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Diffstat (limited to 'frozen_deps/Crypto/Hash')
19 files changed, 1236 insertions, 0 deletions
diff --git a/frozen_deps/Crypto/Hash/HMAC.py b/frozen_deps/Crypto/Hash/HMAC.py new file mode 100644 index 0000000..324f534 --- /dev/null +++ b/frozen_deps/Crypto/Hash/HMAC.py @@ -0,0 +1,212 @@ +# HMAC.py - Implements the HMAC algorithm as described by RFC 2104. +# +# =================================================================== +# Portions Copyright (c) 2001, 2002, 2003 Python Software Foundation; +# All Rights Reserved +# +# This file contains code from the Python 2.2 hmac.py module (the +# "Original Code"), with modifications made after it was incorporated +# into PyCrypto (the "Modifications"). +# +# To the best of our knowledge, the Python Software Foundation is the +# copyright holder of the Original Code, and has licensed it under the +# Python 2.2 license. See the file LEGAL/copy/LICENSE.python-2.2 for +# details. +# +# The Modifications to 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. +# =================================================================== + + +"""HMAC (Hash-based Message Authentication Code) algorithm + +HMAC is a MAC defined in RFC2104_ and FIPS-198_ and constructed using +a cryptograpic hash algorithm. +It is usually named *HMAC-X*, where *X* is the hash algorithm; for +instance *HMAC-SHA1* or *HMAC-MD5*. + +The strength of an HMAC depends on: + + - the strength of the hash algorithm + - the length and entropy of the secret key + +An example of possible usage is the following: + + >>> from Crypto.Hash import HMAC + >>> + >>> secret = b'Swordfish' + >>> h = HMAC.new(secret) + >>> h.update(b'Hello') + >>> print h.hexdigest() + +.. _RFC2104: http://www.ietf.org/rfc/rfc2104.txt +.. _FIPS-198: http://csrc.nist.gov/publications/fips/fips198/fips-198a.pdf +""" + +# This is just a copy of the Python 2.2 HMAC module, modified to work when +# used on versions of Python before 2.2. + +__revision__ = "$Id$" + +__all__ = ['new', 'digest_size', 'HMAC' ] + +from Crypto.Util.strxor import strxor_c +from Crypto.Util.py3compat import * + +#: The size of the authentication tag produced by the MAC. +#: It matches the digest size on the underlying +#: hashing module used. +digest_size = None + +class HMAC: + """Class that implements HMAC""" + + #: The size of the authentication tag produced by the MAC. + #: It matches the digest size on the underlying + #: hashing module used. + digest_size = None + + def __init__(self, key, msg = None, digestmod = None): + """Create a new HMAC object. + + :Parameters: + key : byte string + secret key for the MAC object. + It must be long enough to match the expected security level of the + MAC. However, there is no benefit in using keys longer than the + `digest_size` of the underlying hash algorithm. + msg : byte string + The very first chunk of the message to authenticate. + It is equivalent to an early call to `update()`. Optional. + :Parameter digestmod: + The hash algorithm the HMAC is based on. + Default is `Crypto.Hash.MD5`. + :Type digestmod: + A hash module or object instantiated from `Crypto.Hash` + """ + if digestmod is None: + from . import MD5 + digestmod = MD5 + + self.digestmod = digestmod + self.outer = digestmod.new() + self.inner = digestmod.new() + try: + self.digest_size = digestmod.digest_size + except AttributeError: + self.digest_size = len(self.outer.digest()) + + try: + # The block size is 128 bytes for SHA384 and SHA512 and 64 bytes + # for the others hash function + blocksize = digestmod.block_size + except AttributeError: + blocksize = 64 + + ipad = 0x36 + opad = 0x5C + + if len(key) > blocksize: + key = digestmod.new(key).digest() + + key = key + bchr(0) * (blocksize - len(key)) + self.outer.update(strxor_c(key, opad)) + self.inner.update(strxor_c(key, ipad)) + if (msg): + self.update(msg) + + def update(self, msg): + """Continue authentication of a message by consuming the next chunk of data. + + Repeated calls are equivalent to a single call with the concatenation + of all the arguments. In other words: + + >>> m.update(a); m.update(b) + + is equivalent to: + + >>> m.update(a+b) + + :Parameters: + msg : byte string + The next chunk of the message being authenticated + """ + + self.inner.update(msg) + + def copy(self): + """Return a copy ("clone") of the MAC object. + + The copy will have the same internal state as the original MAC + object. + This can be used to efficiently compute the MAC of strings that + share a common initial substring. + + :Returns: An `HMAC` object + """ + other = HMAC(b("")) + other.digestmod = self.digestmod + other.inner = self.inner.copy() + other.outer = self.outer.copy() + return other + + def digest(self): + """Return the **binary** (non-printable) MAC of the message that has + been authenticated so far. + + This method does not change the state of the MAC object. + You can continue updating the object after calling this function. + + :Return: A byte string of `digest_size` bytes. It may contain non-ASCII + characters, including null bytes. + """ + h = self.outer.copy() + h.update(self.inner.digest()) + return h.digest() + + def hexdigest(self): + """Return the **printable** MAC of the message that has been + authenticated so far. + + This method does not change the state of the MAC object. + + :Return: A string of 2* `digest_size` bytes. It contains only + hexadecimal ASCII digits. + """ + return "".join(["%02x" % bord(x) + for x in tuple(self.digest())]) + +def new(key, msg = None, digestmod = None): + """Create a new HMAC object. + + :Parameters: + key : byte string + key for the MAC object. + It must be long enough to match the expected security level of the + MAC. However, there is no benefit in using keys longer than the + `digest_size` of the underlying hash algorithm. + msg : byte string + The very first chunk of the message to authenticate. + It is equivalent to an early call to `HMAC.update()`. + Optional. + :Parameter digestmod: + The hash to use to implement the HMAC. Default is `Crypto.Hash.MD5`. + :Type digestmod: + A hash module or instantiated object from `Crypto.Hash` + :Returns: An `HMAC` object + """ + return HMAC(key, msg, digestmod) + diff --git a/frozen_deps/Crypto/Hash/MD2.py b/frozen_deps/Crypto/Hash/MD2.py new file mode 100644 index 0000000..dac959e --- /dev/null +++ b/frozen_deps/Crypto/Hash/MD2.py @@ -0,0 +1,91 @@ +# -*- 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. +# =================================================================== + +"""MD2 cryptographic hash algorithm. + +MD2 is specified in RFC1319_ and it produces the 128 bit digest of a message. + + >>> from Crypto.Hash import MD2 + >>> + >>> h = MD2.new() + >>> h.update(b'Hello') + >>> print h.hexdigest() + +MD2 stand for Message Digest version 2, and it was invented by Rivest in 1989. + +This algorithm is both slow and insecure. Do not use it for new designs. + +.. _RFC1319: http://tools.ietf.org/html/rfc1319 +""" + +_revision__ = "$Id$" + +__all__ = ['new', 'digest_size', 'MD2Hash' ] + +from Crypto.Util.py3compat import * +from Crypto.Hash.hashalgo import HashAlgo + +import Crypto.Hash._MD2 as _MD2 +hashFactory = _MD2 + +class MD2Hash(HashAlgo): + """Class that implements an MD2 hash + + :undocumented: block_size + """ + + #: ASN.1 Object identifier (OID):: + #: + #: id-md2 OBJECT IDENTIFIER ::= { + #: iso(1) member-body(2) us(840) rsadsi(113549) + #: digestAlgorithm(2) 2 + #: } + #: + #: This value uniquely identifies the MD2 algorithm. + oid = b('\x06\x08\x2a\x86\x48\x86\xf7\x0d\x02\x02') + + digest_size = 16 + block_size = 16 + + def __init__(self, data=None): + HashAlgo.__init__(self, hashFactory, data) + + def new(self, data=None): + return MD2Hash(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 `MD2Hash.update()`. + Optional. + + :Return: An `MD2Hash` object + """ + return MD2Hash().new(data) + +#: The size of the resulting hash in bytes. +digest_size = MD2Hash.digest_size + +#: The internal block size of the hash algorithm in bytes. +block_size = MD2Hash.block_size + diff --git a/frozen_deps/Crypto/Hash/MD4.py b/frozen_deps/Crypto/Hash/MD4.py new file mode 100644 index 0000000..e28a201 --- /dev/null +++ b/frozen_deps/Crypto/Hash/MD4.py @@ -0,0 +1,91 @@ +# -*- 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. +# =================================================================== + +"""MD4 cryptographic hash algorithm. + +MD4 is specified in RFC1320_ and produces the 128 bit digest of a message. + + >>> from Crypto.Hash import MD4 + >>> + >>> h = MD4.new() + >>> h.update(b'Hello') + >>> print h.hexdigest() + +MD4 stand for Message Digest version 4, and it was invented by Rivest in 1990. + +This algorithm is insecure. Do not use it for new designs. + +.. _RFC1320: http://tools.ietf.org/html/rfc1320 +""" + +_revision__ = "$Id$" + +__all__ = ['new', 'digest_size', 'MD4Hash' ] + +from Crypto.Util.py3compat import * +from Crypto.Hash.hashalgo import HashAlgo + +import Crypto.Hash._MD4 as _MD4 +hashFactory = _MD4 + +class MD4Hash(HashAlgo): + """Class that implements an MD4 hash + + :undocumented: block_size + """ + + #: ASN.1 Object identifier (OID):: + #: + #: id-md2 OBJECT IDENTIFIER ::= { + #: iso(1) member-body(2) us(840) rsadsi(113549) + #: digestAlgorithm(2) 4 + #: } + #: + #: This value uniquely identifies the MD4 algorithm. + oid = b('\x06\x08\x2a\x86\x48\x86\xf7\x0d\x02\x04') + + digest_size = 16 + block_size = 64 + + def __init__(self, data=None): + HashAlgo.__init__(self, hashFactory, data) + + def new(self, data=None): + return MD4Hash(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 `MD4Hash.update()`. + Optional. + + :Return: A `MD4Hash` object + """ + return MD4Hash().new(data) + +#: The size of the resulting hash in bytes. +digest_size = MD4Hash.digest_size + +#: The internal block size of the hash algorithm in bytes. +block_size = MD4Hash.block_size + diff --git a/frozen_deps/Crypto/Hash/MD5.py b/frozen_deps/Crypto/Hash/MD5.py new file mode 100644 index 0000000..18e9e7b --- /dev/null +++ b/frozen_deps/Crypto/Hash/MD5.py @@ -0,0 +1,97 @@ +# -*- 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. +# =================================================================== + +"""MD5 cryptographic hash algorithm. + +MD5 is specified in RFC1321_ and produces the 128 bit digest of a message. + + >>> from Crypto.Hash import MD5 + >>> + >>> h = MD5.new() + >>> h.update(b'Hello') + >>> print h.hexdigest() + +MD5 stand for Message Digest version 5, and it was invented by Rivest in 1991. + +This algorithm is insecure. Do not use it for new designs. + +.. _RFC1321: http://tools.ietf.org/html/rfc1321 +""" + +_revision__ = "$Id$" + +__all__ = ['new', 'digest_size', 'MD5Hash' ] + +from Crypto.Util.py3compat import * +from Crypto.Hash.hashalgo import HashAlgo + +try: + # The md5 module is deprecated in Python 2.6, so use hashlib when possible. + import hashlib + hashFactory = hashlib.md5 + +except ImportError: + import md5 + hashFactory = md5 + +class MD5Hash(HashAlgo): + """Class that implements an MD5 hash + + :undocumented: block_size + """ + + #: ASN.1 Object identifier (OID):: + #: + #: id-md5 OBJECT IDENTIFIER ::= { + #: iso(1) member-body(2) us(840) rsadsi(113549) + #: digestAlgorithm(2) 5 + #: } + #: + #: This value uniquely identifies the MD5 algorithm. + oid = b('\x06\x08\x2a\x86\x48\x86\xf7\x0d\x02\x05') + + digest_size = 16 + block_size = 64 + + def __init__(self, data=None): + HashAlgo.__init__(self, hashFactory, data) + + def new(self, data=None): + return MD5Hash(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 `MD5Hash.update()`. + Optional. + + :Return: A `MD5Hash` object + """ + return MD5Hash().new(data) + +#: The size of the resulting hash in bytes. +digest_size = MD5Hash.digest_size + +#: The internal block size of the hash algorithm in bytes. +block_size = MD5Hash.block_size + diff --git a/frozen_deps/Crypto/Hash/RIPEMD.py b/frozen_deps/Crypto/Hash/RIPEMD.py new file mode 100644 index 0000000..33099cb --- /dev/null +++ b/frozen_deps/Crypto/Hash/RIPEMD.py @@ -0,0 +1,94 @@ +# -*- 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. +# =================================================================== + +"""RIPEMD-160 cryptographic hash algorithm. + +RIPEMD-160_ produces the 160 bit digest of a message. + + >>> from Crypto.Hash import RIPEMD + >>> + >>> h = RIPEMD.new() + >>> h.update(b'Hello') + >>> print h.hexdigest() + +RIPEMD-160 stands for RACE Integrity Primitives Evaluation Message Digest +with a 160 bit digest. It was invented by Dobbertin, Bosselaers, and Preneel. + +This algorithm is considered secure, although it has not been scrutinized as +extensively as SHA-1. Moreover, it provides an informal security level of just +80bits. + +.. _RIPEMD-160: http://homes.esat.kuleuven.be/~bosselae/ripemd160.html +""" + +_revision__ = "$Id$" + +__all__ = ['new', 'digest_size', 'RIPEMD160Hash' ] + +from Crypto.Util.py3compat import * +from Crypto.Hash.hashalgo import HashAlgo + +import Crypto.Hash._RIPEMD160 as _RIPEMD160 +hashFactory = _RIPEMD160 + +class RIPEMD160Hash(HashAlgo): + """Class that implements a RIPMD-160 hash + + :undocumented: block_size + """ + + #: ASN.1 Object identifier (OID):: + #: + #: id-ripemd160 OBJECT IDENTIFIER ::= { + #: iso(1) identified-organization(3) teletrust(36) + #: algorithm(3) hashAlgorithm(2) ripemd160(1) + #: } + #: + #: This value uniquely identifies the RIPMD-160 algorithm. + oid = b("\x06\x05\x2b\x24\x03\x02\x01") + + digest_size = 20 + block_size = 64 + + def __init__(self, data=None): + HashAlgo.__init__(self, hashFactory, data) + + def new(self, data=None): + return RIPEMD160Hash(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 `RIPEMD160Hash.update()`. + Optional. + + :Return: A `RIPEMD160Hash` object + """ + return RIPEMD160Hash().new(data) + +#: The size of the resulting hash in bytes. +digest_size = RIPEMD160Hash.digest_size + +#: The internal block size of the hash algorithm in bytes. +block_size = RIPEMD160Hash.block_size + diff --git a/frozen_deps/Crypto/Hash/SHA.py b/frozen_deps/Crypto/Hash/SHA.py new file mode 100644 index 0000000..0bc5917 --- /dev/null +++ b/frozen_deps/Crypto/Hash/SHA.py @@ -0,0 +1,98 @@ +# -*- 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 + + diff --git a/frozen_deps/Crypto/Hash/SHA224.py b/frozen_deps/Crypto/Hash/SHA224.py new file mode 100644 index 0000000..959b56d --- /dev/null +++ b/frozen_deps/Crypto/Hash/SHA224.py @@ -0,0 +1,95 @@ +# -*- 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-224 cryptographic hash algorithm. + +SHA-224 belongs to the SHA-2_ family of cryptographic hashes. +It produces the 224 bit digest of a message. + + >>> from Crypto.Hash import SHA224 + >>> + >>> h = SHA224.new() + >>> h.update(b'Hello') + >>> print h.hexdigest() + +*SHA* stands for Secure Hash Algorithm. + +.. _SHA-2: http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf +""" + +_revision__ = "$Id$" + +__all__ = ['new', 'digest_size', 'SHA224Hash' ] + +from Crypto.Util.py3compat import * +from Crypto.Hash.hashalgo import HashAlgo + +try: + import hashlib + hashFactory = hashlib.sha224 + +except ImportError: + from Crypto.Hash import _SHA224 + hashFactory = _SHA224 + +class SHA224Hash(HashAlgo): + """Class that implements a SHA-224 hash + + :undocumented: block_size + """ + + #: ASN.1 Object identifier (OID):: + #: + #: id-sha224 OBJECT IDENTIFIER ::= { + #: joint-iso-itu-t(2) country(16) us(840) organization(1) gov(101) csor(3) + #: nistalgorithm(4) hashalgs(2) 4 + #: } + #: + #: This value uniquely identifies the SHA-224 algorithm. + oid = b('\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x04') + + digest_size = 28 + block_size = 64 + + def __init__(self, data=None): + HashAlgo.__init__(self, hashFactory, data) + + def new(self, data=None): + return SHA224Hash(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 `SHA224Hash.update()`. + Optional. + + :Return: A `SHA224Hash` object + """ + return SHA224Hash().new(data) + +#: The size of the resulting hash in bytes. +digest_size = SHA224Hash.digest_size + +#: The internal block size of the hash algorithm in bytes. +block_size = SHA224Hash.block_size + diff --git a/frozen_deps/Crypto/Hash/SHA256.py b/frozen_deps/Crypto/Hash/SHA256.py new file mode 100644 index 0000000..b0a99b3 --- /dev/null +++ b/frozen_deps/Crypto/Hash/SHA256.py @@ -0,0 +1,95 @@ +# -*- 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-256 cryptographic hash algorithm. + +SHA-256 belongs to the SHA-2_ family of cryptographic hashes. +It produces the 256 bit digest of a message. + + >>> from Crypto.Hash import SHA256 + >>> + >>> h = SHA256.new() + >>> h.update(b'Hello') + >>> print h.hexdigest() + +*SHA* stands for Secure Hash Algorithm. + +.. _SHA-2: http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf +""" + +_revision__ = "$Id$" + +__all__ = ['new', 'digest_size', 'SHA256Hash' ] + +from Crypto.Util.py3compat import * +from Crypto.Hash.hashalgo import HashAlgo + +try: + import hashlib + hashFactory = hashlib.sha256 + +except ImportError: + from Crypto.Hash import _SHA256 + hashFactory = _SHA256 + +class SHA256Hash(HashAlgo): + """Class that implements a SHA-256 hash + + :undocumented: block_size + """ + + #: ASN.1 Object identifier (OID):: + #: + #: id-sha256 OBJECT IDENTIFIER ::= { + #: joint-iso-itu-t(2) country(16) us(840) organization(1) + #: gov(101) csor(3) nistalgorithm(4) hashalgs(2) 1 + #: } + #: + #: This value uniquely identifies the SHA-256 algorithm. + oid = b('\x06\x09\x60\x86\x48\x01\x65\x03\x04\x02\x01') + + digest_size = 32 + block_size = 64 + + def __init__(self, data=None): + HashAlgo.__init__(self, hashFactory, data) + + def new(self, data=None): + return SHA256Hash(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 `SHA256Hash.update()`. + Optional. |