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- """ Cryptographic primitives. """
- from Crypto.Signature import PKCS1_v1_5
- from Crypto.Hash import SHA512
- def get_hasher():
- """ Returns a object that you can use for hashing. Currently SHA512, swap it out for something if you feel like it! """
- return SHA512.new()
- MAX_HASH = (1 << 512) - 1
- def verify_sign(hashed_value, signature, pub_key):
- """ Verify a signature for a already hashed value and a public key. """
- ver = PKCS1_v1_5.new(pub_key)
- return ver.verify(hashed_value, signature)
- def sign(hashed_value, priv_key):
- """ Sign a hashed value with a private key. """
- signer = PKCS1_v1_5.new(priv_key)
- return signer.sign(hashed_value)
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