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 *key)
91 /* We should not ever call the default callback routine from
93 PEMerr(PEM_F_DEF_CALLBACK,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
105 prompt=EVP_get_pw_prompt();
107 prompt="Enter PEM pass phrase:";
111 i=EVP_read_pw_string(buf,num,prompt,w);
114 PEMerr(PEM_F_DEF_CALLBACK,PEM_R_PROBLEMS_GETTING_PASSWORD);
115 memset(buf,0,(unsigned int)num);
121 fprintf(stderr,"phrase is too short, needs to be at least %d chars\n",MIN_LENGTH);
130 void PEM_proc_type(char *buf, int type)
134 if (type == PEM_TYPE_ENCRYPTED)
136 else if (type == PEM_TYPE_MIC_CLEAR)
138 else if (type == PEM_TYPE_MIC_ONLY)
143 strcat(buf,"Proc-Type: 4,");
148 void PEM_dek_info(char *buf, const char *type, int len, char *str)
150 static unsigned char map[17]="0123456789ABCDEF";
154 strcat(buf,"DEK-Info: ");
158 for (i=0; i<len; i++)
160 buf[j+i*2] =map[(str[i]>>4)&0x0f];
161 buf[j+i*2+1]=map[(str[i] )&0x0f];
168 char *PEM_ASN1_read(char *(*d2i)(), const char *name, FILE *fp, char **x,
169 pem_password_cb *cb, void *u)
174 if ((b=BIO_new(BIO_s_file())) == NULL)
176 PEMerr(PEM_F_PEM_ASN1_READ,ERR_R_BUF_LIB);
179 BIO_set_fp(b,fp,BIO_NOCLOSE);
180 ret=PEM_ASN1_read_bio(d2i,name,b,x,cb,u);
186 static int check_pem(const char *nm, const char *name)
188 /* Normal matching nm and name */
189 if (!strcmp(nm,name)) return 1;
191 /* Make PEM_STRING_EVP_PKEY match any private key */
193 if(!strcmp(nm,PEM_STRING_PKCS8) &&
194 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
196 if(!strcmp(nm,PEM_STRING_PKCS8INF) &&
197 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
199 if(!strcmp(nm,PEM_STRING_RSA) &&
200 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
202 if(!strcmp(nm,PEM_STRING_DSA) &&
203 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
205 /* Permit older strings */
207 if(!strcmp(nm,PEM_STRING_X509_OLD) &&
208 !strcmp(name,PEM_STRING_X509)) return 1;
210 if(!strcmp(nm,PEM_STRING_X509_REQ_OLD) &&
211 !strcmp(name,PEM_STRING_X509_REQ)) return 1;
213 /* Allow normal certs to be read as trusted certs */
214 if(!strcmp(nm,PEM_STRING_X509) &&
215 !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
217 if(!strcmp(nm,PEM_STRING_X509_OLD) &&
218 !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
220 /* Some CAs use PKCS#7 with CERTIFICATE headers */
221 if(!strcmp(nm, PEM_STRING_X509) &&
222 !strcmp(name, PEM_STRING_PKCS7)) return 1;
227 char *PEM_ASN1_read_bio(char *(*d2i)(), const char *name, BIO *bp, char **x,
228 pem_password_cb *cb, void *u)
230 EVP_CIPHER_INFO cipher;
231 char *nm=NULL,*header=NULL;
232 unsigned char *p=NULL,*data=NULL;
238 if (!PEM_read_bio(bp,&nm,&header,&data,&len)) {
239 if(ERR_GET_REASON(ERR_peek_error()) ==
241 ERR_add_error_data(2, "Expecting: ", name);
244 if(check_pem(nm, name)) break;
246 OPENSSL_free(header);
249 if (!PEM_get_EVP_CIPHER_INFO(header,&cipher)) goto err;
250 if (!PEM_do_header(&cipher,data,&len,cb,u)) goto err;
252 if (strcmp(name,PEM_STRING_EVP_PKEY) == 0) {
253 if (strcmp(nm,PEM_STRING_RSA) == 0)
254 ret=d2i(EVP_PKEY_RSA,x,&p,len);
255 else if (strcmp(nm,PEM_STRING_DSA) == 0)
256 ret=d2i(EVP_PKEY_DSA,x,&p,len);
257 else if (strcmp(nm,PEM_STRING_PKCS8INF) == 0) {
258 PKCS8_PRIV_KEY_INFO *p8inf;
259 p8inf=d2i_PKCS8_PRIV_KEY_INFO(
260 (PKCS8_PRIV_KEY_INFO **) x, &p, len);
261 ret = (char *)EVP_PKCS82PKEY(p8inf);
262 PKCS8_PRIV_KEY_INFO_free(p8inf);
263 } else if (strcmp(nm,PEM_STRING_PKCS8) == 0) {
264 PKCS8_PRIV_KEY_INFO *p8inf;
267 char psbuf[PEM_BUFSIZE];
268 p8 = d2i_X509_SIG(NULL, &p, len);
270 if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
271 else klen=def_callback(psbuf,PEM_BUFSIZE,0,u);
273 PEMerr(PEM_F_PEM_ASN1_READ_BIO,
274 PEM_R_BAD_PASSWORD_READ);
277 p8inf = M_PKCS8_decrypt(p8, psbuf, klen);
279 if(!p8inf) goto p8err;
280 ret = (char *)EVP_PKCS82PKEY(p8inf);
282 if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
285 PKCS8_PRIV_KEY_INFO_free(p8inf);
287 } else ret=d2i(x,&p,len);
290 PEMerr(PEM_F_PEM_ASN1_READ_BIO,ERR_R_ASN1_LIB);
293 OPENSSL_free(header);
299 int PEM_ASN1_write(int (*i2d)(), const char *name, FILE *fp, char *x,
300 const EVP_CIPHER *enc, unsigned char *kstr, int klen,
301 pem_password_cb *callback, void *u)
306 if ((b=BIO_new(BIO_s_file())) == NULL)
308 PEMerr(PEM_F_PEM_ASN1_WRITE,ERR_R_BUF_LIB);
311 BIO_set_fp(b,fp,BIO_NOCLOSE);
312 ret=PEM_ASN1_write_bio(i2d,name,b,x,enc,kstr,klen,callback,u);
318 int PEM_ASN1_write_bio(int (*i2d)(), const char *name, BIO *bp, char *x,
319 const EVP_CIPHER *enc, unsigned char *kstr, int klen,
320 pem_password_cb *callback, void *u)
323 int dsize=0,i,j,ret=0;
324 unsigned char *p,*data=NULL;
325 const char *objstr=NULL;
326 char buf[PEM_BUFSIZE];
327 unsigned char key[EVP_MAX_KEY_LENGTH];
328 unsigned char iv[EVP_MAX_IV_LENGTH];
332 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
335 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
340 if ((dsize=i2d(x,NULL)) < 0)
342 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
346 /* dzise + 8 bytes are needed */
347 data=(unsigned char *)OPENSSL_malloc((unsigned int)dsize+20);
350 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
360 if (callback == NULL)
361 klen=def_callback(buf,PEM_BUFSIZE,1,u);
363 klen=(*callback)(buf,PEM_BUFSIZE,1,u);
366 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_READ_KEY);
369 #ifdef CHARSET_EBCDIC
370 /* Convert the pass phrase from EBCDIC */
371 ebcdic2ascii(buf, buf, klen);
373 kstr=(unsigned char *)buf;
375 RAND_add(data,i,0);/* put in the RSA key. */
376 if (RAND_pseudo_bytes(iv,8) < 0) /* Generate a salt */
378 /* The 'iv' is used as the iv and as a salt. It is
379 * NOT taken from the BytesToKey function */
380 EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL);
382 if (kstr == (unsigned char *)buf) memset(buf,0,PEM_BUFSIZE);
385 PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
386 PEM_dek_info(buf,objstr,8,(char *)iv);
389 EVP_EncryptInit(&ctx,enc,key,iv);
390 EVP_EncryptUpdate(&ctx,data,&j,data,i);
391 EVP_EncryptFinal(&ctx,&(data[j]),&i);
400 i=PEM_write_bio(bp,name,buf,data,i);
403 memset(key,0,sizeof(key));
404 memset(iv,0,sizeof(iv));
405 memset((char *)&ctx,0,sizeof(ctx));
406 memset(buf,0,PEM_BUFSIZE);
407 memset(data,0,(unsigned int)dsize);
412 int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen,
413 pem_password_cb *callback,void *u)
418 unsigned char key[EVP_MAX_KEY_LENGTH];
419 char buf[PEM_BUFSIZE];
423 if (cipher->cipher == NULL) return(1);
424 if (callback == NULL)
425 klen=def_callback(buf,PEM_BUFSIZE,0,u);
427 klen=callback(buf,PEM_BUFSIZE,0,u);
430 PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_PASSWORD_READ);
433 #ifdef CHARSET_EBCDIC
434 /* Convert the pass phrase from EBCDIC */
435 ebcdic2ascii(buf, buf, klen);
438 EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]),
439 (unsigned char *)buf,klen,1,key,NULL);
442 EVP_DecryptInit(&ctx,cipher->cipher,key,&(cipher->iv[0]));
443 EVP_DecryptUpdate(&ctx,data,&i,data,j);
444 o=EVP_DecryptFinal(&ctx,&(data[i]),&j);
445 EVP_CIPHER_CTX_cleanup(&ctx);
446 memset((char *)buf,0,sizeof(buf));
447 memset((char *)key,0,sizeof(key));
451 PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_DECRYPT);
458 int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher)
461 const EVP_CIPHER *enc=NULL;
465 if ((header == NULL) || (*header == '\0') || (*header == '\n'))
467 if (strncmp(header,"Proc-Type: ",11) != 0)
468 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_PROC_TYPE); return(0); }
470 if (*header != '4') return(0); header++;
471 if (*header != ',') return(0); header++;
472 if (strncmp(header,"ENCRYPTED",9) != 0)
473 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_ENCRYPTED); return(0); }
474 for (; (*header != '\n') && (*header != '\0'); header++)
477 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_SHORT_HEADER); return(0); }
479 if (strncmp(header,"DEK-Info: ",10) != 0)
480 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_DEK_INFO); return(0); }
487 #ifndef CHARSET_EBCDIC
488 if (!( ((c >= 'A') && (c <= 'Z')) || (c == '-') ||
489 ((c >= '0') && (c <= '9'))))
492 if (!( isupper(c) || (c == '-') ||
500 cipher->cipher=enc=EVP_get_cipherbyname(p);
506 PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_UNSUPPORTED_ENCRYPTION);
509 if (!load_iv((unsigned char **)&header,&(cipher->iv[0]),8)) return(0);
514 static int load_iv(unsigned char **fromp, unsigned char *to, int num)
520 for (i=0; i<num; i++) to[i]=0;
522 for (i=0; i<num; i++)
524 if ((*from >= '0') && (*from <= '9'))
526 else if ((*from >= 'A') && (*from <= 'F'))
528 else if ((*from >= 'a') && (*from <= 'f'))
532 PEMerr(PEM_F_LOAD_IV,PEM_R_BAD_IV_CHARS);
536 to[i/2]|=v<<(long)((!(i&1))*4);
544 int PEM_write(FILE *fp, char *name, char *header, unsigned char *data,
550 if ((b=BIO_new(BIO_s_file())) == NULL)
552 PEMerr(PEM_F_PEM_WRITE,ERR_R_BUF_LIB);
555 BIO_set_fp(b,fp,BIO_NOCLOSE);
556 ret=PEM_write_bio(b, name, header, data,len);
562 int PEM_write_bio(BIO *bp, const char *name, char *header, unsigned char *data,
568 int reason=ERR_R_BUF_LIB;
570 EVP_EncodeInit(&ctx);
573 if ( (BIO_write(bp,"-----BEGIN ",11) != 11) ||
574 (BIO_write(bp,name,nlen) != nlen) ||
575 (BIO_write(bp,"-----\n",6) != 6))
581 if ( (BIO_write(bp,header,i) != i) ||
582 (BIO_write(bp,"\n",1) != 1))
586 buf=(unsigned char *)OPENSSL_malloc(PEM_BUFSIZE*8);
589 reason=ERR_R_MALLOC_FAILURE;
596 n=(int)((len>(PEM_BUFSIZE*5))?(PEM_BUFSIZE*5):len);
597 EVP_EncodeUpdate(&ctx,buf,&outl,&(data[j]),n);
598 if ((outl) && (BIO_write(bp,(char *)buf,outl) != outl))
604 EVP_EncodeFinal(&ctx,buf,&outl);
605 if ((outl > 0) && (BIO_write(bp,(char *)buf,outl) != outl)) goto err;
607 if ( (BIO_write(bp,"-----END ",9) != 9) ||
608 (BIO_write(bp,name,nlen) != nlen) ||
609 (BIO_write(bp,"-----\n",6) != 6))
613 PEMerr(PEM_F_PEM_WRITE_BIO,reason);
618 int PEM_read(FILE *fp, char **name, char **header, unsigned char **data,
624 if ((b=BIO_new(BIO_s_file())) == NULL)
626 PEMerr(PEM_F_PEM_READ,ERR_R_BUF_LIB);
629 BIO_set_fp(b,fp,BIO_NOCLOSE);
630 ret=PEM_read_bio(b, name, header, data,len);
636 int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data,
640 int end=0,i,k,bl=0,hl=0,nohead=0;
644 BUF_MEM *dataB,*tmpB;
647 headerB=BUF_MEM_new();
649 if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL))
651 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
658 i=BIO_gets(bp,buf,254);
662 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_NO_START_LINE);
666 while ((i >= 0) && (buf[i] <= ' ')) i--;
667 buf[++i]='\n'; buf[++i]='\0';
669 if (strncmp(buf,"-----BEGIN ",11) == 0)
671 i=strlen(&(buf[11]));
673 if (strncmp(&(buf[11+i-6]),"-----\n",6) != 0)
675 if (!BUF_MEM_grow(nameB,i+9))
677 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
680 memcpy(nameB->data,&(buf[11]),i-6);
681 nameB->data[i-6]='\0';
686 if (!BUF_MEM_grow(headerB,256))
687 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
688 headerB->data[0]='\0';
691 i=BIO_gets(bp,buf,254);
694 while ((i >= 0) && (buf[i] <= ' ')) i--;
695 buf[++i]='\n'; buf[++i]='\0';
697 if (buf[0] == '\n') break;
698 if (!BUF_MEM_grow(headerB,hl+i+9))
699 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
700 if (strncmp(buf,"-----END ",9) == 0)
705 memcpy(&(headerB->data[hl]),buf,i);
706 headerB->data[hl+i]='\0';
711 if (!BUF_MEM_grow(dataB,1024))
712 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
718 i=BIO_gets(bp,buf,254);
721 while ((i >= 0) && (buf[i] <= ' ')) i--;
722 buf[++i]='\n'; buf[++i]='\0';
725 if (strncmp(buf,"-----END ",9) == 0)
728 if (!BUF_MEM_grow(dataB,i+bl+9))
730 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
733 memcpy(&(dataB->data[bl]),buf,i);
734 dataB->data[bl+i]='\0';
739 i=BIO_gets(bp,buf,254);
742 while ((i >= 0) && (buf[i] <= ' ')) i--;
743 buf[++i]='\n'; buf[++i]='\0';
756 i=strlen(nameB->data);
757 if ( (strncmp(buf,"-----END ",9) != 0) ||
758 (strncmp(nameB->data,&(buf[9]),i) != 0) ||
759 (strncmp(&(buf[9+i]),"-----\n",6) != 0))
761 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_END_LINE);
765 EVP_DecodeInit(&ctx);
766 i=EVP_DecodeUpdate(&ctx,
767 (unsigned char *)dataB->data,&bl,
768 (unsigned char *)dataB->data,bl);
771 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
774 i=EVP_DecodeFinal(&ctx,(unsigned char *)&(dataB->data[bl]),&k);
777 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
782 if (bl == 0) goto err;
784 *header=headerB->data;
785 *data=(unsigned char *)dataB->data;
788 OPENSSL_free(headerB);
793 BUF_MEM_free(headerB);
798 /* These functions write a private key in PKCS#8 format: it is a "drop in"
799 * replacement for PEM_write_bio_PrivateKey() and friends. As usual if 'enc'
800 * is NULL then it uses the unencrypted private key form. The 'nid' versions
801 * uses PKCS#5 v1.5 PBE algorithms whereas the others use PKCS#5 v2.0.
804 int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, EVP_PKEY *x, int nid,
805 char *kstr, int klen,
806 pem_password_cb *cb, void *u)
808 return do_pk8pkey(bp, x, 0, nid, NULL, kstr, klen, cb, u);
811 int PEM_write_bio_PKCS8PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
812 char *kstr, int klen,
813 pem_password_cb *cb, void *u)
815 return do_pk8pkey(bp, x, 0, -1, enc, kstr, klen, cb, u);
818 int i2d_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
819 char *kstr, int klen,
820 pem_password_cb *cb, void *u)
822 return do_pk8pkey(bp, x, 1, -1, enc, kstr, klen, cb, u);
825 int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, EVP_PKEY *x, int nid,
826 char *kstr, int klen,
827 pem_password_cb *cb, void *u)
829 return do_pk8pkey(bp, x, 1, nid, NULL, kstr, klen, cb, u);
832 static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc,
833 char *kstr, int klen,
834 pem_password_cb *cb, void *u)
837 PKCS8_PRIV_KEY_INFO *p8inf;
838 char buf[PEM_BUFSIZE];
840 if(!(p8inf = EVP_PKEY2PKCS8(x))) {
841 PEMerr(PEM_F_PEM_WRITE_BIO_PKCS8PRIVATEKEY,
842 PEM_R_ERROR_CONVERTING_PRIVATE_KEY);
845 if(enc || (nid != -1)) {
847 if(!cb) klen = def_callback(buf, PEM_BUFSIZE, 1, u);
848 else klen = cb(buf, PEM_BUFSIZE, 1, u);
850 PEMerr(PEM_F_PEM_WRITE_BIO_PKCS8PRIVATEKEY,
852 PKCS8_PRIV_KEY_INFO_free(p8inf);
858 p8 = PKCS8_encrypt(nid, enc, kstr, klen, NULL, 0, 0, p8inf);
859 if(kstr == buf) memset(buf, 0, klen);
860 PKCS8_PRIV_KEY_INFO_free(p8inf);
861 if(isder) ret = i2d_PKCS8_bio(bp, p8);
862 else ret = PEM_write_bio_PKCS8(bp, p8);
866 if(isder) ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf);
867 else ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(bp, p8inf);
868 PKCS8_PRIV_KEY_INFO_free(p8inf);
873 /* Finally the DER version to read PKCS#8 encrypted private keys. It has to be
874 * here to access the default callback.
877 EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u)
879 PKCS8_PRIV_KEY_INFO *p8inf = NULL;
883 char psbuf[PEM_BUFSIZE];
884 p8 = d2i_PKCS8_bio(bp, NULL);
886 if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
887 else klen=def_callback(psbuf,PEM_BUFSIZE,0,u);
889 PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_BIO, PEM_R_BAD_PASSWORD_READ);
893 p8inf = M_PKCS8_decrypt(p8, psbuf, klen);
895 if(!p8inf) return NULL;
896 ret = EVP_PKCS82PKEY(p8inf);
897 PKCS8_PRIV_KEY_INFO_free(p8inf);
898 if(!ret) return NULL;
900 if(*x) EVP_PKEY_free(*x);
908 int i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
909 char *kstr, int klen,
910 pem_password_cb *cb, void *u)
912 return do_pk8pkey_fp(fp, x, 1, -1, enc, kstr, klen, cb, u);
915 int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid,
916 char *kstr, int klen,
917 pem_password_cb *cb, void *u)
919 return do_pk8pkey_fp(fp, x, 1, nid, NULL, kstr, klen, cb, u);
922 int PEM_write_PKCS8PrivateKey_nid(FILE *fp, EVP_PKEY *x, int nid,
923 char *kstr, int klen,
924 pem_password_cb *cb, void *u)
926 return do_pk8pkey_fp(fp, x, 0, nid, NULL, kstr, klen, cb, u);
929 int PEM_write_PKCS8PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
930 char *kstr, int klen, pem_password_cb *cb, void *u)
932 return do_pk8pkey_fp(fp, x, 0, -1, enc, kstr, klen, cb, u);
935 static int do_pk8pkey_fp(FILE *fp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc,
936 char *kstr, int klen,
937 pem_password_cb *cb, void *u)
941 if(!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
942 PEMerr(PEM_F_PEM_F_DO_PK8KEY_FP,ERR_R_BUF_LIB);
945 ret = do_pk8pkey(bp, x, isder, nid, enc, kstr, klen, cb, u);
950 EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
954 if(!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
955 PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_FP,ERR_R_BUF_LIB);
958 ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u);