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Training Camp • Cybersecurity Glossary
HMAC (Hash-based Message Authentication Code) is a cryptographic algorithm that combines a secret key with a hash function to produce a value ensuring data integrity and authenticity.
HMAC Hash-based Message Authentication Code Definition: HMAC (Hash-based Message Authentication Code) is a cryptographic algorithm that combines a secret key with a hash function to produce a value ensuring data integrity and authenticity.
HMAC, which stands for Hash-based Message Authentication Code, is a type of authentication code involving a cryptographic hash function in combination with a secret key. It is used to verify the integrity and authenticity of a message or data transmission by generating a unique hash value based on the message and the secret key. This hash value is then compared with the one received by the recipient to ensure that the message has not been altered or tampered with during transmission. HMAC provides a secure way to authenticate the origin of messages and protect against various types of attacks, such as tampering and forgery.
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