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Document valid function params for SHA-256 functions

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Andres Amaya Garcia 2018-12-10 10:22:27 +00:00 committed by Hanno Becker
parent 9e76c0e77f
commit 0152f1e948
1 changed files with 22 additions and 1 deletions
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23
include/mbedtls/sha256.h
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@ -38,7 +38,7 @@
/* MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED is deprecated and should not be used. */ /* MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED is deprecated and should not be used. */
#define MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED -0x0037 /**< SHA-256 hardware accelerator failed */ #define MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED -0x0037 /**< SHA-256 hardware accelerator failed */
#define MBEDTLS_ERR_SHA256_BAD_INPUT_DATA -0x0074 /**< Invalid input data. */ #define MBEDTLS_ERR_SHA256_BAD_INPUT_DATA -0x0074 /**< SHA-256 input data was malformed. */
#ifdef __cplusplus #ifdef __cplusplus
extern "C" { extern "C" {
@ -73,6 +73,7 @@ mbedtls_sha256_context;
* \brief This function initializes a SHA-256 context. * \brief This function initializes a SHA-256 context.
* *
* \param ctx The SHA-256 context to initialize. * \param ctx The SHA-256 context to initialize.
* Must not be \c NULL.
*/ */
void mbedtls_sha256_init( mbedtls_sha256_context *ctx ); void mbedtls_sha256_init( mbedtls_sha256_context *ctx );
@ -87,7 +88,9 @@ void mbedtls_sha256_free( mbedtls_sha256_context *ctx );
* \brief This function clones the state of a SHA-256 context. * \brief This function clones the state of a SHA-256 context.
* *
* \param dst The destination context. * \param dst The destination context.
* Must not be \c NULL.
* \param src The context to clone. * \param src The context to clone.
* Must not be \c NULL.
*/ */
void mbedtls_sha256_clone( mbedtls_sha256_context *dst, void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
const mbedtls_sha256_context *src ); const mbedtls_sha256_context *src );
@ -97,6 +100,7 @@ void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
* calculation. * calculation.
* *
* \param ctx The context to initialize. * \param ctx The context to initialize.
* Must not be \c NULL.
* \param is224 Determines which function to use: * \param is224 Determines which function to use:
* 0: Use SHA-256, or 1: Use SHA-224. * 0: Use SHA-256, or 1: Use SHA-224.
* *
@ -109,7 +113,9 @@ int mbedtls_sha256_starts_ret( mbedtls_sha256_context *ctx, int is224 );
* SHA-256 checksum calculation. * SHA-256 checksum calculation.
* *
* \param ctx The SHA-256 context. * \param ctx The SHA-256 context.
* Must not be \c NULL.
* \param input The buffer holding the data. * \param input The buffer holding the data.
* Must not be \c NULL if \p ilen is greater than 0.
* \param ilen The length of the input data. * \param ilen The length of the input data.
* *
* \return \c 0 on success. * \return \c 0 on success.
@ -123,7 +129,9 @@ int mbedtls_sha256_update_ret( mbedtls_sha256_context *ctx,
* the result to the output buffer. * the result to the output buffer.
* *
* \param ctx The SHA-256 context. * \param ctx The SHA-256 context.
* Must not be \c NULL.
* \param output The SHA-224 or SHA-256 checksum result. * \param output The SHA-224 or SHA-256 checksum result.
* Must not be \c NULL.
* *
* \return \c 0 on success. * \return \c 0 on success.
*/ */
@ -136,7 +144,9 @@ int mbedtls_sha256_finish_ret( mbedtls_sha256_context *ctx,
* internal use only. * internal use only.
* *
* \param ctx The SHA-256 context. * \param ctx The SHA-256 context.
* Must not be \c NULL.
* \param data The buffer holding one block of data. * \param data The buffer holding one block of data.
* Must not be \c NULL.
* *
* \return \c 0 on success. * \return \c 0 on success.
*/ */
@ -157,6 +167,7 @@ int mbedtls_internal_sha256_process( mbedtls_sha256_context *ctx,
* \deprecated Superseded by mbedtls_sha256_starts_ret() in 2.7.0. * \deprecated Superseded by mbedtls_sha256_starts_ret() in 2.7.0.
* *
* \param ctx The context to initialize. * \param ctx The context to initialize.
* Must not be \c NULL.
* \param is224 Determines which function to use: * \param is224 Determines which function to use:
* 0: Use SHA-256, or 1: Use SHA-224. * 0: Use SHA-256, or 1: Use SHA-224.
*/ */
@ -170,7 +181,9 @@ MBEDTLS_DEPRECATED void mbedtls_sha256_starts( mbedtls_sha256_context *ctx,
* \deprecated Superseded by mbedtls_sha256_update_ret() in 2.7.0. * \deprecated Superseded by mbedtls_sha256_update_ret() in 2.7.0.
* *
* \param ctx The SHA-256 context to initialize. * \param ctx The SHA-256 context to initialize.
* Must not be \c NULL.
* \param input The buffer holding the data. * \param input The buffer holding the data.
* Must not be \c NULL if \p ilen is greater than 0.
* \param ilen The length of the input data. * \param ilen The length of the input data.
*/ */
MBEDTLS_DEPRECATED void mbedtls_sha256_update( mbedtls_sha256_context *ctx, MBEDTLS_DEPRECATED void mbedtls_sha256_update( mbedtls_sha256_context *ctx,
@ -184,7 +197,9 @@ MBEDTLS_DEPRECATED void mbedtls_sha256_update( mbedtls_sha256_context *ctx,
* \deprecated Superseded by mbedtls_sha256_finish_ret() in 2.7.0. * \deprecated Superseded by mbedtls_sha256_finish_ret() in 2.7.0.
* *
* \param ctx The SHA-256 context. * \param ctx The SHA-256 context.
* Must not be \c NULL.
* \param output The SHA-224 or SHA-256 checksum result. * \param output The SHA-224 or SHA-256 checksum result.
* Must not be \c NULL.
*/ */
MBEDTLS_DEPRECATED void mbedtls_sha256_finish( mbedtls_sha256_context *ctx, MBEDTLS_DEPRECATED void mbedtls_sha256_finish( mbedtls_sha256_context *ctx,
unsigned char output[32] ); unsigned char output[32] );
@ -197,7 +212,9 @@ MBEDTLS_DEPRECATED void mbedtls_sha256_finish( mbedtls_sha256_context *ctx,
* \deprecated Superseded by mbedtls_internal_sha256_process() in 2.7.0. * \deprecated Superseded by mbedtls_internal_sha256_process() in 2.7.0.
* *
* \param ctx The SHA-256 context. * \param ctx The SHA-256 context.
* Must not be \c NULL.
* \param data The buffer holding one block of data. * \param data The buffer holding one block of data.
* Must not be \c NULL.
*/ */
MBEDTLS_DEPRECATED void mbedtls_sha256_process( mbedtls_sha256_context *ctx, MBEDTLS_DEPRECATED void mbedtls_sha256_process( mbedtls_sha256_context *ctx,
const unsigned char data[64] ); const unsigned char data[64] );
@ -216,8 +233,10 @@ MBEDTLS_DEPRECATED void mbedtls_sha256_process( mbedtls_sha256_context *ctx,
* output = SHA-256(input buffer). * output = SHA-256(input buffer).
* *
* \param input The buffer holding the input data. * \param input The buffer holding the input data.
* Must not be \c NULL if \p ilen is greater than 0.
* \param ilen The length of the input data. * \param ilen The length of the input data.
* \param output The SHA-224 or SHA-256 checksum result. * \param output The SHA-224 or SHA-256 checksum result.
* Must not be \c NULL.
* \param is224 Determines which function to use: * \param is224 Determines which function to use:
* 0: Use SHA-256, or 1: Use SHA-224. * 0: Use SHA-256, or 1: Use SHA-224.
*/ */
@ -246,8 +265,10 @@ int mbedtls_sha256_ret( const unsigned char *input,
* \deprecated Superseded by mbedtls_sha256_ret() in 2.7.0. * \deprecated Superseded by mbedtls_sha256_ret() in 2.7.0.
* *
* \param input The buffer holding the data. * \param input The buffer holding the data.
* Must not be \c NULL if \p ilen is greater than 0.
* \param ilen The length of the input data. * \param ilen The length of the input data.
* \param output The SHA-224 or SHA-256 checksum result. * \param output The SHA-224 or SHA-256 checksum result.
* Must not be \c NULL.
* \param is224 Determines which function to use: * \param is224 Determines which function to use:
* 0: Use SHA-256, or 1: Use SHA-224. * 0: Use SHA-256, or 1: Use SHA-224.
*/ */