e4c09455f1aa5db83b066cec00d3081150bef5fe
[openssl.git] / crypto / ecdh / ecdhtest.c
1 /* crypto/ecdh/ecdhtest.c */
2 /* ====================================================================
3  * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
4  *
5  * The Elliptic Curve Public-Key Crypto Library (ECC Code) included
6  * herein is developed by SUN MICROSYSTEMS, INC., and is contributed
7  * to the OpenSSL project.
8  *
9  * The ECC Code is licensed pursuant to the OpenSSL open source
10  * license provided below.
11  *
12  * The ECDH software is originally written by Douglas Stebila of
13  * Sun Microsystems Laboratories.
14  *
15  */
16 /* ====================================================================
17  * Copyright (c) 1998-2003 The OpenSSL Project.  All rights reserved.
18  *
19  * Redistribution and use in source and binary forms, with or without
20  * modification, are permitted provided that the following conditions
21  * are met:
22  *
23  * 1. Redistributions of source code must retain the above copyright
24  *    notice, this list of conditions and the following disclaimer. 
25  *
26  * 2. Redistributions in binary form must reproduce the above copyright
27  *    notice, this list of conditions and the following disclaimer in
28  *    the documentation and/or other materials provided with the
29  *    distribution.
30  *
31  * 3. All advertising materials mentioning features or use of this
32  *    software must display the following acknowledgment:
33  *    "This product includes software developed by the OpenSSL Project
34  *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
35  *
36  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
37  *    endorse or promote products derived from this software without
38  *    prior written permission. For written permission, please contact
39  *    openssl-core@openssl.org.
40  *
41  * 5. Products derived from this software may not be called "OpenSSL"
42  *    nor may "OpenSSL" appear in their names without prior written
43  *    permission of the OpenSSL Project.
44  *
45  * 6. Redistributions of any form whatsoever must retain the following
46  *    acknowledgment:
47  *    "This product includes software developed by the OpenSSL Project
48  *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
49  *
50  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
51  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
53  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
54  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
56  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
57  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
58  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
59  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
60  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
61  * OF THE POSSIBILITY OF SUCH DAMAGE.
62  * ====================================================================
63  *
64  * This product includes cryptographic software written by Eric Young
65  * (eay@cryptsoft.com).  This product includes software written by Tim
66  * Hudson (tjh@cryptsoft.com).
67  *
68  */
69
70 #include <stdio.h>
71 #include <stdlib.h>
72 #include <string.h>
73
74 #include "../e_os.h"
75
76 #include <openssl/opensslconf.h>        /* for OPENSSL_NO_ECDH */
77 #include <openssl/crypto.h>
78 #include <openssl/bio.h>
79 #include <openssl/bn.h>
80 #include <openssl/objects.h>
81 #include <openssl/rand.h>
82 #include <openssl/sha.h>
83 #include <openssl/err.h>
84
85 #ifdef OPENSSL_NO_ECDH
86 int main(int argc, char *argv[])
87 {
88     printf("No ECDH support\n");
89     return(0);
90 }
91 #else
92 #include <openssl/ec.h>
93 #include <openssl/ecdh.h>
94
95 #ifdef OPENSSL_SYS_WIN16
96 #define MS_CALLBACK     _far _loadds
97 #else
98 #define MS_CALLBACK
99 #endif
100
101 #if 0
102 static void MS_CALLBACK cb(int p, int n, void *arg);
103 #endif
104
105 static const char rnd_seed[] = "string to make the random number generator think it has entropy";
106
107
108 static const int KDF1_SHA1_len = 20;
109 static void *KDF1_SHA1(const void *in, size_t inlen, void *out, size_t *outlen)
110         {
111 #ifndef OPENSSL_NO_SHA
112         if (*outlen < SHA_DIGEST_LENGTH)
113                 return NULL;
114         else
115                 *outlen = SHA_DIGEST_LENGTH;
116         return SHA1(in, inlen, out);
117 #else
118         return NULL;
119 #endif
120         }
121
122
123 static int test_ecdh_curve(int nid, const char *text, BN_CTX *ctx, BIO *out)
124         {
125         EC_KEY *a=NULL;
126         EC_KEY *b=NULL;
127         BIGNUM *x_a=NULL, *y_a=NULL,
128                *x_b=NULL, *y_b=NULL;
129         char buf[12];
130         unsigned char *abuf=NULL,*bbuf=NULL;
131         int i,alen,blen,aout,bout,ret=0;
132         const EC_GROUP *group;
133
134         a = EC_KEY_new_by_curve_name(nid);
135         b = EC_KEY_new_by_curve_name(nid);
136         if (a == NULL || b == NULL)
137                 goto err;
138
139         group = EC_KEY_get0_group(a);
140
141         if ((x_a=BN_new()) == NULL) goto err;
142         if ((y_a=BN_new()) == NULL) goto err;
143         if ((x_b=BN_new()) == NULL) goto err;
144         if ((y_b=BN_new()) == NULL) goto err;
145
146         BIO_puts(out,"Testing key generation with ");
147         BIO_puts(out,text);
148 #ifdef NOISY
149         BIO_puts(out,"\n");
150 #else
151         (void)BIO_flush(out);
152 #endif
153
154         if (!EC_KEY_generate_key(a)) goto err;
155         
156         if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field) 
157                 {
158                 if (!EC_POINT_get_affine_coordinates_GFp(group,
159                         EC_KEY_get0_public_key(a), x_a, y_a, ctx)) goto err;
160                 }
161 #ifndef OPENSSL_NO_EC2M
162         else
163                 {
164                 if (!EC_POINT_get_affine_coordinates_GF2m(group,
165                         EC_KEY_get0_public_key(a), x_a, y_a, ctx)) goto err;
166                 }
167 #endif
168 #ifdef NOISY
169         BIO_puts(out,"  pri 1=");
170         BN_print(out,a->priv_key);
171         BIO_puts(out,"\n  pub 1=");
172         BN_print(out,x_a);
173         BIO_puts(out,",");
174         BN_print(out,y_a);
175         BIO_puts(out,"\n");
176 #else
177         BIO_printf(out," .");
178         (void)BIO_flush(out);
179 #endif
180
181         if (!EC_KEY_generate_key(b)) goto err;
182
183         if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) == NID_X9_62_prime_field) 
184                 {
185                 if (!EC_POINT_get_affine_coordinates_GFp(group, 
186                         EC_KEY_get0_public_key(b), x_b, y_b, ctx)) goto err;
187                 }
188 #ifndef OPENSSL_NO_EC2M
189         else
190                 {
191                 if (!EC_POINT_get_affine_coordinates_GF2m(group, 
192                         EC_KEY_get0_public_key(b), x_b, y_b, ctx)) goto err;
193                 }
194 #endif
195
196 #ifdef NOISY
197         BIO_puts(out,"  pri 2=");
198         BN_print(out,b->priv_key);
199         BIO_puts(out,"\n  pub 2=");
200         BN_print(out,x_b);
201         BIO_puts(out,",");
202         BN_print(out,y_b);
203         BIO_puts(out,"\n");
204 #else
205         BIO_printf(out,".");
206         (void)BIO_flush(out);
207 #endif
208
209         alen=KDF1_SHA1_len;
210         abuf=(unsigned char *)OPENSSL_malloc(alen);
211         aout=ECDH_compute_key(abuf,alen,EC_KEY_get0_public_key(b),a,KDF1_SHA1);
212
213 #ifdef NOISY
214         BIO_puts(out,"  key1 =");
215         for (i=0; i<aout; i++)
216                 {
217                 sprintf(buf,"%02X",abuf[i]);
218                 BIO_puts(out,buf);
219                 }
220         BIO_puts(out,"\n");
221 #else
222         BIO_printf(out,".");
223         (void)BIO_flush(out);
224 #endif
225
226         blen=KDF1_SHA1_len;
227         bbuf=(unsigned char *)OPENSSL_malloc(blen);
228         bout=ECDH_compute_key(bbuf,blen,EC_KEY_get0_public_key(a),b,KDF1_SHA1);
229
230 #ifdef NOISY
231         BIO_puts(out,"  key2 =");
232         for (i=0; i<bout; i++)
233                 {
234                 sprintf(buf,"%02X",bbuf[i]);
235                 BIO_puts(out,buf);
236                 }
237         BIO_puts(out,"\n");
238 #else
239         BIO_printf(out,".");
240         (void)BIO_flush(out);
241 #endif
242
243         if ((aout < 4) || (bout != aout) || (memcmp(abuf,bbuf,aout) != 0))
244                 {
245 #ifndef NOISY
246                 BIO_printf(out, " failed\n\n");
247                 BIO_printf(out, "key a:\n");
248                 BIO_printf(out, "private key: ");
249                 BN_print(out, EC_KEY_get0_private_key(a));
250                 BIO_printf(out, "\n");
251                 BIO_printf(out, "public key (x,y): ");
252                 BN_print(out, x_a);
253                 BIO_printf(out, ",");
254                 BN_print(out, y_a);
255                 BIO_printf(out, "\nkey b:\n");
256                 BIO_printf(out, "private key: ");
257                 BN_print(out, EC_KEY_get0_private_key(b));
258                 BIO_printf(out, "\n");
259                 BIO_printf(out, "public key (x,y): ");
260                 BN_print(out, x_b);
261                 BIO_printf(out, ",");
262                 BN_print(out, y_b);
263                 BIO_printf(out, "\n");
264                 BIO_printf(out, "generated key a: ");
265                 for (i=0; i<bout; i++)
266                         {
267                         sprintf(buf, "%02X", bbuf[i]);
268                         BIO_puts(out, buf);
269                         }
270                 BIO_printf(out, "\n");
271                 BIO_printf(out, "generated key b: ");
272                 for (i=0; i<aout; i++)
273                         {
274                         sprintf(buf, "%02X", abuf[i]);
275                         BIO_puts(out,buf);
276                         }
277                 BIO_printf(out, "\n");
278 #endif
279                 fprintf(stderr,"Error in ECDH routines\n");
280                 ret=0;
281                 }
282         else
283                 {
284 #ifndef NOISY
285                 BIO_printf(out, " ok\n");
286 #endif
287                 ret=1;
288                 }
289 err:
290         ERR_print_errors_fp(stderr);
291
292         if (abuf != NULL) OPENSSL_free(abuf);
293         if (bbuf != NULL) OPENSSL_free(bbuf);
294         if (x_a) BN_free(x_a);
295         if (y_a) BN_free(y_a);
296         if (x_b) BN_free(x_b);
297         if (y_b) BN_free(y_b);
298         if (b) EC_KEY_free(b);
299         if (a) EC_KEY_free(a);
300         return(ret);
301         }
302
303 /* Keys and shared secrets from RFC 7027 */
304
305 static const unsigned char bp256_da[] = {
306         0x81,0xDB,0x1E,0xE1,0x00,0x15,0x0F,0xF2,0xEA,0x33,0x8D,0x70,
307         0x82,0x71,0xBE,0x38,0x30,0x0C,0xB5,0x42,0x41,0xD7,0x99,0x50,
308         0xF7,0x7B,0x06,0x30,0x39,0x80,0x4F,0x1D
309 };
310
311 static const unsigned char bp256_db[] = {
312         0x55,0xE4,0x0B,0xC4,0x1E,0x37,0xE3,0xE2,0xAD,0x25,0xC3,0xC6,
313         0x65,0x45,0x11,0xFF,0xA8,0x47,0x4A,0x91,0xA0,0x03,0x20,0x87,
314         0x59,0x38,0x52,0xD3,0xE7,0xD7,0x6B,0xD3
315 };
316
317 static const unsigned char bp256_Z[] = {
318         0x89,0xAF,0xC3,0x9D,0x41,0xD3,0xB3,0x27,0x81,0x4B,0x80,0x94,
319         0x0B,0x04,0x25,0x90,0xF9,0x65,0x56,0xEC,0x91,0xE6,0xAE,0x79,
320         0x39,0xBC,0xE3,0x1F,0x3A,0x18,0xBF,0x2B
321 };
322
323 static const unsigned char bp384_da[] = {
324         0x1E,0x20,0xF5,0xE0,0x48,0xA5,0x88,0x6F,0x1F,0x15,0x7C,0x74,
325         0xE9,0x1B,0xDE,0x2B,0x98,0xC8,0xB5,0x2D,0x58,0xE5,0x00,0x3D,
326         0x57,0x05,0x3F,0xC4,0xB0,0xBD,0x65,0xD6,0xF1,0x5E,0xB5,0xD1,
327         0xEE,0x16,0x10,0xDF,0x87,0x07,0x95,0x14,0x36,0x27,0xD0,0x42
328 };
329
330 static const unsigned char bp384_db[] = {
331         0x03,0x26,0x40,0xBC,0x60,0x03,0xC5,0x92,0x60,0xF7,0x25,0x0C,
332         0x3D,0xB5,0x8C,0xE6,0x47,0xF9,0x8E,0x12,0x60,0xAC,0xCE,0x4A,
333         0xCD,0xA3,0xDD,0x86,0x9F,0x74,0xE0,0x1F,0x8B,0xA5,0xE0,0x32,
334         0x43,0x09,0xDB,0x6A,0x98,0x31,0x49,0x7A,0xBA,0xC9,0x66,0x70
335 };
336
337 static const unsigned char bp384_Z[] = {
338         0x0B,0xD9,0xD3,0xA7,0xEA,0x0B,0x3D,0x51,0x9D,0x09,0xD8,0xE4,
339         0x8D,0x07,0x85,0xFB,0x74,0x4A,0x6B,0x35,0x5E,0x63,0x04,0xBC,
340         0x51,0xC2,0x29,0xFB,0xBC,0xE2,0x39,0xBB,0xAD,0xF6,0x40,0x37,
341         0x15,0xC3,0x5D,0x4F,0xB2,0xA5,0x44,0x4F,0x57,0x5D,0x4F,0x42
342 };
343
344 static const unsigned char bp512_da[] = {
345         0x16,0x30,0x2F,0xF0,0xDB,0xBB,0x5A,0x8D,0x73,0x3D,0xAB,0x71,
346         0x41,0xC1,0xB4,0x5A,0xCB,0xC8,0x71,0x59,0x39,0x67,0x7F,0x6A,
347         0x56,0x85,0x0A,0x38,0xBD,0x87,0xBD,0x59,0xB0,0x9E,0x80,0x27,
348         0x96,0x09,0xFF,0x33,0x3E,0xB9,0xD4,0xC0,0x61,0x23,0x1F,0xB2,
349         0x6F,0x92,0xEE,0xB0,0x49,0x82,0xA5,0xF1,0xD1,0x76,0x4C,0xAD,
350         0x57,0x66,0x54,0x22
351 };
352
353 static const unsigned char bp512_db[] = {
354         0x23,0x0E,0x18,0xE1,0xBC,0xC8,0x8A,0x36,0x2F,0xA5,0x4E,0x4E,
355         0xA3,0x90,0x20,0x09,0x29,0x2F,0x7F,0x80,0x33,0x62,0x4F,0xD4,
356         0x71,0xB5,0xD8,0xAC,0xE4,0x9D,0x12,0xCF,0xAB,0xBC,0x19,0x96,
357         0x3D,0xAB,0x8E,0x2F,0x1E,0xBA,0x00,0xBF,0xFB,0x29,0xE4,0xD7,
358         0x2D,0x13,0xF2,0x22,0x45,0x62,0xF4,0x05,0xCB,0x80,0x50,0x36,
359         0x66,0xB2,0x54,0x29
360 };
361
362
363 static const unsigned char bp512_Z[] = {
364         0xA7,0x92,0x70,0x98,0x65,0x5F,0x1F,0x99,0x76,0xFA,0x50,0xA9,
365         0xD5,0x66,0x86,0x5D,0xC5,0x30,0x33,0x18,0x46,0x38,0x1C,0x87,
366         0x25,0x6B,0xAF,0x32,0x26,0x24,0x4B,0x76,0xD3,0x64,0x03,0xC0,
367         0x24,0xD7,0xBB,0xF0,0xAA,0x08,0x03,0xEA,0xFF,0x40,0x5D,0x3D,
368         0x24,0xF1,0x1A,0x9B,0x5C,0x0B,0xEF,0x67,0x9F,0xE1,0x45,0x4B,
369         0x21,0xC4,0xCD,0x1F
370 };
371
372 /* Given private value and NID, create EC_KEY structure */
373
374 static EC_KEY *mk_eckey(int nid, const unsigned char *p, size_t plen)
375         {
376         int ok = 0;
377         EC_KEY *k = NULL;
378         BIGNUM *priv = NULL;
379         EC_POINT *pub = NULL;
380         const EC_GROUP *grp;
381         k = EC_KEY_new_by_curve_name(nid);
382         if (!k)
383                 goto err;
384         priv = BN_bin2bn(p, plen, NULL);
385         if (!priv)
386                 goto err;
387         if (!EC_KEY_set_private_key(k, priv))
388                 goto err;
389         grp = EC_KEY_get0_group(k);
390         pub = EC_POINT_new(grp);
391         if (!pub)
392                 goto err;
393         if (!EC_POINT_mul(grp, pub, priv, NULL, NULL, NULL))
394                 goto err;
395         if (!EC_KEY_set_public_key(k, pub))
396                 goto err;
397         ok = 1;
398         err:
399         if (priv)
400                 BN_clear_free(priv);
401         if (pub)
402                 EC_POINT_free(pub);
403         if (ok)
404                 return k;
405         else if (k)
406                 EC_KEY_free(k);
407         return NULL;
408         }
409
410 /* Known answer test: compute shared secret and check it matches
411  * expected value.
412  */
413
414 static int ecdh_kat(BIO *out, const char *cname, int nid,
415                 const unsigned char *k1, size_t k1_len,
416                 const unsigned char *k2, size_t k2_len,
417                 const unsigned char *Z, size_t Zlen)
418         {
419         int rv = 0;
420         EC_KEY *key1 = NULL, *key2 = NULL;
421         unsigned char *Ztmp = NULL;
422         size_t Ztmplen;
423         BIO_puts(out, "Testing ECDH shared secret with ");
424         BIO_puts(out, cname);
425         key1 = mk_eckey(nid, k1, k1_len);
426         key2 = mk_eckey(nid, k2, k2_len);
427         if (!key1 || !key2)
428                 goto err;
429         Ztmplen = (EC_GROUP_get_degree(EC_KEY_get0_group(key1)) + 7)/8;
430         if (Ztmplen != Zlen)
431                 goto err;
432         Ztmp = OPENSSL_malloc(Ztmplen);
433         if (!ECDH_compute_key(Ztmp, Ztmplen,
434                                 EC_KEY_get0_public_key(key2), key1, 0))
435                 goto err;
436         if (memcmp(Ztmp, Z, Zlen))
437                 goto err;
438         memset(Ztmp, 0, Zlen);
439         if (!ECDH_compute_key(Ztmp, Ztmplen,
440                                 EC_KEY_get0_public_key(key1), key2, 0))
441                 goto err;
442         if (memcmp(Ztmp, Z, Zlen))
443                 goto err;
444         rv = 1;
445         err:
446         if (key1)
447                 EC_KEY_free(key1);
448         if (key2)
449                 EC_KEY_free(key2);
450         if (Ztmp)
451                 OPENSSL_free(Ztmp);
452         if (rv)
453                 BIO_puts(out, " ok\n");
454         else
455                 {
456                 fprintf(stderr, "Error in ECDH routines\n");
457                 ERR_print_errors_fp(stderr);
458                 }
459         return rv;
460         }
461
462 #define test_ecdh_kat(bio, curve, bits) \
463         ecdh_kat(bio, curve, NID_brainpoolP##bits##r1, \
464                 bp##bits##_da, sizeof(bp##bits##_da), \
465                 bp##bits##_db, sizeof(bp##bits##_db), \
466                 bp##bits##_Z, sizeof(bp##bits##_Z))
467
468 int main(int argc, char *argv[])
469         {
470         BN_CTX *ctx=NULL;
471         int ret=1;
472         BIO *out;
473
474         CRYPTO_malloc_debug_init();
475         CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL);
476         CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
477
478 #ifdef OPENSSL_SYS_WIN32
479         CRYPTO_malloc_init();
480 #endif
481
482         RAND_seed(rnd_seed, sizeof rnd_seed);
483
484         out=BIO_new(BIO_s_file());
485         if (out == NULL) EXIT(1);
486         BIO_set_fp(out,stdout,BIO_NOCLOSE);
487
488         if ((ctx=BN_CTX_new()) == NULL) goto err;
489
490         /* NIST PRIME CURVES TESTS */
491         if (!test_ecdh_curve(NID_X9_62_prime192v1, "NIST Prime-Curve P-192", ctx, out)) goto err;
492         if (!test_ecdh_curve(NID_secp224r1, "NIST Prime-Curve P-224", ctx, out)) goto err;
493         if (!test_ecdh_curve(NID_X9_62_prime256v1, "NIST Prime-Curve P-256", ctx, out)) goto err;
494         if (!test_ecdh_curve(NID_secp384r1, "NIST Prime-Curve P-384", ctx, out)) goto err;
495         if (!test_ecdh_curve(NID_secp521r1, "NIST Prime-Curve P-521", ctx, out)) goto err;
496 #ifndef OPENSSL_NO_EC2M
497         /* NIST BINARY CURVES TESTS */
498         if (!test_ecdh_curve(NID_sect163k1, "NIST Binary-Curve K-163", ctx, out)) goto err;
499         if (!test_ecdh_curve(NID_sect163r2, "NIST Binary-Curve B-163", ctx, out)) goto err;
500         if (!test_ecdh_curve(NID_sect233k1, "NIST Binary-Curve K-233", ctx, out)) goto err;
501         if (!test_ecdh_curve(NID_sect233r1, "NIST Binary-Curve B-233", ctx, out)) goto err;
502         if (!test_ecdh_curve(NID_sect283k1, "NIST Binary-Curve K-283", ctx, out)) goto err;
503         if (!test_ecdh_curve(NID_sect283r1, "NIST Binary-Curve B-283", ctx, out)) goto err;
504         if (!test_ecdh_curve(NID_sect409k1, "NIST Binary-Curve K-409", ctx, out)) goto err;
505         if (!test_ecdh_curve(NID_sect409r1, "NIST Binary-Curve B-409", ctx, out)) goto err;
506         if (!test_ecdh_curve(NID_sect571k1, "NIST Binary-Curve K-571", ctx, out)) goto err;
507         if (!test_ecdh_curve(NID_sect571r1, "NIST Binary-Curve B-571", ctx, out)) goto err;
508 #endif
509         if (!test_ecdh_kat(out, "Brainpool Prime-Curve brainpoolP256r1", 256))
510                 goto err;
511         if (!test_ecdh_kat(out, "Brainpool Prime-Curve brainpoolP384r1", 384))
512                 goto err;
513         if (!test_ecdh_kat(out, "Brainpool Prime-Curve brainpoolP512r1", 512))
514                 goto err;
515
516         ret = 0;
517
518 err:
519         ERR_print_errors_fp(stderr);
520         if (ctx) BN_CTX_free(ctx);
521         BIO_free(out);
522         CRYPTO_cleanup_all_ex_data();
523         ERR_remove_thread_state(NULL);
524         CRYPTO_mem_leaks_fp(stderr);
525         EXIT(ret);
526         return(ret);
527         }
528
529 #if 0
530 static void MS_CALLBACK cb(int p, int n, void *arg)
531         {
532         char c='*';
533
534         if (p == 0) c='.';
535         if (p == 1) c='+';
536         if (p == 2) c='*';
537         if (p == 3) c='\n';
538         BIO_write((BIO *)arg,&c,1);
539         (void)BIO_flush((BIO *)arg);
540         }
541 #endif
542 #endif