Abstract: HMAC is a shared-key security algorithm that uses hash functions for message authentication and data integrity. The most popular hash functions used with HMAC are MD5, SHA-1, and RIPEMD-160, ...

Abstract: As technology-related test portals become more popular, ensuring user security becomes increasingly important. In this research work, a new approach is proposed for email OTP verification ...

Implementation of the TOTP authentication algorithm written in C, suitable for Embedded application or other enviroments where a low memory impact is required. The ...

When using HMAC algorithms (HS256, HS384, HS512), python-jose and PyJWT exhibit different signature validation behavior compared to Node's jsonwebtoken library. Multiple valid signature endings are ...

I recently found a security flaw in the Google Keyczar crypto library. The impact was that an attacker could forge signatures for data that was “signed” with the SHA-1 HMAC algorithm (the default ...