This file contains SHA-1 definitions and functions. More...

Macros
#define	MBEDTLS_ERR_SHA1_BAD_INPUT_DATA -0x0073

#define	MBEDTLS_ERR_SHA1_HW_ACCEL_FAILED -0x0035

Functions
int	mbedtls_internal_sha1_process (mbedtls_sha1_context *ctx, const unsigned char data[64])
	SHA-1 process data block (internal use only).

MBEDTLS_DEPRECATED void	mbedtls_sha1 (const unsigned char *input, size_t ilen, unsigned char output[20])
	This function calculates the SHA-1 checksum of a buffer.

void	mbedtls_sha1_clone (mbedtls_sha1_context dst, const mbedtls_sha1_context src)
	This function clones the state of a SHA-1 context.

MBEDTLS_DEPRECATED void	mbedtls_sha1_finish (mbedtls_sha1_context *ctx, unsigned char output[20])
	This function finishes the SHA-1 operation, and writes the result to the output buffer.

int	mbedtls_sha1_finish_ret (mbedtls_sha1_context *ctx, unsigned char output[20])
	This function finishes the SHA-1 operation, and writes the result to the output buffer.

void	mbedtls_sha1_free (mbedtls_sha1_context *ctx)
	This function clears a SHA-1 context.

void	mbedtls_sha1_init (mbedtls_sha1_context *ctx)
	This function initializes a SHA-1 context.

MBEDTLS_DEPRECATED void	mbedtls_sha1_process (mbedtls_sha1_context *ctx, const unsigned char data[64])
	SHA-1 process data block (internal use only).

int	mbedtls_sha1_ret (const unsigned char *input, size_t ilen, unsigned char output[20])
	This function calculates the SHA-1 checksum of a buffer.

int	mbedtls_sha1_self_test (int verbose)
	The SHA-1 checkup routine.

MBEDTLS_DEPRECATED void	mbedtls_sha1_starts (mbedtls_sha1_context *ctx)
	This function starts a SHA-1 checksum calculation.

int	mbedtls_sha1_starts_ret (mbedtls_sha1_context *ctx)
	This function starts a SHA-1 checksum calculation.

MBEDTLS_DEPRECATED void	mbedtls_sha1_update (mbedtls_sha1_context ctx, const unsigned char input, size_t ilen)
	This function feeds an input buffer into an ongoing SHA-1 checksum calculation.

int	mbedtls_sha1_update_ret (mbedtls_sha1_context ctx, const unsigned char input, size_t ilen)
	This function feeds an input buffer into an ongoing SHA-1 checksum calculation.

void	sha1_hmac (const unsigned char key, int32_t keylen, const unsigned char input, int32_t ilen, unsigned char output[20])
	Output = HMAC-SHA-1( hmac key, input buffer )

void	sha1_hmac_finish (sha1_hmac_context *ctx, unsigned char output[20])
	SHA-1 HMAC final digest.

void	sha1_hmac_update (sha1_hmac_context ctx, const unsigned char input, uint32_t ilen)
	SHA-1 HMAC process buffer.

Detailed Description

This file contains SHA-1 definitions and functions.

The Secure Hash Algorithm 1 (SHA-1) cryptographic hash function is defined in FIPS 180-4: Secure Hash Standard (SHS).

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Macro Definition Documentation

◆ MBEDTLS_ERR_SHA1_BAD_INPUT_DATA

#define MBEDTLS_ERR_SHA1_BAD_INPUT_DATA -0x0073

SHA-1 input data was malformed.

◆ MBEDTLS_ERR_SHA1_HW_ACCEL_FAILED

#define MBEDTLS_ERR_SHA1_HW_ACCEL_FAILED -0x0035

SHA-1 hardware accelerator failed

Function Documentation

◆ mbedtls_internal_sha1_process()

int mbedtls_internal_sha1_process	(	mbedtls_sha1_context *	ctx,
		const unsigned char	data[64] )

SHA-1 process data block (internal use only).

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Parameters

ctx	The SHA-1 context to use. This must be initialized.
data	The data block being processed. This must be a readable buffer of length `64` Bytes.

Returns: 0 on success.; A negative error code on failure.

◆ mbedtls_sha1()

MBEDTLS_DEPRECATED void mbedtls_sha1	(	const unsigned char *	input,
		size_t	ilen,
		unsigned char	output[20] )

This function calculates the SHA-1 checksum of a buffer.

           The function allocates the context, performs the
           calculation, and frees the context.

           The SHA-1 result is calculated as
           output = SHA-1(input buffer).

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Deprecated: Superseded by mbedtls_sha1_ret() in 2.7.0

Parameters

input	The buffer holding the input data. This must be a readable buffer of length `ilen` Bytes.
ilen	The length of the input data `input` in Bytes.
output	The SHA-1 checksum result. This must be a writable buffer of size `20` Bytes.

◆ mbedtls_sha1_clone()

void mbedtls_sha1_clone	(	mbedtls_sha1_context *	dst,
		const mbedtls_sha1_context *	src )

This function clones the state of a SHA-1 context.

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Parameters

dst	The SHA-1 context to clone to. This must be initialized.
src	The SHA-1 context to clone from. This must be initialized.

◆ mbedtls_sha1_finish()

MBEDTLS_DEPRECATED void mbedtls_sha1_finish	(	mbedtls_sha1_context *	ctx,
		unsigned char	output[20] )

This function finishes the SHA-1 operation, and writes the result to the output buffer.

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Deprecated: Superseded by mbedtls_sha1_finish_ret() in 2.7.0.

Parameters

ctx	The SHA-1 context. This must be initialized and have a hash operation started.
output	The SHA-1 checksum result. This must be a writable buffer of length `20` Bytes.

◆ mbedtls_sha1_finish_ret()

int mbedtls_sha1_finish_ret	(	mbedtls_sha1_context *	ctx,
		unsigned char	output[20] )

This function finishes the SHA-1 operation, and writes the result to the output buffer.

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Parameters

ctx	The SHA-1 context to use. This must be initialized and have a hash operation started.
output	The SHA-1 checksum result. This must be a writable buffer of length `20` Bytes.

Returns: 0 on success.; A negative error code on failure.

◆ mbedtls_sha1_free()

void mbedtls_sha1_free ( mbedtls_sha1_context * ctx )

This function clears a SHA-1 context.

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Parameters

ctx	The SHA-1 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-1 context.

◆ mbedtls_sha1_init()

void mbedtls_sha1_init ( mbedtls_sha1_context * ctx )

This function initializes a SHA-1 context.

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Parameters

ctx	The SHA-1 context to initialize. This must not be `NULL`.

◆ mbedtls_sha1_process()

MBEDTLS_DEPRECATED void mbedtls_sha1_process	(	mbedtls_sha1_context *	ctx,
		const unsigned char	data[64] )

SHA-1 process data block (internal use only).

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Deprecated: Superseded by mbedtls_internal_sha1_process() in 2.7.0.

Parameters

ctx	The SHA-1 context. This must be initialized.
data	The data block being processed. This must be a readable buffer of length `64` bytes.

◆ mbedtls_sha1_ret()

int mbedtls_sha1_ret	(	const unsigned char *	input,
		size_t	ilen,
		unsigned char	output[20] )

This function calculates the SHA-1 checksum of a buffer.

           The function allocates the context, performs the
           calculation, and frees the context.

           The SHA-1 result is calculated as
           output = SHA-1(input buffer).

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Parameters

input	The buffer holding the input data. This must be a readable buffer of length `ilen` Bytes.
ilen	The length of the input data `input` in Bytes.
output	The SHA-1 checksum result. This must be a writable buffer of length `20` Bytes.

Returns: 0 on success.; A negative error code on failure.

◆ mbedtls_sha1_self_test()

int mbedtls_sha1_self_test ( int verbose )

The SHA-1 checkup routine.

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Returns: 0 on success.; 1 on failure.

◆ mbedtls_sha1_starts()

MBEDTLS_DEPRECATED void mbedtls_sha1_starts ( mbedtls_sha1_context * ctx )

This function starts a SHA-1 checksum calculation.

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Deprecated: Superseded by mbedtls_sha1_starts_ret() in 2.7.0.

Parameters

ctx	The SHA-1 context to initialize. This must be initialized.

◆ mbedtls_sha1_starts_ret()

int mbedtls_sha1_starts_ret ( mbedtls_sha1_context * ctx )

This function starts a SHA-1 checksum calculation.

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Parameters

ctx	The SHA-1 context to initialize. This must be initialized.

Returns: 0 on success.; A negative error code on failure.

◆ mbedtls_sha1_update()

MBEDTLS_DEPRECATED void mbedtls_sha1_update	(	mbedtls_sha1_context *	ctx,
		const unsigned char *	input,
		size_t	ilen )

This function feeds an input buffer into an ongoing SHA-1 checksum calculation.

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Deprecated: Superseded by mbedtls_sha1_update_ret() in 2.7.0.

Parameters

ctx	The SHA-1 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 `input` in Bytes.

◆ mbedtls_sha1_update_ret()

int mbedtls_sha1_update_ret	(	mbedtls_sha1_context *	ctx,
		const unsigned char *	input,
		size_t	ilen )

This function feeds an input buffer into an ongoing SHA-1 checksum calculation.

Warning: SHA-1 is considered a weak message digest and its use constitutes a security risk. We recommend considering stronger message digests instead.

Parameters

ctx	The SHA-1 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 `input` in Bytes.

Returns: 0 on success.; A negative error code on failure.

◆ sha1_hmac()

void sha1_hmac	(	const unsigned char *	key,
		int32_t	keylen,
		const unsigned char *	input,
		int32_t	ilen,
		unsigned char	output[20] )

Output = HMAC-SHA-1( hmac key, input buffer )

Parameters

key	HMAC secret key
keylen	length of the HMAC key
input	buffer holding the data
ilen	length of the input data
output	HMAC-SHA-1 result

◆ sha1_hmac_finish()

void sha1_hmac_finish	(	sha1_hmac_context *	ctx,
		unsigned char	output[20] )

SHA-1 HMAC final digest.

Parameters

ctx	HMAC context
output	SHA-1 HMAC checksum result

◆ sha1_hmac_update()

void sha1_hmac_update	(	sha1_hmac_context *	ctx,
		const unsigned char *	input,
		uint32_t	ilen )

SHA-1 HMAC process buffer.

Parameters

ctx	HMAC context
input	buffer holding the data
ilen	length of the input data

Macros

Functions

Detailed Description

Macro Definition Documentation

◆ MBEDTLS_ERR_SHA1_BAD_INPUT_DATA

◆ MBEDTLS_ERR_SHA1_HW_ACCEL_FAILED

Function Documentation

◆ mbedtls_internal_sha1_process()

◆ mbedtls_sha1()

◆ mbedtls_sha1_clone()

◆ mbedtls_sha1_finish()

◆ mbedtls_sha1_finish_ret()

◆ mbedtls_sha1_free()

◆ mbedtls_sha1_init()

◆ mbedtls_sha1_process()

◆ mbedtls_sha1_ret()

◆ mbedtls_sha1_self_test()

◆ mbedtls_sha1_starts()

◆ mbedtls_sha1_starts_ret()

◆ mbedtls_sha1_update()

◆ mbedtls_sha1_update_ret()

◆ sha1_hmac()

◆ sha1_hmac_finish()

◆ sha1_hmac_update()