Computes the hash-based message authentication code (HMAC) for data given a secret key and hashing algorithm.
Arguments
Arguments | |
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key |
The secret key to use when computing HMAC hash. |
data |
The input to compute HMAC for. |
algorithm |
The hashing algorithm to use when computing HMAC hash. Supported algorithms: |
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)}