macSkein.h File Reference

Function that provide Skein MAC support. More...

#include <crypto/skeinApi.h>

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Functions
void	macSkein (uint8_t *key, int32_t key_length, const uint8_t *data, uint32_t data_length, uint8_t *mac, int32_t mac_length, SkeinSize_t skeinSize)
	Compute Skein MAC. More...
void	macSkein (uint8_t *key, int32_t key_length, const uint8_t *data[], uint32_t data_length[], uint8_t *mac, int32_t mac_length, SkeinSize_t skeinSize)
	Compute Skein MAC over several data cunks. More...
void *	createSkeinMacContext (uint8_t *key, int32_t key_length, int32_t mac_length, SkeinSize_t skeinSize)
	Create and initialize a Skein MAC context. More...
void	macSkeinCtx (void *ctx, const uint8_t *data, uint32_t data_length, uint8_t *mac)
	Compute Skein MAC. More...
void	macSkeinCtx (void *ctx, const uint8_t *data[], uint32_t data_length[], uint8_t *mac)
	Compute Skein MAC over several data cunks. More...
void	freeSkeinMacContext (void *ctx)
	Free Skein MAC context. More...

Detailed Description

Function that provide Skein MAC support.

Functions to compute Skein MAC.

Definition in file macSkein.h.

Function Documentation

void* createSkeinMacContext	(	uint8_t *	key,
		int32_t	key_length,
		int32_t	mac_length,
		SkeinSize_t	skeinSize
	)

Create and initialize a Skein MAC context.

An application uses this context to hash several data with on Skein MAC Context with the same key, key length and mac length

Parameters

key	The MAC key.
key_length	Lenght of the MAC key in bytes
mac_length	Integer that contains the length of the MAC in bits (not bytes).
skeinSize	The Skein size to use.

Returns

Returns a pointer to the initialized context

Definition at line 51 of file macSkein.cpp.

void freeSkeinMacContext

(

void *

ctx

)

Free Skein MAC context.

Parameters

ctx	a pointer to Skein MAC context

Definition at line 85 of file macSkein.cpp.

void macSkein	(	uint8_t *	key,
		int32_t	key_length,
		const uint8_t *	data,
		uint32_t	data_length,
		uint8_t *	mac,
		int32_t	mac_length,
		SkeinSize_t	skeinSize
	)

Compute Skein MAC.

This functions takes one data chunk and computes its Skein MAC.

Parameters

key	The MAC key.
key_length	Lneght of the MAC key in bytes
data	Points to the data chunk.
data_length	Length of the data in bytes
mac	Points to a buffer that receives the computed digest.
mac_length	Integer that contains the length of the MAC in bits (not bytes).
skeinSize	The Skein size to use.

Definition at line 21 of file macSkein.cpp.

void macSkein	(	uint8_t *	key,
		int32_t	key_length,
		const uint8_t *	data[],
		uint32_t	data_length[],
		uint8_t *	mac,
		int32_t	mac_length,
		SkeinSize_t	skeinSize
	)

Compute Skein MAC over several data cunks.

This functions takes several data chunk and computes the Skein MAC.

Parameters

key	The MAC key.
key_length	Lneght of the MAC key in bytes
data	Points to an array of pointers that point to the data chunks. A NULL pointer in an array element terminates the data chunks.
data_length	Points to an array of integers that hold the length of each data chunk.
mac	Points to a buffer that receives the computed digest.
mac_length	Integer that contains the length of the MAC in bits (not bytes).
skeinSize	The Skein size to use.

Definition at line 34 of file macSkein.cpp.

void macSkeinCtx	(	void *	ctx,
		const uint8_t *	data,
		uint32_t	data_length,
		uint8_t *	mac
	)

Compute Skein MAC.

This functions takes one data chunk and computes its Skein MAC.

Parameters

ctx	Pointer to initialized Skein MAC context
data	Points to the data chunk.
data_length	Length of the data in bytes
mac	Points to a buffer that receives the computed digest.

Definition at line 61 of file macSkein.cpp.

void macSkeinCtx	(	void *	ctx,
		const uint8_t *	data[],
		uint32_t	data_length[],
		uint8_t *	mac
	)

Compute Skein MAC over several data cunks.

This functions takes several data chunk and computes the SHA1 HAMAC.

Parameters

ctx	Pointer to initialized Skein MAC context
data	Points to an array of pointers that point to the data chunks. A NULL pointer in an array element terminates the data chunks.
data_length	Points to an array of integers that hold the length of each data chunk.
mac	Points to a buffer that receives the computed digest.

Definition at line 71 of file macSkein.cpp.