Differential D19475 Diff 54828 head/sys/dev/random/hash.h

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head/sys/dev/random/hash.h

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	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.			* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	*			*
	* $FreeBSD$			* $FreeBSD$
	*/			*/

	#ifndef SYS_DEV_RANDOM_HASH_H_INCLUDED			#ifndef SYS_DEV_RANDOM_HASH_H_INCLUDED
	#define SYS_DEV_RANDOM_HASH_H_INCLUDED			#define SYS_DEV_RANDOM_HASH_H_INCLUDED

				#include <crypto/chacha20/_chacha.h>
	#include <dev/random/uint128.h>			#include <dev/random/uint128.h>

	/* Keys are formed from cipher blocks */			/* Keys are formed from cipher blocks */
	#define RANDOM_KEYSIZE 32 /* (in bytes) == 256 bits */			#define RANDOM_KEYSIZE 32 /* (in bytes) == 256 bits */
	#define RANDOM_KEYSIZE_WORDS (RANDOM_KEYSIZE/sizeof(uint32_t))			#define RANDOM_KEYSIZE_WORDS (RANDOM_KEYSIZE/sizeof(uint32_t))
	#define RANDOM_BLOCKSIZE 16 /* (in bytes) == 128 bits */			#define RANDOM_BLOCKSIZE 16 /* (in bytes) == 128 bits */
	#define RANDOM_BLOCKSIZE_WORDS (RANDOM_BLOCKSIZE/sizeof(uint32_t))			#define RANDOM_BLOCKSIZE_WORDS (RANDOM_BLOCKSIZE/sizeof(uint32_t))
	#define RANDOM_KEYS_PER_BLOCK (RANDOM_KEYSIZE/RANDOM_BLOCKSIZE)			#define RANDOM_KEYS_PER_BLOCK (RANDOM_KEYSIZE/RANDOM_BLOCKSIZE)

	/* The size of the zero block portion used to form H_d(m) */			/* The size of the zero block portion used to form H_d(m) */
	#define RANDOM_ZERO_BLOCKSIZE 64 /* (in bytes) == 512 zero bits */			#define RANDOM_ZERO_BLOCKSIZE 64 /* (in bytes) == 512 zero bits */

	struct randomdev_hash {			struct randomdev_hash {
	SHA256_CTX sha;			SHA256_CTX sha;
	};			};

	struct randomdev_key {			union randomdev_key {
				struct {
	keyInstance key; /* Key schedule */			keyInstance key; /* Key schedule */
	cipherInstance cipher; /* Rijndael internal */			cipherInstance cipher; /* Rijndael internal */
	};			};
				struct chacha_ctx chacha;
				};

				extern bool fortuna_chachamode;

	void randomdev_hash_init(struct randomdev_hash *);			void randomdev_hash_init(struct randomdev_hash *);
	void randomdev_hash_iterate(struct randomdev_hash , const void , size_t);			void randomdev_hash_iterate(struct randomdev_hash , const void , size_t);
	void randomdev_hash_finish(struct randomdev_hash , void );			void randomdev_hash_finish(struct randomdev_hash , void );
	void randomdev_encrypt_init(struct randomdev_key , const void );
	void randomdev_keystream(struct randomdev_key context, uint128_t , void *, u_int);			void randomdev_encrypt_init(union randomdev_key , const void );
				void randomdev_keystream(union randomdev_key context, uint128_t , void *, u_int);
				void randomdev_getkey(union randomdev_key , const void , size_t );

	#endif /* SYS_DEV_RANDOM_HASH_H_INCLUDED */			#endif /* SYS_DEV_RANDOM_HASH_H_INCLUDED */