Differential D19409 Diff 54601 head/sys/dev/random/fortuna.c

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head/sys/dev/random/fortuna.c

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	* This implementation of Fortuna is based on the descriptions found in			* This implementation of Fortuna is based on the descriptions found in
	* ISBN 978-0-470-47424-2 "Cryptography Engineering" by Ferguson, Schneier			* ISBN 978-0-470-47424-2 "Cryptography Engineering" by Ferguson, Schneier
	* and Kohno ("FS&K").			* and Kohno ("FS&K").
	*/			*/

	#include <sys/cdefs.h>			#include <sys/cdefs.h>
	__FBSDID("$FreeBSD$");			__FBSDID("$FreeBSD$");

				#include <sys/param.h>
	#include <sys/limits.h>			#include <sys/limits.h>

	#ifdef _KERNEL			#ifdef _KERNEL
	#include <sys/param.h>
	#include <sys/fail.h>			#include <sys/fail.h>
	#include <sys/kernel.h>			#include <sys/kernel.h>
	#include <sys/lock.h>			#include <sys/lock.h>
	#include <sys/malloc.h>			#include <sys/malloc.h>
	#include <sys/mutex.h>			#include <sys/mutex.h>
	#include <sys/random.h>			#include <sys/random.h>
	#include <sys/sdt.h>			#include <sys/sdt.h>
	#include <sys/sysctl.h>			#include <sys/sysctl.h>
	#include <sys/systm.h>			#include <sys/systm.h>

	#include <machine/cpu.h>			#include <machine/cpu.h>

	#include <crypto/rijndael/rijndael-api-fst.h>
	#include <crypto/sha2/sha256.h>

	#include <dev/random/hash.h>
	#include <dev/random/randomdev.h>
	#include <dev/random/random_harvestq.h>
	#include <dev/random/uint128.h>
	#include <dev/random/fortuna.h>
	#else /* !_KERNEL */			#else /* !_KERNEL */
	#include <sys/param.h>
	#include <inttypes.h>			#include <inttypes.h>
	#include <stdbool.h>			#include <stdbool.h>
	#include <stdio.h>			#include <stdio.h>
	#include <stdlib.h>			#include <stdlib.h>
	#include <string.h>			#include <string.h>
	#include <threads.h>			#include <threads.h>

	#include "unit_test.h"			#include "unit_test.h"
				#endif /* _KERNEL */

	#include <crypto/rijndael/rijndael-api-fst.h>			#include <crypto/rijndael/rijndael-api-fst.h>
	#include <crypto/sha2/sha256.h>			#include <crypto/sha2/sha256.h>

	#include <dev/random/hash.h>			#include <dev/random/hash.h>
	#include <dev/random/randomdev.h>			#include <dev/random/randomdev.h>
				#ifdef _KERNEL
				#include <dev/random/random_harvestq.h>
				#endif
	#include <dev/random/uint128.h>			#include <dev/random/uint128.h>
	#include <dev/random/fortuna.h>			#include <dev/random/fortuna.h>
	#endif /* _KERNEL */

	/* Defined in FS&K */			/* Defined in FS&K */
	#define RANDOM_FORTUNA_NPOOLS 32 /* The number of accumulation pools */			#define RANDOM_FORTUNA_NPOOLS 32 /* The number of accumulation pools */
	#define RANDOM_FORTUNA_DEFPOOLSIZE 64 /* The default pool size/length for a (re)seed */			#define RANDOM_FORTUNA_DEFPOOLSIZE 64 /* The default pool size/length for a (re)seed */
	#define RANDOM_FORTUNA_MAX_READ (1 << 20) /* Max bytes in a single read */			#define RANDOM_FORTUNA_MAX_READ (1 << 20) /* Max bytes in a single read */

	/*			/*
	* The allowable range of RANDOM_FORTUNA_DEFPOOLSIZE. The default value is above.			* The allowable range of RANDOM_FORTUNA_DEFPOOLSIZE. The default value is above.
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