1 /* crypto/asn1/n_pkey.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
70 typedef struct netscape_pkey_st
72 ASN1_INTEGER *version;
74 ASN1_OCTET_STRING *private_key;
78 * ASN1err(ASN1_F_D2I_NETSCAPE_RSA,ERR_R_ASN1_LENGTH_MISMATCH);
79 * ASN1err(ASN1_F_D2I_NETSCAPE_RSA,ASN1_R_DECODING_ERROR);
80 * ASN1err(ASN1_F_D2I_NETSCAPE_PKEY,ASN1_R_DECODING_ERROR);
81 * ASN1err(ASN1_F_NETSCAPE_PKEY_NEW,ASN1_R_DECODING_ERROR);
84 static int i2d_NETSCAPE_PKEY(NETSCAPE_PKEY *a, unsigned char **pp);
85 static NETSCAPE_PKEY *d2i_NETSCAPE_PKEY(NETSCAPE_PKEY **a,unsigned char **pp, long length);
86 static NETSCAPE_PKEY *NETSCAPE_PKEY_new(void);
87 static void NETSCAPE_PKEY_free(NETSCAPE_PKEY *);
89 static int i2d_NETSCAPE_PKEY();
90 static NETSCAPE_PKEY *d2i_NETSCAPE_PKEY();
91 static NETSCAPE_PKEY *NETSCAPE_PKEY_new();
92 static void NETSCAPE_PKEY_free();
95 int i2d_Netscape_RSA(RSA *a, unsigned char **pp, int (*cb)())
99 unsigned char buf[256],*zz;
100 unsigned char key[EVP_MAX_KEY_LENGTH];
102 X509_ALGOR *alg=NULL;
103 ASN1_OCTET_STRING os,os2;
106 if (a == NULL) return(0);
109 r=r; /* shut the damn compiler up :-) */
112 os.data=os2.data=NULL;
113 if ((pkey=NETSCAPE_PKEY_new()) == NULL) goto err;
114 if (!ASN1_INTEGER_set(pkey->version,0)) goto err;
116 if (pkey->algor->algorithm != NULL)
117 ASN1_OBJECT_free(pkey->algor->algorithm);
118 pkey->algor->algorithm=OBJ_nid2obj(NID_rsaEncryption);
119 if ((pkey->algor->parameter=ASN1_TYPE_new()) == NULL) goto err;
120 pkey->algor->parameter->type=V_ASN1_NULL;
122 l[0]=i2d_RSAPrivateKey(a,NULL);
123 pkey->private_key->length=l[0];
125 os2.length=i2d_NETSCAPE_PKEY(pkey,NULL);
126 l[1]=i2d_ASN1_OCTET_STRING(&os2,NULL);
128 if ((alg=X509_ALGOR_new()) == NULL) goto err;
129 if (alg->algorithm != NULL)
130 ASN1_OBJECT_free(alg->algorithm);
131 alg->algorithm=OBJ_nid2obj(NID_rc4);
132 if ((alg->parameter=ASN1_TYPE_new()) == NULL) goto err;
133 alg->parameter->type=V_ASN1_NULL;
135 l[2]=i2d_X509_ALGOR(alg,NULL);
136 l[3]=ASN1_object_size(1,l[2]+l[1],V_ASN1_SEQUENCE);
139 os.data=(unsigned char *)"private-key";
142 l[4]=i2d_ASN1_OCTET_STRING(&os,NULL);
144 l[5]=ASN1_object_size(1,l[4]+l[3],V_ASN1_SEQUENCE);
148 if (pkey != NULL) NETSCAPE_PKEY_free(pkey);
149 if (alg != NULL) X509_ALGOR_free(alg);
153 if (pkey->private_key->data != NULL)
154 Free((char *)pkey->private_key->data);
155 if ((pkey->private_key->data=(unsigned char *)Malloc(l[0])) == NULL)
157 ASN1err(ASN1_F_I2D_NETSCAPE_RSA,ERR_R_MALLOC_FAILURE);
160 zz=pkey->private_key->data;
161 i2d_RSAPrivateKey(a,&zz);
163 if ((os2.data=(unsigned char *)Malloc(os2.length)) == NULL)
165 ASN1err(ASN1_F_I2D_NETSCAPE_RSA,ERR_R_MALLOC_FAILURE);
169 i2d_NETSCAPE_PKEY(pkey,&zz);
172 cb=EVP_read_pw_string;
173 i=cb(buf,256,"Enter Private Key password:",1);
176 ASN1err(ASN1_F_I2D_NETSCAPE_RSA,ASN1_R_BAD_PASSWORD_READ);
179 EVP_BytesToKey(EVP_rc4(),EVP_md5(),NULL,buf,
180 strlen((char *)buf),1,key,NULL);
183 EVP_CIPHER_CTX_init(&ctx);
184 EVP_EncryptInit(&ctx,EVP_rc4(),key,NULL);
185 EVP_EncryptUpdate(&ctx,os2.data,&i,os2.data,os2.length);
186 EVP_EncryptFinal(&ctx,&(os2.data[i]),&j);
187 EVP_CIPHER_CTX_cleanup(&ctx);
190 ASN1_put_object(&p,1,l[4]+l[3],V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL);
191 i2d_ASN1_OCTET_STRING(&os,&p);
192 ASN1_put_object(&p,1,l[2]+l[1],V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL);
193 i2d_X509_ALGOR(alg,&p);
194 i2d_ASN1_OCTET_STRING(&os2,&p);
197 if (os2.data != NULL) Free(os2.data);
198 if (alg != NULL) X509_ALGOR_free(alg);
199 if (pkey != NULL) NETSCAPE_PKEY_free(pkey);
204 RSA *d2i_Netscape_RSA(RSA **a, unsigned char **pp, long length, int (*cb)())
207 ASN1_OCTET_STRING *os=NULL;
211 c.error=ASN1_R_DECODING_ERROR;
214 M_ASN1_D2I_start_sequence();
215 M_ASN1_D2I_get(os,d2i_ASN1_OCTET_STRING);
216 if ((os->length != 11) || (strncmp("private-key",
217 (char *)os->data,os->length) != 0))
219 ASN1err(ASN1_F_D2I_NETSCAPE_RSA,ASN1_R_PRIVATE_KEY_HEADER_MISSING);
220 ASN1_BIT_STRING_free(os);
223 ASN1_BIT_STRING_free(os);
225 if ((ret=d2i_Netscape_RSA_2(a,&c.p,c.slen,cb)) == NULL) goto err;
228 M_ASN1_D2I_Finish(a,RSA_free,ASN1_F_D2I_NETSCAPE_RSA);
231 RSA *d2i_Netscape_RSA_2(RSA **a, unsigned char **pp, long length,
234 NETSCAPE_PKEY *pkey=NULL;
237 unsigned char buf[256],*zz;
238 unsigned char key[EVP_MAX_KEY_LENGTH];
240 X509_ALGOR *alg=NULL;
241 ASN1_OCTET_STRING *os=NULL;
244 c.error=ERR_R_NESTED_ASN1_ERROR;
248 M_ASN1_D2I_start_sequence();
249 M_ASN1_D2I_get(alg,d2i_X509_ALGOR);
250 if (OBJ_obj2nid(alg->algorithm) != NID_rc4)
252 ASN1err(ASN1_F_D2I_NETSCAPE_RSA_2,ASN1_R_UNSUPPORTED_ENCRYPTION_ALGORITHM);
255 M_ASN1_D2I_get(os,d2i_ASN1_OCTET_STRING);
257 cb=EVP_read_pw_string;
258 i=cb(buf,256,"Enter Private Key password:",0);
261 ASN1err(ASN1_F_D2I_NETSCAPE_RSA_2,ASN1_R_BAD_PASSWORD_READ);
265 EVP_BytesToKey(EVP_rc4(),EVP_md5(),NULL,buf,
266 strlen((char *)buf),1,key,NULL);
269 EVP_CIPHER_CTX_init(&ctx);
270 EVP_DecryptInit(&ctx,EVP_rc4(),key,NULL);
271 EVP_DecryptUpdate(&ctx,os->data,&i,os->data,os->length);
272 EVP_DecryptFinal(&ctx,&(os->data[i]),&j);
273 EVP_CIPHER_CTX_cleanup(&ctx);
278 if ((pkey=d2i_NETSCAPE_PKEY(NULL,&zz,os->length)) == NULL)
280 ASN1err(ASN1_F_D2I_NETSCAPE_RSA_2,ASN1_R_UNABLE_TO_DECODE_RSA_PRIVATE_KEY);
284 zz=pkey->private_key->data;
285 if ((ret=d2i_RSAPrivateKey(a,&zz,pkey->private_key->length)) == NULL)
287 ASN1err(ASN1_F_D2I_NETSCAPE_RSA_2,ASN1_R_UNABLE_TO_DECODE_RSA_KEY);
290 if (!asn1_Finish(&c)) goto err;
293 if (pkey != NULL) NETSCAPE_PKEY_free(pkey);
294 if (os != NULL) ASN1_BIT_STRING_free(os);
295 if (alg != NULL) X509_ALGOR_free(alg);
299 static int i2d_NETSCAPE_PKEY(NETSCAPE_PKEY *a, unsigned char **pp)
304 M_ASN1_I2D_len(a->version, i2d_ASN1_INTEGER);
305 M_ASN1_I2D_len(a->algor, i2d_X509_ALGOR);
306 M_ASN1_I2D_len(a->private_key, i2d_ASN1_OCTET_STRING);
308 M_ASN1_I2D_seq_total();
310 M_ASN1_I2D_put(a->version, i2d_ASN1_INTEGER);
311 M_ASN1_I2D_put(a->algor, i2d_X509_ALGOR);
312 M_ASN1_I2D_put(a->private_key, i2d_ASN1_OCTET_STRING);
317 static NETSCAPE_PKEY *d2i_NETSCAPE_PKEY(NETSCAPE_PKEY **a, unsigned char **pp,
320 M_ASN1_D2I_vars(a,NETSCAPE_PKEY *,NETSCAPE_PKEY_new);
323 M_ASN1_D2I_start_sequence();
324 M_ASN1_D2I_get(ret->version,d2i_ASN1_INTEGER);
325 M_ASN1_D2I_get(ret->algor,d2i_X509_ALGOR);
326 M_ASN1_D2I_get(ret->private_key,d2i_ASN1_OCTET_STRING);
327 M_ASN1_D2I_Finish(a,NETSCAPE_PKEY_free,ASN1_F_D2I_NETSCAPE_PKEY);
330 static NETSCAPE_PKEY *NETSCAPE_PKEY_new(void)
332 NETSCAPE_PKEY *ret=NULL;
335 M_ASN1_New_Malloc(ret,NETSCAPE_PKEY);
336 M_ASN1_New(ret->version,ASN1_INTEGER_new);
337 M_ASN1_New(ret->algor,X509_ALGOR_new);
338 M_ASN1_New(ret->private_key,ASN1_OCTET_STRING_new);
340 M_ASN1_New_Error(ASN1_F_NETSCAPE_PKEY_NEW);
343 static void NETSCAPE_PKEY_free(NETSCAPE_PKEY *a)
345 if (a == NULL) return;
346 ASN1_INTEGER_free(a->version);
347 X509_ALGOR_free(a->algor);
348 ASN1_OCTET_STRING_free(a->private_key);