Hot answers tagged hmac
First of all: accelerating PBKDF by using a faster hash doesn't make sense; an attacker is likely to receive the same speedup. On 64 bit machines SHA-512 or one of the 384, 256 or 224 derivatives is likely to be faster than SHA-256. So you might be able to increase security and have a faster hash algorithm. MD4 should probably not be used for anything ...
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