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HMAC functions in Delphi (HMAC_SHA256, HMAC_SHA1)

Yanniel's notes – More articles like this: http://www.yanniel.info/p/delphi-programming.htmlI came across HMAC (Hash-based message authentication code) functions when developing a RESTful client application in Delphi. The RESTful Web Service API required me to send HMAC_SHA256 signatures (Base64 encoded) with each HTTP request.HMAC functions take two parameters: a key and a message. The purpose of the HMAC function is to authenticate the message and guarantee the data integrity of the message.The cryptographic strength of the HMAC function lies on the underlying hashing function that it uses: MD5, SHA1, SHA256, ...
Favorite? Off-Topic? Yanniel Alvarez @ 2014-04-05 04:45


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