fips_rsavtest.c revision 296465 
1/* fips_rsavtest.c */
2/*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 * 2005.
5 */
6/* ====================================================================
7 * Copyright (c) 2005 The OpenSSL Project.  All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in
18 *    the documentation and/or other materials provided with the
19 *    distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 *    software must display the following acknowledgment:
23 *    "This product includes software developed by the OpenSSL Project
24 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 *    endorse or promote products derived from this software without
28 *    prior written permission. For written permission, please contact
29 *    licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 *    nor may "OpenSSL" appear in their names without prior written
33 *    permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 *    acknowledgment:
37 *    "This product includes software developed by the OpenSSL Project
38 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com).  This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60#include <stdio.h>
61#include <ctype.h>
62#include <string.h>
63#include <openssl/bio.h>
64#include <openssl/evp.h>
65#include <openssl/hmac.h>
66#include <openssl/err.h>
67#include <openssl/x509v3.h>
68#include <openssl/bn.h>
69
70#ifndef OPENSSL_FIPS
71
72int main(int argc, char *argv[])
73{
74    printf("No FIPS RSA support\n");
75    return (0);
76}
77
78#else
79
80# include <openssl/rsa.h>
81
82# include "fips_utl.h"
83
84int rsa_test(FILE *out, FILE *in, int saltlen);
85static int rsa_printver(FILE *out,
86                        BIGNUM *n, BIGNUM *e,
87                        const EVP_MD *dgst,
88                        unsigned char *Msg, long Msglen,
89                        unsigned char *S, long Slen, int Saltlen);
90
91int main(int argc, char **argv)
92{
93    FILE *in = NULL, *out = NULL;
94
95    int ret = 1;
96    int Saltlen = -1;
97
98    if (!FIPS_mode_set(1)) {
99        do_print_errors();
100        goto end;
101    }
102
103    if ((argc > 2) && !strcmp("-saltlen", argv[1])) {
104        Saltlen = atoi(argv[2]);
105        if (Saltlen < 0) {
106            fprintf(stderr, "FATAL: Invalid salt length\n");
107            goto end;
108        }
109        argc -= 2;
110        argv += 2;
111    } else if ((argc > 1) && !strcmp("-x931", argv[1])) {
112        Saltlen = -2;
113        argc--;
114        argv++;
115    }
116
117    if (argc == 1)
118        in = stdin;
119    else
120        in = fopen(argv[1], "r");
121
122    if (argc < 2)
123        out = stdout;
124    else
125        out = fopen(argv[2], "w");
126
127    if (!in) {
128        fprintf(stderr, "FATAL input initialization error\n");
129        goto end;
130    }
131
132    if (!out) {
133        fprintf(stderr, "FATAL output initialization error\n");
134        goto end;
135    }
136
137    if (!rsa_test(out, in, Saltlen)) {
138        fprintf(stderr, "FATAL RSAVTEST file processing error\n");
139        goto end;
140    } else
141        ret = 0;
142
143 end:
144
145    if (ret)
146        do_print_errors();
147
148    if (in && (in != stdin))
149        fclose(in);
150    if (out && (out != stdout))
151        fclose(out);
152
153    return ret;
154
155}
156
157# define RSA_TEST_MAXLINELEN     10240
158
159int rsa_test(FILE *out, FILE *in, int Saltlen)
160{
161    char *linebuf, *olinebuf, *p, *q;
162    char *keyword, *value;
163    const EVP_MD *dgst = NULL;
164    BIGNUM *n = NULL, *e = NULL;
165    unsigned char *Msg = NULL, *S = NULL;
166    long Msglen, Slen;
167    int ret = 0;
168    int lnum = 0;
169
170    olinebuf = OPENSSL_malloc(RSA_TEST_MAXLINELEN);
171    linebuf = OPENSSL_malloc(RSA_TEST_MAXLINELEN);
172
173    if (!linebuf || !olinebuf)
174        goto error;
175
176    while (fgets(olinebuf, RSA_TEST_MAXLINELEN, in)) {
177        lnum++;
178        strcpy(linebuf, olinebuf);
179        keyword = linebuf;
180        /* Skip leading space */
181        while (isspace((unsigned char)*keyword))
182            keyword++;
183
184        /* Look for = sign */
185        p = strchr(linebuf, '=');
186
187        /*
188         * If no = or starts with [ (for [foo = bar] line) just copy
189         */
190        if (!p || *keyword == '[') {
191            if (fputs(olinebuf, out) < 0)
192                goto error;
193            continue;
194        }
195
196        q = p - 1;
197
198        /* Remove trailing space */
199        while (isspace((unsigned char)*q))
200            *q-- = 0;
201
202        *p = 0;
203        value = p + 1;
204
205        /* Remove leading space from value */
206        while (isspace((unsigned char)*value))
207            value++;
208
209        /* Remove trailing space from value */
210        p = value + strlen(value) - 1;
211
212        while (*p == '\n' || isspace((unsigned char)*p))
213            *p-- = 0;
214
215        if (!strcmp(keyword, "n")) {
216            if (!do_hex2bn(&n, value))
217                goto parse_error;
218        } else if (!strcmp(keyword, "e")) {
219            if (!do_hex2bn(&e, value))
220                goto parse_error;
221        } else if (!strcmp(keyword, "SHAAlg")) {
222            if (!strcmp(value, "SHA1"))
223                dgst = EVP_sha1();
224            else if (!strcmp(value, "SHA224"))
225                dgst = EVP_sha224();
226            else if (!strcmp(value, "SHA256"))
227                dgst = EVP_sha256();
228            else if (!strcmp(value, "SHA384"))
229                dgst = EVP_sha384();
230            else if (!strcmp(value, "SHA512"))
231                dgst = EVP_sha512();
232            else {
233                fprintf(stderr,
234                        "FATAL: unsupported algorithm \"%s\"\n", value);
235                goto parse_error;
236            }
237        } else if (!strcmp(keyword, "Msg")) {
238            if (Msg)
239                goto parse_error;
240            if (strlen(value) & 1)
241                *(--value) = '0';
242            Msg = hex2bin_m(value, &Msglen);
243            if (!Msg)
244                goto parse_error;
245        } else if (!strcmp(keyword, "S")) {
246            if (S)
247                goto parse_error;
248            if (strlen(value) & 1)
249                *(--value) = '0';
250            S = hex2bin_m(value, &Slen);
251            if (!S)
252                goto parse_error;
253        } else if (!strcmp(keyword, "Result"))
254            continue;
255        else
256            goto parse_error;
257
258        fputs(olinebuf, out);
259
260        if (n && e && Msg && S && dgst) {
261            if (!rsa_printver(out, n, e, dgst, Msg, Msglen, S, Slen, Saltlen))
262                goto error;
263            OPENSSL_free(Msg);
264            Msg = NULL;
265            OPENSSL_free(S);
266            S = NULL;
267        }
268
269    }
270
271    ret = 1;
272
273 error:
274
275    if (olinebuf)
276        OPENSSL_free(olinebuf);
277    if (linebuf)
278        OPENSSL_free(linebuf);
279    if (n)
280        BN_free(n);
281    if (e)
282        BN_free(e);
283
284    return ret;
285
286 parse_error:
287
288    fprintf(stderr, "FATAL parse error processing line %d\n", lnum);
289
290    goto error;
291
292}
293
294static int rsa_printver(FILE *out,
295                        BIGNUM *n, BIGNUM *e,
296                        const EVP_MD *dgst,
297                        unsigned char *Msg, long Msglen,
298                        unsigned char *S, long Slen, int Saltlen)
299{
300    int ret = 0, r;
301    /* Setup RSA and EVP_PKEY structures */
302    RSA *rsa_pubkey = NULL;
303    EVP_PKEY pk;
304    EVP_MD_CTX ctx;
305    unsigned char *buf = NULL;
306    rsa_pubkey = FIPS_rsa_new();
307    if (!rsa_pubkey)
308        goto error;
309    rsa_pubkey->n = BN_dup(n);
310    rsa_pubkey->e = BN_dup(e);
311    if (!rsa_pubkey->n || !rsa_pubkey->e)
312        goto error;
313    pk.type = EVP_PKEY_RSA;
314    pk.pkey.rsa = rsa_pubkey;
315
316    EVP_MD_CTX_init(&ctx);
317
318    if (Saltlen >= 0) {
319        M_EVP_MD_CTX_set_flags(&ctx,
320                               EVP_MD_CTX_FLAG_PAD_PSS | (Saltlen << 16));
321    } else if (Saltlen == -2)
322        M_EVP_MD_CTX_set_flags(&ctx, EVP_MD_CTX_FLAG_PAD_X931);
323    if (!EVP_VerifyInit_ex(&ctx, dgst, NULL))
324        goto error;
325    if (!EVP_VerifyUpdate(&ctx, Msg, Msglen))
326        goto error;
327
328    r = EVP_VerifyFinal(&ctx, S, Slen, &pk);
329
330    EVP_MD_CTX_cleanup(&ctx);
331
332    if (r < 0)
333        goto error;
334    ERR_clear_error();
335
336    if (r == 0)
337        fputs("Result = F\n", out);
338    else
339        fputs("Result = P\n", out);
340
341    ret = 1;
342
343 error:
344    if (rsa_pubkey)
345        FIPS_rsa_free(rsa_pubkey);
346    if (buf)
347        OPENSSL_free(buf);
348
349    return ret;
350}
351#endif
352