crypto.HMAC

Returns a cryptographic hash that uses a key to sign a message.

Syntax

crypto.HMAC HASH_TYPE KEY MESSAGE [ENCODING]

Returns

string

Alias

hmac

Set the HASH_TYPE argument to md5, sha1, sha256, or sha512.

Set the optional ENCODING argument to either hex (default) or binary.

{{ hmac "sha256" "Secret key" "Secret message" }}
5cceb491f45f8b154e20f3b0a30ed3a6ff3027d373f85c78ffe8983180b03c84

{{ hmac "sha256" "Secret key" "Secret message" "hex" }}
5cceb491f45f8b154e20f3b0a30ed3a6ff3027d373f85c78ffe8983180b03c84

{{ hmac "sha256" "Secret key" "Secret message" "binary" | base64Encode }}
XM60kfRfixVOIPOwow7Tpv8wJ9Nz+Fx4/+iYMYCwPIQ=

Last updated: April 10, 2025 : Merge commit '5be51ac3db225d5df501ed1fa1499c41d97dbf65' (283e97783)

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