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Annotation of src/usr.bin/ssh/digest.h, Revision 1.1

1.1     ! djm         1: /* $OpenBSD$ */
        !             2: /*
        !             3:  * Copyright (c) 2013 Damien Miller <djm@mindrot.org>
        !             4:  *
        !             5:  * Permission to use, copy, modify, and distribute this software for any
        !             6:  * purpose with or without fee is hereby granted, provided that the above
        !             7:  * copyright notice and this permission notice appear in all copies.
        !             8:  *
        !             9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
        !            10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
        !            11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
        !            12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
        !            13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
        !            14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
        !            15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
        !            16:  */
        !            17:
        !            18: #ifndef _DIGEST_H
        !            19: #define _DIGEST_H
        !            20:
        !            21: /* Maximum digest output length */
        !            22: #define SSH_DIGEST_MAX_LENGTH  64
        !            23:
        !            24: /* Digest algorithms */
        !            25: #define SSH_DIGEST_MD5         0
        !            26: #define SSH_DIGEST_RIPEMD160   1
        !            27: #define SSH_DIGEST_SHA1                2
        !            28: #define SSH_DIGEST_SHA256      3
        !            29: #define SSH_DIGEST_SHA384      4
        !            30: #define SSH_DIGEST_SHA512      5
        !            31: #define SSH_DIGEST_MAX         6
        !            32:
        !            33: /* Returns the algorithm's digest length in bytes or 0 for invalid algorithm */
        !            34: size_t ssh_digest_bytes(int alg);
        !            35:
        !            36: /* One-shot API */
        !            37: int ssh_digest_memory(int alg, const void *m, size_t mlen,
        !            38:     u_char *d, size_t dlen)
        !            39:        __attribute__((__bounded__(__buffer__, 2, 3)))
        !            40:        __attribute__((__bounded__(__buffer__, 4, 5)));
        !            41: int ssh_digest_buffer(int alg, const Buffer *b, u_char *d, size_t dlen)
        !            42:        __attribute__((__bounded__(__buffer__, 3, 4)));
        !            43:
        !            44: /* Update API */
        !            45: struct ssh_digest_ctx;
        !            46: struct ssh_digest_ctx *ssh_digest_start(int alg);
        !            47: int ssh_digest_update(struct ssh_digest_ctx *ctx, const void *m, size_t mlen)
        !            48:        __attribute__((__bounded__(__buffer__, 2, 3)));
        !            49: int ssh_digest_update_buffer(struct ssh_digest_ctx *ctx, const Buffer *b);
        !            50: int ssh_digest_final(struct ssh_digest_ctx *ctx, u_char *d, size_t dlen)
        !            51:        __attribute__((__bounded__(__buffer__, 2, 3)));
        !            52: void ssh_digest_free(struct ssh_digest_ctx *ctx);
        !            53:
        !            54: #endif /* _DIGEST_H */
        !            55: