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

This gem provides request authentication via HMAC. The main usage is request based, noninteractive authentication for API implementations. Two strategies are supported that differ mainly in how the ...

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, ...

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 ...

This is the seventh entry in this blog series on using Java Cryptography securely. Starting from theﾂ?basics we began diving deeper into various basic cryptographic primitives such as ...