From aa7dacaf53e150d9d6e58224c46b88214f2957df Mon Sep 17 00:00:00 2001 From: Paul Kehrer Date: Thu, 27 Nov 2014 10:40:12 -1000 Subject: add encode_rfc6979_signature and refactor tests to use it --- src/cryptography/hazmat/primitives/asymmetric/utils.py | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/cryptography/hazmat/primitives/asymmetric/utils.py b/src/cryptography/hazmat/primitives/asymmetric/utils.py index 5e35b3f6..0140e6c1 100644 --- a/src/cryptography/hazmat/primitives/asymmetric/utils.py +++ b/src/cryptography/hazmat/primitives/asymmetric/utils.py @@ -4,7 +4,7 @@ from __future__ import absolute_import, division, print_function -from pyasn1.codec.der import decoder +from pyasn1.codec.der import decoder, encoder from pyasn1.type import namedtype, univ @@ -20,3 +20,10 @@ def decode_rfc6979_signature(signature): r = int(data[0].getComponentByName('r')) s = int(data[0].getComponentByName('s')) return (r, s) + + +def encode_rfc6979_signature(r, s): + sig = _DSSSigValue() + sig.setComponentByName('r', r) + sig.setComponentByName('s', s) + return encoder.encode(sig) -- cgit v1.2.3