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Add more hashing apis to redbean

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This commit is contained in:
Justine Tunney 2021-07-04 18:36:47 -07:00
parent 0ea2907730
commit 8d5f60a9cd
10 changed files with 319 additions and 238 deletions
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97
third_party/mbedtls/sha256.c vendored
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@ -47,18 +47,36 @@ void sha256_transform_rorx(mbedtls_sha256_context *, const uint8_t *, int);
#if !defined(MBEDTLS_SHA256_ALT)
/**
* \brief This function initializes a SHA-256 context.
*
* \param ctx The SHA-256 context to initialize. This must not be \c NULL.
*/
void mbedtls_sha256_init( mbedtls_sha256_context *ctx )
{
SHA256_VALIDATE( ctx != NULL );
memset( ctx, 0, sizeof( mbedtls_sha256_context ) );
}
/**
* \brief This function clears a SHA-256 context.
*
* \param ctx The SHA-256 context to clear. This may be \c NULL, in which
* case this function returns immediately. If it is not \c NULL,
* it must point to an initialized SHA-256 context.
*/
void mbedtls_sha256_free( mbedtls_sha256_context *ctx )
{
if( ctx == NULL ) return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_sha256_context ) );
}
/**
* \brief This function clones the state of a SHA-256 context.
*
* \param dst The destination context. This must be initialized.
* \param src The context to clone. This must be initialized.
*/
void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
const mbedtls_sha256_context *src )
{
@ -67,8 +85,16 @@ void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
*dst = *src;
}
/*
* SHA-256 context setup
/**
* \brief This function starts a SHA-224 or SHA-256 checksum
* calculation.
*
* \param ctx The context to use. This must be initialized.
* \param is224 This determines which function to use. This must be
* either \c 0 for SHA-256, or \c 1 for SHA-224.
*
* \return \c 0 on success.
* \return A negative error code on failure.
*/
int mbedtls_sha256_starts_ret( mbedtls_sha256_context *ctx, int is224 )
{
@ -155,6 +181,18 @@ static const uint32_t K[] =
(d) += local.temp1; (h) = local.temp1 + local.temp2; \
} while( 0 )
/**
* \brief This function processes a single data block within
* the ongoing SHA-256 computation. This function is for
* internal use only.
*
* \param ctx The SHA-256 context. This must be initialized.
* \param data The buffer holding one block of data. This must
* be a readable buffer of length \c 64 Bytes.
*
* \return \c 0 on success.
* \return A negative error code on failure.
*/
int mbedtls_internal_sha256_process( mbedtls_sha256_context *ctx,
const unsigned char data[64] )
{
@ -243,8 +281,18 @@ int mbedtls_internal_sha256_process( mbedtls_sha256_context *ctx,
#endif /* !MBEDTLS_SHA256_PROCESS_ALT */
/*
* SHA-256 process buffer
/**
* \brief This function feeds an input buffer into an ongoing
* SHA-256 checksum calculation.
*
* \param ctx The SHA-256 context. This must be initialized
* and have a hash operation started.
* \param input The buffer holding the data. This must be a readable
* buffer of length \p ilen Bytes.
* \param ilen The length of the input data in Bytes.
*
* \return \c 0 on success.
* \return A negative error code on failure.
*/
int mbedtls_sha256_update_ret( mbedtls_sha256_context *ctx,
const unsigned char *input,
@ -302,8 +350,17 @@ int mbedtls_sha256_update_ret( mbedtls_sha256_context *ctx,
return( 0 );
}
/*
* SHA-256 final digest
/**
* \brief This function finishes the SHA-256 operation, and writes
* the result to the output buffer.
*
* \param ctx The SHA-256 context. This must be initialized
* and have a hash operation started.
* \param output The SHA-224 or SHA-256 checksum result.
* This must be a writable buffer of length \c 32 Bytes.
*
* \return \c 0 on success.
* \return A negative error code on failure.
*/
int mbedtls_sha256_finish_ret( mbedtls_sha256_context *ctx,
unsigned char output[32] )
@ -370,10 +427,25 @@ int mbedtls_sha256_finish_ret( mbedtls_sha256_context *ctx,
#endif /* !MBEDTLS_SHA256_ALT */
/*
* output = SHA-256( input buffer )
/**
* \brief This function calculates the SHA-224 or SHA-256
* checksum of a buffer.
*
* The function allocates the context, performs the
* calculation, and frees the context.
*
* The SHA-256 result is calculated as
* output = SHA-256(input buffer).
*
* \param input The buffer holding the data. This must be a readable
* buffer of length \p ilen Bytes.
* \param ilen The length of the input data in Bytes.
* \param output The SHA-224 or SHA-256 checksum result. This must
* be a writable buffer of length \c 32 Bytes.
* \param is224 Determines which function to use. This must be
* either \c 0 for SHA-256, or \c 1 for SHA-224.
*/
int mbedtls_sha256_ret( const unsigned char *input,
int mbedtls_sha256_ret( const void *input,
size_t ilen,
unsigned char output[32],
int is224 )
@ -453,8 +525,11 @@ static const unsigned char sha256_test_sum[6][32] =
0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 }
};
/*
* Checkup routine
/**
* \brief The SHA-224 and SHA-256 checkup routine.
*
* \return \c 0 on success.
* \return \c 1 on failure.
*/
int mbedtls_sha256_self_test( int verbose )
{