. Boston, MA: Addison-Wesley, 2007.
[4] Standards Mapping - Common Weakness Enumeration CWE ID 326
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 3.6.1, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 3.6.1, Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 3.6.1, Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 3.6.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 3.6.1, Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 3.6.1, Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 3.6.1, Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.6.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 3.6.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
desc.structural.php.weak_encryption_insufficient_key_size
Abstract
強式加密演算法如果使用長度不足的金鑰，將容易受到暴力破解攻擊。
Explanation
目前密碼編譯的規範，建議應該使用長度至少為 2048 個位元的金鑰，並搭配使用 RSA 演算法。但是，電腦運算能力以及因子分析技術 [1] 不斷進步，未來不可避免地會增加建議的金鑰長度。
範例 1：以下程式碼會產生 1024 位元的 RSA 加密金鑰。
如果使用對稱式加密法，則 Triple DES 的金鑰長度應至少為 168 位元，AES 至少為 128 位元。
範例 1：以下程式碼會產生 1024 位元的 RSA 加密金鑰。
...
from Crypto.PublicKey import RSA
key = RSA.generate(1024)
...
如果使用對稱式加密法，則 Triple DES 的金鑰長度應至少為 168 位元，AES 至少為 128 位元。
References
[1] J. Cheng 307-digit key crack endangers 1024-bit RSA
[2] Cryptographic Algorithms and Key Sizes for Personal Identity Verification NIST
[3] B. Chess and J. West, Secure Programming with Static Analysis. Boston, MA: Addison-Wesley, 2007.
[4] Standards Mapping - Common Weakness Enumeration CWE ID 326
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 3.6.1, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 3.6.1, Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 3.6.1, Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 3.6.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 3.6.1, Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 3.6.1, Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 3.6.1, Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.6.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 3.6.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
desc.structural.python.weak_encryption_insufficient_key_size
Abstract
強式加密演算法如果使用長度不足的金鑰，將容易受到暴力破解攻擊。
Explanation
目前密碼編譯的規範，建議應該使用長度至少為 2048 個位元的金鑰，並搭配使用 RSA 演算法。但是，電腦運算能力以及因子分析技術 [1] 不斷進步，未來不可避免地會增加建議的金鑰長度。
範例 1：以下程式碼會產生 1024 位元的 RSA 加密金鑰。
如果使用對稱式加密法，則金鑰長度必須至少為 128 個位元才能使用 AES。
範例 1：以下程式碼會產生 1024 位元的 RSA 加密金鑰。
require 'openssl'
...
pkey = OpenSSL::PKey::RSA.new 1024
...
如果使用對稱式加密法，則金鑰長度必須至少為 128 個位元才能使用 AES。
References
[1] J. Cheng 307-digit key crack endangers 1024-bit RSA
[2] Cryptographic Algorithms and Key Sizes for Personal Identity Verification NIST
[3] B. Chess and J. West, Secure Programming with Static Analysis. Boston, MA: Addison-Wesley, 2007.
[4] Standards Mapping - Common Weakness Enumeration CWE ID 326
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 3.6.1, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 3.6.1, Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 3.6.1, Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 3.6.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 3.6.1, Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 3.6.1, Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 3.6.1, Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.6.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 3.6.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
desc.structural.ruby.weak_encryption_insufficient_key_size
Abstract
強式加密演算法如果使用長度不足的金鑰，將容易受到暴力破解攻擊。
Explanation
目前密碼編譯的規範，建議應該使用長度至少為 2048 個位元的金鑰，並搭配使用 RSA 演算法。但是，電腦運算能力以及因子分析技術 [1] 不斷進步，未來不可避免地會增加建議的金鑰長度。如果使用對稱式加密法，則金鑰長度必須超過 128 個位元。
範例 1：以下程式碼使用較弱的加密演算法與長度不足的金鑰。
範例 1：以下程式碼使用較弱的加密演算法與長度不足的金鑰。
...
let iv = getTrueRandomIV()
...
let cStatus = CCCrypt(UInt32(kCCEncrypt),
UInt32(kCCAlgorithmDES),
UInt32(kCCOptionPKCS7Padding),
key,
UInt32(kCCKeySizeDES), // 64-bit key size
iv,
plaintext,
plaintextLength,
ciphertext,
ciphertextLength,
&numBytesEncrypted)
...
References
[1] J. Cheng 307-digit key crack endangers 1024-bit RSA
[2] Cryptographic Algorithms and Key Sizes for Personal Identity Verification NIST
[3] B. Chess and J. West, Secure Programming with Static Analysis. Boston, MA: Addison-Wesley, 2007.
[4] Standards Mapping - Common Weakness Enumeration CWE ID 326
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 3.6.1, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 3.6.1, Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 3.6.1, Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 3.6.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 3.6.1, Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 3.6.1, Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 3.6.1, Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.6.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 3.6.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
desc.structural.swift.weak_encryption_insufficient_key_size
Abstract
強式加密演算法如果使用長度不足的金鑰，將容易受到暴力破解攻擊。
Explanation
目前密碼編譯的規範，建議應該使用長度至少為 2048 個位元的金鑰，並搭配使用 RSA 演算法。但是，電腦運算能力以及因子分析技術 [1] 不斷進步，未來不可避免地會增加建議的金鑰長度。
如果使用對稱式加密法，則金鑰長度必須超過 128 個位元。
如果使用對稱式加密法，則金鑰長度必須超過 128 個位元。
References
[1] J. Cheng 307-digit key crack endangers 1024-bit RSA
[2] Cryptographic Algorithms and Key Sizes for Personal Identity Verification NIST
[3] B. Chess and J. West, Secure Programming with Static Analysis. Boston, MA: Addison-Wesley, 2007.
[4] Standards Mapping - Common Weakness Enumeration CWE ID 326
[5] Standards Mapping - DISA Control Correlation Identifier Version 2 CCI-002450
[6] Standards Mapping - FIPS200 MP
[7] Standards Mapping - General Data Protection Regulation (GDPR) Insufficient Data Protection
[8] Standards Mapping - NIST Special Publication 800-53 Revision 4 AU-10 Non-Repudiation (P2), SC-12 Cryptographic Key Establishment and Management (P1), SC-13 Cryptographic Protection (P1)
[9] Standards Mapping - NIST Special Publication 800-53 Revision 5 AU-10 Non-Repudiation, SC-12 Cryptographic Key Establishment and Management, SC-13 Cryptographic Protection
[10] Standards Mapping - OWASP Application Security Verification Standard 4.0 2.6.3 Look-up Secret Verifier Requirements (L2 L3), 2.8.3 Single or Multi Factor One Time Verifier Requirements (L2 L3), 6.2.1 Algorithms (L1 L2 L3), 6.2.3 Algorithms (L2 L3), 6.2.4 Algorithms (L2 L3), 6.2.5 Algorithms (L2 L3), 6.2.6 Algorithms (L2 L3), 9.1.2 Communications Security Requirements (L1 L2 L3), 9.1.3 Communications Security Requirements (L1 L2 L3)
[11] Standards Mapping - OWASP Mobile 2014 M6 Broken Cryptography
[12] Standards Mapping - OWASP Mobile 2024 M10 Insufficient Cryptography
[13] Standards Mapping - OWASP Mobile Application Security Verification Standard 2.0 MASVS-CRYPTO-1
[14] Standards Mapping - OWASP Top 10 2004 A8 Insecure Storage
[15] Standards Mapping - OWASP Top 10 2007 A8 Insecure Cryptographic Storage
[16] Standards Mapping - OWASP Top 10 2010 A7 Insecure Cryptographic Storage
[17] Standards Mapping - OWASP Top 10 2013 A6 Sensitive Data Exposure
[18] Standards Mapping - OWASP Top 10 2017 A3 Sensitive Data Exposure
[19] Standards Mapping - OWASP Top 10 2021 A02 Cryptographic Failures
[20] Standards Mapping - Payment Card Industry Data Security Standard Version 1.1 Requirement 3.6.1, Requirement 6.5.8
[21] Standards Mapping - Payment Card Industry Data Security Standard Version 1.2 Requirement 3.6.1, Requirement 6.3.1.3, Requirement 6.5.8
[22] Standards Mapping - Payment Card Industry Data Security Standard Version 2.0 Requirement 3.6.1, Requirement 6.5.3
[23] Standards Mapping - Payment Card Industry Data Security Standard Version 3.0 Requirement 3.6.1, Requirement 6.5.3
[24] Standards Mapping - Payment Card Industry Data Security Standard Version 3.1 Requirement 3.6.1, Requirement 6.5.3
[25] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2 Requirement 3.6.1, Requirement 6.5.3
[26] Standards Mapping - Payment Card Industry Data Security Standard Version 3.2.1 Requirement 3.6.1, Requirement 6.5.3
[27] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0 Requirement 3.6.1, Requirement 6.2.4
[28] Standards Mapping - Payment Card Industry Data Security Standard Version 4.0.1 Requirement 3.3.2, Requirement 3.3.3, Requirement 3.5.1, Requirement 3.6.1, Requirement 6.2.4
[29] Standards Mapping - Payment Card Industry Software Security Framework 1.0 Control Objective 7.2 - Use of Cryptography
[30] Standards Mapping - Payment Card Industry Software Security Framework 1.1 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[31] Standards Mapping - Payment Card Industry Software Security Framework 1.2 Control Objective 7.2 - Use of Cryptography, Control Objective B.2.3 - Terminal Software Design
[32] Standards Mapping - Security Technical Implementation Guide Version 3.1 APP3150.1 CAT II
[33] Standards Mapping - Security Technical Implementation Guide Version 3.4 APP3150.1 CAT II
[34] Standards Mapping - Security Technical Implementation Guide Version 3.5 APP3150.1 CAT II
[35] Standards Mapping - Security Technical Implementation Guide Version 3.6 APP3150.1 CAT II
[36] Standards Mapping - Security Technical Implementation Guide Version 3.7 APP3150.1 CAT II
[37] Standards Mapping - Security Technical Implementation Guide Version 3.9 APP3150.1 CAT II
[38] Standards Mapping - Security Technical Implementation Guide Version 3.10 APP3150.1 CAT II
[39] Standards Mapping - Security Technical Implementation Guide Version 4.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[40] Standards Mapping - Security Technical Implementation Guide Version 4.3 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[41] Standards Mapping - Security Technical Implementation Guide Version 4.4 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[42] Standards Mapping - Security Technical Implementation Guide Version 4.5 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[43] Standards Mapping - Security Technical Implementation Guide Version 4.6 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[44] Standards Mapping - Security Technical Implementation Guide Version 4.7 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[45] Standards Mapping - Security Technical Implementation Guide Version 4.8 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[46] Standards Mapping - Security Technical Implementation Guide Version 4.9 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[47] Standards Mapping - Security Technical Implementation Guide Version 4.10 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[48] Standards Mapping - Security Technical Implementation Guide Version 4.11 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[49] Standards Mapping - Security Technical Implementation Guide Version 4.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[50] Standards Mapping - Security Technical Implementation Guide Version 5.1 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[51] Standards Mapping - Security Technical Implementation Guide Version 5.2 APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[52] Standards Mapping - Security Technical Implementation Guide Version 5.3 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
[53] Standards Mapping - Security Technical Implementation Guide Version 6.1 APSC-DV-000590 CAT II, APSC-DV-002010 CAT II, APSC-DV-002040 CAT II
desc.structural.vb.weak_encryption_insufficient_key_size