* GOST R 34.10-2012 (RFC 7091) public key signature function
* various 34.10 curve parameters included
* VKO 34.10-2001 Diffie-Hellman function (RFC 4357)
+* VKO 34.10-2012 Diffie-Hellman function
* 28147-89 and CryptoPro key wrapping (RFC 4357)
* 28147-89 CryptoPro key meshing for CFB mode (RFC 4357)
* RFC 4491 (using GOST algorithms with X.509) compatibility helpers
Known problems: low performance and non time-constant calculations.
-Example X.509 compatible 34.10-2012 keypair generation, signing and
-verifying its signature:
-
- >>> from pygost import x509
- >>> prv, pub = x509.keypair_gen(urandom(64), mode=2012)
- >>> data = b'some data'
- >>> signature = x509.sign(prv, data, mode=2012)
- >>> x509.verify(pub, data, signature, mode=2012)
+Example 34.10-2012 keypair generation, signing and verifying:
+
+ >>> from pygost.gost3410 import CURVE_PARAMS
+ >>> from pygost.gost3410 import GOST3410Curve
+ >>> curve = GOST3410Curve(*CURVE_PARAMS["GostR3410_2012_TC26_ParamSetA"])
+ >>> from os import urandom
+ >>> prv_raw = urandom(32)
+ >>> from pygost.gost3410 import prv_unmarshal
+ >>> prv = prv_unmarshal(prv_raw)
+ >>> from pygost.gost3410 import public_key
+ >>> pub = public_key(curve, prv)
+ >>> from pygost.gost3410 import pub_marshal
+ >>> from pygost.utils import hexenc
+ >>> print "Public key is:", hexenc(pub_marshal(pub))
+ >>> from pygost import gost34112012256
+ >>> data_for_signing = b"some data"
+ >>> dgst = gost34112012256.new(data_for_signing).digest()
+ >>> from pygost.gost3410 import sign
+ >>> signature = sign(curve, prv, dgst, mode=2012)
+ >>> from pygost.gost3410 import verify
+ >>> verify(curve, pub, dgst, signature, mode=2012)
True
Other examples can be found in docstrings.