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.]
62 #include <openssl/buffer.h>
63 #include <openssl/objects.h>
64 #include <openssl/evp.h>
65 #include <openssl/rand.h>
66 #include <openssl/x509.h>
67 #include <openssl/pem.h>
68 #include <openssl/pkcs12.h>
69 #include "asn1_locl.h"
70 #ifndef OPENSSL_NO_DES
71 # include <openssl/des.h>
73 #ifndef OPENSSL_NO_ENGINE
74 # include <openssl/engine.h>
77 const char PEM_version
[] = "PEM" OPENSSL_VERSION_PTEXT
;
81 static int load_iv(char **fromp
, unsigned char *to
, int num
);
82 static int check_pem(const char *nm
, const char *name
);
83 int pem_check_suffix(const char *pem_str
, const char *suffix
);
85 int PEM_def_callback(char *buf
, int num
, int w
, void *key
)
87 #ifdef OPENSSL_NO_FP_API
89 * We should not ever call the default callback routine from windows.
91 PEMerr(PEM_F_PEM_DEF_CALLBACK
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
98 i
= (i
> num
) ? num
: i
;
103 prompt
= EVP_get_pw_prompt();
105 prompt
= "Enter PEM pass phrase:";
108 i
= EVP_read_pw_string_min(buf
, MIN_LENGTH
, num
, prompt
, w
);
110 PEMerr(PEM_F_PEM_DEF_CALLBACK
, PEM_R_PROBLEMS_GETTING_PASSWORD
);
111 memset(buf
, 0, (unsigned int)num
);
115 if (j
< MIN_LENGTH
) {
117 "phrase is too short, needs to be at least %d chars\n",
126 void PEM_proc_type(char *buf
, int type
)
130 if (type
== PEM_TYPE_ENCRYPTED
)
132 else if (type
== PEM_TYPE_MIC_CLEAR
)
134 else if (type
== PEM_TYPE_MIC_ONLY
)
139 BUF_strlcat(buf
, "Proc-Type: 4,", PEM_BUFSIZE
);
140 BUF_strlcat(buf
, str
, PEM_BUFSIZE
);
141 BUF_strlcat(buf
, "\n", PEM_BUFSIZE
);
144 void PEM_dek_info(char *buf
, const char *type
, int len
, char *str
)
146 static const unsigned char map
[17] = "0123456789ABCDEF";
150 BUF_strlcat(buf
, "DEK-Info: ", PEM_BUFSIZE
);
151 BUF_strlcat(buf
, type
, PEM_BUFSIZE
);
152 BUF_strlcat(buf
, ",", PEM_BUFSIZE
);
154 if (j
+ (len
* 2) + 1 > PEM_BUFSIZE
)
156 for (i
= 0; i
< len
; i
++) {
157 buf
[j
+ i
* 2] = map
[(str
[i
] >> 4) & 0x0f];
158 buf
[j
+ i
* 2 + 1] = map
[(str
[i
]) & 0x0f];
160 buf
[j
+ i
* 2] = '\n';
161 buf
[j
+ i
* 2 + 1] = '\0';
164 #ifndef OPENSSL_NO_FP_API
165 void *PEM_ASN1_read(d2i_of_void
*d2i
, const char *name
, FILE *fp
, void **x
,
166 pem_password_cb
*cb
, void *u
)
171 if ((b
= BIO_new(BIO_s_file())) == NULL
) {
172 PEMerr(PEM_F_PEM_ASN1_READ
, ERR_R_BUF_LIB
);
175 BIO_set_fp(b
, fp
, BIO_NOCLOSE
);
176 ret
= PEM_ASN1_read_bio(d2i
, name
, b
, x
, cb
, u
);
182 static int check_pem(const char *nm
, const char *name
)
184 /* Normal matching nm and name */
185 if (!strcmp(nm
, name
))
188 /* Make PEM_STRING_EVP_PKEY match any private key */
190 if (!strcmp(name
, PEM_STRING_EVP_PKEY
)) {
192 const EVP_PKEY_ASN1_METHOD
*ameth
;
193 if (!strcmp(nm
, PEM_STRING_PKCS8
))
195 if (!strcmp(nm
, PEM_STRING_PKCS8INF
))
197 slen
= pem_check_suffix(nm
, "PRIVATE KEY");
200 * NB: ENGINE implementations wont contain a deprecated old
201 * private key decode function so don't look for them.
203 ameth
= EVP_PKEY_asn1_find_str(NULL
, nm
, slen
);
204 if (ameth
&& ameth
->old_priv_decode
)
210 if (!strcmp(name
, PEM_STRING_PARAMETERS
)) {
212 const EVP_PKEY_ASN1_METHOD
*ameth
;
213 slen
= pem_check_suffix(nm
, "PARAMETERS");
216 ameth
= EVP_PKEY_asn1_find_str(&e
, nm
, slen
);
219 if (ameth
->param_decode
)
223 #ifndef OPENSSL_NO_ENGINE
232 /* If reading DH parameters handle X9.42 DH format too */
233 if (!strcmp(nm
, PEM_STRING_DHXPARAMS
) &&
234 !strcmp(name
, PEM_STRING_DHPARAMS
))
237 /* Permit older strings */
239 if (!strcmp(nm
, PEM_STRING_X509_OLD
) && !strcmp(name
, PEM_STRING_X509
))
242 if (!strcmp(nm
, PEM_STRING_X509_REQ_OLD
) &&
243 !strcmp(name
, PEM_STRING_X509_REQ
))
246 /* Allow normal certs to be read as trusted certs */
247 if (!strcmp(nm
, PEM_STRING_X509
) &&
248 !strcmp(name
, PEM_STRING_X509_TRUSTED
))
251 if (!strcmp(nm
, PEM_STRING_X509_OLD
) &&
252 !strcmp(name
, PEM_STRING_X509_TRUSTED
))
255 /* Some CAs use PKCS#7 with CERTIFICATE headers */
256 if (!strcmp(nm
, PEM_STRING_X509
) && !strcmp(name
, PEM_STRING_PKCS7
))
259 if (!strcmp(nm
, PEM_STRING_PKCS7_SIGNED
) &&
260 !strcmp(name
, PEM_STRING_PKCS7
))
263 #ifndef OPENSSL_NO_CMS
264 if (!strcmp(nm
, PEM_STRING_X509
) && !strcmp(name
, PEM_STRING_CMS
))
266 /* Allow CMS to be read from PKCS#7 headers */
267 if (!strcmp(nm
, PEM_STRING_PKCS7
) && !strcmp(name
, PEM_STRING_CMS
))
274 int PEM_bytes_read_bio(unsigned char **pdata
, long *plen
, char **pnm
,
275 const char *name
, BIO
*bp
, pem_password_cb
*cb
,
278 EVP_CIPHER_INFO cipher
;
279 char *nm
= NULL
, *header
= NULL
;
280 unsigned char *data
= NULL
;
285 if (!PEM_read_bio(bp
, &nm
, &header
, &data
, &len
)) {
286 if (ERR_GET_REASON(ERR_peek_error()) == PEM_R_NO_START_LINE
)
287 ERR_add_error_data(2, "Expecting: ", name
);
290 if (check_pem(nm
, name
))
293 OPENSSL_free(header
);
296 if (!PEM_get_EVP_CIPHER_INFO(header
, &cipher
))
298 if (!PEM_do_header(&cipher
, data
, &len
, cb
, u
))
312 OPENSSL_free(header
);
318 #ifndef OPENSSL_NO_FP_API
319 int PEM_ASN1_write(i2d_of_void
*i2d
, const char *name
, FILE *fp
,
320 void *x
, const EVP_CIPHER
*enc
, unsigned char *kstr
,
321 int klen
, pem_password_cb
*callback
, void *u
)
326 if ((b
= BIO_new(BIO_s_file())) == NULL
) {
327 PEMerr(PEM_F_PEM_ASN1_WRITE
, ERR_R_BUF_LIB
);
330 BIO_set_fp(b
, fp
, BIO_NOCLOSE
);
331 ret
= PEM_ASN1_write_bio(i2d
, name
, b
, x
, enc
, kstr
, klen
, callback
, u
);
337 int PEM_ASN1_write_bio(i2d_of_void
*i2d
, const char *name
, BIO
*bp
,
338 void *x
, const EVP_CIPHER
*enc
, unsigned char *kstr
,
339 int klen
, pem_password_cb
*callback
, void *u
)
342 int dsize
= 0, i
, j
, ret
= 0;
343 unsigned char *p
, *data
= NULL
;
344 const char *objstr
= NULL
;
345 char buf
[PEM_BUFSIZE
];
346 unsigned char key
[EVP_MAX_KEY_LENGTH
];
347 unsigned char iv
[EVP_MAX_IV_LENGTH
];
350 objstr
= OBJ_nid2sn(EVP_CIPHER_nid(enc
));
351 if (objstr
== NULL
) {
352 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO
, PEM_R_UNSUPPORTED_CIPHER
);
357 if ((dsize
= i2d(x
, NULL
)) < 0) {
358 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO
, ERR_R_ASN1_LIB
);
362 /* dzise + 8 bytes are needed */
363 /* actually it needs the cipher block size extra... */
364 data
= (unsigned char *)OPENSSL_malloc((unsigned int)dsize
+ 20);
366 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO
, ERR_R_MALLOC_FAILURE
);
374 if (callback
== NULL
)
375 klen
= PEM_def_callback(buf
, PEM_BUFSIZE
, 1, u
);
377 klen
= (*callback
) (buf
, PEM_BUFSIZE
, 1, u
);
379 PEMerr(PEM_F_PEM_ASN1_WRITE_BIO
, PEM_R_READ_KEY
);
382 #ifdef CHARSET_EBCDIC
383 /* Convert the pass phrase from EBCDIC */
384 ebcdic2ascii(buf
, buf
, klen
);
386 kstr
= (unsigned char *)buf
;
388 RAND_add(data
, i
, 0); /* put in the RSA key. */
389 OPENSSL_assert(enc
->iv_len
<= (int)sizeof(iv
));
390 if (RAND_pseudo_bytes(iv
, enc
->iv_len
) < 0) /* Generate a salt */
393 * The 'iv' is used as the iv and as a salt. It is NOT taken from
394 * the BytesToKey function
396 if (!EVP_BytesToKey(enc
, EVP_md5(), iv
, kstr
, klen
, 1, key
, NULL
))
399 if (kstr
== (unsigned char *)buf
)
400 OPENSSL_cleanse(buf
, PEM_BUFSIZE
);
402 OPENSSL_assert(strlen(objstr
) + 23 + 2 * enc
->iv_len
+ 13 <=
406 PEM_proc_type(buf
, PEM_TYPE_ENCRYPTED
);
407 PEM_dek_info(buf
, objstr
, enc
->iv_len
, (char *)iv
);
410 EVP_CIPHER_CTX_init(&ctx
);
412 if (!EVP_EncryptInit_ex(&ctx
, enc
, NULL
, key
, iv
)
413 || !EVP_EncryptUpdate(&ctx
, data
, &j
, data
, i
)
414 || !EVP_EncryptFinal_ex(&ctx
, &(data
[j
]), &i
))
416 EVP_CIPHER_CTX_cleanup(&ctx
);
424 i
= PEM_write_bio(bp
, name
, buf
, data
, i
);
428 OPENSSL_cleanse(key
, sizeof(key
));
429 OPENSSL_cleanse(iv
, sizeof(iv
));
430 OPENSSL_cleanse((char *)&ctx
, sizeof(ctx
));
431 OPENSSL_cleanse(buf
, PEM_BUFSIZE
);
433 OPENSSL_cleanse(data
, (unsigned int)dsize
);
439 int PEM_do_header(EVP_CIPHER_INFO
*cipher
, unsigned char *data
, long *plen
,
440 pem_password_cb
*callback
, void *u
)
442 int i
= 0, j
, o
, klen
;
445 unsigned char key
[EVP_MAX_KEY_LENGTH
];
446 char buf
[PEM_BUFSIZE
];
450 if (cipher
->cipher
== NULL
)
452 if (callback
== NULL
)
453 klen
= PEM_def_callback(buf
, PEM_BUFSIZE
, 0, u
);
455 klen
= callback(buf
, PEM_BUFSIZE
, 0, u
);
457 PEMerr(PEM_F_PEM_DO_HEADER
, PEM_R_BAD_PASSWORD_READ
);
460 #ifdef CHARSET_EBCDIC
461 /* Convert the pass phrase from EBCDIC */
462 ebcdic2ascii(buf
, buf
, klen
);
465 if (!EVP_BytesToKey(cipher
->cipher
, EVP_md5(), &(cipher
->iv
[0]),
466 (unsigned char *)buf
, klen
, 1, key
, NULL
))
470 EVP_CIPHER_CTX_init(&ctx
);
471 o
= EVP_DecryptInit_ex(&ctx
, cipher
->cipher
, NULL
, key
, &(cipher
->iv
[0]));
473 o
= EVP_DecryptUpdate(&ctx
, data
, &i
, data
, j
);
475 o
= EVP_DecryptFinal_ex(&ctx
, &(data
[i
]), &j
);
476 EVP_CIPHER_CTX_cleanup(&ctx
);
477 OPENSSL_cleanse((char *)buf
, sizeof(buf
));
478 OPENSSL_cleanse((char *)key
, sizeof(key
));
482 PEMerr(PEM_F_PEM_DO_HEADER
, PEM_R_BAD_DECRYPT
);
489 int PEM_get_EVP_CIPHER_INFO(char *header
, EVP_CIPHER_INFO
*cipher
)
491 const EVP_CIPHER
*enc
= NULL
;
493 char **header_pp
= &header
;
495 cipher
->cipher
= NULL
;
496 if ((header
== NULL
) || (*header
== '\0') || (*header
== '\n'))
498 if (strncmp(header
, "Proc-Type: ", 11) != 0) {
499 PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO
, PEM_R_NOT_PROC_TYPE
);
509 if (strncmp(header
, "ENCRYPTED", 9) != 0) {
510 PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO
, PEM_R_NOT_ENCRYPTED
);
513 for (; (*header
!= '\n') && (*header
!= '\0'); header
++) ;
514 if (*header
== '\0') {
515 PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO
, PEM_R_SHORT_HEADER
);
519 if (strncmp(header
, "DEK-Info: ", 10) != 0) {
520 PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO
, PEM_R_NOT_DEK_INFO
);
528 #ifndef CHARSET_EBCDIC
529 if (!(((c
>= 'A') && (c
<= 'Z')) || (c
== '-') ||
530 ((c
>= '0') && (c
<= '9'))))
533 if (!(isupper(c
) || (c
== '-') || isdigit(c
)))
539 cipher
->cipher
= enc
= EVP_get_cipherbyname(p
);
544 PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO
, PEM_R_UNSUPPORTED_ENCRYPTION
);
547 if (!load_iv(header_pp
, &(cipher
->iv
[0]), enc
->iv_len
))
553 static int load_iv(char **fromp
, unsigned char *to
, int num
)
559 for (i
= 0; i
< num
; i
++)
562 for (i
= 0; i
< num
; i
++) {
563 if ((*from
>= '0') && (*from
<= '9'))
565 else if ((*from
>= 'A') && (*from
<= 'F'))
566 v
= *from
- 'A' + 10;
567 else if ((*from
>= 'a') && (*from
<= 'f'))
568 v
= *from
- 'a' + 10;
570 PEMerr(PEM_F_LOAD_IV
, PEM_R_BAD_IV_CHARS
);
574 to
[i
/ 2] |= v
<< (long)((!(i
& 1)) * 4);
581 #ifndef OPENSSL_NO_FP_API
582 int PEM_write(FILE *fp
, const char *name
, const char *header
,
583 const unsigned char *data
, long len
)
588 if ((b
= BIO_new(BIO_s_file())) == NULL
) {
589 PEMerr(PEM_F_PEM_WRITE
, ERR_R_BUF_LIB
);
592 BIO_set_fp(b
, fp
, BIO_NOCLOSE
);
593 ret
= PEM_write_bio(b
, name
, header
, data
, len
);
599 int PEM_write_bio(BIO
*bp
, const char *name
, const char *header
,
600 const unsigned char *data
, long len
)
602 int nlen
, n
, i
, j
, outl
;
603 unsigned char *buf
= NULL
;
605 int reason
= ERR_R_BUF_LIB
;
607 EVP_EncodeInit(&ctx
);
610 if ((BIO_write(bp
, "-----BEGIN ", 11) != 11) ||
611 (BIO_write(bp
, name
, nlen
) != nlen
) ||
612 (BIO_write(bp
, "-----\n", 6) != 6))
617 if ((BIO_write(bp
, header
, i
) != i
) || (BIO_write(bp
, "\n", 1) != 1))
621 buf
= OPENSSL_malloc(PEM_BUFSIZE
* 8);
623 reason
= ERR_R_MALLOC_FAILURE
;
629 n
= (int)((len
> (PEM_BUFSIZE
* 5)) ? (PEM_BUFSIZE
* 5) : len
);
630 EVP_EncodeUpdate(&ctx
, buf
, &outl
, &(data
[j
]), n
);
631 if ((outl
) && (BIO_write(bp
, (char *)buf
, outl
) != outl
))
637 EVP_EncodeFinal(&ctx
, buf
, &outl
);
638 if ((outl
> 0) && (BIO_write(bp
, (char *)buf
, outl
) != outl
))
640 OPENSSL_cleanse(buf
, PEM_BUFSIZE
* 8);
643 if ((BIO_write(bp
, "-----END ", 9) != 9) ||
644 (BIO_write(bp
, name
, nlen
) != nlen
) ||
645 (BIO_write(bp
, "-----\n", 6) != 6))
650 OPENSSL_cleanse(buf
, PEM_BUFSIZE
* 8);
653 PEMerr(PEM_F_PEM_WRITE_BIO
, reason
);
657 #ifndef OPENSSL_NO_FP_API
658 int PEM_read(FILE *fp
, char **name
, char **header
, unsigned char **data
,
664 if ((b
= BIO_new(BIO_s_file())) == NULL
) {
665 PEMerr(PEM_F_PEM_READ
, ERR_R_BUF_LIB
);
668 BIO_set_fp(b
, fp
, BIO_NOCLOSE
);
669 ret
= PEM_read_bio(b
, name
, header
, data
, len
);
675 int PEM_read_bio(BIO
*bp
, char **name
, char **header
, unsigned char **data
,
679 int end
= 0, i
, k
, bl
= 0, hl
= 0, nohead
= 0;
683 BUF_MEM
*dataB
, *tmpB
;
685 nameB
= BUF_MEM_new();
686 headerB
= BUF_MEM_new();
687 dataB
= BUF_MEM_new();
688 if ((nameB
== NULL
) || (headerB
== NULL
) || (dataB
== NULL
)) {
690 BUF_MEM_free(headerB
);
692 PEMerr(PEM_F_PEM_READ_BIO
, ERR_R_MALLOC_FAILURE
);
698 i
= BIO_gets(bp
, buf
, 254);
701 PEMerr(PEM_F_PEM_READ_BIO
, PEM_R_NO_START_LINE
);
705 while ((i
>= 0) && (buf
[i
] <= ' '))
710 if (strncmp(buf
, "-----BEGIN ", 11) == 0) {
711 i
= strlen(&(buf
[11]));
713 if (strncmp(&(buf
[11 + i
- 6]), "-----\n", 6) != 0)
715 if (!BUF_MEM_grow(nameB
, i
+ 9)) {
716 PEMerr(PEM_F_PEM_READ_BIO
, ERR_R_MALLOC_FAILURE
);
719 memcpy(nameB
->data
, &(buf
[11]), i
- 6);
720 nameB
->data
[i
- 6] = '\0';
725 if (!BUF_MEM_grow(headerB
, 256)) {
726 PEMerr(PEM_F_PEM_READ_BIO
, ERR_R_MALLOC_FAILURE
);
729 headerB
->data
[0] = '\0';
731 i
= BIO_gets(bp
, buf
, 254);
735 while ((i
>= 0) && (buf
[i
] <= ' '))
742 if (!BUF_MEM_grow(headerB
, hl
+ i
+ 9)) {
743 PEMerr(PEM_F_PEM_READ_BIO
, ERR_R_MALLOC_FAILURE
);
746 if (strncmp(buf
, "-----END ", 9) == 0) {
750 memcpy(&(headerB
->data
[hl
]), buf
, i
);
751 headerB
->data
[hl
+ i
] = '\0';
756 if (!BUF_MEM_grow(dataB
, 1024)) {
757 PEMerr(PEM_F_PEM_READ_BIO
, ERR_R_MALLOC_FAILURE
);
760 dataB
->data
[0] = '\0';
763 i
= BIO_gets(bp
, buf
, 254);
767 while ((i
>= 0) && (buf
[i
] <= ' '))
774 if (strncmp(buf
, "-----END ", 9) == 0)
778 if (!BUF_MEM_grow_clean(dataB
, i
+ bl
+ 9)) {
779 PEMerr(PEM_F_PEM_READ_BIO
, ERR_R_MALLOC_FAILURE
);
782 memcpy(&(dataB
->data
[bl
]), buf
, i
);
783 dataB
->data
[bl
+ i
] = '\0';
787 i
= BIO_gets(bp
, buf
, 254);
791 while ((i
>= 0) && (buf
[i
] <= ' '))
805 i
= strlen(nameB
->data
);
806 if ((strncmp(buf
, "-----END ", 9) != 0) ||
807 (strncmp(nameB
->data
, &(buf
[9]), i
) != 0) ||
808 (strncmp(&(buf
[9 + i
]), "-----\n", 6) != 0)) {
809 PEMerr(PEM_F_PEM_READ_BIO
, PEM_R_BAD_END_LINE
);
813 EVP_DecodeInit(&ctx
);
814 i
= EVP_DecodeUpdate(&ctx
,
815 (unsigned char *)dataB
->data
, &bl
,
816 (unsigned char *)dataB
->data
, bl
);
818 PEMerr(PEM_F_PEM_READ_BIO
, PEM_R_BAD_BASE64_DECODE
);
821 i
= EVP_DecodeFinal(&ctx
, (unsigned char *)&(dataB
->data
[bl
]), &k
);
823 PEMerr(PEM_F_PEM_READ_BIO
, PEM_R_BAD_BASE64_DECODE
);
831 *header
= headerB
->data
;
832 *data
= (unsigned char *)dataB
->data
;
835 OPENSSL_free(headerB
);
840 BUF_MEM_free(headerB
);
846 * Check pem string and return prefix length. If for example the pem_str ==
847 * "RSA PRIVATE KEY" and suffix = "PRIVATE KEY" the return value is 3 for the
851 int pem_check_suffix(const char *pem_str
, const char *suffix
)
853 int pem_len
= strlen(pem_str
);
854 int suffix_len
= strlen(suffix
);
856 if (suffix_len
+ 1 >= pem_len
)
858 p
= pem_str
+ pem_len
- suffix_len
;
859 if (strcmp(p
, suffix
))