diff options
Diffstat (limited to 'openssl/crypto/pem/pem_lib.c')
| -rw-r--r-- | openssl/crypto/pem/pem_lib.c | 1452 |
1 files changed, 729 insertions, 723 deletions
diff --git a/openssl/crypto/pem/pem_lib.c b/openssl/crypto/pem/pem_lib.c index 5a421fc4b..a29821aab 100644 --- a/openssl/crypto/pem/pem_lib.c +++ b/openssl/crypto/pem/pem_lib.c @@ -5,21 +5,21 @@ * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. - * + * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * + * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. - * + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -34,10 +34,10 @@ * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from + * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * + * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -49,7 +49,7 @@ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. - * + * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence @@ -68,792 +68,798 @@ #include <openssl/pkcs12.h> #include "asn1_locl.h" #ifndef OPENSSL_NO_DES -#include <openssl/des.h> +# include <openssl/des.h> #endif #ifndef OPENSSL_NO_ENGINE -#include <openssl/engine.h> +# include <openssl/engine.h> #endif -const char PEM_version[]="PEM" OPENSSL_VERSION_PTEXT; +const char PEM_version[] = "PEM" OPENSSL_VERSION_PTEXT; -#define MIN_LENGTH 4 +#define MIN_LENGTH 4 -static int load_iv(char **fromp,unsigned char *to, int num); +static int load_iv(char **fromp, unsigned char *to, int num); static int check_pem(const char *nm, const char *name); int pem_check_suffix(const char *pem_str, const char *suffix); int PEM_def_callback(char *buf, int num, int w, void *key) - { +{ #ifdef OPENSSL_NO_FP_API - /* We should not ever call the default callback routine from - * windows. */ - PEMerr(PEM_F_PEM_DEF_CALLBACK,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); - return(-1); + /* + * We should not ever call the default callback routine from windows. + */ + PEMerr(PEM_F_PEM_DEF_CALLBACK, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); + return (-1); #else - int i,j; - const char *prompt; - if(key) { - i=strlen(key); - i=(i > num)?num:i; - memcpy(buf,key,i); - return(i); - } - - prompt=EVP_get_pw_prompt(); - if (prompt == NULL) - prompt="Enter PEM pass phrase:"; - - for (;;) - { - i=EVP_read_pw_string_min(buf,MIN_LENGTH,num,prompt,w); - if (i != 0) - { - PEMerr(PEM_F_PEM_DEF_CALLBACK,PEM_R_PROBLEMS_GETTING_PASSWORD); - memset(buf,0,(unsigned int)num); - return(-1); - } - j=strlen(buf); - if (j < MIN_LENGTH) - { - fprintf(stderr,"phrase is too short, needs to be at least %d chars\n",MIN_LENGTH); - } - else - break; - } - return(j); + int i, j; + const char *prompt; + if (key) { + i = strlen(key); + i = (i > num) ? num : i; + memcpy(buf, key, i); + return (i); + } + + prompt = EVP_get_pw_prompt(); + if (prompt == NULL) + prompt = "Enter PEM pass phrase:"; + + for (;;) { + i = EVP_read_pw_string_min(buf, MIN_LENGTH, num, prompt, w); + if (i != 0) { + PEMerr(PEM_F_PEM_DEF_CALLBACK, PEM_R_PROBLEMS_GETTING_PASSWORD); + memset(buf, 0, (unsigned int)num); + return (-1); + } + j = strlen(buf); + if (j < MIN_LENGTH) { + fprintf(stderr, + "phrase is too short, needs to be at least %d chars\n", + MIN_LENGTH); + } else + break; + } + return (j); #endif - } +} void PEM_proc_type(char *buf, int type) - { - const char *str; - - if (type == PEM_TYPE_ENCRYPTED) - str="ENCRYPTED"; - else if (type == PEM_TYPE_MIC_CLEAR) - str="MIC-CLEAR"; - else if (type == PEM_TYPE_MIC_ONLY) - str="MIC-ONLY"; - else - str="BAD-TYPE"; - - BUF_strlcat(buf,"Proc-Type: 4,",PEM_BUFSIZE); - BUF_strlcat(buf,str,PEM_BUFSIZE); - BUF_strlcat(buf,"\n",PEM_BUFSIZE); - } +{ + const char *str; + + if (type == PEM_TYPE_ENCRYPTED) + str = "ENCRYPTED"; + else if (type == PEM_TYPE_MIC_CLEAR) + str = "MIC-CLEAR"; + else if (type == PEM_TYPE_MIC_ONLY) + str = "MIC-ONLY"; + else + str = "BAD-TYPE"; + + BUF_strlcat(buf, "Proc-Type: 4,", PEM_BUFSIZE); + BUF_strlcat(buf, str, PEM_BUFSIZE); + BUF_strlcat(buf, "\n", PEM_BUFSIZE); +} void PEM_dek_info(char *buf, const char *type, int len, char *str) - { - static const unsigned char map[17]="0123456789ABCDEF"; - long i; - int j; - - BUF_strlcat(buf,"DEK-Info: ",PEM_BUFSIZE); - BUF_strlcat(buf,type,PEM_BUFSIZE); - BUF_strlcat(buf,",",PEM_BUFSIZE); - j=strlen(buf); - if (j + (len * 2) + 1 > PEM_BUFSIZE) - return; - for (i=0; i<len; i++) - { - buf[j+i*2] =map[(str[i]>>4)&0x0f]; - buf[j+i*2+1]=map[(str[i] )&0x0f]; - } - buf[j+i*2]='\n'; - buf[j+i*2+1]='\0'; - } +{ + static const unsigned char map[17] = "0123456789ABCDEF"; + long i; + int j; + + BUF_strlcat(buf, "DEK-Info: ", PEM_BUFSIZE); + BUF_strlcat(buf, type, PEM_BUFSIZE); + BUF_strlcat(buf, ",", PEM_BUFSIZE); + j = strlen(buf); + if (j + (len * 2) + 1 > PEM_BUFSIZE) + return; + for (i = 0; i < len; i++) { + buf[j + i * 2] = map[(str[i] >> 4) & 0x0f]; + buf[j + i * 2 + 1] = map[(str[i]) & 0x0f]; + } + buf[j + i * 2] = '\n'; + buf[j + i * 2 + 1] = '\0'; +} #ifndef OPENSSL_NO_FP_API void *PEM_ASN1_read(d2i_of_void *d2i, const char *name, FILE *fp, void **x, - pem_password_cb *cb, void *u) - { - BIO *b; - void *ret; - - if ((b=BIO_new(BIO_s_file())) == NULL) - { - PEMerr(PEM_F_PEM_ASN1_READ,ERR_R_BUF_LIB); - return(0); - } - BIO_set_fp(b,fp,BIO_NOCLOSE); - ret=PEM_ASN1_read_bio(d2i,name,b,x,cb,u); - BIO_free(b); - return(ret); - } + pem_password_cb *cb, void *u) +{ + BIO *b; + void *ret; + + if ((b = BIO_new(BIO_s_file())) == NULL) { + PEMerr(PEM_F_PEM_ASN1_READ, ERR_R_BUF_LIB); + return (0); + } + BIO_set_fp(b, fp, BIO_NOCLOSE); + ret = PEM_ASN1_read_bio(d2i, name, b, x, cb, u); + BIO_free(b); + return (ret); +} #endif static int check_pem(const char *nm, const char *name) { - /* Normal matching nm and name */ - if (!strcmp(nm,name)) return 1; - - /* Make PEM_STRING_EVP_PKEY match any private key */ - - if(!strcmp(name,PEM_STRING_EVP_PKEY)) - { - int slen; - const EVP_PKEY_ASN1_METHOD *ameth; - if(!strcmp(nm,PEM_STRING_PKCS8)) - return 1; - if(!strcmp(nm,PEM_STRING_PKCS8INF)) - return 1; - slen = pem_check_suffix(nm, "PRIVATE KEY"); - if (slen > 0) - { - /* NB: ENGINE implementations wont contain - * a deprecated old private key decode function - * so don't look for them. - */ - ameth = EVP_PKEY_asn1_find_str(NULL, nm, slen); - if (ameth && ameth->old_priv_decode) - return 1; - } - return 0; - } - - if(!strcmp(name,PEM_STRING_PARAMETERS)) - { - int slen; - const EVP_PKEY_ASN1_METHOD *ameth; - slen = pem_check_suffix(nm, "PARAMETERS"); - if (slen > 0) - { - ENGINE *e; - ameth = EVP_PKEY_asn1_find_str(&e, nm, slen); - if (ameth) - { - int r; - if (ameth->param_decode) - r = 1; - else - r = 0; + /* Normal matching nm and name */ + if (!strcmp(nm, name)) + return 1; + + /* Make PEM_STRING_EVP_PKEY match any private key */ + + if (!strcmp(name, PEM_STRING_EVP_PKEY)) { + int slen; + const EVP_PKEY_ASN1_METHOD *ameth; + if (!strcmp(nm, PEM_STRING_PKCS8)) + return 1; + if (!strcmp(nm, PEM_STRING_PKCS8INF)) + return 1; + slen = pem_check_suffix(nm, "PRIVATE KEY"); + if (slen > 0) { + /* + * NB: ENGINE implementations wont contain a deprecated old + * private key decode function so don't look for them. + */ + ameth = EVP_PKEY_asn1_find_str(NULL, nm, slen); + if (ameth && ameth->old_priv_decode) + return 1; + } + return 0; + } + + if (!strcmp(name, PEM_STRING_PARAMETERS)) { + int slen; + const EVP_PKEY_ASN1_METHOD *ameth; + slen = pem_check_suffix(nm, "PARAMETERS"); + if (slen > 0) { + ENGINE *e; + ameth = EVP_PKEY_asn1_find_str(&e, nm, slen); + if (ameth) { + int r; + if (ameth->param_decode) + r = 1; + else + r = 0; #ifndef OPENSSL_NO_ENGINE - if (e) - ENGINE_finish(e); + if (e) + ENGINE_finish(e); #endif - return r; - } - } - return 0; - } + return r; + } + } + return 0; + } + /* If reading DH parameters handle X9.42 DH format too */ + if (!strcmp(nm, PEM_STRING_DHXPARAMS) && + !strcmp(name, PEM_STRING_DHPARAMS)) + return 1; - /* Permit older strings */ + /* Permit older strings */ - if(!strcmp(nm,PEM_STRING_X509_OLD) && - !strcmp(name,PEM_STRING_X509)) return 1; + if (!strcmp(nm, PEM_STRING_X509_OLD) && !strcmp(name, PEM_STRING_X509)) + return 1; - if(!strcmp(nm,PEM_STRING_X509_REQ_OLD) && - !strcmp(name,PEM_STRING_X509_REQ)) return 1; + if (!strcmp(nm, PEM_STRING_X509_REQ_OLD) && + !strcmp(name, PEM_STRING_X509_REQ)) + return 1; - /* Allow normal certs to be read as trusted certs */ - if(!strcmp(nm,PEM_STRING_X509) && - !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1; + /* Allow normal certs to be read as trusted certs */ + if (!strcmp(nm, PEM_STRING_X509) && + !strcmp(name, PEM_STRING_X509_TRUSTED)) + return 1; - if(!strcmp(nm,PEM_STRING_X509_OLD) && - !strcmp(name,PEM_STRING_X509_TRUSTED)) return 1; + if (!strcmp(nm, PEM_STRING_X509_OLD) && + !strcmp(name, PEM_STRING_X509_TRUSTED)) + return 1; - /* Some CAs use PKCS#7 with CERTIFICATE headers */ - if(!strcmp(nm, PEM_STRING_X509) && - !strcmp(name, PEM_STRING_PKCS7)) return 1; + /* Some CAs use PKCS#7 with CERTIFICATE headers */ + if (!strcmp(nm, PEM_STRING_X509) && !strcmp(name, PEM_STRING_PKCS7)) + return 1; - if(!strcmp(nm, PEM_STRING_PKCS7_SIGNED) && - !strcmp(name, PEM_STRING_PKCS7)) return 1; + if (!strcmp(nm, PEM_STRING_PKCS7_SIGNED) && + !strcmp(name, PEM_STRING_PKCS7)) + return 1; #ifndef OPENSSL_NO_CMS - if(!strcmp(nm, PEM_STRING_X509) && - !strcmp(name, PEM_STRING_CMS)) return 1; - /* Allow CMS to be read from PKCS#7 headers */ - if(!strcmp(nm, PEM_STRING_PKCS7) && - !strcmp(name, PEM_STRING_CMS)) return 1; + if (!strcmp(nm, PEM_STRING_X509) && !strcmp(name, PEM_STRING_CMS)) + return 1; + /* Allow CMS to be read from PKCS#7 headers */ + if (!strcmp(nm, PEM_STRING_PKCS7) && !strcmp(name, PEM_STRING_CMS)) + return 1; #endif - return 0; + return 0; } -int PEM_bytes_read_bio(unsigned char **pdata, long *plen, char **pnm, const char *name, BIO *bp, - pem_password_cb *cb, void *u) - { - EVP_CIPHER_INFO cipher; - char *nm=NULL,*header=NULL; - unsigned char *data=NULL; - long len; - int ret = 0; - - for (;;) - { - if (!PEM_read_bio(bp,&nm,&header,&data,&len)) { - if(ERR_GET_REASON(ERR_peek_error()) == - PEM_R_NO_START_LINE) - ERR_add_error_data(2, "Expecting: ", name); - return 0; - } - if(check_pem(nm, name)) break; - OPENSSL_free(nm); - OPENSSL_free(header); - OPENSSL_free(data); - } - if (!PEM_get_EVP_CIPHER_INFO(header,&cipher)) goto err; - if (!PEM_do_header(&cipher,data,&len,cb,u)) goto err; - - *pdata = data; - *plen = len; - - if (pnm) - *pnm = nm; - - ret = 1; - -err: - if (!ret || !pnm) OPENSSL_free(nm); - OPENSSL_free(header); - if (!ret) OPENSSL_free(data); - return ret; - } +int PEM_bytes_read_bio(unsigned char **pdata, long *plen, char **pnm, + const char *name, BIO *bp, pem_password_cb *cb, + void *u) +{ + EVP_CIPHER_INFO cipher; + char *nm = NULL, *header = NULL; + unsigned char *data = NULL; + long len; + int ret = 0; + + for (;;) { + if (!PEM_read_bio(bp, &nm, &header, &data, &len)) { + if (ERR_GET_REASON(ERR_peek_error()) == PEM_R_NO_START_LINE) + ERR_add_error_data(2, "Expecting: ", name); + return 0; + } + if (check_pem(nm, name)) + break; + OPENSSL_free(nm); + OPENSSL_free(header); + OPENSSL_free(data); + } + if (!PEM_get_EVP_CIPHER_INFO(header, &cipher)) + goto err; + if (!PEM_do_header(&cipher, data, &len, cb, u)) + goto err; + + *pdata = data; + *plen = len; + + if (pnm) + *pnm = nm; + + ret = 1; + + err: + if (!ret || !pnm) + OPENSSL_free(nm); + OPENSSL_free(header); + if (!ret) + OPENSSL_free(data); + return ret; +} #ifndef OPENSSL_NO_FP_API int PEM_ASN1_write(i2d_of_void *i2d, const char *name, FILE *fp, - void *x, const EVP_CIPHER *enc, unsigned char *kstr, - int klen, pem_password_cb *callback, void *u) - { - BIO *b; - int ret; - - if ((b=BIO_new(BIO_s_file())) == NULL) - { - PEMerr(PEM_F_PEM_ASN1_WRITE,ERR_R_BUF_LIB); - return(0); - } - BIO_set_fp(b,fp,BIO_NOCLOSE); - ret=PEM_ASN1_write_bio(i2d,name,b,x,enc,kstr,klen,callback,u); - BIO_free(b); - return(ret); - } + void *x, const EVP_CIPHER *enc, unsigned char *kstr, + int klen, pem_password_cb *callback, void *u) +{ + BIO *b; + int ret; + + if ((b = BIO_new(BIO_s_file())) == NULL) { + PEMerr(PEM_F_PEM_ASN1_WRITE, ERR_R_BUF_LIB); + return (0); + } + BIO_set_fp(b, fp, BIO_NOCLOSE); + ret = PEM_ASN1_write_bio(i2d, name, b, x, enc, kstr, klen, callback, u); + BIO_free(b); + return (ret); +} #endif int PEM_ASN1_write_bio(i2d_of_void *i2d, const char *name, BIO *bp, - void *x, const EVP_CIPHER *enc, unsigned char *kstr, - int klen, pem_password_cb *callback, void *u) - { - EVP_CIPHER_CTX ctx; - int dsize=0,i,j,ret=0; - unsigned char *p,*data=NULL; - const char *objstr=NULL; - char buf[PEM_BUFSIZE]; - unsigned char key[EVP_MAX_KEY_LENGTH]; - unsigned char iv[EVP_MAX_IV_LENGTH]; - - if (enc != NULL) - { - objstr=OBJ_nid2sn(EVP_CIPHER_nid(enc)); - if (objstr == NULL) - { - PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_UNSUPPORTED_CIPHER); - goto err; - } - } - - if ((dsize=i2d(x,NULL)) < 0) - { - PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_ASN1_LIB); - dsize=0; - goto err; - } - /* dzise + 8 bytes are needed */ - /* actually it needs the cipher block size extra... */ - data=(unsigned char *)OPENSSL_malloc((unsigned int)dsize+20); - if (data == NULL) - { - PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,ERR_R_MALLOC_FAILURE); - goto err; - } - p=data; - i=i2d(x,&p); - - if (enc != NULL) - { - if (kstr == NULL) - { - if (callback == NULL) - klen=PEM_def_callback(buf,PEM_BUFSIZE,1,u); - else - klen=(*callback)(buf,PEM_BUFSIZE,1,u); - if (klen <= 0) - { - PEMerr(PEM_F_PEM_ASN1_WRITE_BIO,PEM_R_READ_KEY); - goto err; - } + void *x, const EVP_CIPHER *enc, unsigned char *kstr, + int klen, pem_password_cb *callback, void *u) +{ + EVP_CIPHER_CTX ctx; + int dsize = 0, i, j, ret = 0; + unsigned char *p, *data = NULL; + const char *objstr = NULL; + char buf[PEM_BUFSIZE]; + unsigned char key[EVP_MAX_KEY_LENGTH]; + unsigned char iv[EVP_MAX_IV_LENGTH]; + + if (enc != NULL) { + objstr = OBJ_nid2sn(EVP_CIPHER_nid(enc)); + if (objstr == NULL) { + PEMerr(PEM_F_PEM_ASN1_WRITE_BIO, PEM_R_UNSUPPORTED_CIPHER); + goto err; + } + } + + if ((dsize = i2d(x, NULL)) < 0) { + PEMerr(PEM_F_PEM_ASN1_WRITE_BIO, ERR_R_ASN1_LIB); + dsize = 0; + goto err; + } + /* dzise + 8 bytes are needed */ + /* actually it needs the cipher block size extra... */ + data = (unsigned char *)OPENSSL_malloc((unsigned int)dsize + 20); + if (data == NULL) { + PEMerr(PEM_F_PEM_ASN1_WRITE_BIO, ERR_R_MALLOC_FAILURE); + goto err; + } + p = data; + i = i2d(x, &p); + + if (enc != NULL) { + if (kstr == NULL) { + if (callback == NULL) + klen = PEM_def_callback(buf, PEM_BUFSIZE, 1, u); + else + klen = (*callback) (buf, PEM_BUFSIZE, 1, u); + if (klen <= 0) { + PEMerr(PEM_F_PEM_ASN1_WRITE_BIO, PEM_R_READ_KEY); + goto err; + } #ifdef CHARSET_EBCDIC - /* Convert the pass phrase from EBCDIC */ - ebcdic2ascii(buf, buf, klen); + /* Convert the pass phrase from EBCDIC */ + ebcdic2ascii(buf, buf, klen); #endif - kstr=(unsigned char *)buf; - } - RAND_add(data,i,0);/* put in the RSA key. */ - OPENSSL_assert(enc->iv_len <= (int)sizeof(iv)); - if (RAND_pseudo_bytes(iv,enc->iv_len) < 0) /* Generate a salt */ - goto err; - /* The 'iv' is used as the iv and as a salt. It is - * NOT taken from the BytesToKey function */ - if (!EVP_BytesToKey(enc,EVP_md5(),iv,kstr,klen,1,key,NULL)) - goto err; - - if (kstr == (unsigned char *)buf) OPENSSL_cleanse(buf,PEM_BUFSIZE); - - OPENSSL_assert(strlen(objstr)+23+2*enc->iv_len+13 <= sizeof buf); - - buf[0]='\0'; - PEM_proc_type(buf,PEM_TYPE_ENCRYPTED); - PEM_dek_info(buf,objstr,enc->iv_len,(char *)iv); - /* k=strlen(buf); */ - - EVP_CIPHER_CTX_init(&ctx); - ret = 1; - if (!EVP_EncryptInit_ex(&ctx,enc,NULL,key,iv) - || !EVP_EncryptUpdate(&ctx,data,&j,data,i) - || !EVP_EncryptFinal_ex(&ctx,&(data[j]),&i)) - ret = 0; - EVP_CIPHER_CTX_cleanup(&ctx); - if (ret == 0) - goto err; - i+=j; - } - else - { - ret=1; - buf[0]='\0'; - } - i=PEM_write_bio(bp,name,buf,data,i); - if (i <= 0) ret=0; -err: - OPENSSL_cleanse(key,sizeof(key)); - OPENSSL_cleanse(iv,sizeof(iv)); - OPENSSL_cleanse((char *)&ctx,sizeof(ctx)); - OPENSSL_cleanse(buf,PEM_BUFSIZE); - if (data != NULL) - { - OPENSSL_cleanse(data,(unsigned int)dsize); - OPENSSL_free(data); - } - return(ret); - } + kstr = (unsigned char *)buf; + } + RAND_add(data, i, 0); /* put in the RSA key. */ + OPENSSL_assert(enc->iv_len <= (int)sizeof(iv)); + if (RAND_pseudo_bytes(iv, enc->iv_len) < 0) /* Generate a salt */ + goto err; + /* + * The 'iv' is used as the iv and as a salt. It is NOT taken from + * the BytesToKey function + */ + if (!EVP_BytesToKey(enc, EVP_md5(), iv, kstr, klen, 1, key, NULL)) + goto err; + + if (kstr == (unsigned char *)buf) + OPENSSL_cleanse(buf, PEM_BUFSIZE); + + OPENSSL_assert(strlen(objstr) + 23 + 2 * enc->iv_len + 13 <= + sizeof buf); + + buf[0] = '\0'; + PEM_proc_type(buf, PEM_TYPE_ENCRYPTED); + PEM_dek_info(buf, objstr, enc->iv_len, (char *)iv); + /* k=strlen(buf); */ + + EVP_CIPHER_CTX_init(&ctx); + ret = 1; + if (!EVP_EncryptInit_ex(&ctx, enc, NULL, key, iv) + || !EVP_EncryptUpdate(&ctx, data, &j, data, i) + || !EVP_EncryptFinal_ex(&ctx, &(data[j]), &i)) + ret = 0; + EVP_CIPHER_CTX_cleanup(&ctx); + if (ret == 0) + goto err; + i += j; + } else { + ret = 1; + buf[0] = '\0'; + } + i = PEM_write_bio(bp, name, buf, data, i); + if (i <= 0) + ret = 0; + err: + OPENSSL_cleanse(key, sizeof(key)); + OPENSSL_cleanse(iv, sizeof(iv)); + OPENSSL_cleanse((char *)&ctx, sizeof(ctx)); + OPENSSL_cleanse(buf, PEM_BUFSIZE); + if (data != NULL) { + OPENSSL_cleanse(data, (unsigned int)dsize); + OPENSSL_free(data); + } + return (ret); +} int PEM_do_header(EVP_CIPHER_INFO *cipher, unsigned char *data, long *plen, - pem_password_cb *callback,void *u) - { - int i,j,o,klen; - long len; - EVP_CIPHER_CTX ctx; - unsigned char key[EVP_MAX_KEY_LENGTH]; - char buf[PEM_BUFSIZE]; - - len= *plen; - - if (cipher->cipher == NULL) return(1); - if (callback == NULL) - klen=PEM_def_callback(buf,PEM_BUFSIZE,0,u); - else - klen=callback(buf,PEM_BUFSIZE,0,u); - if (klen <= 0) - { - PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_PASSWORD_READ); - return(0); - } + pem_password_cb *callback, void *u) +{ + int i = 0, j, o, klen; + long len; + EVP_CIPHER_CTX ctx; + unsigned char key[EVP_MAX_KEY_LENGTH]; + char buf[PEM_BUFSIZE]; + + len = *plen; + + if (cipher->cipher == NULL) + return (1); + if (callback == NULL) + klen = PEM_def_callback(buf, PEM_BUFSIZE, 0, u); + else + klen = callback(buf, PEM_BUFSIZE, 0, u); + if (klen <= 0) { + PEMerr(PEM_F_PEM_DO_HEADER, PEM_R_BAD_PASSWORD_READ); + return (0); + } #ifdef CHARSET_EBCDIC - /* Convert the pass phrase from EBCDIC */ - ebcdic2ascii(buf, buf, klen); + /* Convert the pass phrase from EBCDIC */ + ebcdic2ascii(buf, buf, klen); #endif - if (!EVP_BytesToKey(cipher->cipher,EVP_md5(),&(cipher->iv[0]), - (unsigned char *)buf,klen,1,key,NULL)) - return 0; - - j=(int)len; - EVP_CIPHER_CTX_init(&ctx); - o = EVP_DecryptInit_ex(&ctx,cipher->cipher,NULL, key,&(cipher->iv[0])); - if (o) - o = EVP_DecryptUpdate(&ctx,data,&i,data,j); - if (o) - o = EVP_DecryptFinal_ex(&ctx,&(data[i]),&j); - EVP_CIPHER_CTX_cleanup(&ctx); - OPENSSL_cleanse((char *)buf,sizeof(buf)); - OPENSSL_cleanse((char *)key,sizeof(key)); - j+=i; - if (!o) - { - PEMerr(PEM_F_PEM_DO_HEADER,PEM_R_BAD_DECRYPT); - return(0); - } - *plen=j; - return(1); - } + if (!EVP_BytesToKey(cipher->cipher, EVP_md5(), &(cipher->iv[0]), + (unsigned char *)buf, klen, 1, key, NULL)) + return 0; + + j = (int)len; + EVP_CIPHER_CTX_init(&ctx); + o = EVP_DecryptInit_ex(&ctx, cipher->cipher, NULL, key, &(cipher->iv[0])); + if (o) + o = EVP_DecryptUpdate(&ctx, data, &i, data, j); + if (o) + o = EVP_DecryptFinal_ex(&ctx, &(data[i]), &j); + EVP_CIPHER_CTX_cleanup(&ctx); + OPENSSL_cleanse((char *)buf, sizeof(buf)); + OPENSSL_cleanse((char *)key, sizeof(key)); + if (o) + j += i; + else { + PEMerr(PEM_F_PEM_DO_HEADER, PEM_R_BAD_DECRYPT); + return (0); + } + *plen = j; + return (1); +} int PEM_get_EVP_CIPHER_INFO(char *header, EVP_CIPHER_INFO *cipher) - { - const EVP_CIPHER *enc=NULL; - char *p,c; - char **header_pp = &header; - - cipher->cipher=NULL; - if ((header == NULL) || (*header == '\0') || (*header == '\n')) - return(1); - if (strncmp(header,"Proc-Type: ",11) != 0) - { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_PROC_TYPE); return(0); } - header+=11; - if (*header != '4') return(0); header++; - if (*header != ',') return(0); header++; - if (strncmp(header,"ENCRYPTED",9) != 0) - { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_ENCRYPTED); return(0); } - for (; (*header != '\n') && (*header != '\0'); header++) - ; - if (*header == '\0') - { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_SHORT_HEADER); return(0); } - header++; - if (strncmp(header,"DEK-Info: ",10) != 0) - { PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_NOT_DEK_INFO); return(0); } - header+=10; - - p=header; - for (;;) - { - c= *header; +{ + const EVP_CIPHER *enc = NULL; + char *p, c; + char **header_pp = &header; + + cipher->cipher = NULL; + if ((header == NULL) || (*header == '\0') || (*header == '\n')) + return (1); + if (strncmp(header, "Proc-Type: ", 11) != 0) { + PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO, PEM_R_NOT_PROC_TYPE); + return (0); + } + header += 11; + if (*header != '4') + return (0); + header++; + if (*header != ',') + return (0); + header++; + if (strncmp(header, "ENCRYPTED", 9) != 0) { + PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO, PEM_R_NOT_ENCRYPTED); + return (0); + } + for (; (*header != '\n') && (*header != '\0'); header++) ; + if (*header == '\0') { + PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO, PEM_R_SHORT_HEADER); + return (0); + } + header++; + if (strncmp(header, "DEK-Info: ", 10) != 0) { + PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO, PEM_R_NOT_DEK_INFO); + return (0); + } + header += 10; + + p = header; + for (;;) { + c = *header; #ifndef CHARSET_EBCDIC - if (!( ((c >= 'A') && (c <= 'Z')) || (c == '-') || - ((c >= '0') && (c <= '9')))) - break; + if (!(((c >= 'A') && (c <= 'Z')) || (c == '-') || + ((c >= '0') && (c <= '9')))) + break; #else - if (!( isupper(c) || (c == '-') || - isdigit(c))) - break; + if (!(isupper(c) || (c == '-') || isdigit(c))) + break; #endif - header++; - } - *header='\0'; - cipher->cipher=enc=EVP_get_cipherbyname(p); - *header=c; - header++; - - if (enc == NULL) - { - PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO,PEM_R_UNSUPPORTED_ENCRYPTION); - return(0); - } - if (!load_iv(header_pp,&(cipher->iv[0]),enc->iv_len)) - return(0); - - return(1); - } + header++; + } + *header = '\0'; + cipher->cipher = enc = EVP_get_cipherbyname(p); + *header = c; + header++; + + if (enc == NULL) { + PEMerr(PEM_F_PEM_GET_EVP_CIPHER_INFO, PEM_R_UNSUPPORTED_ENCRYPTION); + return (0); + } + if (!load_iv(header_pp, &(cipher->iv[0]), enc->iv_len)) + return (0); + + return (1); +} static int load_iv(char **fromp, unsigned char *to, int num) - { - int v,i; - char *from; - - from= *fromp; - for (i=0; i<num; i++) to[i]=0; - num*=2; - for (i=0; i<num; i++) - { - if ((*from >= '0') && (*from <= '9')) - v= *from-'0'; - else if ((*from >= 'A') && (*from <= 'F')) - v= *from-'A'+10; - else if ((*from >= 'a') && (*from <= 'f')) - v= *from-'a'+10; - else - { - PEMerr(PEM_F_LOAD_IV,PEM_R_BAD_IV_CHARS); - return(0); - } - from++; - to[i/2]|=v<<(long)((!(i&1))*4); - } - - *fromp=from; - return(1); - } +{ + int v, i; + char *from; + + from = *fromp; + for (i = 0; i < num; i++) + to[i] = 0; + num *= 2; + for (i = 0; i < num; i++) { + if ((*from >= '0') && (*from <= '9')) + v = *from - '0'; + else if ((*from >= 'A') && (*from <= 'F')) + v = *from - 'A' + 10; + else if ((*from >= 'a') && (*from <= 'f')) + v = *from - 'a' + 10; + else { + PEMerr(PEM_F_LOAD_IV, PEM_R_BAD_IV_CHARS); + return (0); + } + from++; + to[i / 2] |= v << (long)((!(i & 1)) * 4); + } + + *fromp = from; + return (1); +} #ifndef OPENSSL_NO_FP_API -int PEM_write(FILE *fp, char *name, char *header, unsigned char *data, - long len) - { - BIO *b; - int ret; - - if ((b=BIO_new(BIO_s_file())) == NULL) - { - PEMerr(PEM_F_PEM_WRITE,ERR_R_BUF_LIB); - return(0); - } - BIO_set_fp(b,fp,BIO_NOCLOSE); - ret=PEM_write_bio(b, name, header, data,len); - BIO_free(b); - return(ret); - } +int PEM_write(FILE *fp, const char *name, const char *header, + const unsigned char *data, long len) +{ + BIO *b; + int ret; + + if ((b = BIO_new(BIO_s_file())) == NULL) { + PEMerr(PEM_F_PEM_WRITE, ERR_R_BUF_LIB); + return (0); + } + BIO_set_fp(b, fp, BIO_NOCLOSE); + ret = PEM_write_bio(b, name, header, data, len); + BIO_free(b); + return (ret); +} #endif -int PEM_write_bio(BIO *bp, const char *name, char *header, unsigned char *data, - long len) - { - int nlen,n,i,j,outl; - unsigned char *buf = NULL; - EVP_ENCODE_CTX ctx; - int reason=ERR_R_BUF_LIB; - - EVP_EncodeInit(&ctx); - nlen=strlen(name); - - if ( (BIO_write(bp,"-----BEGIN ",11) != 11) || - (BIO_write(bp,name,nlen) != nlen) || - (BIO_write(bp,"-----\n",6) != 6)) - goto err; - - i=strlen(header); - if (i > 0) - { - if ( (BIO_write(bp,header,i) != i) || - (BIO_write(bp,"\n",1) != 1)) - goto err; - } - - buf = OPENSSL_malloc(PEM_BUFSIZE*8); - if (buf == NULL) - { - reason=ERR_R_MALLOC_FAILURE; - goto err; - } - - i=j=0; - while (len > 0) - { - n=(int)((len>(PEM_BUFSIZE*5))?(PEM_BUFSIZE*5):len); - EVP_EncodeUpdate(&ctx,buf,&outl,&(data[j]),n); - if ((outl) && (BIO_write(bp,(char *)buf,outl) != outl)) - goto err; - i+=outl; - len-=n; - j+=n; - } - EVP_EncodeFinal(&ctx,buf,&outl); - if ((outl > 0) && (BIO_write(bp,(char *)buf,outl) != outl)) goto err; - OPENSSL_cleanse(buf, PEM_BUFSIZE*8); - OPENSSL_free(buf); - buf = NULL; - if ( (BIO_write(bp,"-----END ",9) != 9) || - (BIO_write(bp,name,nlen) != nlen) || - (BIO_write(bp,"-----\n",6) != 6)) - goto err; - return(i+outl); -err: - if (buf) { - OPENSSL_cleanse(buf, PEM_BUFSIZE*8); - OPENSSL_free(buf); - } - PEMerr(PEM_F_PEM_WRITE_BIO,reason); - return(0); - } +int PEM_write_bio(BIO *bp, const char *name, const char *header, + const unsigned char *data, long len) +{ + int nlen, n, i, j, outl; + unsigned char *buf = NULL; + EVP_ENCODE_CTX ctx; + int reason = ERR_R_BUF_LIB; + + EVP_EncodeInit(&ctx); + nlen = strlen(name); + + if ((BIO_write(bp, "-----BEGIN ", 11) != 11) || + (BIO_write(bp, name, nlen) != nlen) || + (BIO_write(bp, "-----\n", 6) != 6)) + goto err; + + i = strlen(header); + if (i > 0) { + if ((BIO_write(bp, header, i) != i) || (BIO_write(bp, "\n", 1) != 1)) + goto err; + } + + buf = OPENSSL_malloc(PEM_BUFSIZE * 8); + if (buf == NULL) { + reason = ERR_R_MALLOC_FAILURE; + goto err; + } + + i = j = 0; + while (len > 0) { + n = (int)((len > (PEM_BUFSIZE * 5)) ? (PEM_BUFSIZE * 5) : len); + EVP_EncodeUpdate(&ctx, buf, &outl, &(data[j]), n); + if ((outl) && (BIO_write(bp, (char *)buf, outl) != outl)) + goto err; + i += outl; + len -= n; + j += n; + } + EVP_EncodeFinal(&ctx, buf, &outl); + if ((outl > 0) && (BIO_write(bp, (char *)buf, outl) != outl)) + goto err; + OPENSSL_cleanse(buf, PEM_BUFSIZE * 8); + OPENSSL_free(buf); + buf = NULL; + if ((BIO_write(bp, "-----END ", 9) != 9) || + (BIO_write(bp, name, nlen) != nlen) || + (BIO_write(bp, "-----\n", 6) != 6)) + goto err; + return (i + outl); + err: + if (buf) { + OPENSSL_cleanse(buf, PEM_BUFSIZE * 8); + OPENSSL_free(buf); + } + PEMerr(PEM_F_PEM_WRITE_BIO, reason); + return (0); +} #ifndef OPENSSL_NO_FP_API int PEM_read(FILE *fp, char **name, char **header, unsigned char **data, - long *len) - { - BIO *b; - int ret; - - if ((b=BIO_new(BIO_s_file())) == NULL) - { - PEMerr(PEM_F_PEM_READ,ERR_R_BUF_LIB); - return(0); - } - BIO_set_fp(b,fp,BIO_NOCLOSE); - ret=PEM_read_bio(b, name, header, data,len); - BIO_free(b); - return(ret); - } + long *len) +{ + BIO *b; + int ret; + + if ((b = BIO_new(BIO_s_file())) == NULL) { + PEMerr(PEM_F_PEM_READ, ERR_R_BUF_LIB); + return (0); + } + BIO_set_fp(b, fp, BIO_NOCLOSE); + ret = PEM_read_bio(b, name, header, data, len); + BIO_free(b); + return (ret); +} #endif int PEM_read_bio(BIO *bp, char **name, char **header, unsigned char **data, - long *len) - { - EVP_ENCODE_CTX ctx; - int end=0,i,k,bl=0,hl=0,nohead=0; - char buf[256]; - BUF_MEM *nameB; - BUF_MEM *headerB; - BUF_MEM *dataB,*tmpB; - - nameB=BUF_MEM_new(); - headerB=BUF_MEM_new(); - dataB=BUF_MEM_new(); - if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL)) - { - BUF_MEM_free(nameB); - BUF_MEM_free(headerB); - BUF_MEM_free(dataB); - PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); - return(0); - } - - buf[254]='\0'; - for (;;) - { - i=BIO_gets(bp,buf,254); - - if (i <= 0) - { - PEMerr(PEM_F_PEM_READ_BIO,PEM_R_NO_START_LINE); - goto err; - } - - while ((i >= 0) && (buf[i] <= ' ')) i--; - buf[++i]='\n'; buf[++i]='\0'; - - if (strncmp(buf,"-----BEGIN ",11) == 0) - { - i=strlen(&(buf[11])); - - if (strncmp(&(buf[11+i-6]),"-----\n",6) != 0) - continue; - if (!BUF_MEM_grow(nameB,i+9)) - { - PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); - goto err; - } - memcpy(nameB->data,&(buf[11]),i-6); - nameB->data[i-6]='\0'; - break; - } - } - hl=0; - if (!BUF_MEM_grow(headerB,256)) - { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; } - headerB->data[0]='\0'; - for (;;) - { - i=BIO_gets(bp,buf,254); - if (i <= 0) break; - - while ((i >= 0) && (buf[i] <= ' ')) i--; - buf[++i]='\n'; buf[++i]='\0'; - - if (buf[0] == '\n') break; - if (!BUF_MEM_grow(headerB,hl+i+9)) - { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; } - if (strncmp(buf,"-----END ",9) == 0) - { - nohead=1; - break; - } - memcpy(&(headerB->data[hl]),buf,i); - headerB->data[hl+i]='\0'; - hl+=i; - } - - bl=0; - if (!BUF_MEM_grow(dataB,1024)) - { PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); goto err; } - dataB->data[0]='\0'; - if (!nohead) - { - for (;;) - { - i=BIO_gets(bp,buf,254); - if (i <= 0) break; - - while ((i >= 0) && (buf[i] <= ' ')) i--; - buf[++i]='\n'; buf[++i]='\0'; - - if (i != 65) end=1; - if (strncmp(buf,"-----END ",9) == 0) - break; - if (i > 65) break; - if (!BUF_MEM_grow_clean(dataB,i+bl+9)) - { - PEMerr(PEM_F_PEM_READ_BIO,ERR_R_MALLOC_FAILURE); - goto err; - } - memcpy(&(dataB->data[bl]),buf,i); - dataB->data[bl+i]='\0'; - bl+=i; - if (end) - { - buf[0]='\0'; - i=BIO_gets(bp,buf,254); - if (i <= 0) break; - - while ((i >= 0) && (buf[i] <= ' ')) i--; - buf[++i]='\n'; buf[++i]='\0'; - - break; - } - } - } - else - { - tmpB=headerB; - headerB=dataB; - dataB=tmpB; - bl=hl; - } - i=strlen(nameB->data); - if ( (strncmp(buf,"-----END ",9) != 0) || - (strncmp(nameB->data,&(buf[9]),i) != 0) || - (strncmp(&(buf[9+i]),"-----\n",6) != 0)) - { - PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_END_LINE); - goto err; - } - - EVP_DecodeInit(&ctx); - i=EVP_DecodeUpdate(&ctx, - (unsigned char *)dataB->data,&bl, - (unsigned char *)dataB->data,bl); - if (i < 0) - { - PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE); - goto err; - } - i=EVP_DecodeFinal(&ctx,(unsigned char *)&(dataB->data[bl]),&k); - if (i < 0) - { - PEMerr(PEM_F_PEM_READ_BIO,PEM_R_BAD_BASE64_DECODE); - goto err; - } - bl+=k; - - if (bl == 0) goto err; - *name=nameB->data; - *header=headerB->data; - *data=(unsigned char *)dataB->data; - *len=bl; - OPENSSL_free(nameB); - OPENSSL_free(headerB); - OPENSSL_free(dataB); - return(1); -err: - BUF_MEM_free(nameB); - BUF_MEM_free(headerB); - BUF_MEM_free(dataB); - return(0); - } - -/* Check pem string and return prefix length. - * If for example the pem_str == "RSA PRIVATE KEY" and suffix = "PRIVATE KEY" - * the return value is 3 for the string "RSA". + long *len) +{ + EVP_ENCODE_CTX ctx; + int end = 0, i, k, bl = 0, hl = 0, nohead = 0; + char buf[256]; + BUF_MEM *nameB; + BUF_MEM *headerB; + BUF_MEM *dataB, *tmpB; + + nameB = BUF_MEM_new(); + headerB = BUF_MEM_new(); + dataB = BUF_MEM_new(); + if ((nameB == NULL) || (headerB == NULL) || (dataB == NULL)) { + BUF_MEM_free(nameB); + BUF_MEM_free(headerB); + BUF_MEM_free(dataB); + PEMerr(PEM_F_PEM_READ_BIO, ERR_R_MALLOC_FAILURE); + return (0); + } + + buf[254] = '\0'; + for (;;) { + i = BIO_gets(bp, buf, 254); + + if (i <= 0) { + PEMerr(PEM_F_PEM_READ_BIO, PEM_R_NO_START_LINE); + goto err; + } + + while ((i >= 0) && (buf[i] <= ' ')) + i--; + buf[++i] = '\n'; + buf[++i] = '\0'; + + if (strncmp(buf, "-----BEGIN ", 11) == 0) { + i = strlen(&(buf[11])); + + if (strncmp(&(buf[11 + i - 6]), "-----\n", 6) != 0) + continue; + if (!BUF_MEM_grow(nameB, i + 9)) { + PEMerr(PEM_F_PEM_READ_BIO, ERR_R_MALLOC_FAILURE); + goto err; + } + memcpy(nameB->data, &(buf[11]), i - 6); + nameB->data[i - 6] = '\0'; + break; + } + } + hl = 0; + if (!BUF_MEM_grow(headerB, 256)) { + PEMerr(PEM_F_PEM_READ_BIO, ERR_R_MALLOC_FAILURE); + goto err; + } + headerB->data[0] = '\0'; + for (;;) { + i = BIO_gets(bp, buf, 254); + if (i <= 0) + break; + + while ((i >= 0) && (buf[i] <= ' ')) + i--; + buf[++i] = '\n'; + buf[++i] = '\0'; + + if (buf[0] == '\n') + break; + if (!BUF_MEM_grow(headerB, hl + i + 9)) { + PEMerr(PEM_F_PEM_READ_BIO, ERR_R_MALLOC_FAILURE); + goto err; + } + if (strncmp(buf, "-----END ", 9) == 0) { + nohead = 1; + break; + } + memcpy(&(headerB->data[hl]), buf, i); + headerB->data[hl + i] = '\0'; + hl += i; + } + + bl = 0; + if (!BUF_MEM_grow(dataB, 1024)) { + PEMerr(PEM_F_PEM_READ_BIO, ERR_R_MALLOC_FAILURE); + goto err; + } + dataB->data[0] = '\0'; + if (!nohead) { + for (;;) { + i = BIO_gets(bp, buf, 254); + if (i <= 0) + break; + + while ((i >= 0) && (buf[i] <= ' ')) + i--; + buf[++i] = '\n'; + buf[++i] = '\0'; + + if (i != 65) + end = 1; + if (strncmp(buf, "-----END ", 9) == 0) + break; + if (i > 65) + break; + if (!BUF_MEM_grow_clean(dataB, i + bl + 9)) { + PEMerr(PEM_F_PEM_READ_BIO, ERR_R_MALLOC_FAILURE); + goto err; + } + memcpy(&(dataB->data[bl]), buf, i); + dataB->data[bl + i] = '\0'; + bl += i; + if (end) { + buf[0] = '\0'; + i = BIO_gets(bp, buf, 254); + if (i <= 0) + break; + + while ((i >= 0) && (buf[i] <= ' ')) + i--; + buf[++i] = '\n'; + buf[++i] = '\0'; + + break; + } + } + } else { + tmpB = headerB; + headerB = dataB; + dataB = tmpB; + bl = hl; + } + i = strlen(nameB->data); + if ((strncmp(buf, "-----END ", 9) != 0) || + (strncmp(nameB->data, &(buf[9]), i) != 0) || + (strncmp(&(buf[9 + i]), "-----\n", 6) != 0)) { + PEMerr(PEM_F_PEM_READ_BIO, PEM_R_BAD_END_LINE); + goto err; + } + + EVP_DecodeInit(&ctx); + i = EVP_DecodeUpdate(&ctx, + (unsigned char *)dataB->data, &bl, + (unsigned char *)dataB->data, bl); + if (i < 0) { + PEMerr(PEM_F_PEM_READ_BIO, PEM_R_BAD_BASE64_DECODE); + goto err; + } + i = EVP_DecodeFinal(&ctx, (unsigned char *)&(dataB->data[bl]), &k); + if (i < 0) { + PEMerr(PEM_F_PEM_READ_BIO, PEM_R_BAD_BASE64_DECODE); + goto err; + } + bl += k; + + if (bl == 0) + goto err; + *name = nameB->data; + *header = headerB->data; + *data = (unsigned char *)dataB->data; + *len = bl; + OPENSSL_free(nameB); + OPENSSL_free(headerB); + OPENSSL_free(dataB); + return (1); + err: + BUF_MEM_free(nameB); + BUF_MEM_free(headerB); + BUF_MEM_free(dataB); + return (0); +} + +/* + * Check pem string and return prefix length. If for example the pem_str == + * "RSA PRIVATE KEY" and suffix = "PRIVATE KEY" the return value is 3 for the + * string "RSA". */ int pem_check_suffix(const char *pem_str, const char *suffix) - { - int pem_len = strlen(pem_str); - int suffix_len = strlen(suffix); - const char *p; - if (suffix_len + 1 >= pem_len) - return 0; - p = pem_str + pem_len - suffix_len; - if (strcmp(p, suffix)) - return 0; - p--; - if (*p != ' ') - return 0; - return p - pem_str; - } - +{ + int pem_len = strlen(pem_str); + int suffix_len = strlen(suffix); + const char *p; + if (suffix_len + 1 >= pem_len) + return 0; + p = pem_str + pem_len - suffix_len; + if (strcmp(p, suffix)) + return 0; + p--; + if (*p != ' ') + return 0; + return p - pem_str; +} |