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Cryptography-rsa-pkcs1-signature
Cryptography rsa pkcs1 signature
The implementation of the PKCS1 v1.5 padding scheme in the cryptography package is vulnerable to timing attacks. The RSA decryption raises an exception on failure, which takes a different amount of time than returning a value upon success. This is not considered secure and it is not recommended that PKCS1v15 is used in new applications. OAEP should be preferred for encryption and PSS should be preferred for signatures.
Likelihood: LOW
Confidence: HIGH
CWE:
- CWE-327: Use of a Broken or Risky Cryptographic Algorithm
OWASP:
- A02:2021 - Cryptographic Failures
- A03:2017 - Sensitive Data Exposure