crypto_evp_hmac

MivaScript Builtin Function, Miva Merchant 9+

Tag / Description

crypto_evp_hmac( digestname, key, buffer var, digest var )

<mvt:assign name="g.return_value" value="crypto_evp_hmac( digestname, key, buffer var, digest var )" />

Calculates the HMAC of "buffer" using digest algorithm "digestname" and key "key", placing the HMAC in "digest". The HMAC output is always in raw binary format, use miva_hex_encode() or crypto_base64_encode() if other output formats are desired.

Parameters

• digestname

  an OpenSSL digest identifier, such as "sha256" or "md5".

• key

• buffer var

  The data that will be process.

• digest var

  The result of the HMAC function.

Return Values

Examples