mbed TLS v3.1.0
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This file contains SHA-384 and SHA-512 definitions and functions. More...
#include "mbedtls/private_access.h"
#include "mbedtls/build_info.h"
#include <stddef.h>
#include <stdint.h>
#include "sha512_alt.h"
Go to the source code of this file.
Macros | |
#define | MBEDTLS_ERR_SHA512_BAD_INPUT_DATA -0x0075 |
Functions | |
void | mbedtls_sha512_init (mbedtls_sha512_context *ctx) |
This function initializes a SHA-512 context. More... | |
void | mbedtls_sha512_free (mbedtls_sha512_context *ctx) |
This function clears a SHA-512 context. More... | |
void | mbedtls_sha512_clone (mbedtls_sha512_context *dst, const mbedtls_sha512_context *src) |
This function clones the state of a SHA-512 context. More... | |
int | mbedtls_sha512_starts (mbedtls_sha512_context *ctx, int is384) |
This function starts a SHA-384 or SHA-512 checksum calculation. More... | |
int | mbedtls_sha512_update (mbedtls_sha512_context *ctx, const unsigned char *input, size_t ilen) |
This function feeds an input buffer into an ongoing SHA-512 checksum calculation. More... | |
int | mbedtls_sha512_finish (mbedtls_sha512_context *ctx, unsigned char *output) |
This function finishes the SHA-512 operation, and writes the result to the output buffer. More... | |
int | mbedtls_internal_sha512_process (mbedtls_sha512_context *ctx, const unsigned char data[128]) |
This function processes a single data block within the ongoing SHA-512 computation. This function is for internal use only. More... | |
int | mbedtls_sha512 (const unsigned char *input, size_t ilen, unsigned char *output, int is384) |
This function calculates the SHA-512 or SHA-384 checksum of a buffer. More... | |
int | mbedtls_sha512_self_test (int verbose) |
The SHA-384 or SHA-512 checkup routine. More... | |
This file contains SHA-384 and SHA-512 definitions and functions.
The Secure Hash Algorithms 384 and 512 (SHA-384 and SHA-512) cryptographic hash functions are defined in FIPS 180-4: Secure Hash Standard (SHS).
Definition in file sha512.h.
#define MBEDTLS_ERR_SHA512_BAD_INPUT_DATA -0x0075 |
int mbedtls_internal_sha512_process | ( | mbedtls_sha512_context * | ctx, |
const unsigned char | data[128] | ||
) |
This function processes a single data block within the ongoing SHA-512 computation. This function is for internal use only.
ctx | The SHA-512 context. This must be initialized. |
data | The buffer holding one block of data. This must be a readable buffer of length 128 Bytes. |
0
on success. int mbedtls_sha512 | ( | const unsigned char * | input, |
size_t | ilen, | ||
unsigned char * | output, | ||
int | is384 | ||
) |
This function calculates the SHA-512 or SHA-384 checksum of a buffer.
The function allocates the context, performs the calculation, and frees the context.
The SHA-512 result is calculated as output = SHA-512(input buffer).
input | The buffer holding the input data. This must be a readable buffer of length ilen Bytes. |
ilen | The length of the input data in Bytes. |
output | The SHA-384 or SHA-512 checksum result. This must be a writable buffer of length 64 bytes for SHA-512, 48 bytes for SHA-384. |
is384 | Determines which function to use. This must be either 0 for SHA-512, or 1 for SHA-384. |
MBEDTLS_SHA384_C
is not defined, is384
must be 0
, or the function will return MBEDTLS_ERR_SHA512_BAD_INPUT_DATA.0
on success. void mbedtls_sha512_clone | ( | mbedtls_sha512_context * | dst, |
const mbedtls_sha512_context * | src | ||
) |
This function clones the state of a SHA-512 context.
dst | The destination context. This must be initialized. |
src | The context to clone. This must be initialized. |
int mbedtls_sha512_finish | ( | mbedtls_sha512_context * | ctx, |
unsigned char * | output | ||
) |
This function finishes the SHA-512 operation, and writes the result to the output buffer.
ctx | The SHA-512 context. This must be initialized and have a hash operation started. |
output | The SHA-384 or SHA-512 checksum result. This must be a writable buffer of length 64 bytes for SHA-512, 48 bytes for SHA-384. |
0
on success. void mbedtls_sha512_free | ( | mbedtls_sha512_context * | ctx | ) |
This function clears a SHA-512 context.
ctx | The SHA-512 context to clear. This may be NULL , in which case this function does nothing. If it is not NULL , it must point to an initialized SHA-512 context. |
void mbedtls_sha512_init | ( | mbedtls_sha512_context * | ctx | ) |
This function initializes a SHA-512 context.
ctx | The SHA-512 context to initialize. This must not be NULL . |
int mbedtls_sha512_self_test | ( | int | verbose | ) |
The SHA-384 or SHA-512 checkup routine.
0
on success. 1
on failure. int mbedtls_sha512_starts | ( | mbedtls_sha512_context * | ctx, |
int | is384 | ||
) |
This function starts a SHA-384 or SHA-512 checksum calculation.
ctx | The SHA-512 context to use. This must be initialized. |
is384 | Determines which function to use. This must be either 0 for SHA-512, or 1 for SHA-384. |
MBEDTLS_SHA384_C
is not defined, is384
must be 0
, or the function will return MBEDTLS_ERR_SHA512_BAD_INPUT_DATA.0
on success. int mbedtls_sha512_update | ( | mbedtls_sha512_context * | ctx, |
const unsigned char * | input, | ||
size_t | ilen | ||
) |
This function feeds an input buffer into an ongoing SHA-512 checksum calculation.
ctx | The SHA-512 context. This must be initialized and have a hash operation started. |
input | The buffer holding the input data. This must be a readable buffer of length ilen Bytes. |
ilen | The length of the input data in Bytes. |
0
on success.