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43 lines
895 B
C
43 lines
895 B
C
/* $OpenBSD: chacha.h,v 1.4 2016/08/27 04:04:56 guenther Exp $ */
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/*
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chacha-merged.c version 20080118
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D. J. Bernstein
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Public domain.
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*/
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#ifndef CHACHA_H
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#define CHACHA_H
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#include <sys/types.h>
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#include <crypto/chacha20/_chacha.h>
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#define CHACHA_MINKEYLEN 16
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#define CHACHA_NONCELEN 8
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#define CHACHA_CTRLEN 8
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#define CHACHA_STATELEN (CHACHA_NONCELEN+CHACHA_CTRLEN)
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#define CHACHA_BLOCKLEN 64
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#ifdef CHACHA_EMBED
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#define LOCAL static
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#else
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#define LOCAL
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#endif
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#ifdef CHACHA_NONCE0_CTR128
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#define CHACHA_UNUSED __unused
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#else
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#define CHACHA_UNUSED
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#endif
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LOCAL void chacha_keysetup(struct chacha_ctx *x, const u_char *k, u_int kbits);
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LOCAL void chacha_ivsetup(struct chacha_ctx *x, const u_char *iv CHACHA_UNUSED,
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const u_char *ctr);
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LOCAL void chacha_encrypt_bytes(struct chacha_ctx *x, const u_char *m,
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u_char *c, u_int bytes);
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#undef CHACHA_UNUSED
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#endif /* CHACHA_H */
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