summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/pem/pem_seal.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libcrypto/pem/pem_seal.c')
-rw-r--r--src/lib/libcrypto/pem/pem_seal.c190
1 files changed, 0 insertions, 190 deletions
diff --git a/src/lib/libcrypto/pem/pem_seal.c b/src/lib/libcrypto/pem/pem_seal.c
deleted file mode 100644
index 96687eb77f..0000000000
--- a/src/lib/libcrypto/pem/pem_seal.c
+++ /dev/null
@@ -1,190 +0,0 @@
1/* $OpenBSD: pem_seal.c,v 1.22 2015/09/10 15:56:25 jsing Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include <string.h>
61
62#include <openssl/opensslconf.h> /* for OPENSSL_NO_RSA */
63
64#ifndef OPENSSL_NO_RSA
65
66#include <openssl/err.h>
67#include <openssl/evp.h>
68#include <openssl/objects.h>
69#include <openssl/pem.h>
70#include <openssl/rsa.h>
71#include <openssl/x509.h>
72
73int
74PEM_SealInit(PEM_ENCODE_SEAL_CTX *ctx, EVP_CIPHER *type, EVP_MD *md_type,
75 unsigned char **ek, int *ekl, unsigned char *iv, EVP_PKEY **pubk, int npubk)
76{
77 unsigned char key[EVP_MAX_KEY_LENGTH];
78 int ret = -1;
79 int i, j, max = 0;
80 char *s = NULL;
81
82 for (i = 0; i < npubk; i++) {
83 if (pubk[i]->type != EVP_PKEY_RSA) {
84 PEMerr(PEM_F_PEM_SEALINIT, PEM_R_PUBLIC_KEY_NO_RSA);
85 goto err;
86 }
87 j = RSA_size(pubk[i]->pkey.rsa);
88 if (j > max)
89 max = j;
90 }
91 s = reallocarray(NULL, max, 2);
92 if (s == NULL) {
93 PEMerr(PEM_F_PEM_SEALINIT, ERR_R_MALLOC_FAILURE);
94 goto err;
95 }
96
97 EVP_EncodeInit(&ctx->encode);
98
99 EVP_MD_CTX_init(&ctx->md);
100 if (!EVP_SignInit(&ctx->md, md_type))
101 goto err;
102
103 EVP_CIPHER_CTX_init(&ctx->cipher);
104 ret = EVP_SealInit(&ctx->cipher, type, ek, ekl, iv, pubk, npubk);
105 if (ret <= 0)
106 goto err;
107
108 /* base64 encode the keys */
109 for (i = 0; i < npubk; i++) {
110 j = EVP_EncodeBlock((unsigned char *)s, ek[i],
111 RSA_size(pubk[i]->pkey.rsa));
112 ekl[i] = j;
113 memcpy(ek[i], s, j + 1);
114 }
115
116 ret = npubk;
117
118err:
119 free(s);
120 explicit_bzero(key, EVP_MAX_KEY_LENGTH);
121 return (ret);
122}
123
124void
125PEM_SealUpdate(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *out, int *outl,
126 unsigned char *in, int inl)
127{
128 unsigned char buffer[1600];
129 int i, j;
130
131 *outl = 0;
132 EVP_SignUpdate(&ctx->md, in, inl);
133 for (;;) {
134 if (inl <= 0)
135 break;
136 if (inl > 1200)
137 i = 1200;
138 else
139 i = inl;
140 EVP_EncryptUpdate(&ctx->cipher, buffer, &j, in, i);
141 EVP_EncodeUpdate(&ctx->encode, out, &j, buffer, j);
142 *outl += j;
143 out += j;
144 in += i;
145 inl -= i;
146 }
147}
148
149int
150PEM_SealFinal(PEM_ENCODE_SEAL_CTX *ctx, unsigned char *sig, int *sigl,
151 unsigned char *out, int *outl, EVP_PKEY *priv)
152{
153 unsigned char *s = NULL;
154 int ret = 0, j;
155 unsigned int i;
156
157 if (priv->type != EVP_PKEY_RSA) {
158 PEMerr(PEM_F_PEM_SEALFINAL, PEM_R_PUBLIC_KEY_NO_RSA);
159 goto err;
160 }
161 i = RSA_size(priv->pkey.rsa);
162 if (i < 100)
163 i = 100;
164 s = reallocarray(NULL, i, 2);
165 if (s == NULL) {
166 PEMerr(PEM_F_PEM_SEALFINAL, ERR_R_MALLOC_FAILURE);
167 goto err;
168 }
169
170 if (!EVP_EncryptFinal_ex(&ctx->cipher, s, (int *)&i))
171 goto err;
172 EVP_EncodeUpdate(&ctx->encode, out, &j, s, i);
173 *outl = j;
174 out += j;
175 EVP_EncodeFinal(&ctx->encode, out, &j);
176 *outl += j;
177
178 if (!EVP_SignFinal(&ctx->md, s, &i, priv))
179 goto err;
180 *sigl = EVP_EncodeBlock(sig, s, i);
181
182 ret = 1;
183
184err:
185 EVP_MD_CTX_cleanup(&ctx->md);
186 EVP_CIPHER_CTX_cleanup(&ctx->cipher);
187 free(s);
188 return (ret);
189}
190#endif
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-05-07 21:20:13 +0000