HMAC.update(msg) Update the hmac object with msg. Repeated calls are equivalent to a single call with the concatenation

hashlib.algorithms_available A set containing the names of the hash algorithms that are available in the running Python interpreter

hmac.compare_digest(a, b) Return a == b. This function uses an approach designed to prevent timing analysis by

hash.digest_size The size of the resulting hash in bytes.

hashlib.new(name[, data]) Is a generic constructor that takes the string name of the desired algorithm as its first parameter

hash.hexdigest() Like digest() except the digest is returned as a string object of double length, containing only

HMAC.block_size The internal block size of the hash algorithm in bytes.

hash.name The canonical name of this hash, always lowercase and always suitable as a parameter to new() to create

HMAC.digest() Return the digest of the bytes passed to the update() method so far. This bytes object will be the

HMAC.copy() Return a copy (“clone”) of the hmac object. This can be used to efficiently compute the digests of strings that