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See Mac for full documentation. WeakMac is simply a drop-in replacement that only supports deprecated algorithms. This is helpful when you need to deal with weak algorithms for backward compatibility purposes, but Mac should always be used for new development and for anything intended to be secure.
This class provides the functionality of a "Message Authentication Code" (MAC) algorithm. A MAC provides a way to check the integrity of information transmitted over or stored in an unreliable medium, based on a secret key. Typically, message authentication codes are used between two parties that share a secret key in order to validate information transmitted between these parties. A MAC mechanism that is based on cryptographic hash functions is referred to as HMAC. HMAC can be used with any cryptographic hash function, e.g., SHA256, in combination with a secret shared key. HMAC is specified in RFC 2104.
Note: this class handles sensitive security-related data. Pay special attention to PCI DSS v3. requirements 2, 4, and 12.
This algorithm is obsolete. Do not use it for any sensitive data
This algorithm is obsolete. Do not use it for any sensitive data
- HmacMD5
- HmacSHA1