157 lines
4.8 KiB
Diff
157 lines
4.8 KiB
Diff
Index: Lib/test/test_hashlib.py
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===================================================================
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--- Lib/test/test_hashlib.py (revision 64624)
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+++ Lib/test/test_hashlib.py (working copy)
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@@ -9,8 +9,8 @@
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import hashlib
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import unittest
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from test import test_support
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+from test.test_support import _4G, precisionbigmemtest
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-
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def hexstr(s):
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import string
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h = string.hexdigits
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@@ -55,7 +55,6 @@
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m2.update(aas + bees + cees)
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self.assertEqual(m1.digest(), m2.digest())
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-
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def check(self, name, data, digest):
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# test the direct constructors
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computed = getattr(hashlib, name)(data).hexdigest()
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@@ -74,8 +73,23 @@
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def test_case_md5_2(self):
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self.check('md5', 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',
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'd174ab98d277d9f5a5611c2c9f419d9f')
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+
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+ @precisionbigmemtest(size=_4G + 5, memuse=1)
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+ def test_case_md5_huge(self, size):
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+ if size == _4G + 5:
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+ try:
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+ self.check('md5', 'A'*size, 'c9af2dff37468ce5dfee8f2cfc0a9c6d')
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+ except OverflowError:
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+ pass # 32-bit arch
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+
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+ @precisionbigmemtest(size=_4G - 1, memuse=1)
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+ def test_case_md5_uintmax(self, size):
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+ if size == _4G - 1:
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+ try:
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+ self.check('md5', 'A'*size, '28138d306ff1b8281f1a9067e1a1a2b3')
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+ except OverflowError:
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+ pass # 32-bit arch
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-
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# use the three examples from Federal Information Processing Standards
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# Publication 180-1, Secure Hash Standard, 1995 April 17
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# http://www.itl.nist.gov/div897/pubs/fip180-1.htm
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Index: Modules/_hashopenssl.c
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===================================================================
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--- Modules/_hashopenssl.c (revision 64624)
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+++ Modules/_hashopenssl.c (working copy)
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@@ -19,7 +19,9 @@
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/* EVP is the preferred interface to hashing in OpenSSL */
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#include <openssl/evp.h>
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+#define MUNCH_SIZE INT_MAX
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+
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#ifndef HASH_OBJ_CONSTRUCTOR
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#define HASH_OBJ_CONSTRUCTOR 0
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#endif
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@@ -164,9 +166,18 @@
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if (!PyArg_ParseTuple(args, "s#:update", &cp, &len))
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return NULL;
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+ if (len > 0 && len <= MUNCH_SIZE) {
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EVP_DigestUpdate(&self->ctx, cp, Py_SAFE_DOWNCAST(len, Py_ssize_t,
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unsigned int));
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-
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+ } else {
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+ Py_ssize_t offset = 0;
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+ while (len) {
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+ unsigned int process = len > MUNCH_SIZE ? MUNCH_SIZE : len;
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+ EVP_DigestUpdate(&self->ctx, cp + offset, process);
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+ len -= process;
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+ offset += process;
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+ }
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+ }
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Py_INCREF(Py_None);
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return Py_None;
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}
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@@ -255,10 +266,21 @@
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self->name = name_obj;
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Py_INCREF(self->name);
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- if (cp && len)
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+ if (cp && len) {
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+ if (len > 0 && len <= MUNCH_SIZE) {
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EVP_DigestUpdate(&self->ctx, cp, Py_SAFE_DOWNCAST(len, Py_ssize_t,
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unsigned int));
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-
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+ } else {
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+ Py_ssize_t offset = 0;
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+ while (len) {
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+ unsigned int process = len > MUNCH_SIZE ? MUNCH_SIZE : len;
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+ EVP_DigestUpdate(&self->ctx, cp + offset, process);
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+ len -= process;
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+ offset += process;
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+ }
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+ }
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+ }
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+
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return 0;
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}
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#endif
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@@ -327,7 +349,7 @@
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static PyObject *
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EVPnew(PyObject *name_obj,
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const EVP_MD *digest, const EVP_MD_CTX *initial_ctx,
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- const unsigned char *cp, unsigned int len)
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+ const unsigned char *cp, Py_ssize_t len)
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{
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EVPobject *self;
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@@ -345,8 +367,20 @@
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EVP_DigestInit(&self->ctx, digest);
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}
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- if (cp && len)
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- EVP_DigestUpdate(&self->ctx, cp, len);
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+ if (cp && len) {
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+ if (len > 0 && len <= MUNCH_SIZE) {
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+ EVP_DigestUpdate(&self->ctx, cp, Py_SAFE_DOWNCAST(len, Py_ssize_t,
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+ unsigned int));
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+ } else {
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+ Py_ssize_t offset = 0;
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+ while (len) {
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+ unsigned int process = len > MUNCH_SIZE ? MUNCH_SIZE : len;
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+ EVP_DigestUpdate(&self->ctx, cp + offset, process);
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+ len -= process;
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+ offset += process;
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+ }
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+ }
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+ }
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return (PyObject *)self;
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}
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@@ -383,8 +417,7 @@
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digest = EVP_get_digestbyname(name);
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- return EVPnew(name_obj, digest, NULL, cp, Py_SAFE_DOWNCAST(len, Py_ssize_t,
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- unsigned int));
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+ return EVPnew(name_obj, digest, NULL, cp, len);
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}
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/*
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@@ -409,7 +442,7 @@
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CONST_ ## NAME ## _name_obj, \
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NULL, \
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CONST_new_ ## NAME ## _ctx_p, \
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- cp, Py_SAFE_DOWNCAST(len, Py_ssize_t, unsigned int)); \
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+ cp, len); \
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}
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/* a PyMethodDef structure for the constructor */
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