Description

Provides cryptographic hash functions (SHA-1, SHA-224, SHA-256, SHA-384, SHA-512).

Provides API for one-way hashing functions.

Data Structures
struct	sl_se_hash_streaming_context_t
	Generic hash streaming context.

struct	sl_se_sha1_streaming_context_t
	SHA-1 streaming context.

struct	sl_se_sha224_streaming_context_t
	SHA-224 streaming context.

struct	sl_se_sha256_streaming_context_t
	SHA-256 streaming context.

struct	sl_se_sha384_streaming_context_t
	SHA-384 streaming context.

struct	sl_se_sha512_streaming_context_t
	SHA-512 streaming context.

Functions
sl_status_t	sl_se_hash ( sl_se_command_context_t cmd_ctx, sl_se_hash_type_t hash_type, const uint8_t message, unsigned int message_size, uint8_t *digest, size_t digest_len)
	Produce a message digest (a hash block) using the input data.

sl_status_t	sl_se_hash_sha1_starts ( sl_se_hash_streaming_context_t hash_ctx, sl_se_command_context_t cmd_ctx, sl_se_sha1_streaming_context_t *sha1_ctx)
	Prepare a SHA1 hash streaming command context object.

sl_status_t	sl_se_hash_sha224_starts ( sl_se_hash_streaming_context_t hash_ctx, sl_se_command_context_t cmd_ctx, sl_se_sha224_streaming_context_t *sha224_ctx)
	Prepare a SHA224 hash streaming command context object.

sl_status_t	sl_se_hash_sha256_starts ( sl_se_hash_streaming_context_t hash_ctx, sl_se_command_context_t cmd_ctx, sl_se_sha256_streaming_context_t *sha256_ctx)
	Prepare a SHA256 hash streaming command context object.

sl_status_t	sl_se_hash_sha384_starts ( sl_se_hash_streaming_context_t hash_ctx, sl_se_command_context_t cmd_ctx, sl_se_sha384_streaming_context_t *sha384_ctx)
	Prepare a SHA384 streaming command context object.

sl_status_t	sl_se_hash_sha512_starts ( sl_se_hash_streaming_context_t hash_ctx, sl_se_command_context_t cmd_ctx, sl_se_sha512_streaming_context_t *sha512_ctx)
	Prepare a SHA512 streaming command context object.

sl_status_t	sl_se_hash_starts ( sl_se_hash_streaming_context_t hash_ctx, sl_se_command_context_t cmd_ctx, sl_se_hash_type_t hash_type, void *hash_type_ctx)
	Prepare a hash streaming command context object.

sl_status_t	sl_se_hash_update ( sl_se_hash_streaming_context_t hash_ctx, const uint8_t input, size_t input_len)
	Feeds an input buffer into an ongoing hash computation.

sl_status_t	sl_se_hash_finish ( sl_se_hash_streaming_context_t hash_ctx, uint8_t digest_out, size_t digest_len)
	Finish a hash streaming operation and return the resulting hash digest.

Macros
#define	SL_SE_HASH_STREAMING_INIT_DEFAULT { NULL, 0, 0, NULL }
	Default streaming hash context.

#define	SL_SE_SHA1_STREAMING_INIT_DEFAULT { { 0 }, { 0 }, { 0 } }
	SHA1 streaming hash context.

#define	SL_SE_SHA224_STREAMING_INIT_DEFAULT { { 0 }, { 0 }, { 0 } }
	SHA224 streaming hash context.

#define	SL_SE_SHA256_STREAMING_INIT_DEFAULT { { 0 }, { 0 }, { 0 } }
	SHA256 streaming hash context.

#define	SL_SE_SHA384_STREAMING_INIT_DEFAULT { { 0 }, { 0 }, { 0 } }
	SHA384 streaming hash context.

#define	SL_SE_SHA512_STREAMING_INIT_DEFAULT { { 0 }, { 0 }, { 0 } }
	SHA512 streaming hash context.

Enumerations
enum	sl_se_hash_type_t { SL_SE_HASH_NONE , SL_SE_HASH_SHA1 , SL_SE_HASH_SHA224 , SL_SE_HASH_SHA256 , SL_SE_HASH_SHA384 , SL_SE_HASH_SHA512 }
	Hash algorithms.

Function Documentation

◆ sl_se_hash()

sl_status_t sl_se_hash	(	sl_se_command_context_t *	`cmd_ctx,`
		sl_se_hash_type_t	`hash_type,`
		const uint8_t *	`message,`
		unsigned int	`message_size,`
		uint8_t *	`digest,`
		size_t	`digest_len`
	)

Produce a message digest (a hash block) using the input data.

This function generates a message digest adhering to the given inputs. For instance, if the algorithm is chosen to be SHA-256, it will generate a 32 bytes message digest computed based on the input message. This function supports SHA-1, SHA-256 and SHA-512 algorithms.

Parameters

[in]	`cmd_ctx`	Pointer to an SE command context object.
[in]	`hash_type`	Which hashing algorithm to use.
[in]	`message`	Pointer to the message buffer to compute the hash/digest from.
[in]	`message_size`	Number of bytes in message.
[out]	`digest`	Pointer to block of memory to store the final digest.
[in]	`digest_len`	The length of the message digest (hash), must be at least the size of the corresponding hash type.

Returns: Status code, sl_status.h.

◆ sl_se_hash_sha1_starts()

sl_status_t sl_se_hash_sha1_starts	(	sl_se_hash_streaming_context_t *	`hash_ctx,`
		sl_se_command_context_t *	`cmd_ctx,`
		sl_se_sha1_streaming_context_t *	`sha1_ctx`
	)

Prepare a SHA1 hash streaming command context object.

Prepare a SHA1 hash streaming command context object to be used in subsequent calls to hash streaming functions sl_se_hash_update() and sl_se_hash_finish() .

Parameters

[in]	`hash_ctx`	Pointer to a generic hash streaming context object.
[in]	`cmd_ctx`	Pointer to an SE command context object.
[in]	`sha1_ctx`	Pointer to a SHA1 streaming context object.

Returns: Status code, sl_status.h.

◆ sl_se_hash_sha224_starts()

sl_status_t sl_se_hash_sha224_starts	(	sl_se_hash_streaming_context_t *	`hash_ctx,`
		sl_se_command_context_t *	`cmd_ctx,`
		sl_se_sha224_streaming_context_t *	`sha224_ctx`
	)

Prepare a SHA224 hash streaming command context object.

Prepare a SHA224 hash streaming command context object to be used in subsequent calls to hash streaming functions sl_se_hash_update() and sl_se_hash_finish() .

Parameters

[in]	`hash_ctx`	Pointer to a generic hash streaming context object.
[in]	`cmd_ctx`	Pointer to an SE command context object.
[in]	`sha224_ctx`	Pointer to a SHA224 streaming context object.

Returns: Status code, sl_status.h.

◆ sl_se_hash_sha256_starts()

sl_status_t sl_se_hash_sha256_starts	(	sl_se_hash_streaming_context_t *	`hash_ctx,`
		sl_se_command_context_t *	`cmd_ctx,`
		sl_se_sha256_streaming_context_t *	`sha256_ctx`
	)

Prepare a SHA256 hash streaming command context object.

Prepare a SHA256 hash streaming command context object to be used in subsequent calls to hash streaming functions sl_se_hash_update() and sl_se_hash_finish() .

Parameters

[in]	`hash_ctx`	Pointer to a generic hash streaming context object.
[in]	`cmd_ctx`	Pointer to an SE command context object.
[in]	`sha256_ctx`	Pointer to a SHA256 streaming context object.

Returns: Status code, sl_status.h.

◆ sl_se_hash_sha384_starts()

sl_status_t sl_se_hash_sha384_starts	(	sl_se_hash_streaming_context_t *	`hash_ctx,`
		sl_se_command_context_t *	`cmd_ctx,`
		sl_se_sha384_streaming_context_t *	`sha384_ctx`
	)

Prepare a SHA384 streaming command context object.

Prepare a SHA384 hash streaming command context object to be used in subsequent calls to hash streaming functions sl_se_hash_update() and sl_se_hash_finish() .

Parameters

[in]	`hash_ctx`	Pointer to a generic hash streaming context object.
[in]	`cmd_ctx`	Pointer to an SE command context object.
[in]	`sha384_ctx`	Pointer to a SHA384 streaming context object.

Returns: Status code, sl_status.h.

◆ sl_se_hash_sha512_starts()

sl_status_t sl_se_hash_sha512_starts	(	sl_se_hash_streaming_context_t *	`hash_ctx,`
		sl_se_command_context_t *	`cmd_ctx,`
		sl_se_sha512_streaming_context_t *	`sha512_ctx`
	)

Prepare a SHA512 streaming command context object.

Prepare a SHA512 hash streaming command context object to be used in subsequent calls to hash streaming functions sl_se_hash_update() and sl_se_hash_finish() .

Parameters

[in]	`hash_ctx`	Pointer to a generic hash streaming context object.
[in]	`cmd_ctx`	Pointer to an SE command context object.
[in]	`sha512_ctx`	Pointer to a SHA512 streaming context object.

Returns: Status code, sl_status.h.

◆ sl_se_hash_starts()

sl_status_t sl_se_hash_starts	(	sl_se_hash_streaming_context_t *	`hash_ctx,`
		sl_se_command_context_t *	`cmd_ctx,`
		sl_se_hash_type_t	`hash_type,`
		void *	`hash_type_ctx`
	)

Prepare a hash streaming command context object.

Prepare a hash (message digest) streaming command context object to be used in subsequent calls to hash streaming functions sl_se_hash_update() and sl_se_hash_finish() .

Parameters

[in]	`hash_ctx`	Pointer to a generic hash streaming context object.
[in]	`cmd_ctx`	Pointer to an SE command context object.
[in]	`hash_type`	Type of hash algoritm
[in]	`hash_type_ctx`	Pointer to a hash streaming context object specific to the hash type specified by `hash_type` .

Returns: Status code, sl_status.h.

◆ sl_se_hash_update()

sl_status_t sl_se_hash_update	(	sl_se_hash_streaming_context_t *	`hash_ctx,`
		const uint8_t *	`input,`
		size_t	`input_len`
	)

Feeds an input buffer into an ongoing hash computation.

This function is called between sl_se_hash_starts() and sl_se_hash_finish() . This function can be called repeatedly.

Parameters

[in]	`hash_ctx`	Pointer to a generic hash streaming context object.
[in]	`input`	Buffer holding the input data, must be at least `ilen` bytes wide.
[in]	`input_len`	The length of the input data in bytes.

Returns: Status code, sl_status.h.

◆ sl_se_hash_finish()

sl_status_t sl_se_hash_finish	(	sl_se_hash_streaming_context_t *	`hash_ctx,`
		uint8_t *	`digest_out,`
		size_t	`digest_len`
	)

Finish a hash streaming operation and return the resulting hash digest.

This function is called after sl_se_hash_update() .

Parameters

[in]	`hash_ctx`	Pointer to a generic hash streaming context object.
[out]	`digest_out`	Buffer for holding the message digest (hash), must be at least the size of the corresponding message digest type.
[in]	`digest_len`	The length of the message digest (hash), must be at least the size of the corresponding hash type.

Returns: Status code, sl_status.h.

Macro Definition Documentation

◆ SL_SE_HASH_STREAMING_INIT_DEFAULT

#define SL_SE_HASH_STREAMING_INIT_DEFAULT { NULL, 0, 0, NULL }

Default streaming hash context.

◆ SL_SE_SHA1_STREAMING_INIT_DEFAULT

#define SL_SE_SHA1_STREAMING_INIT_DEFAULT { { 0 }, { 0 }, { 0 } }

SHA1 streaming hash context.

◆ SL_SE_SHA224_STREAMING_INIT_DEFAULT

#define SL_SE_SHA224_STREAMING_INIT_DEFAULT { { 0 }, { 0 }, { 0 } }

SHA224 streaming hash context.

◆ SL_SE_SHA256_STREAMING_INIT_DEFAULT

#define SL_SE_SHA256_STREAMING_INIT_DEFAULT { { 0 }, { 0 }, { 0 } }

SHA256 streaming hash context.

◆ SL_SE_SHA384_STREAMING_INIT_DEFAULT

#define SL_SE_SHA384_STREAMING_INIT_DEFAULT { { 0 }, { 0 }, { 0 } }

SHA384 streaming hash context.

◆ SL_SE_SHA512_STREAMING_INIT_DEFAULT

#define SL_SE_SHA512_STREAMING_INIT_DEFAULT { { 0 }, { 0 }, { 0 } }

SHA512 streaming hash context.

Enumeration Type Documentation

◆ sl_se_hash_type_t

enum sl_se_hash_type_t

Hash algorithms.

Enumerator
SL_SE_HASH_NONE	No hash.
SL_SE_HASH_SHA1	SHA-1.
SL_SE_HASH_SHA224	SHA-224.
SL_SE_HASH_SHA256	SHA-256.
SL_SE_HASH_SHA384	SHA-384.
SL_SE_HASH_SHA512	SHA-512.

Hashing Secure Element Manager

Description

Data Structures

Functions

Macros

Enumerations

Function Documentation

◆ sl_se_hash()

◆ sl_se_hash_sha1_starts()

◆ sl_se_hash_sha224_starts()

◆ sl_se_hash_sha256_starts()

◆ sl_se_hash_sha384_starts()

◆ sl_se_hash_sha512_starts()

◆ sl_se_hash_starts()

◆ sl_se_hash_update()

◆ sl_se_hash_finish()

Macro Definition Documentation

◆ SL_SE_HASH_STREAMING_INIT_DEFAULT

◆ SL_SE_SHA1_STREAMING_INIT_DEFAULT

◆ SL_SE_SHA224_STREAMING_INIT_DEFAULT

◆ SL_SE_SHA256_STREAMING_INIT_DEFAULT

◆ SL_SE_SHA384_STREAMING_INIT_DEFAULT

◆ SL_SE_SHA512_STREAMING_INIT_DEFAULT

Enumeration Type Documentation

◆ sl_se_hash_type_t

Hashing
Secure Element Manager