Computes the hash-based message authentication code (HMAC) for data given a secret key and hashing algorithm.
Arguments
Arguments
key
bytes
The secret key to use when computing HMAC hash.
data
bytes
The input to compute HMAC for.
algorithm
string
The hashing algorithm to use when computing HMAC hash. Supported algorithms: MD5
, SHA1
, SHA224
, SHA256
, SHA384
, SHA512
.
Returns
The computed HMAC hash in bytes.
Raised exceptions
Exceptions
TypeError
If
key
and data
are not in bytes, or if algorithm
is not a string.ValueError
If the provided hashing algorithm is not supported.
Examples
For more information, see Returning bytes .
# Compute HMAC SHA-256 hash for message (bytes) using a secret key (bytes) - assignStep : assign : - keyBytes : ${text.encode("key", "UTF-8")} - dataBytes : ${text.encode("Hello World", "UTF-8")} - algorithmName : "SHA256" # Compute HMAC SHA-256 hash for data in bytes - hmac : ${hash.compute_hmac(keyBytes, dataBytes, algorithmName)} - returnStep : # Return HMAC encoded to Base64 string: "QidPcoCDkuWLV9co1+PA5RY+rwfRZdwDEF9iq74afRE=" return : ${base64.encode(hmac)}
