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cosmopolitan/third_party/mbedtls/md.h
Justine Tunney 39bf41f4eb Make numerous improvements 
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- Improve Linenoise implementation (see also github.com/jart/bestline)
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2021-09-28 01:52:34 -07:00

300 lines
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#ifndef COSMOPOLITAN_THIRD_PARTY_MBEDTLS_MD_H_
#define COSMOPOLITAN_THIRD_PARTY_MBEDTLS_MD_H_
#include "third_party/mbedtls/config.h"
COSMOPOLITAN_C_START_
/* clang-format off */
#define MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE -0x5080 /**< The selected feature is not available. */
#define MBEDTLS_ERR_MD_BAD_INPUT_DATA -0x5100 /**< Bad input parameters to function. */
#define MBEDTLS_ERR_MD_ALLOC_FAILED -0x5180 /**< Failed to allocate memory. */
#define MBEDTLS_ERR_MD_FILE_IO_ERROR -0x5200 /**< Opening or reading of file failed. */
/* MBEDTLS_ERR_MD_HW_ACCEL_FAILED is deprecated and should not be used. */
#define MBEDTLS_ERR_MD_HW_ACCEL_FAILED -0x5280 /**< MD hardware accelerator failed. */
/**
* \brief Supported message digests.
*
* \warning MD2, MD4, MD5 and SHA-1 are considered weak message digests and
* their use constitutes a security risk. We recommend considering
* stronger message digests instead.
*/
typedef enum {
MBEDTLS_MD_NONE=0, /**< None. */
MBEDTLS_MD_SHA1, /**< The SHA-1 message digest. */
MBEDTLS_MD_SHA224, /**< The SHA-224 message digest. */
MBEDTLS_MD_SHA256, /**< The SHA-256 message digest. */
MBEDTLS_MD_SHA384, /**< The SHA-384 message digest. */
MBEDTLS_MD_SHA512, /**< The SHA-512 message digest. */
MBEDTLS_MD_BLAKE2B256, /**< The BLAKE2B256 message digest. */
MBEDTLS_MD_RIPEMD160, /**< The RIPEMD-160 message digest. */
MBEDTLS_MD_MD2, /**< The MD2 message digest. */
MBEDTLS_MD_MD4, /**< The MD4 message digest. */
MBEDTLS_MD_MD5, /**< The MD5 message digest. */
} mbedtls_md_type_t;
#if defined(MBEDTLS_SHA512_C)
#define MBEDTLS_MD_MAX_SIZE 64 /* longest known is SHA512 */
#else
#define MBEDTLS_MD_MAX_SIZE 32 /* longest known is SHA256 or less */
#endif
#if defined(MBEDTLS_SHA512_C)
#define MBEDTLS_MD_MAX_BLOCK_SIZE 128
#else
#define MBEDTLS_MD_MAX_BLOCK_SIZE 64
#endif
/**
* Message digest information.
* Allows message digest functions to be called in a generic way.
*/
typedef struct mbedtls_md_info_t {
const char *name; /** Name of the message digest */
mbedtls_md_type_t type; /** Digest identifier */
unsigned char size; /** Output length of the digest function in bytes */
unsigned char block_size; /** Block length of the digest function in bytes */
int (*f_starts)(void *);
int (*f_update)(void *, const void *, size_t);
int (*f_process)(void *, const void *);
int (*f_finish)(void *, void *);
int (*f_md)(const void *, size_t, unsigned char *);
} mbedtls_md_info_t;
/**
* The generic message-digest context.
*/
typedef struct mbedtls_md_context_t {
const mbedtls_md_info_t *md_info; /** Information about the associated message digest. */
void *md_ctx; /** The digest-specific context. */
void *hmac_ctx; /** The HMAC part of the context. */
} mbedtls_md_context_t;
const uint8_t *mbedtls_md_list( void );
const mbedtls_md_info_t *mbedtls_md_info_from_string( const char * );
const mbedtls_md_info_t *mbedtls_md_info_from_type( mbedtls_md_type_t );
int mbedtls_md_clone( mbedtls_md_context_t *, const mbedtls_md_context_t * );
int mbedtls_md_setup( mbedtls_md_context_t *, const mbedtls_md_info_t *, int );
void mbedtls_md_free( mbedtls_md_context_t * );
void mbedtls_md_init( mbedtls_md_context_t * );
/**
* \brief This function extracts the message-digest size from the
* message-digest information structure.
*
* \param md_info The information structure of the message-digest algorithm
* to use.
*
* \return The size of the message-digest output in Bytes.
*/
forceinline unsigned char mbedtls_md_get_size( const mbedtls_md_info_t *md_info )
{
if( !md_info )
return( 0 );
return md_info->size;
}
/**
* \brief This function extracts the message-digest size from the
* message-digest information structure.
*
* \param md_info The information structure of the message-digest algorithm
* to use.
*
* \return The size of the message-digest output in Bytes.
*/
forceinline unsigned char mbedtls_md_get_block_size( const mbedtls_md_info_t *md_info )
{
if( !md_info )
return( 0 );
return md_info->block_size;
}
/**
* \brief This function extracts the message-digest type from the
* message-digest information structure.
*
* \param md_info The information structure of the message-digest algorithm
* to use.
*
* \return The type of the message digest.
*/
forceinline mbedtls_md_type_t mbedtls_md_get_type( const mbedtls_md_info_t *md_info )
{
if( !md_info )
return( MBEDTLS_MD_NONE );
return md_info->type;
}
/**
* \brief This function extracts the message-digest name from the
* message-digest information structure.
*
* \param md_info The information structure of the message-digest algorithm
* to use.
*
* \return The name of the message digest.
*/
forceinline const char *mbedtls_md_get_name( const mbedtls_md_info_t *md_info )
{
if( !md_info )
return( NULL );
return md_info->name;
}
/**
* \brief This function starts a message-digest computation.
*
* You must call this function after setting up the context
* with mbedtls_md_setup(), and before passing data with
* mbedtls_md_update().
*
* \param ctx The generic message-digest context.
*
* \return \c 0 on success.
* \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification
* failure.
*/
forceinline int mbedtls_md_starts( mbedtls_md_context_t *ctx )
{
if( !ctx || !ctx->md_info )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return ctx->md_info->f_starts( ctx->md_ctx );
}
/**
* \brief This function feeds an input buffer into an ongoing
* message-digest computation.
*
* You must call mbedtls_md_starts() before calling this
* function. You may call this function multiple times.
* Afterwards, call mbedtls_md_finish().
*
* \param ctx The generic message-digest context.
* \param input The buffer holding the input data.
* \param ilen The length of the input data.
*
* \return \c 0 on success.
* \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification
* failure.
*/
forceinline int mbedtls_md_update( mbedtls_md_context_t *ctx,
const unsigned char *input, size_t ilen )
{
if( !ctx || !ctx->md_info )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return ctx->md_info->f_update( ctx->md_ctx, input, ilen );
}
/**
* \brief This function finishes the digest operation,
* and writes the result to the output buffer.
*
* Call this function after a call to mbedtls_md_starts(),
* followed by any number of calls to mbedtls_md_update().
* Afterwards, you may either clear the context with
* mbedtls_md_free(), or call mbedtls_md_starts() to reuse
* the context for another digest operation with the same
* algorithm.
*
* \param ctx The generic message-digest context.
* \param output The buffer for the generic message-digest checksum result.
*
* \return \c 0 on success.
* \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification
* failure.
*/
forceinline int mbedtls_md_finish( mbedtls_md_context_t *ctx,
unsigned char *output )
{
if( !ctx || !ctx->md_info )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return ctx->md_info->f_finish( ctx->md_ctx, output );
}
/**
* \brief This function calculates the message-digest of a buffer,
* with respect to a configurable message-digest algorithm
* in a single call.
*
* The result is calculated as
* Output = message_digest(input buffer).
*
* \param md_info The information structure of the message-digest algorithm
* to use.
* \param input The buffer holding the data.
* \param ilen The length of the input data.
* \param output The generic message-digest checksum result.
*
* \return \c 0 on success.
* \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification
* failure.
*/
forceinline int mbedtls_md( const mbedtls_md_info_t *md_info,
const unsigned char *input, size_t ilen,
unsigned char *output )
{
if( !md_info )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return md_info->f_md(input, ilen, output );
}
int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path,
unsigned char *output );
int mbedtls_md_hmac_starts( mbedtls_md_context_t *ctx, const unsigned char *key,
size_t keylen );
/**
* \brief This function feeds an input buffer into an ongoing HMAC
* computation.
*
* Call mbedtls_md_hmac_starts() or mbedtls_md_hmac_reset()
* before calling this function.
* You may call this function multiple times to pass the
* input piecewise.
* Afterwards, call mbedtls_md_hmac_finish().
*
* \param ctx The message digest context containing an embedded HMAC
* context.
* \param input The buffer holding the input data.
* \param ilen The length of the input data.
*
* \return \c 0 on success.
* \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification
* failure.
*/
forceinline int mbedtls_md_hmac_update( mbedtls_md_context_t *ctx,
const unsigned char *input,
size_t ilen )
{
if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return( mbedtls_md_update( ctx, input, ilen ) );
}
int mbedtls_md_hmac_finish( mbedtls_md_context_t *, unsigned char *);
int mbedtls_md_hmac_reset( mbedtls_md_context_t * );
int mbedtls_md_hmac( const mbedtls_md_info_t *, const unsigned char *, size_t, const unsigned char *, size_t, unsigned char * );
forceinline int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data )
{
if( !ctx || !ctx->md_info )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return ctx->md_info->f_process( ctx->md_ctx, data );
}
const char *mbedtls_md_type_name(mbedtls_md_type_t);
extern const mbedtls_md_info_t mbedtls_md2_info;
extern const mbedtls_md_info_t mbedtls_md4_info;
extern const mbedtls_md_info_t mbedtls_md5_info;
extern const mbedtls_md_info_t mbedtls_sha1_info;
extern const mbedtls_md_info_t mbedtls_sha224_info;
extern const mbedtls_md_info_t mbedtls_sha256_info;
extern const mbedtls_md_info_t mbedtls_sha384_info;
extern const mbedtls_md_info_t mbedtls_sha512_info;
extern const mbedtls_md_info_t mbedtls_blake2b256_info;
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_THIRD_PARTY_MBEDTLS_MD_H_ */
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