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1 | /* pmeth_fn.c */ |
2 | /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL | |
3 | * project 2006. | |
4 | */ | |
5 | /* ==================================================================== | |
6 | * Copyright (c) 2006 The OpenSSL Project. All rights reserved. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * | |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in | |
17 | * the documentation and/or other materials provided with the | |
18 | * distribution. | |
19 | * | |
20 | * 3. All advertising materials mentioning features or use of this | |
21 | * software must display the following acknowledgment: | |
22 | * "This product includes software developed by the OpenSSL Project | |
23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
24 | * | |
25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
26 | * endorse or promote products derived from this software without | |
27 | * prior written permission. For written permission, please contact | |
28 | * licensing@OpenSSL.org. | |
29 | * | |
30 | * 5. Products derived from this software may not be called "OpenSSL" | |
31 | * nor may "OpenSSL" appear in their names without prior written | |
32 | * permission of the OpenSSL Project. | |
33 | * | |
34 | * 6. Redistributions of any form whatsoever must retain the following | |
35 | * acknowledgment: | |
36 | * "This product includes software developed by the OpenSSL Project | |
37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
38 | * | |
39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
51 | * ==================================================================== | |
52 | * | |
53 | * This product includes cryptographic software written by Eric Young | |
54 | * (eay@cryptsoft.com). This product includes software written by Tim | |
55 | * Hudson (tjh@cryptsoft.com). | |
56 | * | |
57 | */ | |
58 | ||
59 | #include <stdio.h> | |
60 | #include <stdlib.h> | |
61 | #include <openssl/objects.h> | |
62 | #include "cryptlib.h" | |
63 | #include <openssl/evp.h> | |
64 | #include "evp_locl.h" | |
65 | ||
66 | int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) | |
67 | { | |
68 | int ret; | |
69 | if (!ctx || !ctx->pmeth || !ctx->pmeth->sign_init) | |
70 | { | |
71 | EVPerr(EVP_F_EVP_PKEY_SIGN_INIT, | |
72 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
73 | return -2; | |
74 | } | |
75 | ctx->operation = EVP_PKEY_OP_SIGN; | |
76 | ret = ctx->pmeth->sign_init(ctx, pkey); | |
77 | if (ret <= 0) | |
78 | ctx->operation = EVP_PKEY_OP_UNDEFINED; | |
79 | return ret; | |
80 | } | |
81 | ||
82 | int EVP_PKEY_sign(EVP_PKEY_CTX *ctx, | |
83 | unsigned char *sig, int *siglen, | |
84 | unsigned char *tbs, int tbslen) | |
85 | { | |
86 | if (!ctx || !ctx->pmeth || !ctx->pmeth->sign) | |
87 | { | |
88 | EVPerr(EVP_F_EVP_PKEY_SIGN, | |
89 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
90 | return -2; | |
91 | } | |
92 | if (ctx->operation != EVP_PKEY_OP_SIGN) | |
93 | { | |
94 | EVPerr(EVP_F_EVP_PKEY_SIGN, EVP_R_OPERATON_NOT_INITIALIZED); | |
95 | return -1; | |
96 | } | |
97 | return ctx->pmeth->sign(ctx, sig, siglen, tbs, tbslen); | |
98 | } | |
99 | ||
100 | int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) | |
101 | { | |
102 | int ret; | |
103 | if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_init) | |
104 | { | |
105 | EVPerr(EVP_F_EVP_PKEY_VERIFY_INIT, | |
106 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
107 | return -2; | |
108 | } | |
109 | ctx->operation = EVP_PKEY_OP_VERIFY; | |
110 | ret = ctx->pmeth->verify_init(ctx, pkey); | |
111 | if (ret <= 0) | |
112 | ctx->operation = EVP_PKEY_OP_UNDEFINED; | |
113 | return ret; | |
114 | } | |
115 | ||
116 | int EVP_PKEY_verify(EVP_PKEY_CTX *ctx, | |
117 | unsigned char *sig, int siglen, | |
118 | unsigned char *tbs, int tbslen) | |
119 | { | |
120 | if (!ctx || !ctx->pmeth || !ctx->pmeth->verify) | |
121 | { | |
122 | EVPerr(EVP_F_EVP_PKEY_VERIFY, | |
123 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
124 | return -2; | |
125 | } | |
126 | if (ctx->operation != EVP_PKEY_OP_VERIFY) | |
127 | { | |
128 | EVPerr(EVP_F_EVP_PKEY_VERIFY, EVP_R_OPERATON_NOT_INITIALIZED); | |
129 | return -1; | |
130 | } | |
131 | return ctx->pmeth->verify(ctx, sig, siglen, tbs, tbslen); | |
132 | } | |
133 | ||
134 | int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) | |
135 | { | |
136 | int ret; | |
137 | if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover_init) | |
138 | { | |
139 | EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT, | |
140 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
141 | return -2; | |
142 | } | |
143 | ctx->operation = EVP_PKEY_OP_VERIFYRECOVER; | |
144 | ret = ctx->pmeth->verify_recover_init(ctx, pkey); | |
145 | if (ret <= 0) | |
146 | ctx->operation = EVP_PKEY_OP_UNDEFINED; | |
147 | return ret; | |
148 | } | |
149 | ||
150 | int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx, | |
151 | unsigned char *rout, int *routlen, | |
152 | unsigned char *sig, int siglen) | |
153 | { | |
154 | if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover) | |
155 | { | |
156 | EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER, | |
157 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
158 | return -2; | |
159 | } | |
160 | if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER) | |
161 | { | |
162 | EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER, EVP_R_OPERATON_NOT_INITIALIZED); | |
163 | return -1; | |
164 | } | |
165 | return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen); | |
166 | } | |
167 | ||
168 | int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) | |
169 | { | |
170 | int ret; | |
171 | if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt_init) | |
172 | { | |
173 | EVPerr(EVP_F_EVP_PKEY_ENCRYPT_INIT, | |
174 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
175 | return -2; | |
176 | } | |
177 | ctx->operation = EVP_PKEY_OP_ENCRYPT; | |
178 | ret = ctx->pmeth->encrypt_init(ctx, pkey); | |
179 | if (ret <= 0) | |
180 | ctx->operation = EVP_PKEY_OP_UNDEFINED; | |
181 | return ret; | |
182 | } | |
183 | ||
184 | int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx, | |
185 | unsigned char *out, int *outlen, | |
186 | unsigned char *in, int inlen) | |
187 | { | |
188 | if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt) | |
189 | { | |
190 | EVPerr(EVP_F_EVP_PKEY_ENCRYPT, | |
191 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
192 | return -2; | |
193 | } | |
194 | if (ctx->operation != EVP_PKEY_OP_ENCRYPT) | |
195 | { | |
196 | EVPerr(EVP_F_EVP_PKEY_ENCRYPT, EVP_R_OPERATON_NOT_INITIALIZED); | |
197 | return -1; | |
198 | } | |
199 | return ctx->pmeth->encrypt(ctx, out, outlen, in, inlen); | |
200 | } | |
201 | ||
202 | int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) | |
203 | { | |
204 | int ret; | |
205 | if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt_init) | |
206 | { | |
207 | EVPerr(EVP_F_EVP_PKEY_DECRYPT_INIT, | |
208 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
209 | return -2; | |
210 | } | |
211 | ctx->operation = EVP_PKEY_OP_DECRYPT; | |
212 | ret = ctx->pmeth->decrypt_init(ctx, pkey); | |
213 | if (ret <= 0) | |
214 | ctx->operation = EVP_PKEY_OP_UNDEFINED; | |
215 | return ret; | |
216 | } | |
217 | ||
218 | int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx, | |
219 | unsigned char *out, int *outlen, | |
220 | unsigned char *in, int inlen) | |
221 | { | |
222 | if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt) | |
223 | { | |
224 | EVPerr(EVP_F_EVP_PKEY_DECRYPT, | |
225 | EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE); | |
226 | return -2; | |
227 | } | |
228 | if (ctx->operation != EVP_PKEY_OP_DECRYPT) | |
229 | { | |
230 | EVPerr(EVP_F_EVP_PKEY_DECRYPT, EVP_R_OPERATON_NOT_INITIALIZED); | |
231 | return -1; | |
232 | } | |
233 | return ctx->pmeth->decrypt(ctx, out, outlen, in, inlen); | |
234 | } | |
235 |