[Pymoul-svn] SF.net SVN: pymoul: [224] xtea/trunk/src/xtea
Status: Alpha
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[Pymoul-svn] SF.net SVN: pymoul: [224] xtea/trunk/src/xtea
|
From: <ti...@us...> - 2007-03-02 16:28:17
|
Revision: 224
http://pymoul.svn.sourceforge.net/pymoul/?rev=224&view=rev
Author: tiran
Date: 2007-03-02 08:28:11 -0800 (Fri, 02 Mar 2007)
Log Message:
-----------
Redesign of the package. Moved common stuf to common
Fixed broken naming in pyx code
Modified Paths:
--------------
xtea/trunk/src/xtea/__init__.py
xtea/trunk/src/xtea/_xtea.c
xtea/trunk/src/xtea/_xtea.pyx
xtea/trunk/src/xtea/cxtea.c
xtea/trunk/src/xtea/cxtea.h
xtea/trunk/src/xtea/tests.py
xtea/trunk/src/xtea/xtea.py
Added Paths:
-----------
xtea/trunk/src/xtea/_common.py
Modified: xtea/trunk/src/xtea/__init__.py
===================================================================
--- xtea/trunk/src/xtea/__init__.py 2007-03-02 14:54:09 UTC (rev 223)
+++ xtea/trunk/src/xtea/__init__.py 2007-03-02 16:28:11 UTC (rev 224)
@@ -1,7 +1,11 @@
# xtea package
-from xtea import new
-from xtea import MODE_ECB
-from xtea import MODE_OFB
-from xtea import BIG_ENDIAN
-from xtea import LITTLE_ENDIAN
-from xtea import NETWORK_ENDIAN
+from xtea import XTEA
+#from xxtea import XXTEA
+
+from _common import MODE_ECB
+from _common import MODE_OFB
+from _common import BIG_ENDIAN
+from _common import LITTLE_ENDIAN
+from _common import NETWORK_ENDIAN
+from _common import HOST_ENDIAN
+from _common import pad
Added: xtea/trunk/src/xtea/_common.py
===================================================================
--- xtea/trunk/src/xtea/_common.py (rev 0)
+++ xtea/trunk/src/xtea/_common.py 2007-03-02 16:28:11 UTC (rev 224)
@@ -0,0 +1,151 @@
+"""
+"""
+from struct import pack
+from struct import unpack
+import sys
+
+__all__ = ['MODE_ECB', 'MODE_OFB', 'BIG_ENDIAN', 'LITTLE_ENDIAN',
+ 'NETWORK_ENDIAN', 'HOST_ENDIAN', 'pad']
+
+MODE_ECB = 1 # Electronic Code Book
+MODE_CBC = 2 # Cipher Block Chaining
+MODE_CFB = 4 # Cipher Feedback
+MODE_OFB = 5 # Output Feedback
+MODE_CTR = 6 # Counter
+BIG_ENDIAN = 'big'
+LITTLE_ENDIAN = 'little'
+NETWORK_ENDIAN = LITTLE_ENDIAN
+HOST_ENDIAN = sys.byteorder
+NULL='\x00'
+ULONG_SIZE=4
+
+def pad(s, align, char=NULL):
+ """Pad string 's' to 'align' number of elements with char 'char'
+
+ >>> pad('abcd', 4)
+ 'abcd'
+ >>> pad('abcdabcd', 4)
+ 'abcdabcd'
+ >>> pad('abcdef', 4)
+ 'abcdef\\x00\\x00'
+ >>> pad('abcdef', 4, char='0')
+ 'abcdef00'
+ """
+ mod = len(s) % align
+ if mod != 0:
+ return s+mod*char
+ else:
+ return s
+
+class _AbstractTEA(object):
+ """Abstract TEA base class
+ """
+ @property
+ def key_size(self):
+ """Size of key
+ """
+ return 16
+
+ @property
+ def block_size(self):
+ """Size of blocks
+ """
+ return 8
+
+ @property
+ def default_rounds(self):
+ """Default number of rounds
+ """
+ return 32
+
+ def __init__(self, key, mode=MODE_ECB, IV=8*NULL, rounds=None,
+ endian=HOST_ENDIAN, counter=None, segment_size=None):
+ if endian == BIG_ENDIAN:
+ self._endian = ">"
+ elif endian == LITTLE_ENDIAN:
+ self._endian = "<"
+ else:
+ raise ValueError("Unknown endian: %s" % endian)
+
+ ks = self.key_size
+ if isinstance(key, tuple):
+ if len(key) != ks/ULONG_SIZE:
+ raise ValueError("Invalid key size")
+ for e in key:
+ if not isinstance(e, (long, int)):
+ raise TypeError("Wrong type %s in key" % repr(e))
+ self._key = key
+ elif isinstance(key, str):
+ if len(key) != ks:
+ raise ValueError("Invalid key size")
+ self._key = unpack("%s%iL" % (self._endian, ks/ULONG_SIZE), key)
+ else:
+ raise TypeError("Invalid key type")
+
+ if mode == MODE_ECB:
+ pass
+ elif mode == MODE_OFB:
+ if not isinstance(IV, str) or len(IV) != self.block_size:
+ raise ValueError("Invalid IV")
+ else:
+ raise ValueError("Unknown or unsupported mode")
+ self._mode = mode
+ self._iv = IV
+
+ if rounds is None:
+ rounds = self.default_rounds
+ if rounds < 2 or not isinstance(rounds, int):
+ raise ValueError("Invalid rounds")
+ self._rounds = rounds
+ self._counter = counter
+ self._segment_size = segment_size
+
+ @classmethod
+ def new(cls, key, **kwargs):
+ """PEP 272 conform constructor
+ """
+ return cls(key, **kwargs)
+
+ def encrypt(self, block):
+ """Encrypt a block
+
+ @param block: block to encrypt
+ @type block: str
+ """
+ if self._mode == MODE_ECB:
+ return self._ecb(block, func=self._encrypt)
+ elif self._mode == MODE_OFB:
+ return self._ofb(block)
+ else:
+ raise ValueError("Unknown or unsupported mode")
+
+ def decrypt(self, block):
+ """Decrypt a block
+
+ @param block: block to decrypt
+ @type block: str
+ """
+ if self._mode == MODE_ECB:
+ return self._ecb(block, func=self._decrypt)
+ elif self._mode == MODE_OFB:
+ return self._ofb(block)
+ else:
+ raise ValueError("Unknown or unsupported mode")
+
+ _decrypt = None
+ _encrypt = None
+
+ def _ecb(self, block, func):
+ """Electronic Code Book encryption/decryption
+
+ @type block: str
+ @param func: decrypt or encrypt function
+ @type func: callable
+ """
+ raise NotImplementedError
+
+ def _ofb(self, block):
+ """Output Feedback (OFB) encryption requires an IV
+ """
+ raise NotImplementedError
+
Property changes on: xtea/trunk/src/xtea/_common.py
___________________________________________________________________
Name: svn:keywords
+ 'Id Revision'
Name: svn:eol-style
+ native
Modified: xtea/trunk/src/xtea/_xtea.c
===================================================================
--- xtea/trunk/src/xtea/_xtea.c 2007-03-02 14:54:09 UTC (rev 223)
+++ xtea/trunk/src/xtea/_xtea.c 2007-03-02 16:28:11 UTC (rev 224)
@@ -1,4 +1,4 @@
-/* Generated by Pyrex 0.9.4.1 on Fri Mar 2 15:53:19 2007 */
+/* Generated by Pyrex 0.9.5.1a on Fri Mar 2 17:24:15 2007 */
#include "Python.h"
#include "structmember.h"
@@ -17,26 +17,6 @@
typedef struct {PyObject **p; char *s;} __Pyx_InternTabEntry; /*proto*/
typedef struct {PyObject **p; char *s; long n;} __Pyx_StringTabEntry; /*proto*/
-static PyObject *__Pyx_UnpackItem(PyObject *, int); /*proto*/
-static int __Pyx_EndUnpack(PyObject *, int); /*proto*/
-static int __Pyx_PrintItem(PyObject *); /*proto*/
-static int __Pyx_PrintNewline(void); /*proto*/
-static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb); /*proto*/
-static void __Pyx_ReRaise(void); /*proto*/
-static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list); /*proto*/
-static PyObject *__Pyx_GetExcValue(void); /*proto*/
-static int __Pyx_ArgTypeTest(PyObject *obj, PyTypeObject *type, int none_allowed, char *name); /*proto*/
-static int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type); /*proto*/
-static int __Pyx_GetStarArgs(PyObject **args, PyObject **kwds, char *kwd_list[], int nargs, PyObject **args2, PyObject **kwds2); /*proto*/
-static void __Pyx_WriteUnraisable(char *name); /*proto*/
-static void __Pyx_AddTraceback(char *funcname); /*proto*/
-static PyTypeObject *__Pyx_ImportType(char *module_name, char *class_name, long size); /*proto*/
-static int __Pyx_SetVtable(PyObject *dict, void *vtable); /*proto*/
-static int __Pyx_GetVtable(PyObject *dict, void *vtabptr); /*proto*/
-static PyObject *__Pyx_CreateClass(PyObject *bases, PyObject *dict, PyObject *name, char *modname); /*proto*/
-static int __Pyx_InternStrings(__Pyx_InternTabEntry *t); /*proto*/
-static int __Pyx_InitStrings(__Pyx_StringTabEntry *t); /*proto*/
-static PyObject *__Pyx_GetName(PyObject *dict, PyObject *name); /*proto*/
static PyObject *__pyx_m;
static PyObject *__pyx_b;
@@ -44,20 +24,32 @@
static char *__pyx_filename;
static char **__pyx_f;
+static PyObject *__Pyx_GetName(PyObject *dict, PyObject *name); /*proto*/
+
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb); /*proto*/
+
+static int __Pyx_InternStrings(__Pyx_InternTabEntry *t); /*proto*/
+
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t); /*proto*/
+
+static void __Pyx_AddTraceback(char *funcname); /*proto*/
+
/* Declarations from _xtea */
+
/* Implementation of _xtea */
-static PyObject *__pyx_n__c_xtea_encryptQuad;
-static PyObject *__pyx_n__c_xxtea_decryptQuad;
+static PyObject *__pyx_n__c_xtea_encrypt;
+static PyObject *__pyx_n__c_xtea_decrypt;
static PyObject *__pyx_n__c_xxtea_encrypt;
static PyObject *__pyx_n__c_xxtea_decrypt;
+static PyObject *__pyx_n_XXX_c_xxtea_encrypt;
+static PyObject *__pyx_n_XXX_c_xxtea_decrypt;
-static PyObject *__pyx_f_5_xtea__c_xtea_encryptQuad(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyObject *__pyx_f_5_xtea__c_xtea_encryptQuad(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
- unsigned long __pyx_v_v0;
- unsigned long __pyx_v_v1;
+static PyObject *__pyx_f_5_xtea__c_xtea_encrypt(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyObject *__pyx_f_5_xtea__c_xtea_encrypt(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+ PyObject *__pyx_v_block = 0;
PyObject *__pyx_v_key = 0;
unsigned int __pyx_v_rounds;
unsigned long (__pyx_v_v[2]);
@@ -69,17 +61,28 @@
PyObject *__pyx_2 = 0;
unsigned long __pyx_3;
PyObject *__pyx_4 = 0;
- static char *__pyx_argnames[] = {"v0","v1","key","rounds",0};
- if (!PyArg_ParseTupleAndKeywords(__pyx_args, __pyx_kwds, "kkOI", __pyx_argnames, &__pyx_v_v0, &__pyx_v_v1, &__pyx_v_key, &__pyx_v_rounds)) return 0;
+ static char *__pyx_argnames[] = {"block","key","rounds",0};
+ if (!PyArg_ParseTupleAndKeywords(__pyx_args, __pyx_kwds, "OOI", __pyx_argnames, &__pyx_v_block, &__pyx_v_key, &__pyx_v_rounds)) return 0;
+ Py_INCREF(__pyx_v_block);
Py_INCREF(__pyx_v_key);
__pyx_v_rc = Py_None; Py_INCREF(Py_None);
__pyx_v_result = Py_None; Py_INCREF(Py_None);
/* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":25 */
- (__pyx_v_v[0]) = __pyx_v_v0;
+ __pyx_1 = PyInt_FromLong(0); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 25; goto __pyx_L1;}
+ __pyx_2 = PyObject_GetItem(__pyx_v_block, __pyx_1); if (!__pyx_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 25; goto __pyx_L1;}
+ Py_DECREF(__pyx_1); __pyx_1 = 0;
+ __pyx_3 = PyInt_AsUnsignedLongMask(__pyx_2); if (PyErr_Occurred()) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 25; goto __pyx_L1;}
+ Py_DECREF(__pyx_2); __pyx_2 = 0;
+ (__pyx_v_v[0]) = __pyx_3;
/* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":25 */
- (__pyx_v_v[1]) = __pyx_v_v1;
+ __pyx_1 = PyInt_FromLong(1); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 25; goto __pyx_L1;}
+ __pyx_2 = PyObject_GetItem(__pyx_v_block, __pyx_1); if (!__pyx_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 25; goto __pyx_L1;}
+ Py_DECREF(__pyx_1); __pyx_1 = 0;
+ __pyx_3 = PyInt_AsUnsignedLongMask(__pyx_2); if (PyErr_Occurred()) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 25; goto __pyx_L1;}
+ Py_DECREF(__pyx_2); __pyx_2 = 0;
+ (__pyx_v_v[1]) = __pyx_3;
/* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":26 */
__pyx_1 = PyInt_FromLong(0); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 26; goto __pyx_L1;}
@@ -142,19 +145,19 @@
Py_XDECREF(__pyx_1);
Py_XDECREF(__pyx_2);
Py_XDECREF(__pyx_4);
- __Pyx_AddTraceback("_xtea._c_xtea_encryptQuad");
+ __Pyx_AddTraceback("_xtea._c_xtea_encrypt");
__pyx_r = 0;
__pyx_L0:;
Py_DECREF(__pyx_v_rc);
Py_DECREF(__pyx_v_result);
+ Py_DECREF(__pyx_v_block);
Py_DECREF(__pyx_v_key);
return __pyx_r;
}
-static PyObject *__pyx_f_5_xtea__c_xxtea_decryptQuad(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
-static PyObject *__pyx_f_5_xtea__c_xxtea_decryptQuad(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
- unsigned long __pyx_v_v0;
- unsigned long __pyx_v_v1;
+static PyObject *__pyx_f_5_xtea__c_xtea_decrypt(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
+static PyObject *__pyx_f_5_xtea__c_xtea_decrypt(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
+ PyObject *__pyx_v_block = 0;
PyObject *__pyx_v_key = 0;
unsigned int __pyx_v_rounds;
unsigned long (__pyx_v_v[2]);
@@ -166,17 +169,28 @@
PyObject *__pyx_2 = 0;
unsigned long __pyx_3;
PyObject *__pyx_4 = 0;
- static char *__pyx_argnames[] = {"v0","v1","key","rounds",0};
- if (!PyArg_ParseTupleAndKeywords(__pyx_args, __pyx_kwds, "kkOI", __pyx_argnames, &__pyx_v_v0, &__pyx_v_v1, &__pyx_v_key, &__pyx_v_rounds)) return 0;
+ static char *__pyx_argnames[] = {"block","key","rounds",0};
+ if (!PyArg_ParseTupleAndKeywords(__pyx_args, __pyx_kwds, "OOI", __pyx_argnames, &__pyx_v_block, &__pyx_v_key, &__pyx_v_rounds)) return 0;
+ Py_INCREF(__pyx_v_block);
Py_INCREF(__pyx_v_key);
__pyx_v_rc = Py_None; Py_INCREF(Py_None);
__pyx_v_result = Py_None; Py_INCREF(Py_None);
/* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":34 */
- (__pyx_v_v[0]) = __pyx_v_v0;
+ __pyx_1 = PyInt_FromLong(0); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 34; goto __pyx_L1;}
+ __pyx_2 = PyObject_GetItem(__pyx_v_block, __pyx_1); if (!__pyx_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 34; goto __pyx_L1;}
+ Py_DECREF(__pyx_1); __pyx_1 = 0;
+ __pyx_3 = PyInt_AsUnsignedLongMask(__pyx_2); if (PyErr_Occurred()) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 34; goto __pyx_L1;}
+ Py_DECREF(__pyx_2); __pyx_2 = 0;
+ (__pyx_v_v[0]) = __pyx_3;
/* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":34 */
- (__pyx_v_v[1]) = __pyx_v_v1;
+ __pyx_1 = PyInt_FromLong(1); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 34; goto __pyx_L1;}
+ __pyx_2 = PyObject_GetItem(__pyx_v_block, __pyx_1); if (!__pyx_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 34; goto __pyx_L1;}
+ Py_DECREF(__pyx_1); __pyx_1 = 0;
+ __pyx_3 = PyInt_AsUnsignedLongMask(__pyx_2); if (PyErr_Occurred()) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 34; goto __pyx_L1;}
+ Py_DECREF(__pyx_2); __pyx_2 = 0;
+ (__pyx_v_v[1]) = __pyx_3;
/* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":35 */
__pyx_1 = PyInt_FromLong(0); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 35; goto __pyx_L1;}
@@ -211,7 +225,7 @@
(__pyx_v_k[3]) = __pyx_3;
/* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":36 */
- __pyx_1 = PyInt_FromLong(xxtea_decipher(__pyx_v_v,__pyx_v_k,__pyx_v_rounds)); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 36; goto __pyx_L1;}
+ __pyx_1 = PyInt_FromLong(xtea_decipher(__pyx_v_v,__pyx_v_k,__pyx_v_rounds)); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 36; goto __pyx_L1;}
Py_DECREF(__pyx_v_rc);
__pyx_v_rc = __pyx_1;
__pyx_1 = 0;
@@ -239,18 +253,24 @@
Py_XDECREF(__pyx_1);
Py_XDECREF(__pyx_2);
Py_XDECREF(__pyx_4);
- __Pyx_AddTraceback("_xtea._c_xxtea_decryptQuad");
+ __Pyx_AddTraceback("_xtea._c_xtea_decrypt");
__pyx_r = 0;
__pyx_L0:;
Py_DECREF(__pyx_v_rc);
Py_DECREF(__pyx_v_result);
+ Py_DECREF(__pyx_v_block);
Py_DECREF(__pyx_v_key);
return __pyx_r;
}
static PyObject *__pyx_n_len;
+static PyObject *__pyx_n_ValueError;
static PyObject *__pyx_n_append;
+static PyObject *__pyx_k1p;
+
+static char (__pyx_k1[]) = "len(block) %i != rounds %i";
+
static PyObject *__pyx_f_5_xtea__c_xxtea_encrypt(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
static PyObject *__pyx_f_5_xtea__c_xxtea_encrypt(PyObject *__pyx_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
PyObject *__pyx_v_block = 0;
@@ -268,7 +288,8 @@
PyObject *__pyx_2 = 0;
PyObject *__pyx_3 = 0;
int __pyx_4;
- unsigned long __pyx_5;
+ PyObject *__pyx_5 = 0;
+ unsigned long __pyx_6;
static char *__pyx_argnames[] = {"block","key","rounds",0};
if (!PyArg_ParseTupleAndKeywords(__pyx_args, __pyx_kwds, "OOI", __pyx_argnames, &__pyx_v_block, &__pyx_v_key, &__pyx_v_rounds)) return 0;
Py_INCREF(__pyx_v_block);
@@ -288,87 +309,106 @@
__pyx_v_size = __pyx_4;
/* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":44 */
+ __pyx_4 = (__pyx_v_size != __pyx_v_rounds);
+ if (__pyx_4) {
+
+ /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":45 */
+ __pyx_1 = __Pyx_GetName(__pyx_b, __pyx_n_ValueError); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 45; goto __pyx_L1;}
+ __pyx_2 = PyInt_FromLong(__pyx_v_size); if (!__pyx_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 45; goto __pyx_L1;}
+ __pyx_3 = PyLong_FromUnsignedLong(__pyx_v_rounds); if (!__pyx_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 45; goto __pyx_L1;}
+ __pyx_5 = PyTuple_New(2); if (!__pyx_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 45; goto __pyx_L1;}
+ PyTuple_SET_ITEM(__pyx_5, 0, __pyx_2);
+ PyTuple_SET_ITEM(__pyx_5, 1, __pyx_3);
+ __pyx_2 = 0;
+ __pyx_3 = 0;
+ __pyx_2 = PyNumber_Remainder(__pyx_k1p, __pyx_5); if (!__pyx_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 45; goto __pyx_L1;}
+ Py_DECREF(__pyx_5); __pyx_5 = 0;
+ __Pyx_Raise(__pyx_1, __pyx_2, 0);
+ Py_DECREF(__pyx_1); __pyx_1 = 0;
+ Py_DECREF(__pyx_2); __pyx_2 = 0;
+ {__pyx_filename = __pyx_f[0]; __pyx_lineno = 45; goto __pyx_L1;}
+ goto __pyx_L2;
+ }
+ __pyx_L2:;
+
+ /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":46 */
__pyx_v_vsize = ((sizeof(unsigned long )) * __pyx_v_size);
- /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":45 */
+ /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":47 */
__pyx_v_v = ((unsigned long (*))malloc(__pyx_v_vsize));
- /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":46 */
+ /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":48 */
for (__pyx_v_i = 0; __pyx_v_i < __pyx_v_size; ++__pyx_v_i) {
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+ PyTuple_SET_ITEM(__pyx_5, 0, __pyx_2);
+ PyTuple_SET_ITEM(__pyx_5, 1, __pyx_3);
+ __pyx_2 = 0;
+ __pyx_3 = 0;
+ __pyx_2 = PyNumber_Remainder(__pyx_k4p, __pyx_5); if (!__pyx_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 93; goto __pyx_L1;}
+ Py_DECREF(__pyx_5); __pyx_5 = 0;
+ __Pyx_Raise(__pyx_1, __pyx_2, 0);
+ Py_DECREF(__pyx_1); __pyx_1 = 0;
+ Py_DECREF(__pyx_2); __pyx_2 = 0;
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+ goto __pyx_L2;
+ }
+ __pyx_L2:;
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+ __pyx_3 = PyInt_FromLong(0); if (!__pyx_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 94; goto __pyx_L1;}
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+ Py_DECREF(__pyx_3); __pyx_3 = 0;
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+ Py_DECREF(__pyx_5); __pyx_5 = 0;
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+ __pyx_1 = PyInt_FromLong(1); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 94; goto __pyx_L1;}
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+ Py_DECREF(__pyx_1); __pyx_1 = 0;
+ __pyx_6 = PyInt_AsUnsignedLongMask(__pyx_2); if (PyErr_Occurred()) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 94; goto __pyx_L1;}
+ Py_DECREF(__pyx_2); __pyx_2 = 0;
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+
+ /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":95 */
+ __pyx_3 = PyInt_FromLong(0); if (!__pyx_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 95; goto __pyx_L1;}
+ __pyx_5 = PyObject_GetItem(__pyx_v_key, __pyx_3); if (!__pyx_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 95; goto __pyx_L1;}
+ Py_DECREF(__pyx_3); __pyx_3 = 0;
+ __pyx_6 = PyInt_AsUnsignedLongMask(__pyx_5); if (PyErr_Occurred()) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 95; goto __pyx_L1;}
+ Py_DECREF(__pyx_5); __pyx_5 = 0;
+ (__pyx_v_k[0]) = __pyx_6;
+
+ /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":95 */
+ __pyx_1 = PyInt_FromLong(1); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 95; goto __pyx_L1;}
+ __pyx_2 = PyObject_GetItem(__pyx_v_key, __pyx_1); if (!__pyx_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 95; goto __pyx_L1;}
+ Py_DECREF(__pyx_1); __pyx_1 = 0;
+ __pyx_6 = PyInt_AsUnsignedLongMask(__pyx_2); if (PyErr_Occurred()) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 95; goto __pyx_L1;}
+ Py_DECREF(__pyx_2); __pyx_2 = 0;
+ (__pyx_v_k[1]) = __pyx_6;
+
+ /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":95 */
+ __pyx_3 = PyInt_FromLong(2); if (!__pyx_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 95; goto __pyx_L1;}
+ __pyx_5 = PyObject_GetItem(__pyx_v_key, __pyx_3); if (!__pyx_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 95; goto __pyx_L1;}
+ Py_DECREF(__pyx_3); __pyx_3 = 0;
+ __pyx_6 = PyInt_AsUnsignedLongMask(__pyx_5); if (PyErr_Occurred()) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 95; goto __pyx_L1;}
+ Py_DECREF(__pyx_5); __pyx_5 = 0;
+ (__pyx_v_k[2]) = __pyx_6;
+
+ /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":95 */
+ __pyx_1 = PyInt_FromLong(3); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 95; goto __pyx_L1;}
+ __pyx_2 = PyObject_GetItem(__pyx_v_key, __pyx_1); if (!__pyx_2) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 95; goto __pyx_L1;}
+ Py_DECREF(__pyx_1); __pyx_1 = 0;
+ __pyx_6 = PyInt_AsUnsignedLongMask(__pyx_2); if (PyErr_Occurred()) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 95; goto __pyx_L1;}
+ Py_DECREF(__pyx_2); __pyx_2 = 0;
+ (__pyx_v_k[3]) = __pyx_6;
+
+ /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":96 */
+ __pyx_v_rc = xxtea_decipher(__pyx_v_v,__pyx_v_k,__pyx_v_rounds);
+
+ /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":97 */
+ __pyx_3 = PyLong_FromUnsignedLong((__pyx_v_v[0])); if (!__pyx_3) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 97; goto __pyx_L1;}
+ __pyx_5 = PyLong_FromUnsignedLong((__pyx_v_v[1])); if (!__pyx_5) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 97; goto __pyx_L1;}
+ __pyx_1 = PyList_New(2); if (!__pyx_1) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 97; goto __pyx_L1;}
+ PyList_SET_ITEM(__pyx_1, 0, __pyx_3);
+ PyList_SET_ITEM(__pyx_1, 1, __pyx_5);
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+ __pyx_5 = 0;
+ Py_DECREF(__pyx_v_result);
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+ __pyx_1 = 0;
+
+ /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":98 */
+ Py_INCREF(__pyx_v_result);
+ __pyx_r = __pyx_v_result;
+ goto __pyx_L0;
+
+ __pyx_r = Py_None; Py_INCREF(Py_None);
+ goto __pyx_L0;
+ __pyx_L1:;
+ Py_XDECREF(__pyx_1);
+ Py_XDECREF(__pyx_2);
+ Py_XDECREF(__pyx_3);
+ Py_XDECREF(__pyx_5);
+ __Pyx_AddTraceback("_xtea.XXX_c_xxtea_decrypt");
+ __pyx_r = 0;
+ __pyx_L0:;
+ Py_DECREF(__pyx_v_result);
+ Py_DECREF(__pyx_v_block);
+ Py_DECREF(__pyx_v_key);
+ return __pyx_r;
+}
+
static __Pyx_InternTabEntry __pyx_intern_tab[] = {
- {&__pyx_n__c_xtea_encryptQuad, "_c_xtea_encryptQuad"},
+ {&__pyx_n_ValueError, "ValueError"},
+ {&__pyx_n_XXX_c_xxtea_decrypt, "XXX_c_xxtea_decrypt"},
+ {&__pyx_n_XXX_c_xxtea_encrypt, "XXX_c_xxtea_encrypt"},
+ {&__pyx_n__c_xtea_decrypt, "_c_xtea_decrypt"},
+ {&__pyx_n__c_xtea_encrypt, "_c_xtea_encrypt"},
{&__pyx_n__c_xxtea_decrypt, "_c_xxtea_decrypt"},
- {&__pyx_n__c_xxtea_decryptQuad, "_c_xxtea_decryptQuad"},
{&__pyx_n__c_xxtea_encrypt, "_c_xxtea_encrypt"},
{&__pyx_n_append, "append"},
{&__pyx_n_len, "len"},
{0, 0}
};
+static __Pyx_StringTabEntry __pyx_string_tab[] = {
+ {&__pyx_k1p, __pyx_k1, sizeof(__pyx_k1)},
+ {&__pyx_k2p, __pyx_k2, sizeof(__pyx_k2)},
+ {&__pyx_k3p, __pyx_k3, sizeof(__pyx_k3)},
+ {&__pyx_k4p, __pyx_k4, sizeof(__pyx_k4)},
+ {0, 0, 0}
+};
+
static struct PyMethodDef __pyx_methods[] = {
- {"_c_xtea_encryptQuad", (PyCFunction)__pyx_f_5_xtea__c_xtea_encryptQuad, METH_VARARGS|METH_KEYWORDS, 0},
- {"_c_xxtea_decryptQuad", (PyCFunction)__pyx_f_5_xtea__c_xxtea_decryptQuad, METH_VARARGS|METH_KEYWORDS, 0},
+ {"_c_xtea_encrypt", (PyCFunction)__pyx_f_5_xtea__c_xtea_encrypt, METH_VARARGS|METH_KEYWORDS, 0},
+ {"_c_xtea_decrypt", (PyCFunction)__pyx_f_5_xtea__c_xtea_decrypt, METH_VARARGS|METH_KEYWORDS, 0},
{"_c_xxtea_encrypt", (PyCFunction)__pyx_f_5_xtea__c_xxtea_encrypt, METH_VARARGS|METH_KEYWORDS, 0},
{"_c_xxtea_decrypt", (PyCFunction)__pyx_f_5_xtea__c_xxtea_decrypt, METH_VARARGS|METH_KEYWORDS, 0},
+ {"XXX_c_xxtea_encrypt", (PyCFunction)__pyx_f_5_xtea_XXX_c_xxtea_encrypt, METH_VARARGS|METH_KEYWORDS, 0},
+ {"XXX_c_xxtea_decrypt", (PyCFunction)__pyx_f_5_xtea_XXX_c_xxtea_decrypt, METH_VARARGS|METH_KEYWORDS, 0},
{0, 0, 0, 0}
};
@@ -554,8 +925,9 @@
if (!__pyx_b) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 7; goto __pyx_L1;};
if (PyObject_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 7; goto __pyx_L1;};
if (__Pyx_InternStrings(__pyx_intern_tab) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 7; goto __pyx_L1;};
+ if (__Pyx_InitStrings(__pyx_string_tab) < 0) {__pyx_filename = __pyx_f[0]; __pyx_lineno = 7; goto __pyx_L1;};
- /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":56 */
+ /* "/home/heimes/dev/pymoul/xtea/src/xtea/_xtea.pyx":88 */
return;
__pyx_L1:;
__Pyx_AddTraceback("_xtea");
@@ -579,6 +951,64 @@
return result;
}
+static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb) {
+ Py_XINCREF(type);
+ Py_XINCREF(value);
+ Py_XINCREF(tb);
+ /* First, check the traceback argument, replacing None with NULL. */
+ if (tb == Py_None) {
+ Py_DECREF(tb);
+ tb = 0;
+ }
+ else if (tb != NULL && !PyTraceBack_Check(tb)) {
+ PyErr_SetString(PyExc_TypeError,
+ "raise: arg 3 must be a traceback or None");
+ goto raise_error;
+ }
+ /* Next, replace a missing value with None */
+ if (value == NULL) {
+ value = Py_None;
+ Py_INCREF(value);
+ }
+ /* Next, repeatedly, replace a tuple exception with its first item */
+ while (PyTuple_Check(type) && PyTuple_Size(type) > 0) {
+ PyObject *tmp = type;
+ type = PyTuple_GET_ITEM(type, 0);
+ Py_INCREF(type);
+ Py_DECREF(tmp);
+ }
+ if (PyString_Check(type)) {
+ if (PyErr_Warn(PyExc_DeprecationWarning,
+ "raising a string exception is deprecated"))
+ goto raise_error;
+ }
+ else if (PyType_Check(type) || PyClass_Check(type))
+ ; /*PyErr_NormalizeException(&type, &value, &tb);*/
+ else {
+ /* Raising an instance. The value should be a dummy. */
+ if (value != Py_None) {
+ PyErr_SetString(PyExc_TypeError,
+ "instance exception may not have a separate value");
+ goto raise_error;
+ }
+ /* Normalize to raise <class>, <instance> */
+ Py_DECREF(value);
+ value = type;
+ if (PyInstance_Check(type))
+ type = (PyObject*) ((PyInstanceObject*)type)->in_class;
+ else
+ type = (PyObject*) type->ob_type;
+ Py_INCREF(type);
+ }
+ PyErr_Restore(type, value, tb);
+ return;
+raise_error:
+ Py_XDECREF(value);
+ Py_XDECREF(type);
+ Py_XDECREF(tb);
+ return;
+}
+
static int __Pyx_InternStrings(__Pyx_InternTabEntry *t) {
while (t->p) {
*t->p = PyString_InternFromString(t->s);
@@ -589,6 +1019,16 @@
return 0;
}
+static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
+ while (t->p) {
+ *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
+ if (!*t->p)
+ return -1;
+ ++t;
+ }
+ return 0;
+}
+
#include "compile.h"
#include "frameobject.h"
#include "traceback.h"
Modified: xtea/trunk/src/xtea/_xtea.pyx
===================================================================
--- xtea/trunk/src/xtea/_xtea.pyx 2007-03-02 14:54:09 UTC (rev 223)
+++ xtea/trunk/src/xtea/_xtea.pyx 2007-03-02 16:28:11 UTC (rev 224)
@@ -19,21 +19,21 @@
int xxtea_decipher(ULong *v, ULong *k, UInt n)
int xxtea_encipher(ULong *v, ULong *k, UInt n)
-def _c_xtea_encryptQuad(ULong v0, ULong v1, object key, UInt rounds):
+def _c_xtea_encrypt(object block, object key, UInt rounds):
cdef ULong v[2]
cdef ULong k[4]
- v[0] = v0; v[1] = v1
+ v[0] = block[0]; v[1] = block[1]
k[0] = key[0]; k[1] = key[1]; k[2] = key[2]; k[3] = key[3]
rc = xtea_encipher(v, k, rounds)
result = [v[0], v[1]]
return result
-def _c_xxtea_decryptQuad(ULong v0, ULong v1, object key, UInt rounds):
+def _c_xtea_decrypt(object block, object key, UInt rounds):
cdef ULong v[2]
cdef ULong k[4]
- v[0] = v0; v[1] = v1
+ v[0] = block[0]; v[1] = block[1]
k[0] = key[0]; k[1] = key[1]; k[2] = key[2]; k[3] = key[3]
- rc = xxtea_decipher(v, k, rounds)
+ rc = xtea_decipher(v, k, rounds)
result = [v[0], v[1]]
return result
@@ -41,12 +41,14 @@
cdef ULong k[4], *v
cdef int rc, size, vsize, i
size = len(block)
+ if size != rounds:
+ raise ValueError, "len(block) %i != rounds %i" % (size, rounds)
vsize = sizeof(ULong) * size
v = <ULong *>malloc(vsize)
for i from 0 <= i < size:
v[i] = block[i]
k[0] = key[0]; k[1] = key[1]; k[2] = key[2]; k[3] = key[3]
- rc = xtea_encipher(v, k, rounds)
+ rc = xxtea_encipher(v, k, rounds)
result = []
for i from 0 <= i < size:
result.append(v[i])
@@ -57,14 +59,40 @@
cdef ULong k[4], *v
cdef int rc, size, vsize, i
size = len(block)
+ if size != rounds:
+ raise ValueError, "len(block) %i != rounds %i" % (size, rounds)
vsize = sizeof(U...
[truncated message content] |
