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Add int return values to SHA-256 function calls

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The following function calls are being deprecated to introduce int
return values.
    * mbedtls_sha256()
    * mbedtls_sha256_starts()
    * mbedtls_sha256_update()
    * mbedtls_sha256_finish()
    * mbedtls_sha256_process()
The return codes can be used to return error values. This is important
when using hardware accelerators.
This commit is contained in:
Andres Amaya Garcia 2017-05-02 11:38:47 +01:00
parent b1a8bf9725
commit 72a7f53064
2 changed files with 202 additions and 35 deletions
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140
include/mbedtls/sha256.h
View file

@ -32,6 +32,11 @@
#include <stddef.h>
#include <stdint.h>
#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
!defined(inline) && !defined(__cplusplus)
#define inline __inline
#endif
#if !defined(MBEDTLS_SHA256_ALT)
// Regular implementation
//
@ -80,8 +85,10 @@ void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
*
* \param ctx context to be initialized
* \param is224 0 = use SHA256, 1 = use SHA224
*
* \return 0 if successful
*/
void mbedtls_sha256_starts( mbedtls_sha256_context *ctx, int is224 );
int mbedtls_sha256_starts_ext( mbedtls_sha256_context *ctx, int is224 );
/**
* \brief SHA-256 process buffer
@ -89,20 +96,105 @@ void mbedtls_sha256_starts( mbedtls_sha256_context *ctx, int is224 );
* \param ctx SHA-256 context
* \param input buffer holding the data
* \param ilen length of the input data
*
* \return 0 if successful
*/
void mbedtls_sha256_update( mbedtls_sha256_context *ctx, const unsigned char *input,
size_t ilen );
int mbedtls_sha256_update_ext( mbedtls_sha256_context *ctx,
const unsigned char *input,
size_t ilen );
/**
* \brief SHA-256 final digest
*
* \param ctx SHA-256 context
* \param output SHA-224/256 checksum result
*
* \return 0 if successful
*/
void mbedtls_sha256_finish( mbedtls_sha256_context *ctx, unsigned char output[32] );
int mbedtls_sha256_finish_ext( mbedtls_sha256_context *ctx,
unsigned char output[32] );
/* Internal use */
void mbedtls_sha256_process( mbedtls_sha256_context *ctx, const unsigned char data[64] );
/**
* \brief SHA-256 process data block (internal use only)
*
* \param ctx SHA-256 context
* \param data buffer holding one block of data
*
* \return 0 if successful
*/
int mbedtls_sha256_process_ext( mbedtls_sha256_context *ctx,
const unsigned char data[64] );
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
#if defined(MBEDTLS_DEPRECATED_WARNING)
#define MBEDTLS_DEPRECATED __attribute__((deprecated))
#else
#define MBEDTLS_DEPRECATED
#endif
/**
* \brief SHA-256 context setup
*
* \deprecated Superseded by mbedtls_sha256_starts_ext() in 2.5.0
*
* \param ctx context to be initialized
* \param is224 0 = use SHA256, 1 = use SHA224
*/
MBEDTLS_DEPRECATED static inline void mbedtls_sha256_starts(
mbedtls_sha256_context *ctx,
int is224 )
{
mbedtls_sha256_starts_ext( ctx, is224 );
}
/**
* \brief SHA-256 process buffer
*
* \deprecated Superseded by mbedtls_sha256_update_ext() in 2.5.0
*
* \param ctx SHA-256 context
* \param input buffer holding the data
* \param ilen length of the input data
*/
MBEDTLS_DEPRECATED static inline void mbedtls_sha256_update(
mbedtls_sha256_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_sha256_update_ext( ctx, input, ilen );
}
/**
* \brief SHA-256 final digest
*
* \deprecated Superseded by mbedtls_sha256_finish_ext() in 2.5.0
*
* \param ctx SHA-256 context
* \param output SHA-224/256 checksum result
*/
MBEDTLS_DEPRECATED static inline void mbedtls_sha256_finish(
mbedtls_sha256_context *ctx,
unsigned char output[32] )
{
mbedtls_sha256_finish_ext( ctx, output );
}
/**
* \brief SHA-256 process data block (internal use only)
*
* \deprecated Superseded by mbedtls_sha256_process_ext() in 2.5.0
*
* \param ctx SHA-256 context
* \param data buffer holding one block of data
*/
MBEDTLS_DEPRECATED static inline void mbedtls_sha256_process(
mbedtls_sha256_context *ctx,
const unsigned char data[64] )
{
mbedtls_sha256_process_ext( ctx, data );
}
#undef MBEDTLS_DEPRECATED
#endif /* !MBEDTLS_DEPRECATED_REMOVED */
#ifdef __cplusplus
}
@ -123,9 +215,41 @@ extern "C" {
* \param ilen length of the input data
* \param output SHA-224/256 checksum result
* \param is224 0 = use SHA256, 1 = use SHA224
*
* \return 0 if successful
*/
void mbedtls_sha256( const unsigned char *input, size_t ilen,
unsigned char output[32], int is224 );
int mbedtls_sha256_ext( const unsigned char *input,
size_t ilen,
unsigned char output[32],
int is224 );
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
#if defined(MBEDTLS_DEPRECATED_WARNING)
#define MBEDTLS_DEPRECATED __attribute__((deprecated))
#else
#define MBEDTLS_DEPRECATED
#endif
/**
* \brief Output = SHA-256( input buffer )
*
* \deprecated Superseded by mbedtls_sha256_ext() in 2.5.0
*
* \param input buffer holding the data
* \param ilen length of the input data
* \param output SHA-224/256 checksum result
* \param is224 0 = use SHA256, 1 = use SHA224
*/
MBEDTLS_DEPRECATED static inline void mbedtls_sha256(
const unsigned char *input,
size_t ilen,
unsigned char output[32],
int is224 )
{
mbedtls_sha256_ext( input, ilen, output, is224 );
}
#undef MBEDTLS_DEPRECATED
#endif /* !MBEDTLS_DEPRECATED_REMOVED */
/**
* \brief Checkup routine