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Diffstat (limited to 'frozen_deps/Crypto/Cipher')
20 files changed, 0 insertions, 1806 deletions
diff --git a/frozen_deps/Crypto/Cipher/AES.py b/frozen_deps/Crypto/Cipher/AES.py deleted file mode 100644 index 14f68d8..0000000 --- a/frozen_deps/Crypto/Cipher/AES.py +++ /dev/null @@ -1,115 +0,0 @@ -# -*- coding: utf-8 -*- -# -# Cipher/AES.py : AES -# -# =================================================================== -# 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. -# =================================================================== -"""AES symmetric cipher - -AES `(Advanced Encryption Standard)`__ is a symmetric block cipher standardized -by NIST_ . It has a fixed data block size of 16 bytes. -Its keys can be 128, 192, or 256 bits long. - -AES is very fast and secure, and it is the de facto standard for symmetric -encryption. - -As an example, encryption can be done as follows: - - >>> from Crypto.Cipher import AES - >>> from Crypto import Random - >>> - >>> key = b'Sixteen byte key' - >>> iv = Random.new().read(AES.block_size) - >>> cipher = AES.new(key, AES.MODE_CFB, iv) - >>> msg = iv + cipher.encrypt(b'Attack at dawn') - -.. __: http://en.wikipedia.org/wiki/Advanced_Encryption_Standard -.. _NIST: http://csrc.nist.gov/publications/fips/fips197/fips-197.pdf - -:undocumented: __revision__, __package__ -""" - -__revision__ = "$Id$" - -from Crypto.Cipher import blockalgo -from Crypto.Cipher import _AES - -class AESCipher (blockalgo.BlockAlgo): - """AES cipher object""" - - def __init__(self, key, *args, **kwargs): - """Initialize an AES cipher object - - See also `new()` at the module level.""" - blockalgo.BlockAlgo.__init__(self, _AES, key, *args, **kwargs) - -def new(key, *args, **kwargs): - """Create a new AES cipher - - :Parameters: - key : byte string - The secret key to use in the symmetric cipher. - It must be 16 (*AES-128*), 24 (*AES-192*), or 32 (*AES-256*) bytes long. - :Keywords: - mode : a *MODE_** constant - The chaining mode to use for encryption or decryption. - Default is `MODE_ECB`. - IV : byte string - The initialization vector to use for encryption or decryption. - - It is ignored for `MODE_ECB` and `MODE_CTR`. - - For `MODE_OPENPGP`, IV must be `block_size` bytes long for encryption - and `block_size` +2 bytes for decryption (in the latter case, it is - actually the *encrypted* IV which was prefixed to the ciphertext). - It is mandatory. - - For all other modes, it must be `block_size` bytes longs. It is optional and - when not present it will be given a default value of all zeroes. - counter : callable - (*Only* `MODE_CTR`). A stateful function that returns the next - *counter block*, which is a byte string of `block_size` bytes. - For better performance, use `Crypto.Util.Counter`. - segment_size : integer - (*Only* `MODE_CFB`).The number of bits the plaintext and ciphertext - are segmented in. - It must be a multiple of 8. If 0 or not specified, it will be assumed to be 8. - - :Return: an `AESCipher` object - """ - return AESCipher(key, *args, **kwargs) - -#: Electronic Code Book (ECB). See `blockalgo.MODE_ECB`. -MODE_ECB = 1 -#: Cipher-Block Chaining (CBC). See `blockalgo.MODE_CBC`. -MODE_CBC = 2 -#: Cipher FeedBack (CFB). See `blockalgo.MODE_CFB`. -MODE_CFB = 3 -#: This mode should not be used. -MODE_PGP = 4 -#: Output FeedBack (OFB). See `blockalgo.MODE_OFB`. -MODE_OFB = 5 -#: CounTer Mode (CTR). See `blockalgo.MODE_CTR`. -MODE_CTR = 6 -#: OpenPGP Mode. See `blockalgo.MODE_OPENPGP`. -MODE_OPENPGP = 7 -#: Size of a data block (in bytes) -block_size = 16 -#: Size of a key (in bytes) -key_size = ( 16, 24, 32 ) - diff --git a/frozen_deps/Crypto/Cipher/ARC2.py b/frozen_deps/Crypto/Cipher/ARC2.py deleted file mode 100644 index b5234e6..0000000 --- a/frozen_deps/Crypto/Cipher/ARC2.py +++ /dev/null @@ -1,130 +0,0 @@ -# -*- coding: utf-8 -*- -# -# Cipher/ARC2.py : ARC2.py -# -# =================================================================== -# 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. -# =================================================================== -"""RC2 symmetric cipher - -RC2_ (Rivest's Cipher version 2) is a symmetric block cipher designed -by Ron Rivest in 1987. The cipher started as a proprietary design, -that was reverse engineered and anonymously posted on Usenet in 1996. -For this reason, the algorithm was first called *Alleged* RC2 (ARC2), -since the company that owned RC2 (RSA Data Inc.) did not confirm whether -the details leaked into public domain were really correct. - -The company eventually published its full specification in RFC2268_. - -RC2 has a fixed data block size of 8 bytes. Length of its keys can vary from -8 to 128 bits. One particular property of RC2 is that the actual -cryptographic strength of the key (*effective key length*) can be reduced -via a parameter. - -Even though RC2 is not cryptographically broken, it has not been analyzed as -thoroughly as AES, which is also faster than RC2. - -New designs should not use RC2. - -As an example, encryption can be done as follows: - - >>> from Crypto.Cipher import ARC2 - >>> from Crypto import Random - >>> - >>> key = b'Sixteen byte key' - >>> iv = Random.new().read(ARC2.block_size) - >>> cipher = ARC2.new(key, ARC2.MODE_CFB, iv) - >>> msg = iv + cipher.encrypt(b'Attack at dawn') - -.. _RC2: http://en.wikipedia.org/wiki/RC2 -.. _RFC2268: http://tools.ietf.org/html/rfc2268 - -:undocumented: __revision__, __package__ -""" - -__revision__ = "$Id$" - -from Crypto.Cipher import blockalgo -from Crypto.Cipher import _ARC2 - -class RC2Cipher (blockalgo.BlockAlgo): - """RC2 cipher object""" - - def __init__(self, key, *args, **kwargs): - """Initialize an ARC2 cipher object - - See also `new()` at the module level.""" - blockalgo.BlockAlgo.__init__(self, _ARC2, key, *args, **kwargs) - -def new(key, *args, **kwargs): - """Create a new RC2 cipher - - :Parameters: - key : byte string - The secret key to use in the symmetric cipher. - Its length can vary from 1 to 128 bytes. - :Keywords: - mode : a *MODE_** constant - The chaining mode to use for encryption or decryption. - Default is `MODE_ECB`. - IV : byte string - The initialization vector to use for encryption or decryption. - - It is ignored for `MODE_ECB` and `MODE_CTR`. - - For `MODE_OPENPGP`, IV must be `block_size` bytes long for encryption - and `block_size` +2 bytes for decryption (in the latter case, it is - actually the *encrypted* IV which was prefixed to the ciphertext). - It is mandatory. - - For all other modes, it must be `block_size` bytes longs. It is optional and - when not present it will be given a default value of all zeroes. - counter : callable - (*Only* `MODE_CTR`). A stateful function that returns the next - *counter block*, which is a byte string of `block_size` bytes. - For better performance, use `Crypto.Util.Counter`. - segment_size : integer - (*Only* `MODE_CFB`).The number of bits the plaintext and ciphertext - are segmented in. - It must be a multiple of 8. If 0 or not specified, it will be assumed to be 8. - effective_keylen : integer - Maximum cryptographic strength of the key, in bits. - It can vary from 0 to 1024. The default value is 1024. - - :Return: an `RC2Cipher` object - """ - return RC2Cipher(key, *args, **kwargs) - -#: Electronic Code Book (ECB). See `blockalgo.MODE_ECB`. -MODE_ECB = 1 -#: Cipher-Block Chaining (CBC). See `blockalgo.MODE_CBC`. -MODE_CBC = 2 -#: Cipher FeedBack (CFB). See `blockalgo.MODE_CFB`. -MODE_CFB = 3 -#: This mode should not be used. -MODE_PGP = 4 -#: Output FeedBack (OFB). See `blockalgo.MODE_OFB`. -MODE_OFB = 5 -#: CounTer Mode (CTR). See `blockalgo.MODE_CTR`. -MODE_CTR = 6 -#: OpenPGP Mode. See `blockalgo.MODE_OPENPGP`. -MODE_OPENPGP = 7 -#: Size of a data block (in bytes) -block_size = 8 -#: Size of a key (in bytes) -key_size = range(1,16+1) - diff --git a/frozen_deps/Crypto/Cipher/ARC4.py b/frozen_deps/Crypto/Cipher/ARC4.py deleted file mode 100644 index d83f75b..0000000 --- a/frozen_deps/Crypto/Cipher/ARC4.py +++ /dev/null @@ -1,120 +0,0 @@ -# -*- coding: utf-8 -*- -# -# Cipher/ARC4.py : ARC4 -# -# =================================================================== -# 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. -# =================================================================== -"""ARC4 symmetric cipher - -ARC4_ (Alleged RC4) is an implementation of RC4 (Rivest's Cipher version 4), -a symmetric stream cipher designed by Ron Rivest in 1987. - -The cipher started as a proprietary design, that was reverse engineered and -anonymously posted on Usenet in 1994. The company that owns RC4 (RSA Data -Inc.) never confirmed the correctness of the leaked algorithm. - -Unlike RC2, the company has never published the full specification of RC4, -of whom it still holds the trademark. - -ARC4 keys can vary in length from 40 to 2048 bits. - -One problem of ARC4 is that it does not take a nonce or an IV. If it is required -to encrypt multiple messages with the same long-term key, a distinct -independent nonce must be created for each message, and a short-term key must -be derived from the combination of the long-term key and the nonce. -Due to the weak key scheduling algorithm of RC2, the combination must be carried -out with a complex function (e.g. a cryptographic hash) and not by simply -concatenating key and nonce. - -New designs should not use ARC4. A good alternative is AES -(`Crypto.Cipher.AES`) in any of the modes that turn it into a stream cipher (OFB, CFB, or CTR). - -As an example, encryption can be done as follows: - - >>> from Crypto.Cipher import ARC4 - >>> from Crypto.Hash import SHA - >>> from Crypto import Random - >>> - >>> key = b'Very long and confidential key' - >>> nonce = Random.new().read(16) - >>> tempkey = SHA.new(key+nonce).digest() - >>> cipher = ARC4.new(tempkey) - >>> msg = nonce + cipher.encrypt(b'Open the pod bay doors, HAL') - -.. _ARC4: http://en.wikipedia.org/wiki/RC4 - -:undocumented: __revision__, __package__ -""" - -__revision__ = "$Id$" - -from Crypto.Cipher import _ARC4 - -class ARC4Cipher: - """ARC4 cipher object""" - - - def __init__(self, key, *args, **kwargs): - """Initialize an ARC4 cipher object - - See also `new()` at the module level.""" - - self._cipher = _ARC4.new(key, *args, **kwargs) - self.block_size = self._cipher.block_size - self.key_size = self._cipher.key_size - - def encrypt(self, plaintext): - """Encrypt a piece of data. - - :Parameters: - plaintext : byte string - The piece of data to encrypt. It can be of any size. - :Return: the encrypted data (byte string, as long as the - plaintext). - """ - return self._cipher.encrypt(plaintext) - - def decrypt(self, ciphertext): - """Decrypt a piece of data. - - :Parameters: - ciphertext : byte string - The piece of data to decrypt. It can be of any size. - :Return: the decrypted data (byte string, as long as the - ciphertext). - """ - return self._cipher.decrypt(ciphertext) - -def new(key, *args, **kwargs): - """Create a new ARC4 cipher - - :Parameters: - key : byte string - The secret key to use in the symmetric cipher. - It can have any length, with a minimum of 40 bytes. - Its cryptograpic strength is always capped to 2048 bits (256 bytes). - - :Return: an `ARC4Cipher` object - """ - return ARC4Cipher(key, *args, **kwargs) - -#: Size of a data block (in bytes) -block_size = 1 -#: Size of a key (in bytes) -key_size = range(1,256+1) - diff --git a/frozen_deps/Crypto/Cipher/Blowfish.py b/frozen_deps/Crypto/Cipher/Blowfish.py deleted file mode 100644 index 8c81d96..0000000 --- a/frozen_deps/Crypto/Cipher/Blowfish.py +++ /dev/null @@ -1,121 +0,0 @@ -# -*- coding: utf-8 -*- -# -# Cipher/Blowfish.py : Blowfish -# -# =================================================================== -# 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. -# =================================================================== -"""Blowfish symmetric cipher - -Blowfish_ is a symmetric block cipher designed by Bruce Schneier. - -It has a fixed data block size of 8 bytes and its keys can vary in length -from 32 to 448 bits (4 to 56 bytes). - -Blowfish is deemed secure and it is fast. However, its keys should be chosen -to be big enough to withstand a brute force attack (e.g. at least 16 bytes). - -As an example, encryption can be done as follows: - - >>> from Crypto.Cipher import Blowfish - >>> from Crypto import Random - >>> from struct import pack - >>> - >>> bs = Blowfish.block_size - >>> key = b'An arbitrarily long key' - >>> iv = Random.new().read(bs) - >>> cipher = Blowfish.new(key, Blowfish.MODE_CBC, iv) - >>> plaintext = b'docendo discimus ' - >>> plen = bs - divmod(len(plaintext),bs)[1] - >>> padding = [plen]*plen - >>> padding = pack('b'*plen, *padding) - >>> msg = iv + cipher.encrypt(plaintext + padding) - -.. _Blowfish: http://www.schneier.com/blowfish.html - -:undocumented: __revision__, __package__ -""" - -__revision__ = "$Id$" - -from Crypto.Cipher import blockalgo -from Crypto.Cipher import _Blowfish - -class BlowfishCipher (blockalgo.BlockAlgo): - """Blowfish cipher object""" - - def __init__(self, key, *args, **kwargs): - """Initialize a Blowfish cipher object - - See also `new()` at the module level.""" - blockalgo.BlockAlgo.__init__(self, _Blowfish, key, *args, **kwargs) - -def new(key, *args, **kwargs): - """Create a new Blowfish cipher - - :Parameters: - key : byte string - The secret key to use in the symmetric cipher. - Its length can vary from 4 to 56 bytes. - :Keywords: - mode : a *MODE_** constant - The chaining mode to use for encryption or decryption. - Default is `MODE_ECB`. - IV : byte string - The initialization vector to use for encryption or decryption. - - It is ignored for `MODE_ECB` and `MODE_CTR`. - - For `MODE_OPENPGP`, IV must be `block_size` bytes long for encryption - and `block_size` +2 bytes for decryption (in the latter case, it is - actually the *encrypted* IV which was prefixed to the ciphertext). - It is mandatory. - - For all other modes, it must be `block_size` bytes longs. It is optional and - when not present it will be given a default value of all zeroes. - counter : callable - (*Only* `MODE_CTR`). A stateful function that returns the next - *counter block*, which is a byte string of `block_size` bytes. - For better performance, use `Crypto.Util.Counter`. - segment_size : integer - (*Only* `MODE_CFB`).The number of bits the plaintext and ciphertext - are segmented in. - It must be a multiple of 8. If 0 or not specified, it will be assumed to be 8. - - :Return: a `BlowfishCipher` object - """ - return BlowfishCipher(key, *args, **kwargs) - -#: Electronic Code Book (ECB). See `blockalgo.MODE_ECB`. -MODE_ECB = 1 -#: Cipher-Block Chaining (CBC). See `blockalgo.MODE_CBC`. -MODE_CBC = 2 -#: Cipher FeedBack (CFB). See `blockalgo.MODE_CFB`. -MODE_CFB = 3 -#: This mode should not be used. -MODE_PGP = 4 -#: Output FeedBack (OFB). See `blockalgo.MODE_OFB`. -MODE_OFB = 5 -#: CounTer Mode (CTR). See `blockalgo.MODE_CTR`. -MODE_CTR = 6 -#: OpenPGP Mode. See `blockalgo.MODE_OPENPGP`. -MODE_OPENPGP = 7 -#: Size of a data block (in bytes) -block_size = 8 -#: Size of a key (in bytes) -key_size = range(4,56+1) - diff --git a/frozen_deps/Crypto/Cipher/CAST.py b/frozen_deps/Crypto/Cipher/CAST.py deleted file mode 100644 index 89543b2..0000000 --- a/frozen_deps/Crypto/Cipher/CAST.py +++ /dev/null @@ -1,123 +0,0 @@ -# -*- coding: utf-8 -*- -# -# Cipher/CAST.py : CAST -# -# =================================================================== -# 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. -# =================================================================== -"""CAST-128 symmetric cipher - -CAST-128_ (or CAST5) is a symmetric block cipher specified in RFC2144_. - -It has a fixed data block size of 8 bytes. Its key can vary in length -from 40 to 128 bits. - -CAST is deemed to be cryptographically secure, but its usage is not widespread. -Keys of sufficient length should be used to prevent brute force attacks -(128 bits are recommended). - -As an example, encryption can be done as follows: - - >>> from Crypto.Cipher import CAST - >>> from Crypto import Random - >>> - >>> key = b'Sixteen byte key' - >>> iv = Random.new().read(CAST.block_size) - >>> cipher = CAST.new(key, CAST.MODE_OPENPGP, iv) - >>> plaintext = b'sona si latine loqueris ' - >>> msg = cipher.encrypt(plaintext) - >>> - ... - >>> eiv = msg[:CAST.block_size+2] - >>> ciphertext = msg[CAST.block_size+2:] - >>> cipher = CAST.new(key, CAST.MODE_OPENPGP, eiv) - >>> print cipher.decrypt(ciphertext) - -.. _CAST-128: http://en.wikipedia.org/wiki/CAST-128 -.. _RFC2144: http://tools.ietf.org/html/rfc2144 - -:undocumented: __revision__, __package__ -""" - -__revision__ = "$Id$" - -from Crypto.Cipher import blockalgo -from Crypto.Cipher import _CAST - -class CAST128Cipher(blockalgo.BlockAlgo): - """CAST-128 cipher object""" - - def __init__(self, key, *args, **kwargs): - """Initialize a CAST-128 cipher object - - See also `new()` at the module level.""" - blockalgo.BlockAlgo.__init__(self, _CAST, key, *args, **kwargs) - -def new(key, *args, **kwargs): - """Create a new CAST-128 cipher - - :Parameters: - key : byte string - The secret key to use in the symmetric cipher. - Its length may vary from 5 to 16 bytes. - :Keywords: - mode : a *MODE_** constant - The chaining mode to use for encryption or decryption. - Default is `MODE_ECB`. - IV : byte string - The initialization vector to use for encryption or decryption. - - It is ignored for `MODE_ECB` and `MODE_CTR`. - - For `MODE_OPENPGP`, IV must be `block_size` bytes long for encryption - and `block_size` +2 bytes for decryption (in the latter case, it is - actually the *encrypted* IV which was prefixed to the ciphertext). - It is mandatory. - - For all other modes, it must be `block_size` bytes longs. It is optional and - when not present it will be given a default value of all zeroes. - counter : callable - (*Only* `MODE_CTR`). A stateful function that returns the next - *counter block*, which is a byte string of `block_size` bytes. - For better performance, use `Crypto.Util.Counter`. - segment_size : integer - (*Only* `MODE_CFB`).The number of bits the plaintext and ciphertext - are segmented in. - It must be a multiple of 8. If 0 or not specified, it will be assumed to be 8. - - :Return: an `CAST128Cipher` object - """ - return CAST128Cipher(key, *args, **kwargs) - -#: Electronic Code Book (ECB). See `blockalgo.MODE_ECB`. -MODE_ECB = 1 -#: Cipher-Block Chaining (CBC). See `blockalgo.MODE_CBC`. -MODE_CBC = 2 -#: Cipher FeedBack (CFB). See `blockalgo.MODE_CFB`. -MODE_CFB = 3 -#: This mode should not be used. -MODE_PGP = 4 -#: Output FeedBack (OFB). See `blockalgo.MODE_OFB`. -MODE_OFB = 5 -#: CounTer Mode (CTR). See `blockalgo.MODE_CTR`. -MODE_CTR = 6 -#: OpenPGP Mode. See `blockalgo.MODE_OPENPGP`. -MODE_OPENPGP = 7 -#: Size of a data block (in bytes) -block_size = 8 -#: Size of a key (in bytes) -key_size = range(5,16+1) diff --git a/frozen_deps/Crypto/Cipher/DES.py b/frozen_deps/Crypto/Cipher/DES.py deleted file mode 100644 index 2fae42f..0000000 --- a/frozen_deps/Crypto/Cipher/DES.py +++ /dev/null @@ -1,118 +0,0 @@ -# -*- coding: utf-8 -*- -# -# Cipher/DES.py : DES -# -# =================================================================== -# 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. -# =================================================================== -"""DES symmetric cipher - -DES `(Data Encryption Standard)`__ is a symmetric block cipher standardized -by NIST_ . It has a fixed data block size of 8 bytes. -Its keys are 64 bits long, even though 8 bits were used for integrity (now they -are ignored) and do not contribute to securty. - -DES is cryptographically secure, but its key length is too short by nowadays -standards and it could be brute forced with some effort. - -DES should not be used for new designs. Use `AES`. - -As an example, encryption can be done as follows: - - >>> from Crypto.Cipher import DES3 - >>> from Crypto import Random - >>> - >>> key = b'Sixteen byte key' - >>> iv = Random.new().read(DES3.block_size) - >>> cipher = DES3.new(key, DES3.MODE_OFB, iv) - >>> plaintext = b'sona si latine loqueris ' - >>> msg = iv + cipher.encrypt(plaintext) - -.. __: http://en.wikipedia.org/wiki/Data_Encryption_Standard -.. _NIST: http://csrc.nist.gov/publications/fips/fips46-3/fips46-3.pdf - -:undocumented: __revision__, __package__ -""" - -__revision__ = "$Id$" - -from Crypto.Cipher import blockalgo -from Crypto.Cipher import _DES - -class DESCipher(blockalgo.BlockAlgo): - """DES cipher object""" - - def __init__(self, key, *args, **kwargs): - """Initialize a DES cipher object - - See also `new()` at the module level.""" - blockalgo.BlockAlgo.__init__(self, _DES, key, *args, **kwargs) - -def new(key, *args, **kwargs): - """Create a new DES cipher - - :Parameters: - key : byte string - The secret key to use in the symmetric cipher. - It must be 8 byte long. The parity bits will be ignored. - :Keywords: - mode : a *MODE_** constant - The chaining mode to use for encryption or decryption. - Default is `MODE_ECB`. - IV : byte string - The initialization vector to use for encryption or decryption. - - It is ignored for `MODE_ECB` and `MODE_CTR`. - - For `MODE_OPENPGP`, IV must be `block_size` bytes long for encryption - and `block_size` +2 bytes for decryption (in the latter case, it is - actually the *encrypted* IV which was prefixed to the ciphertext). - It is mandatory. - - For all other modes, it must be `block_size` bytes longs. It is optional and - when not present it will be given a default value of all zeroes. - counter : callable - (*Only* `MODE_CTR`). A stateful function that returns the next - *counter block*, which is a byte string of `block_size` bytes. - For better performance, use `Crypto.Util.Counter`. - segment_size : integer - (*Only* `MODE_CFB`).The number of bits the plaintext and ciphertext - are segmented in. - It must be a multiple of 8. If 0 or not specified, it will be assumed to be 8. - - :Return: an `DESCipher` object - """ - return DESCipher(key, *args, **kwargs) - -#: Electronic Code Book (ECB). See `blockalgo.MODE_ECB`. -MODE_ECB = 1 -#: Cipher-Block Chaining (CBC). See `blockalgo.MODE_CBC`. -MODE_CBC = 2 -#: Cipher FeedBack (CFB). See `blockalgo.MODE_CFB`. -MODE_CFB = 3 -#: This mode should not be used. -MODE_PGP = 4 -#: Output FeedBack (OFB). See `blockalgo.MODE_OFB`. -MODE_OFB = 5 -#: CounTer Mode (CTR). See `blockalgo.MODE_CTR`. -MODE_CTR = 6 -#: OpenPGP Mode. See `blockalgo.MODE_OPENPGP`. -MODE_OPENPGP = 7 -#: Size of a data block (in bytes) -block_size = 8 -#: Size of a key (in bytes) -key_size = 8 diff --git a/frozen_deps/Crypto/Cipher/DES3.py b/frozen_deps/Crypto/Cipher/DES3.py deleted file mode 100644 index 7fedac8..0000000 --- a/frozen_deps/Crypto/Cipher/DES3.py +++ /dev/null @@ -1,133 +0,0 @@ -# -*- coding: utf-8 -*- -# -# Cipher/DES3.py : DES3 -# -# =================================================================== -# 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. -# =================================================================== -"""Triple DES symmetric cipher - -`Triple DES`__ (or TDES or TDEA or 3DES) is a symmetric block cipher standardized by NIST_. -It has a fixed data block size of 8 bytes. Its keys are 128 (*Option 1*) or 192 -bits (*Option 2*) long. -However, 1 out of 8 bits is used for redundancy and do not contribute to -security. The effective key length is respectively 112 or 168 bits. - -TDES consists of the concatenation of 3 simple `DES` ciphers. - -The plaintext is first DES encrypted with *K1*, then decrypted with *K2*, -and finally encrypted again with *K3*. The ciphertext is decrypted in the reverse manner. - -The 192 bit key is a bundle of three 64 bit independent subkeys: *K1*, *K2*, and *K3*. - -The 128 bit key is split into *K1* and *K2*, whereas *K1=K3*. - -It is important that all subkeys are different, otherwise TDES would degrade to -single `DES`. - -TDES is cryptographically secure, even though it is neither as secure nor as fast -as `AES`. - -As an example, encryption can be done as follows: - - >>> from Crypto.Cipher import DES - >>> from Crypto import Random - >>> from Crypto.Util import Counter - >>> - >>> key = b'-8B key-' - >>> nonce = Random.new().read(DES.block_size/2) - >>> ctr = Counter.new(DES.block_size*8/2, prefix=nonce) - >>> cipher = DES.new(key, DES.MODE_CTR, counter=ctr) - >>> plaintext = b'We are no longer the knights who say ni!' - >>> msg = nonce + cipher.encrypt(plaintext) - -.. __: http://en.wikipedia.org/wiki/Triple_DES -.. _NIST: http://csrc.nist.gov/publications/nistpubs/800-67/SP800-67.pdf - -:undocumented: __revision__, __package__ -""" - -__revision__ = "$Id$" - -from Crypto.Cipher import blockalgo -from Crypto.Cipher import _DES3 - -class DES3Cipher(blockalgo.BlockAlgo): - """TDES cipher object""" - - def _ |