diff options
| author | orivej <[email protected]> | 2022-02-10 16:44:49 +0300 |
|---|---|---|
| committer | Daniil Cherednik <[email protected]> | 2022-02-10 16:44:49 +0300 |
| commit | 718c552901d703c502ccbefdfc3c9028d608b947 (patch) | |
| tree | 46534a98bbefcd7b1f3faa5b52c138ab27db75b7 /contrib/tools/python3/src/Modules/sha1module.c | |
| parent | e9656aae26e0358d5378e5b63dcac5c8dbe0e4d0 (diff) | |
Restoring authorship annotation for <[email protected]>. Commit 1 of 2.
Diffstat (limited to 'contrib/tools/python3/src/Modules/sha1module.c')
| -rw-r--r-- | contrib/tools/python3/src/Modules/sha1module.c | 1098 |
1 files changed, 549 insertions, 549 deletions
diff --git a/contrib/tools/python3/src/Modules/sha1module.c b/contrib/tools/python3/src/Modules/sha1module.c index 44fe8ef7b35..e809b14d314 100644 --- a/contrib/tools/python3/src/Modules/sha1module.c +++ b/contrib/tools/python3/src/Modules/sha1module.c @@ -1,562 +1,562 @@ -/* SHA1 module */ - -/* This module provides an interface to the SHA1 algorithm */ - -/* See below for information about the original code this module was - based upon. Additional work performed by: - - Andrew Kuchling ([email protected]) - Greg Stein ([email protected]) - Trevor Perrin ([email protected]) - - Copyright (C) 2005-2007 Gregory P. Smith ([email protected]) - Licensed to PSF under a Contributor Agreement. - -*/ - -/* SHA1 objects */ - -#include "Python.h" -#include "hashlib.h" -#include "pystrhex.h" - -/*[clinic input] -module _sha1 -class SHA1Type "SHA1object *" "&PyType_Type" -[clinic start generated code]*/ -/*[clinic end generated code: output=da39a3ee5e6b4b0d input=3dc9a20d1becb759]*/ - -/* Some useful types */ - -#if SIZEOF_INT == 4 -typedef unsigned int SHA1_INT32; /* 32-bit integer */ -typedef long long SHA1_INT64; /* 64-bit integer */ -#else -/* not defined. compilation will die. */ -#endif - -/* The SHA1 block size and message digest sizes, in bytes */ - -#define SHA1_BLOCKSIZE 64 -#define SHA1_DIGESTSIZE 20 - -/* The structure for storing SHA1 info */ - -struct sha1_state { - SHA1_INT64 length; - SHA1_INT32 state[5], curlen; - unsigned char buf[SHA1_BLOCKSIZE]; -}; - -typedef struct { - PyObject_HEAD - - struct sha1_state hash_state; -} SHA1object; - -#include "clinic/sha1module.c.h" - -/* ------------------------------------------------------------------------ - * - * This code for the SHA1 algorithm was noted as public domain. The - * original headers are pasted below. - * - * Several changes have been made to make it more compatible with the - * Python environment and desired interface. - * - */ - -/* LibTomCrypt, modular cryptographic library -- Tom St Denis - * - * LibTomCrypt is a library that provides various cryptographic - * algorithms in a highly modular and flexible manner. - * - * The library is free for all purposes without any express - * guarantee it works. - * +/* SHA1 module */ + +/* This module provides an interface to the SHA1 algorithm */ + +/* See below for information about the original code this module was + based upon. Additional work performed by: + + Andrew Kuchling ([email protected]) + Greg Stein ([email protected]) + Trevor Perrin ([email protected]) + + Copyright (C) 2005-2007 Gregory P. Smith ([email protected]) + Licensed to PSF under a Contributor Agreement. + +*/ + +/* SHA1 objects */ + +#include "Python.h" +#include "hashlib.h" +#include "pystrhex.h" + +/*[clinic input] +module _sha1 +class SHA1Type "SHA1object *" "&PyType_Type" +[clinic start generated code]*/ +/*[clinic end generated code: output=da39a3ee5e6b4b0d input=3dc9a20d1becb759]*/ + +/* Some useful types */ + +#if SIZEOF_INT == 4 +typedef unsigned int SHA1_INT32; /* 32-bit integer */ +typedef long long SHA1_INT64; /* 64-bit integer */ +#else +/* not defined. compilation will die. */ +#endif + +/* The SHA1 block size and message digest sizes, in bytes */ + +#define SHA1_BLOCKSIZE 64 +#define SHA1_DIGESTSIZE 20 + +/* The structure for storing SHA1 info */ + +struct sha1_state { + SHA1_INT64 length; + SHA1_INT32 state[5], curlen; + unsigned char buf[SHA1_BLOCKSIZE]; +}; + +typedef struct { + PyObject_HEAD + + struct sha1_state hash_state; +} SHA1object; + +#include "clinic/sha1module.c.h" + +/* ------------------------------------------------------------------------ + * + * This code for the SHA1 algorithm was noted as public domain. The + * original headers are pasted below. + * + * Several changes have been made to make it more compatible with the + * Python environment and desired interface. + * + */ + +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * * Tom St Denis, [email protected], https://www.libtom.net - */ - -/* rotate the hard way (platform optimizations could be done) */ -#define ROL(x, y) ( (((unsigned long)(x)<<(unsigned long)((y)&31)) | (((unsigned long)(x)&0xFFFFFFFFUL)>>(unsigned long)(32-((y)&31)))) & 0xFFFFFFFFUL) -#define ROLc(x, y) ( (((unsigned long)(x)<<(unsigned long)((y)&31)) | (((unsigned long)(x)&0xFFFFFFFFUL)>>(unsigned long)(32-((y)&31)))) & 0xFFFFFFFFUL) - -/* Endian Neutral macros that work on all platforms */ - -#define STORE32H(x, y) \ - { (y)[0] = (unsigned char)(((x)>>24)&255); (y)[1] = (unsigned char)(((x)>>16)&255); \ - (y)[2] = (unsigned char)(((x)>>8)&255); (y)[3] = (unsigned char)((x)&255); } - -#define LOAD32H(x, y) \ - { x = ((unsigned long)((y)[0] & 255)<<24) | \ - ((unsigned long)((y)[1] & 255)<<16) | \ - ((unsigned long)((y)[2] & 255)<<8) | \ - ((unsigned long)((y)[3] & 255)); } - -#define STORE64H(x, y) \ - { (y)[0] = (unsigned char)(((x)>>56)&255); (y)[1] = (unsigned char)(((x)>>48)&255); \ - (y)[2] = (unsigned char)(((x)>>40)&255); (y)[3] = (unsigned char)(((x)>>32)&255); \ - (y)[4] = (unsigned char)(((x)>>24)&255); (y)[5] = (unsigned char)(((x)>>16)&255); \ - (y)[6] = (unsigned char)(((x)>>8)&255); (y)[7] = (unsigned char)((x)&255); } - - -/* SHA1 macros */ - -#define F0(x,y,z) (z ^ (x & (y ^ z))) -#define F1(x,y,z) (x ^ y ^ z) -#define F2(x,y,z) ((x & y) | (z & (x | y))) -#define F3(x,y,z) (x ^ y ^ z) - -static void sha1_compress(struct sha1_state *sha1, unsigned char *buf) -{ - SHA1_INT32 a,b,c,d,e,W[80],i; - - /* copy the state into 512-bits into W[0..15] */ - for (i = 0; i < 16; i++) { - LOAD32H(W[i], buf + (4*i)); - } - - /* copy state */ - a = sha1->state[0]; - b = sha1->state[1]; - c = sha1->state[2]; - d = sha1->state[3]; - e = sha1->state[4]; - - /* expand it */ - for (i = 16; i < 80; i++) { - W[i] = ROL(W[i-3] ^ W[i-8] ^ W[i-14] ^ W[i-16], 1); - } - - /* compress */ - /* round one */ - #define FF_0(a,b,c,d,e,i) e = (ROLc(a, 5) + F0(b,c,d) + e + W[i] + 0x5a827999UL); b = ROLc(b, 30); - #define FF_1(a,b,c,d,e,i) e = (ROLc(a, 5) + F1(b,c,d) + e + W[i] + 0x6ed9eba1UL); b = ROLc(b, 30); - #define FF_2(a,b,c,d,e,i) e = (ROLc(a, 5) + F2(b,c,d) + e + W[i] + 0x8f1bbcdcUL); b = ROLc(b, 30); - #define FF_3(a,b,c,d,e,i) e = (ROLc(a, 5) + F3(b,c,d) + e + W[i] + 0xca62c1d6UL); b = ROLc(b, 30); - - for (i = 0; i < 20; ) { - FF_0(a,b,c,d,e,i++); - FF_0(e,a,b,c,d,i++); - FF_0(d,e,a,b,c,i++); - FF_0(c,d,e,a,b,i++); - FF_0(b,c,d,e,a,i++); - } - - /* round two */ - for (; i < 40; ) { - FF_1(a,b,c,d,e,i++); - FF_1(e,a,b,c,d,i++); - FF_1(d,e,a,b,c,i++); - FF_1(c,d,e,a,b,i++); - FF_1(b,c,d,e,a,i++); - } - - /* round three */ - for (; i < 60; ) { - FF_2(a,b,c,d,e,i++); - FF_2(e,a,b,c,d,i++); - FF_2(d,e,a,b,c,i++); - FF_2(c,d,e,a,b,i++); - FF_2(b,c,d,e,a,i++); - } - - /* round four */ - for (; i < 80; ) { - FF_3(a,b,c,d,e,i++); - FF_3(e,a,b,c,d,i++); - FF_3(d,e,a,b,c,i++); - FF_3(c,d,e,a,b,i++); - FF_3(b,c,d,e,a,i++); - } - - #undef FF_0 - #undef FF_1 - #undef FF_2 - #undef FF_3 - - /* store */ - sha1->state[0] = sha1->state[0] + a; - sha1->state[1] = sha1->state[1] + b; - sha1->state[2] = sha1->state[2] + c; - sha1->state[3] = sha1->state[3] + d; - sha1->state[4] = sha1->state[4] + e; -} - -/** - Initialize the hash state - @param sha1 The hash state you wish to initialize -*/ -static void -sha1_init(struct sha1_state *sha1) -{ - assert(sha1 != NULL); - sha1->state[0] = 0x67452301UL; - sha1->state[1] = 0xefcdab89UL; - sha1->state[2] = 0x98badcfeUL; - sha1->state[3] = 0x10325476UL; - sha1->state[4] = 0xc3d2e1f0UL; - sha1->curlen = 0; - sha1->length = 0; -} - -/** - Process a block of memory though the hash - @param sha1 The hash state - @param in The data to hash - @param inlen The length of the data (octets) -*/ -static void -sha1_process(struct sha1_state *sha1, - const unsigned char *in, Py_ssize_t inlen) -{ - Py_ssize_t n; - - assert(sha1 != NULL); - assert(in != NULL); - assert(sha1->curlen <= sizeof(sha1->buf)); - - while (inlen > 0) { - if (sha1->curlen == 0 && inlen >= SHA1_BLOCKSIZE) { - sha1_compress(sha1, (unsigned char *)in); - sha1->length += SHA1_BLOCKSIZE * 8; - in += SHA1_BLOCKSIZE; - inlen -= SHA1_BLOCKSIZE; - } else { - n = Py_MIN(inlen, (Py_ssize_t)(SHA1_BLOCKSIZE - sha1->curlen)); - memcpy(sha1->buf + sha1->curlen, in, (size_t)n); - sha1->curlen += (SHA1_INT32)n; - in += n; - inlen -= n; - if (sha1->curlen == SHA1_BLOCKSIZE) { - sha1_compress(sha1, sha1->buf); - sha1->length += 8*SHA1_BLOCKSIZE; - sha1->curlen = 0; - } - } - } -} - -/** - Terminate the hash to get the digest - @param sha1 The hash state - @param out [out] The destination of the hash (20 bytes) -*/ -static void -sha1_done(struct sha1_state *sha1, unsigned char *out) -{ - int i; - - assert(sha1 != NULL); - assert(out != NULL); - assert(sha1->curlen < sizeof(sha1->buf)); - - /* increase the length of the message */ - sha1->length += sha1->curlen * 8; - - /* append the '1' bit */ - sha1->buf[sha1->curlen++] = (unsigned char)0x80; - - /* if the length is currently above 56 bytes we append zeros - * then compress. Then we can fall back to padding zeros and length - * encoding like normal. - */ - if (sha1->curlen > 56) { - while (sha1->curlen < 64) { - sha1->buf[sha1->curlen++] = (unsigned char)0; - } - sha1_compress(sha1, sha1->buf); - sha1->curlen = 0; - } - + */ + +/* rotate the hard way (platform optimizations could be done) */ +#define ROL(x, y) ( (((unsigned long)(x)<<(unsigned long)((y)&31)) | (((unsigned long)(x)&0xFFFFFFFFUL)>>(unsigned long)(32-((y)&31)))) & 0xFFFFFFFFUL) +#define ROLc(x, y) ( (((unsigned long)(x)<<(unsigned long)((y)&31)) | (((unsigned long)(x)&0xFFFFFFFFUL)>>(unsigned long)(32-((y)&31)))) & 0xFFFFFFFFUL) + +/* Endian Neutral macros that work on all platforms */ + +#define STORE32H(x, y) \ + { (y)[0] = (unsigned char)(((x)>>24)&255); (y)[1] = (unsigned char)(((x)>>16)&255); \ + (y)[2] = (unsigned char)(((x)>>8)&255); (y)[3] = (unsigned char)((x)&255); } + +#define LOAD32H(x, y) \ + { x = ((unsigned long)((y)[0] & 255)<<24) | \ + ((unsigned long)((y)[1] & 255)<<16) | \ + ((unsigned long)((y)[2] & 255)<<8) | \ + ((unsigned long)((y)[3] & 255)); } + +#define STORE64H(x, y) \ + { (y)[0] = (unsigned char)(((x)>>56)&255); (y)[1] = (unsigned char)(((x)>>48)&255); \ + (y)[2] = (unsigned char)(((x)>>40)&255); (y)[3] = (unsigned char)(((x)>>32)&255); \ + (y)[4] = (unsigned char)(((x)>>24)&255); (y)[5] = (unsigned char)(((x)>>16)&255); \ + (y)[6] = (unsigned char)(((x)>>8)&255); (y)[7] = (unsigned char)((x)&255); } + + +/* SHA1 macros */ + +#define F0(x,y,z) (z ^ (x & (y ^ z))) +#define F1(x,y,z) (x ^ y ^ z) +#define F2(x,y,z) ((x & y) | (z & (x | y))) +#define F3(x,y,z) (x ^ y ^ z) + +static void sha1_compress(struct sha1_state *sha1, unsigned char *buf) +{ + SHA1_INT32 a,b,c,d,e,W[80],i; + + /* copy the state into 512-bits into W[0..15] */ + for (i = 0; i < 16; i++) { + LOAD32H(W[i], buf + (4*i)); + } + + /* copy state */ + a = sha1->state[0]; + b = sha1->state[1]; + c = sha1->state[2]; + d = sha1->state[3]; + e = sha1->state[4]; + + /* expand it */ + for (i = 16; i < 80; i++) { + W[i] = ROL(W[i-3] ^ W[i-8] ^ W[i-14] ^ W[i-16], 1); + } + + /* compress */ + /* round one */ + #define FF_0(a,b,c,d,e,i) e = (ROLc(a, 5) + F0(b,c,d) + e + W[i] + 0x5a827999UL); b = ROLc(b, 30); + #define FF_1(a,b,c,d,e,i) e = (ROLc(a, 5) + F1(b,c,d) + e + W[i] + 0x6ed9eba1UL); b = ROLc(b, 30); + #define FF_2(a,b,c,d,e,i) e = (ROLc(a, 5) + F2(b,c,d) + e + W[i] + 0x8f1bbcdcUL); b = ROLc(b, 30); + #define FF_3(a,b,c,d,e,i) e = (ROLc(a, 5) + F3(b,c,d) + e + W[i] + 0xca62c1d6UL); b = ROLc(b, 30); + + for (i = 0; i < 20; ) { + FF_0(a,b,c,d,e,i++); + FF_0(e,a,b,c,d,i++); + FF_0(d,e,a,b,c,i++); + FF_0(c,d,e,a,b,i++); + FF_0(b,c,d,e,a,i++); + } + + /* round two */ + for (; i < 40; ) { + FF_1(a,b,c,d,e,i++); + FF_1(e,a,b,c,d,i++); + FF_1(d,e,a,b,c,i++); + FF_1(c,d,e,a,b,i++); + FF_1(b,c,d,e,a,i++); + } + + /* round three */ + for (; i < 60; ) { + FF_2(a,b,c,d,e,i++); + FF_2(e,a,b,c,d,i++); + FF_2(d,e,a,b,c,i++); + FF_2(c,d,e,a,b,i++); + FF_2(b,c,d,e,a,i++); + } + + /* round four */ + for (; i < 80; ) { + FF_3(a,b,c,d,e,i++); + FF_3(e,a,b,c,d,i++); + FF_3(d,e,a,b,c,i++); + FF_3(c,d,e,a,b,i++); + FF_3(b,c,d,e,a,i++); + } + + #undef FF_0 + #undef FF_1 + #undef FF_2 + #undef FF_3 + + /* store */ + sha1->state[0] = sha1->state[0] + a; + sha1->state[1] = sha1->state[1] + b; + sha1->state[2] = sha1->state[2] + c; + sha1->state[3] = sha1->state[3] + d; + sha1->state[4] = sha1->state[4] + e; +} + +/** + Initialize the hash state + @param sha1 The hash state you wish to initialize +*/ +static void +sha1_init(struct sha1_state *sha1) +{ + assert(sha1 != NULL); + sha1->state[0] = 0x67452301UL; + sha1->state[1] = 0xefcdab89UL; + sha1->state[2] = 0x98badcfeUL; + sha1->state[3] = 0x10325476UL; + sha1->state[4] = 0xc3d2e1f0UL; + sha1->curlen = 0; + sha1->length = 0; +} + +/** + Process a block of memory though the hash + @param sha1 The hash state + @param in The data to hash + @param inlen The length of the data (octets) +*/ +static void +sha1_process(struct sha1_state *sha1, + const unsigned char *in, Py_ssize_t inlen) +{ + Py_ssize_t n; + + assert(sha1 != NULL); + assert(in != NULL); + assert(sha1->curlen <= sizeof(sha1->buf)); + + while (inlen > 0) { + if (sha1->curlen == 0 && inlen >= SHA1_BLOCKSIZE) { + sha1_compress(sha1, (unsigned char *)in); + sha1->length += SHA1_BLOCKSIZE * 8; + in += SHA1_BLOCKSIZE; + inlen -= SHA1_BLOCKSIZE; + } else { + n = Py_MIN(inlen, (Py_ssize_t)(SHA1_BLOCKSIZE - sha1->curlen)); + memcpy(sha1->buf + sha1->curlen, in, (size_t)n); + sha1->curlen += (SHA1_INT32)n; + in += n; + inlen -= n; + if (sha1->curlen == SHA1_BLOCKSIZE) { + sha1_compress(sha1, sha1->buf); + sha1->length += 8*SHA1_BLOCKSIZE; + sha1->curlen = 0; + } + } + } +} + +/** + Terminate the hash to get the digest + @param sha1 The hash state + @param out [out] The destination of the hash (20 bytes) +*/ +static void +sha1_done(struct sha1_state *sha1, unsigned char *out) +{ + int i; + + assert(sha1 != NULL); + assert(out != NULL); + assert(sha1->curlen < sizeof(sha1->buf)); + + /* increase the length of the message */ + sha1->length += sha1->curlen * 8; + + /* append the '1' bit */ + sha1->buf[sha1->curlen++] = (unsigned char)0x80; + + /* if the length is currently above 56 bytes we append zeros + * then compress. Then we can fall back to padding zeros and length + * encoding like normal. + */ + if (sha1->curlen > 56) { + while (sha1->curlen < 64) { + sha1->buf[sha1->curlen++] = (unsigned char)0; + } + sha1_compress(sha1, sha1->buf); + sha1->curlen = 0; + } + /* pad up to 56 bytes of zeroes */ - while (sha1->curlen < 56) { - sha1->buf[sha1->curlen++] = (unsigned char)0; - } - - /* store length */ - STORE64H(sha1->length, sha1->buf+56); - sha1_compress(sha1, sha1->buf); - - /* copy output */ - for (i = 0; i < 5; i++) { - STORE32H(sha1->state[i], out+(4*i)); - } -} - - -/* .Source: /cvs/libtom/libtomcrypt/src/hashes/sha1.c,v $ */ -/* .Revision: 1.10 $ */ -/* .Date: 2007/05/12 14:25:28 $ */ - -/* - * End of copied SHA1 code. - * - * ------------------------------------------------------------------------ - */ - -static PyTypeObject SHA1type; - - -static SHA1object * -newSHA1object(void) -{ - return (SHA1object *)PyObject_New(SHA1object, &SHA1type); -} - - -/* Internal methods for a hash object */ - -static void -SHA1_dealloc(PyObject *ptr) -{ - PyObject_Del(ptr); -} - - -/* External methods for a hash object */ - -/*[clinic input] -SHA1Type.copy - -Return a copy of the hash object. -[clinic start generated code]*/ - -static PyObject * -SHA1Type_copy_impl(SHA1object *self) -/*[clinic end generated code: output=b4e001264620f02a input=b7eae10df6f89b36]*/ -{ - SHA1object *newobj; - - if ((newobj = newSHA1object()) == NULL) - return NULL; - - newobj->hash_state = self->hash_state; - return (PyObject *)newobj; -} - -/*[clinic input] -SHA1Type.digest - -Return the digest value as a bytes object. -[clinic start generated code]*/ - -static PyObject * -SHA1Type_digest_impl(SHA1object *self) -/*[clinic end generated code: output=2f05302a7aa2b5cb input=13824b35407444bd]*/ -{ - unsigned char digest[SHA1_DIGESTSIZE]; - struct sha1_state temp; - - temp = self->hash_state; - sha1_done(&temp, digest); - return PyBytes_FromStringAndSize((const char *)digest, SHA1_DIGESTSIZE); -} - -/*[clinic input] -SHA1Type.hexdigest - -Return the digest value as a string of hexadecimal digits. -[clinic start generated code]*/ - -static PyObject * -SHA1Type_hexdigest_impl(SHA1object *self) -/*[clinic end generated code: output=4161fd71e68c6659 input=97691055c0c74ab0]*/ -{ - unsigned char digest[SHA1_DIGESTSIZE]; - struct sha1_state temp; - - /* Get the raw (binary) digest value */ - temp = self->hash_state; - sha1_done(&temp, digest); - - return _Py_strhex((const char *)digest, SHA1_DIGESTSIZE); -} - -/*[clinic input] -SHA1Type.update - - obj: object - / - -Update this hash object's state with the provided string. -[clinic start generated code]*/ - -static PyObject * -SHA1Type_update(SHA1object *self, PyObject *obj) -/*[clinic end generated code: output=d9902f0e5015e9ae input=aad8e07812edbba3]*/ -{ - Py_buffer buf; - - GET_BUFFER_VIEW_OR_ERROUT(obj, &buf); - - sha1_process(&self->hash_state, buf.buf, buf.len); - - PyBuffer_Release(&buf); - Py_RETURN_NONE; -} - -static PyMethodDef SHA1_methods[] = { - SHA1TYPE_COPY_METHODDEF - SHA1TYPE_DIGEST_METHODDEF - SHA1TYPE_HEXDIGEST_METHODDEF - SHA1TYPE_UPDATE_METHODDEF - {NULL, NULL} /* sentinel */ -}; - -static PyObject * -SHA1_get_block_size(PyObject *self, void *closure) -{ - return PyLong_FromLong(SHA1_BLOCKSIZE); -} - -static PyObject * -SHA1_get_name(PyObject *self, void *closure) -{ - return PyUnicode_FromStringAndSize("sha1", 4); -} - -static PyObject * -sha1_get_digest_size(PyObject *self, void *closure) -{ - return PyLong_FromLong(SHA1_DIGESTSIZE); -} - - -static PyGetSetDef SHA1_getseters[] = { - {"block_size", - (getter)SHA1_get_block_size, NULL, - NULL, - NULL}, - {"name", - (getter)SHA1_get_name, NULL, - NULL, - NULL}, - {"digest_size", - (getter)sha1_get_digest_size, NULL, - NULL, - NULL}, - {NULL} /* Sentinel */ -}; - -static PyTypeObject SHA1type = { - PyVarObject_HEAD_INIT(NULL, 0) - "_sha1.sha1", /*tp_name*/ - sizeof(SHA1object), /*tp_basicsize*/ - 0, /*tp_itemsize*/ - /* methods */ - SHA1_dealloc, /*tp_dealloc*/ + while (sha1->curlen < 56) { + sha1->buf[sha1->curlen++] = (unsigned char)0; + } + + /* store length */ + STORE64H(sha1->length, sha1->buf+56); + sha1_compress(sha1, sha1->buf); + + /* copy output */ + for (i = 0; i < 5; i++) { + STORE32H(sha1->state[i], out+(4*i)); + } +} + + +/* .Source: /cvs/libtom/libtomcrypt/src/hashes/sha1.c,v $ */ +/* .Revision: 1.10 $ */ +/* .Date: 2007/05/12 14:25:28 $ */ + +/* + * End of copied SHA1 code. + * + * ------------------------------------------------------------------------ + */ + +static PyTypeObject SHA1type; + + +static SHA1object * +newSHA1object(void) +{ + return (SHA1object *)PyObject_New(SHA1object, &SHA1type); +} + + +/* Internal methods for a hash object */ + +static void +SHA1_dealloc(PyObject *ptr) +{ + PyObject_Del(ptr); +} + + +/* External methods for a hash object */ + +/*[clinic input] +SHA1Type.copy + +Return a copy of the hash object. +[clinic start generated code]*/ + +static PyObject * +SHA1Type_copy_impl(SHA1object *self) +/*[clinic end generated code: output=b4e001264620f02a input=b7eae10df6f89b36]*/ +{ + SHA1object *newobj; + + if ((newobj = newSHA1object()) == NULL) + return NULL; + + newobj->hash_state = self->hash_state; + return (PyObject *)newobj; +} + +/*[clinic input] +SHA1Type.digest + +Return the digest value as a bytes object. +[clinic start generated code]*/ + +static PyObject * +SHA1Type_digest_impl(SHA1object *self) +/*[clinic end generated code: output=2f05302a7aa2b5cb input=13824b35407444bd]*/ +{ + unsigned char digest[SHA1_DIGESTSIZE]; + struct sha1_state temp; + + temp = self->hash_state; + sha1_done(&temp, digest); + return PyBytes_FromStringAndSize((const char *)digest, SHA1_DIGESTSIZE); +} + +/*[clinic input] +SHA1Type.hexdigest + +Return the digest value as a string of hexadecimal digits. +[clinic start generated code]*/ + +static PyObject * +SHA1Type_hexdigest_impl(SHA1object *self) +/*[clinic end generated code: output=4161fd71e68c6659 input=97691055c0c74ab0]*/ +{ + unsigned char digest[SHA1_DIGESTSIZE]; + struct sha1_state temp; + + /* Get the raw (binary) digest value */ + temp = self->hash_state; + sha1_done(&temp, digest); + + return _Py_strhex((const char *)digest, SHA1_DIGESTSIZE); +} + +/*[clinic input] +SHA1Type.update + + obj: object + / + +Update this hash object's state with the provided string. +[clinic start generated code]*/ + +static PyObject * +SHA1Type_update(SHA1object *self, PyObject *obj) +/*[clinic end generated code: output=d9902f0e5015e9ae input=aad8e07812edbba3]*/ +{ + Py_buffer buf; + + GET_BUFFER_VIEW_OR_ERROUT(obj, &buf); + + sha1_process(&self->hash_state, buf.buf, buf.len); + + PyBuffer_Release(&buf); + Py_RETURN_NONE; +} + +static PyMethodDef SHA1_methods[] = { + SHA1TYPE_COPY_METHODDEF + SHA1TYPE_DIGEST_METHODDEF + SHA1TYPE_HEXDIGEST_METHODDEF + SHA1TYPE_UPDATE_METHODDEF + {NULL, NULL} /* sentinel */ +}; + +static PyObject * +SHA1_get_block_size(PyObject *self, void *closure) +{ + return PyLong_FromLong(SHA1_BLOCKSIZE); +} + +static PyObject * +SHA1_get_name(PyObject *self, void *closure) +{ + return PyUnicode_FromStringAndSize("sha1", 4); +} + +static PyObject * +sha1_get_digest_size(PyObject *self, void *closure) +{ + return PyLong_FromLong(SHA1_DIGESTSIZE); +} + + +static PyGetSetDef SHA1_getseters[] = { + {"block_size", + (getter)SHA1_get_block_size, NULL, + NULL, + NULL}, + {"name", + (getter)SHA1_get_name, NULL, + NULL, + NULL}, + {"digest_size", + (getter)sha1_get_digest_size, NULL, + NULL, + NULL}, + {NULL} /* Sentinel */ +}; + +static PyTypeObject SHA1type = { + PyVarObject_HEAD_INIT(NULL, 0) + "_sha1.sha1", /*tp_name*/ + sizeof(SHA1object), /*tp_basicsize*/ + 0, /*tp_itemsize*/ + /* methods */ + SHA1_dealloc, /*tp_dealloc*/ 0, /*tp_vectorcall_offset*/ - 0, /*tp_getattr*/ - 0, /*tp_setattr*/ + 0, /*tp_getattr*/ + 0, /*tp_setattr*/ 0, /*tp_as_async*/ - 0, /*tp_repr*/ - 0, /*tp_as_number*/ - 0, /*tp_as_sequence*/ - 0, /*tp_as_mapping*/ - 0, /*tp_hash*/ - 0, /*tp_call*/ - 0, /*tp_str*/ - 0, /*tp_getattro*/ - 0, /*tp_setattro*/ - 0, /*tp_as_buffer*/ - Py_TPFLAGS_DEFAULT, /*tp_flags*/ - 0, /*tp_doc*/ - 0, /*tp_traverse*/ - 0, /*tp_clear*/ - 0, /*tp_richcompare*/ - 0, /*tp_weaklistoffset*/ - 0, /*tp_iter*/ - 0, /*tp_iternext*/ - SHA1_methods, /* tp_methods */ - NULL, /* tp_members */ - SHA1_getseters, /* tp_getset */ -}; - - -/* The single module-level function: new() */ - -/*[clinic input] -_sha1.sha1 - - string: object(c_default="NULL") = b'' + 0, /*tp_repr*/ + 0, /*tp_as_number*/ + 0, /*tp_as_sequence*/ + 0, /*tp_as_mapping*/ + 0, /*tp_hash*/ + 0, /*tp_call*/ + 0, /*tp_str*/ + 0, /*tp_getattro*/ + 0, /*tp_setattro*/ + 0, /*tp_as_buffer*/ + Py_TPFLAGS_DEFAULT, /*tp_flags*/ + 0, /*tp_doc*/ + 0, /*tp_traverse*/ + 0, /*tp_clear*/ + 0, /*tp_richcompare*/ + 0, /*tp_weaklistoffset*/ + 0, /*tp_iter*/ + 0, /*tp_iternext*/ + SHA1_methods, /* tp_methods */ + NULL, /* tp_members */ + SHA1_getseters, /* tp_getset */ +}; + + +/* The single module-level function: new() */ + +/*[clinic input] +_sha1.sha1 + + string: object(c_default="NULL") = b'' * usedforsecurity: bool = True - -Return a new SHA1 hash object; optionally initialized with a string. -[clinic start generated code]*/ - -static PyObject * + +Return a new SHA1 hash object; optionally initialized with a string. +[clinic start generated code]*/ + +static PyObject * _sha1_sha1_impl(PyObject *module, PyObject *string, int usedforsecurity) /*[clinic end generated code: output=6f8b3af05126e18e input=bd54b68e2bf36a8a]*/ -{ - SHA1object *new; - Py_buffer buf; - - if (string) - GET_BUFFER_VIEW_OR_ERROUT(string, &buf); - - if ((new = newSHA1object()) == NULL) { - if (string) - PyBuffer_Release(&buf); - return NULL; - } - - sha1_init(&new->hash_state); - - if (PyErr_Occurred()) { - Py_DECREF(new); - if (string) - PyBuffer_Release(&buf); - return NULL; - } - if (string) { - sha1_process(&new->hash_state, buf.buf, buf.len); - PyBuffer_Release(&buf); - } - - return (PyObject *)new; -} - - -/* List of functions exported by this module */ - -static struct PyMethodDef SHA1_functions[] = { - _SHA1_SHA1_METHODDEF - {NULL, NULL} /* Sentinel */ -}; - - -/* Initialize this module. */ - -static struct PyModuleDef _sha1module = { - PyModuleDef_HEAD_INIT, - "_sha1", - NULL, - -1, - SHA1_functions, - NULL, - NULL, - NULL, - NULL -}; - -PyMODINIT_FUNC -PyInit__sha1(void) -{ - PyObject *m; - +{ + SHA1object *new; + Py_buffer buf; + + if (string) + GET_BUFFER_VIEW_OR_ERROUT(string, &buf); + + if ((new = newSHA1object()) == NULL) { + if (string) + PyBuffer_Release(&buf); + return NULL; + } + + sha1_init(&new->hash_state); + + if (PyErr_Occurred()) { + Py_DECREF(new); + if (string) + PyBuffer_Release(&buf); + return NULL; + } + if (string) { + sha1_process(&new->hash_state, buf.buf, buf.len); + PyBuffer_Release(&buf); + } + + return (PyObject *)new; +} + + +/* List of functions exported by this module */ + +static struct PyMethodDef SHA1_functions[] = { + _SHA1_SHA1_METHODDEF + {NULL, NULL} /* Sentinel */ +}; + + +/* Initialize this module. */ + +static struct PyModuleDef _sha1module = { + PyModuleDef_HEAD_INIT, + "_sha1", + NULL, + -1, + SHA1_functions, + NULL, + NULL, + NULL, + NULL +}; + +PyMODINIT_FUNC +PyInit__sha1(void) +{ + PyObject *m; + Py_SET_TYPE(&SHA1type, &PyType_Type); if (PyType_Ready(&SHA1type) < 0) { - return NULL; + return NULL; } - - m = PyModule_Create(&_sha1module); + + m = PyModule_Create(&_sha1module); if (m == NULL) { - return NULL; + return NULL; } - - Py_INCREF((PyObject *)&SHA1type); - PyModule_AddObject(m, "SHA1Type", (PyObject *)&SHA1type); - return m; -} + + Py_INCREF((PyObject *)&SHA1type); + PyModule_AddObject(m, "SHA1Type", (PyObject *)&SHA1type); + return m; +} |
