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Diffstat (limited to 'frozen_deps/Crypto/PublicKey/_RSA.py')
-rw-r--r-- | frozen_deps/Crypto/PublicKey/_RSA.py | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/frozen_deps/Crypto/PublicKey/_RSA.py b/frozen_deps/Crypto/PublicKey/_RSA.py deleted file mode 100644 index 601ab7c..0000000 --- a/frozen_deps/Crypto/PublicKey/_RSA.py +++ /dev/null @@ -1,81 +0,0 @@ -# -# RSA.py : RSA encryption/decryption -# -# 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 import pubkey -from Crypto.Util import number - -def generate_py(bits, randfunc, progress_func=None, e=65537): - """generate(bits:int, randfunc:callable, progress_func:callable, e:int) - - Generate an RSA key of length 'bits', public exponent 'e'(which must be - odd), using 'randfunc' to get random data and 'progress_func', - if present, to display the progress of the key generation. - """ - obj=RSAobj() - obj.e = int(e) - - # Generate the prime factors of n - if progress_func: - progress_func('p,q\n') - p = q = 1 - while number.size(p*q) < bits: - # Note that q might be one bit longer than p if somebody specifies an odd - # number of bits for the key. (Why would anyone do that? You don't get - # more security.) - p = pubkey.getStrongPrime(bits>>1, obj.e, 1e-12, randfunc) - q = pubkey.getStrongPrime(bits - (bits>>1), obj.e, 1e-12, randfunc) - - # It's OK for p to be larger than q, but let's be - # kind to the function that will invert it for - # th calculation of u. - if p > q: - (p, q)=(q, p) - obj.p = p - obj.q = q - - if progress_func: - progress_func('u\n') - obj.u = pubkey.inverse(obj.p, obj.q) - obj.n = obj.p*obj.q - - if progress_func: - progress_func('d\n') - obj.d=pubkey.inverse(obj.e, (obj.p-1)*(obj.q-1)) - - assert bits <= 1+obj.size(), "Generated key is too small" - - return obj - -class RSAobj(pubkey.pubkey): - - def size(self): - """size() : int - Return the maximum number of bits that can be handled by this key. - """ - return number.size(self.n) - 1 - |