From c4d90bf4ea0c5b7a016028ed994de19638d3113b Mon Sep 17 00:00:00 2001 From: Determinant Date: Tue, 17 Nov 2020 20:04:09 -0500 Subject: support saving as a keystore file --- frozen_deps/Crypto/PublicKey/_DSA.py | 115 ----------------------------------- 1 file changed, 115 deletions(-) delete mode 100644 frozen_deps/Crypto/PublicKey/_DSA.py (limited to 'frozen_deps/Crypto/PublicKey/_DSA.py') diff --git a/frozen_deps/Crypto/PublicKey/_DSA.py b/frozen_deps/Crypto/PublicKey/_DSA.py deleted file mode 100644 index 1787ced..0000000 --- a/frozen_deps/Crypto/PublicKey/_DSA.py +++ /dev/null @@ -1,115 +0,0 @@ - -# -# DSA.py : Digital Signature Algorithm -# -# Part of the Python Cryptography Toolkit -# -# Written by Andrew Kuchling, Paul Swartz, and others -# -# =================================================================== -# The contents of this file are dedicated to the public domain. To -# the extent that dedication to the public domain is not available, -# everyone is granted a worldwide, perpetual, royalty-free, -# non-exclusive license to exercise all rights associated with the -# contents of this file for any purpose whatsoever. -# No rights are reserved. -# -# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, -# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF -# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND -# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS -# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN -# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN -# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -# SOFTWARE. -# =================================================================== -# - -__revision__ = "$Id$" - -from Crypto.PublicKey.pubkey import * -from Crypto.Util import number -from Crypto.Util.number import bytes_to_long, long_to_bytes -from Crypto.Hash import SHA -from Crypto.Util.py3compat import * - -class error (Exception): - pass - -def generateQ(randfunc): - S=randfunc(20) - hash1=SHA.new(S).digest() - hash2=SHA.new(long_to_bytes(bytes_to_long(S)+1)).digest() - q = bignum(0) - for i in range(0,20): - c=bord(hash1[i])^bord(hash2[i]) - if i==0: - c=c | 128 - if i==19: - c= c | 1 - q=q*256+c - while (not isPrime(q)): - q=q+2 - if pow(2,159) < q < pow(2,160): - return S, q - raise RuntimeError('Bad q value generated') - -def generate_py(bits, randfunc, progress_func=None): - """generate(bits:int, randfunc:callable, progress_func:callable) - - Generate a DSA key of length 'bits', using 'randfunc' to get - random data and 'progress_func', if present, to display - the progress of the key generation. - """ - - if bits<160: - raise ValueError('Key length < 160 bits') - obj=DSAobj() - # Generate string S and prime q - if progress_func: - progress_func('p,q\n') - while (1): - S, obj.q = generateQ(randfunc) - n=divmod(bits-1, 160)[0] - C, N, V = 0, 2, {} - b=(obj.q >> 5) & 15 - powb=pow(bignum(2), b) - powL1=pow(bignum(2), bits-1) - while C<4096: - for k in range(0, n+1): - V[k]=bytes_to_long(SHA.new(S+bstr(N)+bstr(k)).digest()) - W=V[n] % powb - for k in range(n-1, -1, -1): - W=(W<<160)+V[k] - X=W+powL1 - p=X-(X%(2*obj.q)-1) - if powL1<=p and isPrime(p): - break - C, N = C+1, N+n+1 - if C<4096: - break - if progress_func: - progress_func('4096 multiples failed\n') - - obj.p = p - power=divmod(p-1, obj.q)[0] - if progress_func: - progress_func('h,g\n') - while (1): - h=bytes_to_long(randfunc(bits)) % (p-1) - g=pow(h, power, p) - if 11: - break - obj.g=g - if progress_func: - progress_func('x,y\n') - while (1): - x=bytes_to_long(randfunc(20)) - if 0 < x < obj.q: - break - obj.x, obj.y = x, pow(g, x, p) - return obj - -class DSAobj: - pass - -- cgit v1.2.3