1/*-
2 * Copyright (c) 2018, Juniper Networks, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
14 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
15 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
16 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
17 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
19 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25/*
26 */
27
28#ifdef USE_BEARSSL
29unsigned char * mpi2bn(unsigned char **pptr, size_t *sz);
30#else
31# include <openssl/bn.h>
32# include <openssl/rsa.h>
33# include <openssl/evp.h>
34
35BIGNUM * mpi2bn(unsigned char **pptr);
36#endif
37
38#define NEW(x) calloc(1,sizeof(x))
39
40#define OPENPGP_TAG_ISTAG	0200
41#define OPENPGP_TAG_ISNEW	0100
42#define OPENPGP_TAG_NEW_MASK	0077
43#define OPENPGP_TAG_OLD_MASK	0074
44#define OPENPGP_TAG_OLD_TYPE	0003
45
46typedef int (*decoder_t)(int, unsigned char **, int, void *);
47
48unsigned char * i2octets(int n, size_t i);
49int octets2i(unsigned char *ptr, size_t n);
50char * octets2hex(unsigned char *ptr, size_t n);
51int decode_tag(unsigned char *ptr, int *isnew, int *ltype);
52unsigned char * decode_mpi(unsigned char **pptr, size_t *sz);
53unsigned char * dearmor(char *pem, size_t nbytes, size_t *len);
54int decode_packet(int want, unsigned char **pptr, size_t nbytes,
55		  decoder_t decoder, void *decoder_arg);
56unsigned char * decode_subpacket(unsigned char **pptr, int *stag, int *sz);
57