[ 源代码： ruby-hmac ]
软件包：ruby-hmac（0.4.0-6）
Ruby interface for HMAC algorithm
This module provides common interface to HMAC functionality. HMAC is a kind of "Message Authentication Code" (MAC) algorithm whose standard is documented in RFC2104. Namely, a MAC provides a way to check the integrity of information transmitted over or stored in an unreliable medium, based on a secret key.