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Diffstat (limited to 'frozen_deps/Crypto/Hash/SHA.py')
-rw-r--r-- | frozen_deps/Crypto/Hash/SHA.py | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/frozen_deps/Crypto/Hash/SHA.py b/frozen_deps/Crypto/Hash/SHA.py deleted file mode 100644 index 0bc5917..0000000 --- a/frozen_deps/Crypto/Hash/SHA.py +++ /dev/null @@ -1,98 +0,0 @@ -# -*- coding: utf-8 -*- -# -# =================================================================== -# 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. -# =================================================================== - -"""SHA-1 cryptographic hash algorithm. - -SHA-1_ produces the 160 bit digest of a message. - - >>> from Crypto.Hash import SHA - >>> - >>> h = SHA.new() - >>> h.update(b'Hello') - >>> print h.hexdigest() - -*SHA* stands for Secure Hash Algorithm. - -This algorithm is not considered secure. Do not use it for new designs. - -.. _SHA-1: http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf -""" - -_revision__ = "$Id$" - -__all__ = ['new', 'digest_size', 'SHA1Hash' ] - -from Crypto.Util.py3compat import * -from Crypto.Hash.hashalgo import HashAlgo - -try: - # The sha module is deprecated in Python 2.6, so use hashlib when possible. - import hashlib - hashFactory = hashlib.sha1 - -except ImportError: - import sha - hashFactory = sha - -class SHA1Hash(HashAlgo): - """Class that implements a SHA-1 hash - - :undocumented: block_size - """ - - #: ASN.1 Object identifier (OID):: - #: - #: id-sha1 OBJECT IDENTIFIER ::= { - #: iso(1) identified-organization(3) oiw(14) secsig(3) - #: algorithms(2) 26 - #: } - #: - #: This value uniquely identifies the SHA-1 algorithm. - oid = b('\x06\x05\x2b\x0e\x03\x02\x1a') - - digest_size = 20 - block_size = 64 - - def __init__(self, data=None): - HashAlgo.__init__(self, hashFactory, data) - - def new(self, data=None): - return SHA1Hash(data) - -def new(data=None): - """Return a fresh instance of the hash object. - - :Parameters: - data : byte string - The very first chunk of the message to hash. - It is equivalent to an early call to `SHA1Hash.update()`. - Optional. - - :Return: A `SHA1Hash` object - """ - return SHA1Hash().new(data) - -#: The size of the resulting hash in bytes. -digest_size = SHA1Hash.digest_size - -#: The internal block size of the hash algorithm in bytes. -block_size = SHA1Hash.block_size - - |