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4f40209aa4
[chacha.h cipher-chachapoly.h digest.h hmac.h kex.h kexc25519.c
[misc.h poly1305.h ssh-pkcs11.c]
use __bounded(...) attribute recently added to sys/cdefs.h instead of
longform __attribute__(__bounded(...));
for brevity and a warning free compilation with llvm/clang
36 lines
890 B
C
36 lines
890 B
C
/* $OpenBSD: chacha.h,v 1.2 2014/03/26 04:55:35 djm 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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struct chacha_ctx {
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u_int input[16];
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};
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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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void chacha_keysetup(struct chacha_ctx *x, const u_char *k, u_int kbits)
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__bounded((__minbytes__, 2, CHACHA_MINKEYLEN));
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void chacha_ivsetup(struct chacha_ctx *x, const u_char *iv, const u_char *ctr)
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__bounded((__minbytes__, 2, CHACHA_NONCELEN))
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__bounded((__minbytes__, 3, CHACHA_CTRLEN));
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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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__bounded((__buffer__, 2, 4))
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__bounded((__buffer__, 3, 4));
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#endif /* CHACHA_H */
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