Package Crypto :: Package Hash :: Module SHA256

Module SHA256

SHA-256 cryptographic hash algorithm.

SHA-256 belongs to the SHA-2 family of cryptographic hashes. It produces the 256 bit digest of a message.

>>> from Crypto.Hash import SHA256
>>>
>>> h = SHA256.new()
>>> h.update(b'Hello')
>>> print h.hexdigest()

SHA stands for Secure Hash Algorithm.

Classes
	SHA256Hash Class that implements a SHA-256 hash

Functions

new(data=None)
Return a fresh instance of the hash object.

Variables
	digest_size = `32` The size of the resulting hash in bytes.

Function Details

Return a fresh instance of the hash object.

Parameters:

data (byte string) - The very first chunk of the message to hash. It is equivalent to an early call to SHA256Hash.update(). Optional.

Returns:

A SHA256Hash object