1 /* crypto/pem/pem_lib.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.]
61 #include <openssl/buffer.h>
62 #include <openssl/objects.h>
63 #include <openssl/evp.h>
64 #include <openssl/rand.h>
65 #include <openssl/x509.h>
66 #include <openssl/pem.h>
67 #include <openssl/pkcs12.h>
69 #include <openssl/des.h>
72 const char *PEM_version="PEM" OPENSSL_VERSION_PTEXT;
76 static int def_callback(char *buf, int num, int w, void *userdata);
77 static int load_iv(unsigned char **fromp,unsigned char *to, int num);
78 static int check_pem(const char *nm, const char *name);
79 static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder,
80 int nid, const EVP_CIPHER *enc,
82 pem_password_cb *cb, void *u);
83 static int do_pk8pkey_fp(FILE *bp, EVP_PKEY *x, int isder,
84 int nid, const EVP_CIPHER *enc,
86 pem_password_cb *cb, void *u);
88 static int def_callback(char *buf, int num, int w, void *userdata)
91 /* We should not ever call the default callback routine from
93 PEMerr(PEM_F_DEF_CALLBACK,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
99 prompt=EVP_get_pw_prompt();
101 prompt="Enter PEM pass phrase:";
105 i=EVP_read_pw_string(buf,num,prompt,w);
108 PEMerr(PEM_F_DEF_CALLBACK,PEM_R_PROBLEMS_GETTING_PASSWORD);
109 memset(buf,0,(unsigned int)num);
115 fprintf(stderr,"phrase is too short, needs to be at least %d chars\n",MIN_LENGTH);
124 void PEM_proc_type(char *buf, int type)
128 if (type == PEM_TYPE_ENCRYPTED)
130 else if (type == PEM_TYPE_MIC_CLEAR)
132 else if (type == PEM_TYPE_MIC_ONLY)
137 strcat(buf,"Proc-Type: 4,");
142 void PEM_dek_info(char *buf, const char *type, int len, char *str)
144 static unsigned char map[17]="0123456789ABCDEF";
148 strcat(buf,"DEK-Info: ");
152 for (i=0; i<len; i++)
154 buf[j+i*2] =map[(str[i]>>4)&0x0f];
155 buf[j+i*2+1]=map[(str[i] )&0x0f];
162 char *PEM_ASN1_read(char *(*d2i)(), const char *name, FILE *fp, char **x,
163 pem_password_cb *cb, void *u)
168 if ((b=BIO_new(BIO_s_file())) == NULL)
170 PEMerr(PEM_F_PEM_ASN1_READ,ERR_R_BUF_LIB);
173 BIO_set_fp(b,fp,BIO_NOCLOSE);
174 ret=PEM_ASN1_read_bio(d2i,name,b,x,cb,u);
180 static int check_pem(const char *nm, const char *name)
182 /* Normal matching nm and name */
183 if (!strcmp(nm,name)) return 1;
185 /* Make PEM_STRING_EVP_PKEY match any private key */
187 if(!strcmp(nm,PEM_STRING_PKCS8) &&
188 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
190 if(!strcmp(nm,PEM_STRING_PKCS8INF) &&
191 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
193 if(!strcmp(nm,PEM_STRING_RSA) &&
194 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
196 if(!strcmp(nm,PEM_STRING_DSA) &&
197 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
199 /* Permit older strings */
201 if(!strcmp(nm,PEM_STRING_X509_OLD) &&
202 !strcmp(name,PEM_STRING_X509)) return 1;
204 if(!strcmp(nm,PEM_STRING_X509_REQ_OLD) &&
205 !strcmp(name,PEM_STRING_X509_REQ)) return 1;
207 /* Allow normal certs to be read as trusted certs */
208 if(!strcmp(nm,PEM_STRING_X509) &&
209 !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
211 if(!strcmp(nm,PEM_STRING_X509_OLD) &&
212 !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
217 char *PEM_ASN1_read_bio(char *(*d2i)(), const char *name, BIO *bp, char **x,
218 pem_password_cb *cb, void *u)
220 EVP_CIPHER_INFO cipher;
221 char *nm=NULL,*header=NULL;
222 unsigned char *p=NULL,*data=NULL;
228 if (!PEM_read_bio(bp,&nm,&header,&data,&len)) {
229 if(ERR_GET_REASON(ERR_peek_error()) ==
231 ERR_add_error_data(2, "Expecting: ", name);
234 if(check_pem(nm, name)) break;
239 if (!PEM_get_EVP_CIPHER_INFO(header,&cipher)) goto err;
240 if (!PEM_do_header(&cipher,data,&len,cb,u)) goto err;
242 if (strcmp(name,PEM_STRING_EVP_PKEY) == 0) {
243 if (strcmp(nm,PEM_STRING_RSA) == 0)
244 ret=d2i(EVP_PKEY_RSA,x,&p,len);
245 else if (strcmp(nm,PEM_STRING_DSA) == 0)
246 ret=d2i(EVP_PKEY_DSA,x,&p,len);
247 else if (strcmp(nm,PEM_STRING_PKCS8INF) == 0) {
248 PKCS8_PRIV_KEY_INFO *p8inf;
249 p8inf=d2i_PKCS8_PRIV_KEY_INFO(
250 (PKCS8_PRIV_KEY_INFO **) x, &p, len);
251 ret = (char *)EVP_PKCS82PKEY(p8inf);
252 PKCS8_PRIV_KEY_INFO_free(p8inf);
253 } else if (strcmp(nm,PEM_STRING_PKCS8) == 0) {
254 PKCS8_PRIV_KEY_INFO *p8inf;
257 char psbuf[PEM_BUFSIZE];
258 p8 = d2i_X509_SIG(NULL, &p, len);
260 if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
261 else klen=def_callback(psbuf,PEM_BUFSIZE,0,u);
263 PEMerr(PEM_F_PEM_ASN1_READ_BIO,
264 PEM_R_BAD_PASSWORD_READ);
267 p8inf = M_PKCS8_decrypt(p8, psbuf, klen);
269 if(!p8inf) goto p8err;
270 ret = (char *)EVP_PKCS82PKEY(p8inf);
272 if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
275 PKCS8_PRIV_KEY_INFO_free(p8inf);
277 } else ret=d2i(x,&p,len);
280 PEMerr(PEM_F_PEM_ASN1_READ_BIO,ERR_R_ASN1_LIB);
289 int PEM_ASN1_write(int (*i2d)(), const char *name, FILE *fp, char *x,
290 const EVP_CIPHER *enc, unsigned char *kstr, int klen,
291 pem_password_cb *callback, void *u)
296 if ((b=BIO_new(BIO_s_file())) == NULL)
298 PEMerr(PEM_F_PEM_ASN1_WRITE,ERR_R_BUF_LIB);
301 BIO_set_fp(b,fp,BIO_NOCLOSE);
302 ret=PEM_ASN1_write_bio(i2d,name,b,x,enc,kstr,klen,callback,u);
308 int PEM_ASN1_write_bio(int (*i2d)(), const char *name, BIO *bp, char *x,
309 const EVP_CIPHER *enc, unsigned char *kstr, int klen,
310 pem_password_cb *callback, void *u)
313 int dsize=0,i,j,ret=0;
314 unsigned char *p,*data=NULL;
315 const char *objstr=NULL;
316 char buf[PEM_BUFSIZE];
317 unsigned char key[EVP_MAX_KEY_LENGTH];
318 unsigned char iv[EVP_MAX_IV_LENGTH];
322 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
325 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
330 if ((dsize=i2d(x,NULL)) < 0)
332 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
336 /* dzise + 8 bytes are needed */
337 data=(unsigned char *)Malloc((unsigned int)dsize+20);
340 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
350 if (callback == NULL)
351 klen=def_callback(buf,PEM_BUFSIZE,1,u);
353 klen=(*callback)(buf,PEM_BUFSIZE,1,u);
356 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_READ_KEY);
359 #ifdef CHARSET_EBCDIC
360 /* Convert the pass phrase from EBCDIC */
361 ebcdic2ascii(buf, buf, klen);
363 kstr=(unsigned char *)buf;
365 RAND_seed(data,i);/* put in the RSA key. */
366 RAND_bytes(iv,8); /* Generate a salt */
367 /* The 'iv' is used as the iv and as a salt. It is
368 * NOT taken from the BytesToKey function */
369 EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL);
371 if (kstr == (unsigned char *)buf) memset(buf,0,PEM_BUFSIZE);
374 PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
375 PEM_dek_info(buf,objstr,8,(char *)iv);
378 EVP_EncryptInit(&ctx,enc,key,iv);
379 EVP_EncryptUpdate(&ctx,data,&j,data,i);
380 EVP_EncryptFinal(&ctx,&(data[j]),&i);
389 i=PEM_write_bio(bp,name,buf,data,i);
392 memset(key,0,sizeof(key));
393 memset(iv,0,sizeof(iv));
394 memset((char *)&ctx,0,sizeof(ctx));
395 memset(buf,0,PEM_BUFSIZE);
396 memset(data,0,(unsigned int)dsize);
401 int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen,
402 pem_password_cb *callback,void *u)
407 unsigned char key[EVP_MAX_KEY_LENGTH];
408 char buf[PEM_BUFSIZE];
412 if (cipher->cipher == NULL) return(1);
413 if (callback == NULL)
414 klen=def_callback(buf,PEM_BUFSIZE,0,u);
416 klen=callback(buf,PEM_BUFSIZE,0,u);
419 PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_PASSWORD_READ);
422 #ifdef CHARSET_EBCDIC
423 /* Convert the pass phrase from EBCDIC */
424 ebcdic2ascii(buf, buf, klen);
427 EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]),
428 (unsigned char *)buf,klen,1,key,NULL);
431 EVP_DecryptInit(&ctx,cipher->cipher,key,&(cipher->iv[0]));
432 EVP_DecryptUpdate(&ctx,data,&i,data,j);
433 o=EVP_DecryptFinal(&ctx,&(data[i]),&j);
434 EVP_CIPHER_CTX_cleanup(&ctx);
435 memset((char *)buf,0,sizeof(buf));
436 memset((char *)key,0,sizeof(key));
440 PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_DECRYPT);
447 int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher)
450 const EVP_CIPHER *enc=NULL;
454 if ((header == NULL) || (*header == '\0') || (*header == '\n'))
456 if (strncmp(header,"Proc-Type: ",11) != 0)
457 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_PROC_TYPE); return(0); }
459 if (*header != '4') return(0); header++;
460 if (*header != ',') return(0); header++;
461 if (strncmp(header,"ENCRYPTED",9) != 0)
462 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_ENCRYPTED); return(0); }
463 for (; (*header != '\n') && (*header != '\0'); header++)
466 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_SHORT_HEADER); return(0); }
468 if (strncmp(header,"DEK-Info: ",10) != 0)
469 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_DEK_INFO); return(0); }
476 #ifndef CHARSET_EBCDIC
477 if (!( ((c >= 'A') && (c <= 'Z')) || (c == '-') ||
478 ((c >= '0') && (c <= '9'))))
481 if (!( isupper(c) || (c == '-') ||
489 cipher->cipher=enc=EVP_get_cipherbyname(p);
495 PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_UNSUPPORTED_ENCRYPTION);
498 if (!load_iv((unsigned char **)&header,&(cipher->iv[0]),8)) return(0);
503 static int load_iv(unsigned char **fromp, unsigned char *to, int num)
509 for (i=0; i<num; i++) to[i]=0;
511 for (i=0; i<num; i++)
513 if ((*from >= '0') && (*from <= '9'))
515 else if ((*from >= 'A') && (*from <= 'F'))
517 else if ((*from >= 'a') && (*from <= 'f'))
521 PEMerr(PEM_F_LOAD_IV,PEM_R_BAD_IV_CHARS);
525 to[i/2]|=v<<(long)((!(i&1))*4);
533 int PEM_write(FILE *fp, char *name, char *header, unsigned char *data,
539 if ((b=BIO_new(BIO_s_file())) == NULL)
541 PEMerr(PEM_F_PEM_WRITE,ERR_R_BUF_LIB);
544 BIO_set_fp(b,fp,BIO_NOCLOSE);
545 ret=PEM_write_bio(b, name, header, data,len);
551 int PEM_write_bio(BIO *bp, const char *name, char *header, unsigned char *data,
557 int reason=ERR_R_BUF_LIB;
559 EVP_EncodeInit(&ctx);
562 if ( (BIO_write(bp,"-----BEGIN ",11) != 11) ||
563 (BIO_write(bp,name,nlen) != nlen) ||
564 (BIO_write(bp,"-----\n",6) != 6))
570 if ( (BIO_write(bp,header,i) != i) ||
571 (BIO_write(bp,"\n",1) != 1))
575 buf=(unsigned char *)Malloc(PEM_BUFSIZE*8);
578 reason=ERR_R_MALLOC_FAILURE;
585 n=(int)((len>(PEM_BUFSIZE*5))?(PEM_BUFSIZE*5):len);
586 EVP_EncodeUpdate(&ctx,buf,&outl,&(data[j]),n);
587 if ((outl) && (BIO_write(bp,(char *)buf,outl) != outl))
593 EVP_EncodeFinal(&ctx,buf,&outl);
594 if ((outl > 0) && (BIO_write(bp,(char *)buf,outl) != outl)) goto err;
596 if ( (BIO_write(bp,"-----END ",9) != 9) ||
597 (BIO_write(bp,name,nlen) != nlen) ||
598 (BIO_write(bp,"-----\n",6) != 6))
602 PEMerr(PEM_F_PEM_WRITE_BIO,reason);
607 int PEM_read(FILE *fp, char **name, char **header, unsigned char **data,
613 if ((b=BIO_new(BIO_s_file())) == NULL)
615 PEMerr(PEM_F_PEM_READ,ERR_R_BUF_LIB);
618 BIO_set_fp(b,fp,BIO_NOCLOSE);
619 ret=PEM_read_bio(b, name, header, data,len);
625 int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data,
629 int end=0,i,k,bl=0,hl=0,nohead=0;
633 BUF_MEM *dataB,*tmpB;
636 headerB=BUF_MEM_new();
638 if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL))
640 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
647 i=BIO_gets(bp,buf,254);
651 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_NO_START_LINE);
655 while ((i >= 0) && (buf[i] <= ' ')) i--;
656 buf[++i]='\n'; buf[++i]='\0';
658 if (strncmp(buf,"-----BEGIN ",11) == 0)
660 i=strlen(&(buf[11]));
662 if (strncmp(&(buf[11+i-6]),"-----\n",6) != 0)
664 if (!BUF_MEM_grow(nameB,i+9))
666 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
669 memcpy(nameB->data,&(buf[11]),i-6);
670 nameB->data[i-6]='\0';
675 if (!BUF_MEM_grow(headerB,256))
676 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
677 headerB->data[0]='\0';
680 i=BIO_gets(bp,buf,254);
683 while ((i >= 0) && (buf[i] <= ' ')) i--;
684 buf[++i]='\n'; buf[++i]='\0';
686 if (buf[0] == '\n') break;
687 if (!BUF_MEM_grow(headerB,hl+i+9))
688 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
689 if (strncmp(buf,"-----END ",9) == 0)
694 memcpy(&(headerB->data[hl]),buf,i);
695 headerB->data[hl+i]='\0';
700 if (!BUF_MEM_grow(dataB,1024))
701 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
707 i=BIO_gets(bp,buf,254);
710 while ((i >= 0) && (buf[i] <= ' ')) i--;
711 buf[++i]='\n'; buf[++i]='\0';
714 if (strncmp(buf,"-----END ",9) == 0)
717 if (!BUF_MEM_grow(dataB,i+bl+9))
719 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
722 memcpy(&(dataB->data[bl]),buf,i);
723 dataB->data[bl+i]='\0';
728 i=BIO_gets(bp,buf,254);
731 while ((i >= 0) && (buf[i] <= ' ')) i--;
732 buf[++i]='\n'; buf[++i]='\0';
745 i=strlen(nameB->data);
746 if ( (strncmp(buf,"-----END ",9) != 0) ||
747 (strncmp(nameB->data,&(buf[9]),i) != 0) ||
748 (strncmp(&(buf[9+i]),"-----\n",6) != 0))
750 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_END_LINE);
754 EVP_DecodeInit(&ctx);
755 i=EVP_DecodeUpdate(&ctx,
756 (unsigned char *)dataB->data,&bl,
757 (unsigned char *)dataB->data,bl);
760 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
763 i=EVP_DecodeFinal(&ctx,(unsigned char *)&(dataB->data[bl]),&k);
766 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
771 if (bl == 0) goto err;
773 *header=headerB->data;
774 *data=(unsigned char *)dataB->data;
782 BUF_MEM_free(headerB);
787 /* These functions write a private key in PKCS#8 format: it is a "drop in"
788 * replacement for PEM_write_bio_PrivateKey() and friends. As usual if 'enc'
789 * is NULL then it uses the unencrypted private key form. The 'nid' versions
790 * uses PKCS#5 v1.5 PBE algorithms whereas the others use PKCS#5 v2.0.
793 int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, EVP_PKEY *x, int nid,
794 char *kstr, int klen,
795 pem_password_cb *cb, void *u)
797 return do_pk8pkey(bp, x, 0, nid, NULL, kstr, klen, cb, u);
800 int PEM_write_bio_PKCS8PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
801 char *kstr, int klen,
802 pem_password_cb *cb, void *u)
804 return do_pk8pkey(bp, x, 0, -1, enc, kstr, klen, cb, u);
807 int i2d_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
808 char *kstr, int klen,
809 pem_password_cb *cb, void *u)
811 return do_pk8pkey(bp, x, 1, -1, enc, kstr, klen, cb, u);
814 int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, EVP_PKEY *x, int nid,
815 char *kstr, int klen,
816 pem_password_cb *cb, void *u)
818 return do_pk8pkey(bp, x, 1, nid, NULL, kstr, klen, cb, u);
821 static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc,
822 char *kstr, int klen,
823 pem_password_cb *cb, void *u)
826 PKCS8_PRIV_KEY_INFO *p8inf;
827 char buf[PEM_BUFSIZE];
829 if(!(p8inf = EVP_PKEY2PKCS8(x))) {
830 PEMerr(PEM_F_PEM_WRITE_BIO_PKCS8PRIVATEKEY,
831 PEM_R_ERROR_CONVERTING_PRIVATE_KEY);
834 if(enc || (nid != -1)) {
836 if(!cb) klen = def_callback(buf, PEM_BUFSIZE, 1, u);
837 else klen = cb(buf, PEM_BUFSIZE, 1, u);
839 PEMerr(PEM_F_PEM_WRITE_BIO_PKCS8PRIVATEKEY,
841 PKCS8_PRIV_KEY_INFO_free(p8inf);
847 p8 = PKCS8_encrypt(nid, enc, kstr, klen, NULL, 0, 0, p8inf);
848 if(kstr == buf) memset(buf, 0, klen);
849 PKCS8_PRIV_KEY_INFO_free(p8inf);
850 if(isder) ret = i2d_PKCS8_bio(bp, p8);
851 else ret = PEM_write_bio_PKCS8(bp, p8);
855 if(isder) ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf);
856 else ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(bp, p8inf);
857 PKCS8_PRIV_KEY_INFO_free(p8inf);
862 /* Finally the DER version to read PKCS#8 encrypted private keys. It has to be
863 * here to access the default callback.
866 EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u)
868 PKCS8_PRIV_KEY_INFO *p8inf = NULL;
872 char psbuf[PEM_BUFSIZE];
873 p8 = d2i_PKCS8_bio(bp, NULL);
875 if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
876 else klen=def_callback(psbuf,PEM_BUFSIZE,0,u);
878 PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_BIO, PEM_R_BAD_PASSWORD_READ);
882 p8inf = M_PKCS8_decrypt(p8, psbuf, klen);
884 if(!p8inf) return NULL;
885 ret = EVP_PKCS82PKEY(p8inf);
886 PKCS8_PRIV_KEY_INFO_free(p8inf);
887 if(!ret) return NULL;
889 if(*x) EVP_PKEY_free(*x);
897 int i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
898 char *kstr, int klen,
899 pem_password_cb *cb, void *u)
901 return do_pk8pkey_fp(fp, x, 1, -1, enc, kstr, klen, cb, u);
904 int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid,
905 char *kstr, int klen,
906 pem_password_cb *cb, void *u)
908 return do_pk8pkey_fp(fp, x, 1, nid, NULL, kstr, klen, cb, u);
911 int PEM_write_PKCS8PrivateKey_nid(FILE *fp, EVP_PKEY *x, int nid,
912 char *kstr, int klen,
913 pem_password_cb *cb, void *u)
915 return do_pk8pkey_fp(fp, x, 0, nid, NULL, kstr, klen, cb, u);
918 int PEM_write_PKCS8PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
919 char *kstr, int klen, pem_password_cb *cb, void *u)
921 return do_pk8pkey_fp(fp, x, 0, -1, enc, kstr, klen, cb, u);
924 static int do_pk8pkey_fp(FILE *fp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc,
925 char *kstr, int klen,
926 pem_password_cb *cb, void *u)
930 if(!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
931 PEMerr(PEM_F_PEM_F_DO_PK8KEY_FP,ERR_R_BUF_LIB);
934 ret = do_pk8pkey(bp, x, isder, nid, enc, kstr, klen, cb, u);
939 EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
943 if(!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
944 PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_FP,ERR_R_BUF_LIB);
947 ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u);