diff options
Diffstat (limited to 'Modules/_blake2/blake2s_impl.c')
| -rw-r--r-- | Modules/_blake2/blake2s_impl.c | 417 |
1 files changed, 0 insertions, 417 deletions
diff --git a/Modules/_blake2/blake2s_impl.c b/Modules/_blake2/blake2s_impl.c deleted file mode 100644 index 3014773..0000000 --- a/Modules/_blake2/blake2s_impl.c +++ /dev/null @@ -1,417 +0,0 @@ -/* - * Written in 2013 by Dmitry Chestnykh <dmitry@codingrobots.com> - * Modified for CPython by Christian Heimes <christian@python.org> - * - * To the extent possible under law, the author have dedicated all - * copyright and related and neighboring rights to this software to - * the public domain worldwide. This software is distributed without - * any warranty. http://creativecommons.org/publicdomain/zero/1.0/ - */ - -/* WARNING: autogenerated file! - * - * The blake2s_impl.c is autogenerated from blake2s_impl.c. - */ - -#ifndef Py_BUILD_CORE_BUILTIN -# define Py_BUILD_CORE_MODULE 1 -#endif - -#include <stdbool.h> -#include "Python.h" -#include "pycore_strhex.h" // _Py_strhex() - -#include "../hashlib.h" -#include "blake2module.h" - -#ifndef HAVE_LIBB2 -/* pure SSE2 implementation is very slow, so only use the more optimized SSSE3+ - * https://bugs.python.org/issue31834 */ -#if defined(__SSSE3__) || defined(__SSE4_1__) || defined(__AVX__) || defined(__XOP__) -#include "impl/blake2s.c" -#else -#include "impl/blake2s-ref.c" -#endif -#endif // !HAVE_LIBB2 - -#define HAVE_BLAKE2S 1 - -extern PyType_Spec blake2s_type_spec; - - -typedef struct { - PyObject_HEAD - blake2s_param param; - blake2s_state state; - bool use_mutex; - PyMutex mutex; -} BLAKE2sObject; - -#include "clinic/blake2s_impl.c.h" - -/*[clinic input] -module _blake2 -class _blake2.blake2s "BLAKE2sObject *" "&PyBlake2_BLAKE2sType" -[clinic start generated code]*/ -/*[clinic end generated code: output=da39a3ee5e6b4b0d input=4b79d7ffe07286ce]*/ - - -static BLAKE2sObject * -new_BLAKE2sObject(PyTypeObject *type) -{ - BLAKE2sObject *self; - self = (BLAKE2sObject *)type->tp_alloc(type, 0); - if (self == NULL) { - return NULL; - } - HASHLIB_INIT_MUTEX(self); - - return self; -} - -/*[clinic input] -@classmethod -_blake2.blake2s.__new__ as py_blake2s_new - data: object(c_default="NULL") = b'' - / - * - digest_size: int(c_default="BLAKE2S_OUTBYTES") = _blake2.blake2s.MAX_DIGEST_SIZE - key: Py_buffer(c_default="NULL", py_default="b''") = None - salt: Py_buffer(c_default="NULL", py_default="b''") = None - person: Py_buffer(c_default="NULL", py_default="b''") = None - fanout: int = 1 - depth: int = 1 - leaf_size: unsigned_long = 0 - node_offset: unsigned_long_long = 0 - node_depth: int = 0 - inner_size: int = 0 - last_node: bool = False - usedforsecurity: bool = True - -Return a new BLAKE2s hash object. -[clinic start generated code]*/ - -static PyObject * -py_blake2s_new_impl(PyTypeObject *type, PyObject *data, int digest_size, - Py_buffer *key, Py_buffer *salt, Py_buffer *person, - int fanout, int depth, unsigned long leaf_size, - unsigned long long node_offset, int node_depth, - int inner_size, int last_node, int usedforsecurity) -/*[clinic end generated code: output=556181f73905c686 input=4dda87723f23abb0]*/ -{ - BLAKE2sObject *self = NULL; - Py_buffer buf; - - self = new_BLAKE2sObject(type); - if (self == NULL) { - goto error; - } - - /* Zero parameter block. */ - memset(&self->param, 0, sizeof(self->param)); - - /* Set digest size. */ - if (digest_size <= 0 || digest_size > BLAKE2S_OUTBYTES) { - PyErr_Format(PyExc_ValueError, - "digest_size must be between 1 and %d bytes", - BLAKE2S_OUTBYTES); - goto error; - } - self->param.digest_length = digest_size; - - /* Set salt parameter. */ - if ((salt->obj != NULL) && salt->len) { - if (salt->len > BLAKE2S_SALTBYTES) { - PyErr_Format(PyExc_ValueError, - "maximum salt length is %d bytes", - BLAKE2S_SALTBYTES); - goto error; - } - memcpy(self->param.salt, salt->buf, salt->len); - } - - /* Set personalization parameter. */ - if ((person->obj != NULL) && person->len) { - if (person->len > BLAKE2S_PERSONALBYTES) { - PyErr_Format(PyExc_ValueError, - "maximum person length is %d bytes", - BLAKE2S_PERSONALBYTES); - goto error; - } - memcpy(self->param.personal, person->buf, person->len); - } - - /* Set tree parameters. */ - if (fanout < 0 || fanout > 255) { - PyErr_SetString(PyExc_ValueError, - "fanout must be between 0 and 255"); - goto error; - } - self->param.fanout = (uint8_t)fanout; - - if (depth <= 0 || depth > 255) { - PyErr_SetString(PyExc_ValueError, - "depth must be between 1 and 255"); - goto error; - } - self->param.depth = (uint8_t)depth; - - if (leaf_size > 0xFFFFFFFFU) { - PyErr_SetString(PyExc_OverflowError, "leaf_size is too large"); - goto error; - } - // NB: Simple assignment here would be incorrect on big endian platforms. - store32(&(self->param.leaf_length), leaf_size); - -#ifdef HAVE_BLAKE2S - if (node_offset > 0xFFFFFFFFFFFFULL) { - /* maximum 2**48 - 1 */ - PyErr_SetString(PyExc_OverflowError, "node_offset is too large"); - goto error; - } - store48(&(self->param.node_offset), node_offset); -#else - // NB: Simple assignment here would be incorrect on big endian platforms. - store64(&(self->param.node_offset), node_offset); -#endif - - if (node_depth < 0 || node_depth > 255) { - PyErr_SetString(PyExc_ValueError, - "node_depth must be between 0 and 255"); - goto error; - } - self->param.node_depth = node_depth; - - if (inner_size < 0 || inner_size > BLAKE2S_OUTBYTES) { - PyErr_Format(PyExc_ValueError, - "inner_size must be between 0 and is %d", - BLAKE2S_OUTBYTES); - goto error; - } - self->param.inner_length = inner_size; - - /* Set key length. */ - if ((key->obj != NULL) && key->len) { - if (key->len > BLAKE2S_KEYBYTES) { - PyErr_Format(PyExc_ValueError, - "maximum key length is %d bytes", - BLAKE2S_KEYBYTES); - goto error; - } - self->param.key_length = (uint8_t)key->len; - } - - /* Initialize hash state. */ - if (blake2s_init_param(&self->state, &self->param) < 0) { - PyErr_SetString(PyExc_RuntimeError, - "error initializing hash state"); - goto error; - } - - /* Set last node flag (must come after initialization). */ - self->state.last_node = last_node; - - /* Process key block if any. */ - if (self->param.key_length) { - uint8_t block[BLAKE2S_BLOCKBYTES]; - memset(block, 0, sizeof(block)); - memcpy(block, key->buf, key->len); - blake2s_update(&self->state, block, sizeof(block)); - secure_zero_memory(block, sizeof(block)); - } - - /* Process initial data if any. */ - if (data != NULL) { - GET_BUFFER_VIEW_OR_ERROR(data, &buf, goto error); - - if (buf.len >= HASHLIB_GIL_MINSIZE) { - Py_BEGIN_ALLOW_THREADS - blake2s_update(&self->state, buf.buf, buf.len); - Py_END_ALLOW_THREADS - } else { - blake2s_update(&self->state, buf.buf, buf.len); - } - PyBuffer_Release(&buf); - } - - return (PyObject *)self; - - error: - if (self != NULL) { - Py_DECREF(self); - } - return NULL; -} - -/*[clinic input] -_blake2.blake2s.copy - -Return a copy of the hash object. -[clinic start generated code]*/ - -static PyObject * -_blake2_blake2s_copy_impl(BLAKE2sObject *self) -/*[clinic end generated code: output=5b90131c4eae275e input=0b9d44942f0fe4b2]*/ -{ - BLAKE2sObject *cpy; - - if ((cpy = new_BLAKE2sObject(Py_TYPE(self))) == NULL) - return NULL; - - ENTER_HASHLIB(self); - cpy->param = self->param; - cpy->state = self->state; - LEAVE_HASHLIB(self); - return (PyObject *)cpy; -} - -/*[clinic input] -_blake2.blake2s.update - - data: object - / - -Update this hash object's state with the provided bytes-like object. -[clinic start generated code]*/ - -static PyObject * -_blake2_blake2s_update(BLAKE2sObject *self, PyObject *data) -/*[clinic end generated code: output=757dc087fec37815 input=97500db2f9de4aaa]*/ -{ - Py_buffer buf; - - GET_BUFFER_VIEW_OR_ERROUT(data, &buf); - - if (!self->use_mutex && buf.len >= HASHLIB_GIL_MINSIZE) { - self->use_mutex = true; - } - if (self->use_mutex) { - Py_BEGIN_ALLOW_THREADS - PyMutex_Lock(&self->mutex); - blake2s_update(&self->state, buf.buf, buf.len); - PyMutex_Unlock(&self->mutex); - Py_END_ALLOW_THREADS - } else { - blake2s_update(&self->state, buf.buf, buf.len); - } - - PyBuffer_Release(&buf); - - Py_RETURN_NONE; -} - -/*[clinic input] -_blake2.blake2s.digest - -Return the digest value as a bytes object. -[clinic start generated code]*/ - -static PyObject * -_blake2_blake2s_digest_impl(BLAKE2sObject *self) -/*[clinic end generated code: output=40c566ca4bc6bc51 input=f41e0b8d6d937454]*/ -{ - uint8_t digest[BLAKE2S_OUTBYTES]; - blake2s_state state_cpy; - - ENTER_HASHLIB(self); - state_cpy = self->state; - blake2s_final(&state_cpy, digest, self->param.digest_length); - LEAVE_HASHLIB(self); - return PyBytes_FromStringAndSize((const char *)digest, - self->param.digest_length); -} - -/*[clinic input] -_blake2.blake2s.hexdigest - -Return the digest value as a string of hexadecimal digits. -[clinic start generated code]*/ - -static PyObject * -_blake2_blake2s_hexdigest_impl(BLAKE2sObject *self) -/*[clinic end generated code: output=15153eb5e59c52eb input=c77a1321567e8952]*/ -{ - uint8_t digest[BLAKE2S_OUTBYTES]; - blake2s_state state_cpy; - - ENTER_HASHLIB(self); - state_cpy = self->state; - blake2s_final(&state_cpy, digest, self->param.digest_length); - LEAVE_HASHLIB(self); - return _Py_strhex((const char *)digest, self->param.digest_length); -} - - -static PyMethodDef py_blake2s_methods[] = { - _BLAKE2_BLAKE2S_COPY_METHODDEF - _BLAKE2_BLAKE2S_DIGEST_METHODDEF - _BLAKE2_BLAKE2S_HEXDIGEST_METHODDEF - _BLAKE2_BLAKE2S_UPDATE_METHODDEF - {NULL, NULL} -}; - - - -static PyObject * -py_blake2s_get_name(BLAKE2sObject *self, void *closure) -{ - return PyUnicode_FromString("blake2s"); -} - - - -static PyObject * -py_blake2s_get_block_size(BLAKE2sObject *self, void *closure) -{ - return PyLong_FromLong(BLAKE2S_BLOCKBYTES); -} - - - -static PyObject * -py_blake2s_get_digest_size(BLAKE2sObject *self, void *closure) -{ - return PyLong_FromLong(self->param.digest_length); -} - - -static PyGetSetDef py_blake2s_getsetters[] = { - {"name", (getter)py_blake2s_get_name, - NULL, NULL, NULL}, - {"block_size", (getter)py_blake2s_get_block_size, - NULL, NULL, NULL}, - {"digest_size", (getter)py_blake2s_get_digest_size, - NULL, NULL, NULL}, - {NULL} -}; - - -static void -py_blake2s_dealloc(PyObject *self) -{ - BLAKE2sObject *obj = (BLAKE2sObject *)self; - - /* Try not to leave state in memory. */ - secure_zero_memory(&obj->param, sizeof(obj->param)); - secure_zero_memory(&obj->state, sizeof(obj->state)); - - PyTypeObject *type = Py_TYPE(self); - PyObject_Free(self); - Py_DECREF(type); -} - -static PyType_Slot blake2s_type_slots[] = { - {Py_tp_dealloc, py_blake2s_dealloc}, - {Py_tp_doc, (char *)py_blake2s_new__doc__}, - {Py_tp_methods, py_blake2s_methods}, - {Py_tp_getset, py_blake2s_getsetters}, - {Py_tp_new, py_blake2s_new}, - {0,0} -}; - -PyType_Spec blake2s_type_spec = { - .name = "_blake2.blake2s", - .basicsize = sizeof(BLAKE2sObject), - .flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_IMMUTABLETYPE, - .slots = blake2s_type_slots -}; |