Differential D21347 Diff 61102 head/sys/crypto/chacha20/chacha-sw.c

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	/* This file is in the public domain. */			/* This file is in the public domain. */

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

	#include <crypto/chacha20/chacha.h>			#include <crypto/chacha20/chacha.h>
	#include <opencrypto/xform_enc.h>			#include <opencrypto/xform_enc.h>

	static int			static int
	chacha20_xform_setkey(u_int8_t *sched, u_int8_t key, int len)			chacha20_xform_setkey(u_int8_t *sched, const u_int8_t key, int len)
	{			{
	struct chacha_ctx *ctx;			struct chacha_ctx *ctx;

	if (len != CHACHA_MINKEYLEN && len != 32)			if (len != CHACHA_MINKEYLEN && len != 32)
	return (EINVAL);			return (EINVAL);

	ctx = malloc(sizeof(*ctx), M_CRYPTO_DATA, M_NOWAIT \| M_ZERO);			ctx = malloc(sizeof(*ctx), M_CRYPTO_DATA, M_NOWAIT \| M_ZERO);
	sched = (void )ctx;			sched = (void )ctx;
	if (ctx == NULL)			if (ctx == NULL)
	return (ENOMEM);			return (ENOMEM);

	chacha_keysetup(ctx, key, len * 8);			chacha_keysetup(ctx, key, len * 8);
	return (0);			return (0);
	}			}

	static void			static void
	chacha20_xform_reinit(caddr_t key, u_int8_t *iv)			chacha20_xform_reinit(caddr_t key, const u_int8_t *iv)
	{			{
	struct chacha_ctx *ctx;			struct chacha_ctx *ctx;

	ctx = (void *)key;			ctx = (void *)key;
	chacha_ivsetup(ctx, iv + 8, iv);			chacha_ivsetup(ctx, iv + 8, iv);
	}			}

	static void			static void
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