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+crypto_verify64

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This commit is contained in:
Frank Denis 2014-04-08 14:11:30 -07:00 committed by evoskuil
parent 0f9aec94b6
commit 80aff278d0
8 changed files with 156 additions and 1 deletions
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3
libsodium.vcxproj
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@ -359,6 +359,7 @@
<ClInclude Include="src\libsodium\include\sodium\crypto_uint8.h" />
<ClInclude Include="src\libsodium\include\sodium\crypto_verify_16.h" />
<ClInclude Include="src\libsodium\include\sodium\crypto_verify_32.h" />
<ClInclude Include="src\libsodium\include\sodium\crypto_verify_64.h" />
<ClInclude Include="src\libsodium\include\sodium\export.h" />
<ClInclude Include="src\libsodium\include\sodium\randombytes.h" />
<ClInclude Include="src\libsodium\include\sodium\randombytes_salsa20_random.h" />
@ -494,6 +495,8 @@
<ClCompile Include="src\libsodium\crypto_verify\16\verify_16_api.c" />
<ClCompile Include="src\libsodium\crypto_verify\32\ref\verify_32.c" />
<ClCompile Include="src\libsodium\crypto_verify\32\verify_32_api.c" />
<ClCompile Include="src\libsodium\crypto_verify\64\ref\verify_64.c" />
<ClCompile Include="src\libsodium\crypto_verify\64\verify_64_api.c" />
<ClCompile Include="src\libsodium\randombytes\randombytes.c" />
<ClCompile Include="src\libsodium\randombytes\salsa20\randombytes_salsa20_random.c" />
<ClCompile Include="src\libsodium\randombytes\sysrandom\randombytes_sysrandom.c" />

11
libsodium.vcxproj.filters
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@ -147,6 +147,9 @@
<ClInclude Include="src\libsodium\include\sodium\crypto_verify_32.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="src\libsodium\include\sodium\crypto_verify_64.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="src\libsodium\include\sodium\export.h">
<Filter>Header Files</Filter>
</ClInclude>
@ -544,6 +547,12 @@
<ClCompile Include="src\libsodium\crypto_verify\32\verify_32_api.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="src\libsodium\crypto_verify\64\ref\verify_64.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="src\libsodium\crypto_verify\64\verify_64_api.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="src\libsodium\sodium\compat.c">
<Filter>Source Files</Filter>
</ClCompile>
@ -566,4 +575,4 @@
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
</Project>
</Project>

3
src/libsodium/Makefile.am
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@ -180,6 +180,9 @@ libsodium_la_SOURCES = \
crypto_verify/32/verify_32_api.c \
crypto_verify/32/ref/api.h \
crypto_verify/32/ref/verify_32.c \
crypto_verify/64/verify_64_api.c \
crypto_verify/64/ref/api.h \
crypto_verify/64/ref/verify_64.c \
randombytes/randombytes.c \
randombytes/salsa20/randombytes_salsa20_random.c \
randombytes/sysrandom/randombytes_sysrandom.c \

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src/libsodium/crypto_verify/64/ref/api.h Normal file
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@ -0,0 +1,2 @@
#include "crypto_verify_64.h"

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src/libsodium/crypto_verify/64/ref/verify_64.c Normal file
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#include "api.h"
int crypto_verify_64(const unsigned char *x,const unsigned char *y)
{
unsigned int differentbits = 0;
#define F(i) differentbits |= x[i] ^ y[i];
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return (1 & ((differentbits - 1) >> 8)) - 1;
}

6
src/libsodium/crypto_verify/64/verify_64_api.c Normal file
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@ -0,0 +1,6 @@
#include "crypto_verify_64.h"
size_t
crypto_verify_64_bytes(void) {
return crypto_verify_64_BYTES;
}

1
src/libsodium/include/Makefile.am
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@ -46,6 +46,7 @@ SODIUM_EXPORT = \
sodium/crypto_uint8.h \
sodium/crypto_verify_16.h \
sodium/crypto_verify_32.h \
sodium/crypto_verify_64.h \
sodium/export.h \
sodium/randombytes.h \
sodium/randombytes_salsa20_random.h \

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src/libsodium/include/sodium/crypto_verify_64.h Normal file
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@ -0,0 +1,59 @@
#ifndef crypto_verify_64_H
#define crypto_verify_64_H
#include <stddef.h>
#include "export.h"
/** \addtogroup strcmp
*
* @{
*/
#define crypto_verify_64_BYTES 64U
#ifdef __cplusplus
extern "C" {
#endif
/// @TODO
SODIUM_EXPORT
size_t crypto_verify_64_bytes(void);
/**
* Compares the first crypto_verify_64_BYTES of the given strings.
*
* @param[in] string1 a string
* @param[in] string2 another string
*
* @return 0 if string1 and string2 are equal, otherwise -1.
*
* @pre string1 must be minimum of crypto_verify_64_BYTES long.
* @pre string2 must be minimum of crypto_verify_64_BYTES long.
*
* @note The time taken by the function is independent of the contents
* of string1 and string2. In contrast, the standard C comparison
* function memcmp(string1,string2,64) takes time that is dependent on
* the longest matching prefix of string1 and string2. This often
* allows for easy timing attacks.
*
* Example invocation:
*
*~~~~~{.c}
* const unsigned char x[64];
* const unsigned char y[64];
*
* crypto_verify_64(x,y);
*~~~~~
*/
SODIUM_EXPORT
int crypto_verify_64(const unsigned char *x, const unsigned char *y);
#define crypto_verify_64_ref crypto_verify_64 ///< @TODO
/// @}
#ifdef __cplusplus
}
#endif
#endif