HMAC supports any combination of SHA-2 algorithms, bit-length keys and messages. XTS-AES supports 128, 192 and 256-bit key sizes; whole block ciphering; and provides length-preserving encryption. The ...

Cryptographic hashes are widely used in the secure communication protocols. "We updated our SHA family of cores to support an HMAC function inside the core," said Dmitri Varsanofiev, CTO of IP Cores. ...

Two researchers have improved a well-known technique for lattice basis reduction, opening up new avenues for practical experiments in cryptography and mathematics.

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 ...