Digest-HMAC-1.05

keyed-hashing for message authentication

Index | security

Description

HMAC is used for message integrity checks between two parties that share
a secret key, and works in combination with some other Digest algorithm,
usually MD5 or SHA-1.  The HMAC mechanism is described in RFC 2104.

HMAC follow the common "Digest::" interface, but the constructor takes
the secret key and the name of some other simple "Digest::" as argument.