OpenSSL::PKCS5
module OpenSSL::PKCS5
Provides password-based encryption functionality based on PKCS#5. Typically used for securely deriving arbitrary length symmetric keys to be used with an OpenSSL::Cipher from passwords. Another use case is for storing passwords: Due to the ability to tweak the effort of computation by increasing the iteration count, computation can be slowed down artificially in order to render possible attacks infeasible.
PKCS5 offers support for PBKDF2 with an OpenSSL::Digest::SHA1-based HMAC, or an arbitrary Digest if the underlying version of OpenSSL already supports it (>= 0.9.4).