Annotation of src/usr.bin/ssh/chacha.h, Revision 1.3
1.2 djm 1: /* $OpenBSD: chacha.h,v 1.1 2013/11/21 00:45:44 djm Exp $ */
1.1 djm 2:
3: /*
4: chacha-merged.c version 20080118
5: D. J. Bernstein
6: Public domain.
7: */
8:
9: #ifndef CHACHA_H
10: #define CHACHA_H
11:
12: #include <sys/types.h>
13:
14: struct chacha_ctx {
15: u_int input[16];
16: };
17:
18: #define CHACHA_MINKEYLEN 16
19: #define CHACHA_NONCELEN 8
20: #define CHACHA_CTRLEN 8
21: #define CHACHA_STATELEN (CHACHA_NONCELEN+CHACHA_CTRLEN)
22: #define CHACHA_BLOCKLEN 64
23:
24: void chacha_keysetup(struct chacha_ctx *x, const u_char *k, u_int kbits)
1.3 ! djm 25: __attribute__((__bounded__(__minbytes__, 2, CHACHA_MINKEYLEN)));
1.1 djm 26: void chacha_ivsetup(struct chacha_ctx *x, const u_char *iv, const u_char *ctr)
1.3 ! djm 27: __attribute__((__bounded__(__minbytes__, 2, CHACHA_NONCELEN)))
! 28: __attribute__((__bounded__(__minbytes__, 3, CHACHA_CTRLEN)));
1.1 djm 29: void chacha_encrypt_bytes(struct chacha_ctx *x, const u_char *m,
30: u_char *c, u_int bytes)
1.3 ! djm 31: __attribute__((__bounded__(__buffer__, 2, 4)))
! 32: __attribute__((__bounded__(__buffer__, 3, 4)));
1.1 djm 33:
34: #endif /* CHACHA_H */
35: