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 /* This is a generic callback. If the user data is not NULL it is assumed
125 * to be a null terminated password. Otherwise the default password callback
130 int MS_CALLBACK PEM_cb(char *buf, int len, int verify, void *key)
133 if (key == NULL) return def_callback(buf, len, verify, key);
140 void PEM_proc_type(char *buf, int type)
144 if (type == PEM_TYPE_ENCRYPTED)
146 else if (type == PEM_TYPE_MIC_CLEAR)
148 else if (type == PEM_TYPE_MIC_ONLY)
153 strcat(buf,"Proc-Type: 4,");
158 void PEM_dek_info(char *buf, const char *type, int len, char *str)
160 static unsigned char map[17]="0123456789ABCDEF";
164 strcat(buf,"DEK-Info: ");
168 for (i=0; i<len; i++)
170 buf[j+i*2] =map[(str[i]>>4)&0x0f];
171 buf[j+i*2+1]=map[(str[i] )&0x0f];
178 char *PEM_ASN1_read(char *(*d2i)(), const char *name, FILE *fp, char **x,
179 pem_password_cb *cb, void *u)
184 if ((b=BIO_new(BIO_s_file())) == NULL)
186 PEMerr(PEM_F_PEM_ASN1_READ,ERR_R_BUF_LIB);
189 BIO_set_fp(b,fp,BIO_NOCLOSE);
190 ret=PEM_ASN1_read_bio(d2i,name,b,x,cb,u);
196 static int check_pem(const char *nm, const char *name)
198 /* Normal matching nm and name */
199 if (!strcmp(nm,name)) return 1;
201 /* Make PEM_STRING_EVP_PKEY match any private key */
203 if(!strcmp(nm,PEM_STRING_PKCS8) &&
204 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
206 if(!strcmp(nm,PEM_STRING_PKCS8INF) &&
207 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
209 if(!strcmp(nm,PEM_STRING_RSA) &&
210 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
212 if(!strcmp(nm,PEM_STRING_DSA) &&
213 !strcmp(name,PEM_STRING_EVP_PKEY)) return 1;
215 /* Permit older strings */
217 if(!strcmp(nm,PEM_STRING_X509_OLD) &&
218 !strcmp(name,PEM_STRING_X509)) return 1;
220 if(!strcmp(nm,PEM_STRING_X509_REQ_OLD) &&
221 !strcmp(name,PEM_STRING_X509_REQ)) return 1;
223 /* Allow normal certs to be read as trusted certs */
224 if(!strcmp(nm,PEM_STRING_X509) &&
225 !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
227 if(!strcmp(nm,PEM_STRING_X509_OLD) &&
228 !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1;
233 char *PEM_ASN1_read_bio(char *(*d2i)(), const char *name, BIO *bp, char **x,
234 pem_password_cb *cb, void *u)
236 EVP_CIPHER_INFO cipher;
237 char *nm=NULL,*header=NULL;
238 unsigned char *p=NULL,*data=NULL;
244 if (!PEM_read_bio(bp,&nm,&header,&data,&len)) {
245 if(ERR_GET_REASON(ERR_peek_error()) ==
247 ERR_add_error_data(2, "Expecting: ", name);
250 if(check_pem(nm, name)) break;
255 if (!PEM_get_EVP_CIPHER_INFO(header,&cipher)) goto err;
256 if (!PEM_do_header(&cipher,data,&len,cb,u)) goto err;
258 if (strcmp(name,PEM_STRING_EVP_PKEY) == 0) {
259 if (strcmp(nm,PEM_STRING_RSA) == 0)
260 ret=d2i(EVP_PKEY_RSA,x,&p,len);
261 else if (strcmp(nm,PEM_STRING_DSA) == 0)
262 ret=d2i(EVP_PKEY_DSA,x,&p,len);
263 else if (strcmp(nm,PEM_STRING_PKCS8INF) == 0) {
264 PKCS8_PRIV_KEY_INFO *p8inf;
265 p8inf=d2i_PKCS8_PRIV_KEY_INFO(
266 (PKCS8_PRIV_KEY_INFO **) x, &p, len);
267 ret = (char *)EVP_PKCS82PKEY(p8inf);
268 PKCS8_PRIV_KEY_INFO_free(p8inf);
269 } else if (strcmp(nm,PEM_STRING_PKCS8) == 0) {
270 PKCS8_PRIV_KEY_INFO *p8inf;
273 char psbuf[PEM_BUFSIZE];
274 p8 = d2i_X509_SIG(NULL, &p, len);
276 if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
277 else klen=def_callback(psbuf,PEM_BUFSIZE,0,u);
279 PEMerr(PEM_F_PEM_ASN1_READ_BIO,
280 PEM_R_BAD_PASSWORD_READ);
283 p8inf = M_PKCS8_decrypt(p8, psbuf, klen);
285 if(!p8inf) goto p8err;
286 ret = (char *)EVP_PKCS82PKEY(p8inf);
288 if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
291 PKCS8_PRIV_KEY_INFO_free(p8inf);
293 } else ret=d2i(x,&p,len);
296 PEMerr(PEM_F_PEM_ASN1_READ_BIO,ERR_R_ASN1_LIB);
305 int PEM_ASN1_write(int (*i2d)(), const char *name, FILE *fp, char *x,
306 const EVP_CIPHER *enc, unsigned char *kstr, int klen,
307 pem_password_cb *callback, void *u)
312 if ((b=BIO_new(BIO_s_file())) == NULL)
314 PEMerr(PEM_F_PEM_ASN1_WRITE,ERR_R_BUF_LIB);
317 BIO_set_fp(b,fp,BIO_NOCLOSE);
318 ret=PEM_ASN1_write_bio(i2d,name,b,x,enc,kstr,klen,callback,u);
324 int PEM_ASN1_write_bio(int (*i2d)(), const char *name, BIO *bp, char *x,
325 const EVP_CIPHER *enc, unsigned char *kstr, int klen,
326 pem_password_cb *callback, void *u)
329 int dsize=0,i,j,ret=0;
330 unsigned char *p,*data=NULL;
331 const char *objstr=NULL;
332 char buf[PEM_BUFSIZE];
333 unsigned char key[EVP_MAX_KEY_LENGTH];
334 unsigned char iv[EVP_MAX_IV_LENGTH];
338 objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc));
341 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER);
346 if ((dsize=i2d(x,NULL)) < 0)
348 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
352 /* dzise + 8 bytes are needed */
353 data=(unsigned char *)Malloc((unsigned int)dsize+20);
356 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE);
366 if (callback == NULL)
367 klen=def_callback(buf,PEM_BUFSIZE,1,u);
369 klen=(*callback)(buf,PEM_BUFSIZE,1,u);
372 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_READ_KEY);
375 #ifdef CHARSET_EBCDIC
376 /* Convert the pass phrase from EBCDIC */
377 ebcdic2ascii(buf, buf, klen);
379 kstr=(unsigned char *)buf;
381 RAND_add(data,i,0);/* put in the RSA key. */
382 if (RAND_bytes(iv,8) <= 0) /* Generate a salt */
384 /* The 'iv' is used as the iv and as a salt. It is
385 * NOT taken from the BytesToKey function */
386 EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL);
388 if (kstr == (unsigned char *)buf) memset(buf,0,PEM_BUFSIZE);
391 PEM_proc_type(buf,PEM_TYPE_ENCRYPTED);
392 PEM_dek_info(buf,objstr,8,(char *)iv);
395 EVP_EncryptInit(&ctx,enc,key,iv);
396 EVP_EncryptUpdate(&ctx,data,&j,data,i);
397 EVP_EncryptFinal(&ctx,&(data[j]),&i);
406 i=PEM_write_bio(bp,name,buf,data,i);
409 memset(key,0,sizeof(key));
410 memset(iv,0,sizeof(iv));
411 memset((char *)&ctx,0,sizeof(ctx));
412 memset(buf,0,PEM_BUFSIZE);
413 memset(data,0,(unsigned int)dsize);
418 int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen,
419 pem_password_cb *callback,void *u)
424 unsigned char key[EVP_MAX_KEY_LENGTH];
425 char buf[PEM_BUFSIZE];
429 if (cipher->cipher == NULL) return(1);
430 if (callback == NULL)
431 klen=def_callback(buf,PEM_BUFSIZE,0,u);
433 klen=callback(buf,PEM_BUFSIZE,0,u);
436 PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_PASSWORD_READ);
439 #ifdef CHARSET_EBCDIC
440 /* Convert the pass phrase from EBCDIC */
441 ebcdic2ascii(buf, buf, klen);
444 EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]),
445 (unsigned char *)buf,klen,1,key,NULL);
448 EVP_DecryptInit(&ctx,cipher->cipher,key,&(cipher->iv[0]));
449 EVP_DecryptUpdate(&ctx,data,&i,data,j);
450 o=EVP_DecryptFinal(&ctx,&(data[i]),&j);
451 EVP_CIPHER_CTX_cleanup(&ctx);
452 memset((char *)buf,0,sizeof(buf));
453 memset((char *)key,0,sizeof(key));
457 PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_DECRYPT);
464 int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher)
467 const EVP_CIPHER *enc=NULL;
471 if ((header == NULL) || (*header == '\0') || (*header == '\n'))
473 if (strncmp(header,"Proc-Type: ",11) != 0)
474 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_PROC_TYPE); return(0); }
476 if (*header != '4') return(0); header++;
477 if (*header != ',') return(0); header++;
478 if (strncmp(header,"ENCRYPTED",9) != 0)
479 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_ENCRYPTED); return(0); }
480 for (; (*header != '\n') && (*header != '\0'); header++)
483 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_SHORT_HEADER); return(0); }
485 if (strncmp(header,"DEK-Info: ",10) != 0)
486 { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_DEK_INFO); return(0); }
493 #ifndef CHARSET_EBCDIC
494 if (!( ((c >= 'A') && (c <= 'Z')) || (c == '-') ||
495 ((c >= '0') && (c <= '9'))))
498 if (!( isupper(c) || (c == '-') ||
506 cipher->cipher=enc=EVP_get_cipherbyname(p);
512 PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_UNSUPPORTED_ENCRYPTION);
515 if (!load_iv((unsigned char **)&header,&(cipher->iv[0]),8)) return(0);
520 static int load_iv(unsigned char **fromp, unsigned char *to, int num)
526 for (i=0; i<num; i++) to[i]=0;
528 for (i=0; i<num; i++)
530 if ((*from >= '0') && (*from <= '9'))
532 else if ((*from >= 'A') && (*from <= 'F'))
534 else if ((*from >= 'a') && (*from <= 'f'))
538 PEMerr(PEM_F_LOAD_IV,PEM_R_BAD_IV_CHARS);
542 to[i/2]|=v<<(long)((!(i&1))*4);
550 int PEM_write(FILE *fp, char *name, char *header, unsigned char *data,
556 if ((b=BIO_new(BIO_s_file())) == NULL)
558 PEMerr(PEM_F_PEM_WRITE,ERR_R_BUF_LIB);
561 BIO_set_fp(b,fp,BIO_NOCLOSE);
562 ret=PEM_write_bio(b, name, header, data,len);
568 int PEM_write_bio(BIO *bp, const char *name, char *header, unsigned char *data,
574 int reason=ERR_R_BUF_LIB;
576 EVP_EncodeInit(&ctx);
579 if ( (BIO_write(bp,"-----BEGIN ",11) != 11) ||
580 (BIO_write(bp,name,nlen) != nlen) ||
581 (BIO_write(bp,"-----\n",6) != 6))
587 if ( (BIO_write(bp,header,i) != i) ||
588 (BIO_write(bp,"\n",1) != 1))
592 buf=(unsigned char *)Malloc(PEM_BUFSIZE*8);
595 reason=ERR_R_MALLOC_FAILURE;
602 n=(int)((len>(PEM_BUFSIZE*5))?(PEM_BUFSIZE*5):len);
603 EVP_EncodeUpdate(&ctx,buf,&outl,&(data[j]),n);
604 if ((outl) && (BIO_write(bp,(char *)buf,outl) != outl))
610 EVP_EncodeFinal(&ctx,buf,&outl);
611 if ((outl > 0) && (BIO_write(bp,(char *)buf,outl) != outl)) goto err;
613 if ( (BIO_write(bp,"-----END ",9) != 9) ||
614 (BIO_write(bp,name,nlen) != nlen) ||
615 (BIO_write(bp,"-----\n",6) != 6))
619 PEMerr(PEM_F_PEM_WRITE_BIO,reason);
624 int PEM_read(FILE *fp, char **name, char **header, unsigned char **data,
630 if ((b=BIO_new(BIO_s_file())) == NULL)
632 PEMerr(PEM_F_PEM_READ,ERR_R_BUF_LIB);
635 BIO_set_fp(b,fp,BIO_NOCLOSE);
636 ret=PEM_read_bio(b, name, header, data,len);
642 int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data,
646 int end=0,i,k,bl=0,hl=0,nohead=0;
650 BUF_MEM *dataB,*tmpB;
653 headerB=BUF_MEM_new();
655 if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL))
657 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
664 i=BIO_gets(bp,buf,254);
668 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_NO_START_LINE);
672 while ((i >= 0) && (buf[i] <= ' ')) i--;
673 buf[++i]='\n'; buf[++i]='\0';
675 if (strncmp(buf,"-----BEGIN ",11) == 0)
677 i=strlen(&(buf[11]));
679 if (strncmp(&(buf[11+i-6]),"-----\n",6) != 0)
681 if (!BUF_MEM_grow(nameB,i+9))
683 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
686 memcpy(nameB->data,&(buf[11]),i-6);
687 nameB->data[i-6]='\0';
692 if (!BUF_MEM_grow(headerB,256))
693 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
694 headerB->data[0]='\0';
697 i=BIO_gets(bp,buf,254);
700 while ((i >= 0) && (buf[i] <= ' ')) i--;
701 buf[++i]='\n'; buf[++i]='\0';
703 if (buf[0] == '\n') break;
704 if (!BUF_MEM_grow(headerB,hl+i+9))
705 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
706 if (strncmp(buf,"-----END ",9) == 0)
711 memcpy(&(headerB->data[hl]),buf,i);
712 headerB->data[hl+i]='\0';
717 if (!BUF_MEM_grow(dataB,1024))
718 { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; }
724 i=BIO_gets(bp,buf,254);
727 while ((i >= 0) && (buf[i] <= ' ')) i--;
728 buf[++i]='\n'; buf[++i]='\0';
731 if (strncmp(buf,"-----END ",9) == 0)
734 if (!BUF_MEM_grow(dataB,i+bl+9))
736 PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE);
739 memcpy(&(dataB->data[bl]),buf,i);
740 dataB->data[bl+i]='\0';
745 i=BIO_gets(bp,buf,254);
748 while ((i >= 0) && (buf[i] <= ' ')) i--;
749 buf[++i]='\n'; buf[++i]='\0';
762 i=strlen(nameB->data);
763 if ( (strncmp(buf,"-----END ",9) != 0) ||
764 (strncmp(nameB->data,&(buf[9]),i) != 0) ||
765 (strncmp(&(buf[9+i]),"-----\n",6) != 0))
767 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_END_LINE);
771 EVP_DecodeInit(&ctx);
772 i=EVP_DecodeUpdate(&ctx,
773 (unsigned char *)dataB->data,&bl,
774 (unsigned char *)dataB->data,bl);
777 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
780 i=EVP_DecodeFinal(&ctx,(unsigned char *)&(dataB->data[bl]),&k);
783 PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE);
788 if (bl == 0) goto err;
790 *header=headerB->data;
791 *data=(unsigned char *)dataB->data;
799 BUF_MEM_free(headerB);
804 /* These functions write a private key in PKCS#8 format: it is a "drop in"
805 * replacement for PEM_write_bio_PrivateKey() and friends. As usual if 'enc'
806 * is NULL then it uses the unencrypted private key form. The 'nid' versions
807 * uses PKCS#5 v1.5 PBE algorithms whereas the others use PKCS#5 v2.0.
810 int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, EVP_PKEY *x, int nid,
811 char *kstr, int klen,
812 pem_password_cb *cb, void *u)
814 return do_pk8pkey(bp, x, 0, nid, NULL, kstr, klen, cb, u);
817 int PEM_write_bio_PKCS8PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
818 char *kstr, int klen,
819 pem_password_cb *cb, void *u)
821 return do_pk8pkey(bp, x, 0, -1, enc, kstr, klen, cb, u);
824 int i2d_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
825 char *kstr, int klen,
826 pem_password_cb *cb, void *u)
828 return do_pk8pkey(bp, x, 1, -1, enc, kstr, klen, cb, u);
831 int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, EVP_PKEY *x, int nid,
832 char *kstr, int klen,
833 pem_password_cb *cb, void *u)
835 return do_pk8pkey(bp, x, 1, nid, NULL, kstr, klen, cb, u);
838 static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc,
839 char *kstr, int klen,
840 pem_password_cb *cb, void *u)
843 PKCS8_PRIV_KEY_INFO *p8inf;
844 char buf[PEM_BUFSIZE];
846 if(!(p8inf = EVP_PKEY2PKCS8(x))) {
847 PEMerr(PEM_F_PEM_WRITE_BIO_PKCS8PRIVATEKEY,
848 PEM_R_ERROR_CONVERTING_PRIVATE_KEY);
851 if(enc || (nid != -1)) {
853 if(!cb) klen = def_callback(buf, PEM_BUFSIZE, 1, u);
854 else klen = cb(buf, PEM_BUFSIZE, 1, u);
856 PEMerr(PEM_F_PEM_WRITE_BIO_PKCS8PRIVATEKEY,
858 PKCS8_PRIV_KEY_INFO_free(p8inf);
864 p8 = PKCS8_encrypt(nid, enc, kstr, klen, NULL, 0, 0, p8inf);
865 if(kstr == buf) memset(buf, 0, klen);
866 PKCS8_PRIV_KEY_INFO_free(p8inf);
867 if(isder) ret = i2d_PKCS8_bio(bp, p8);
868 else ret = PEM_write_bio_PKCS8(bp, p8);
872 if(isder) ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf);
873 else ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(bp, p8inf);
874 PKCS8_PRIV_KEY_INFO_free(p8inf);
879 /* Finally the DER version to read PKCS#8 encrypted private keys. It has to be
880 * here to access the default callback.
883 EVP_PKEY *d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u)
885 PKCS8_PRIV_KEY_INFO *p8inf = NULL;
889 char psbuf[PEM_BUFSIZE];
890 p8 = d2i_PKCS8_bio(bp, NULL);
892 if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
893 else klen=def_callback(psbuf,PEM_BUFSIZE,0,u);
895 PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_BIO, PEM_R_BAD_PASSWORD_READ);
899 p8inf = M_PKCS8_decrypt(p8, psbuf, klen);
901 if(!p8inf) return NULL;
902 ret = EVP_PKCS82PKEY(p8inf);
903 PKCS8_PRIV_KEY_INFO_free(p8inf);
904 if(!ret) return NULL;
906 if(*x) EVP_PKEY_free(*x);
914 int i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
915 char *kstr, int klen,
916 pem_password_cb *cb, void *u)
918 return do_pk8pkey_fp(fp, x, 1, -1, enc, kstr, klen, cb, u);
921 int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid,
922 char *kstr, int klen,
923 pem_password_cb *cb, void *u)
925 return do_pk8pkey_fp(fp, x, 1, nid, NULL, kstr, klen, cb, u);
928 int PEM_write_PKCS8PrivateKey_nid(FILE *fp, EVP_PKEY *x, int nid,
929 char *kstr, int klen,
930 pem_password_cb *cb, void *u)
932 return do_pk8pkey_fp(fp, x, 0, nid, NULL, kstr, klen, cb, u);
935 int PEM_write_PKCS8PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
936 char *kstr, int klen, pem_password_cb *cb, void *u)
938 return do_pk8pkey_fp(fp, x, 0, -1, enc, kstr, klen, cb, u);
941 static int do_pk8pkey_fp(FILE *fp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc,
942 char *kstr, int klen,
943 pem_password_cb *cb, void *u)
947 if(!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
948 PEMerr(PEM_F_PEM_F_DO_PK8KEY_FP,ERR_R_BUF_LIB);
951 ret = do_pk8pkey(bp, x, isder, nid, enc, kstr, klen, cb, u);
956 EVP_PKEY *d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
960 if(!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) {
961 PEMerr(PEM_F_D2I_PKCS8PRIVATEKEY_FP,ERR_R_BUF_LIB);
964 ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u);