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- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * 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:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * 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
- * 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
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * 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
- * [including the GNU Public Licence.] */
-
- #include <openssl/pem.h>
-
- #include <stdio.h>
- #include <string.h>
-
- #include <openssl/buf.h>
- #include <openssl/dh.h>
- #include <openssl/err.h>
- #include <openssl/evp.h>
- #include <openssl/mem.h>
- #include <openssl/obj.h>
- #include <openssl/pkcs8.h>
- #include <openssl/rand.h>
- #include <openssl/x509.h>
-
- #include "../evp/internal.h"
-
-
- int pem_check_suffix(const char *pem_str, const char *suffix);
-
- EVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u)
- {
- char *nm=NULL;
- const unsigned char *p=NULL;
- unsigned char *data=NULL;
- long len;
- int slen;
- EVP_PKEY *ret=NULL;
-
- if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u))
- return NULL;
- p = data;
-
- if (strcmp(nm,PEM_STRING_PKCS8INF) == 0) {
- PKCS8_PRIV_KEY_INFO *p8inf;
- p8inf=d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len);
- if(!p8inf) goto p8err;
- ret = EVP_PKCS82PKEY(p8inf);
- if(x) {
- if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
- *x = ret;
- }
- PKCS8_PRIV_KEY_INFO_free(p8inf);
- } else if (strcmp(nm,PEM_STRING_PKCS8) == 0) {
- PKCS8_PRIV_KEY_INFO *p8inf;
- X509_SIG *p8;
- int klen;
- char psbuf[PEM_BUFSIZE];
- p8 = d2i_X509_SIG(NULL, &p, len);
- if(!p8) goto p8err;
-
- klen = 0;
- if (cb) klen=cb(psbuf,PEM_BUFSIZE,0,u);
- if (klen <= 0) {
- OPENSSL_PUT_ERROR(PEM, PEM_read_bio_PrivateKey, PEM_R_BAD_PASSWORD_READ);
- X509_SIG_free(p8);
- goto err;
- }
- p8inf = PKCS8_decrypt(p8, psbuf, klen);
- X509_SIG_free(p8);
- if(!p8inf) goto p8err;
- ret = EVP_PKCS82PKEY(p8inf);
- if(x) {
- if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
- *x = ret;
- }
- PKCS8_PRIV_KEY_INFO_free(p8inf);
- } else if ((slen = pem_check_suffix(nm, "PRIVATE KEY")) > 0)
- {
- const EVP_PKEY_ASN1_METHOD *ameth;
- ameth = EVP_PKEY_asn1_find_str(NULL, nm, slen);
- if (!ameth || !ameth->old_priv_decode)
- goto p8err;
- ret=d2i_PrivateKey(ameth->pkey_id,x,&p,len);
- }
- p8err:
- if (ret == NULL)
- OPENSSL_PUT_ERROR(PEM, PEM_read_bio_PrivateKey, ERR_R_ASN1_LIB);
-
- err:
- OPENSSL_free(nm);
- OPENSSL_cleanse(data, len);
- OPENSSL_free(data);
- return(ret);
- }
-
- int PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc,
- unsigned char *kstr, int klen,
- pem_password_cb *cb, void *u)
- {
- char pem_str[80];
- if (!x->ameth || x->ameth->priv_encode)
- return PEM_write_bio_PKCS8PrivateKey(bp, x, enc,
- (char *)kstr, klen,
- cb, u);
-
- BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str);
- return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
- pem_str,bp,x,enc,kstr,klen,cb,u);
- }
-
- static int public_key_type_from_str(const char *name, size_t len) {
- if (len == 3 && memcmp(name, "RSA", 3) == 0) {
- return EVP_PKEY_RSA;
- } else if (len == 2 && memcmp(name, "DH", 2) == 0) {
- return EVP_PKEY_DH;
- } else if (len == 2 && memcmp(name, "EC", 2) == 0) {
- return EVP_PKEY_EC;
- }
- return NID_undef;
- }
-
- static int set_pkey_type_from_str(EVP_PKEY *pkey, const char *name, size_t len) {
- int nid = public_key_type_from_str(name, len);
- if (nid == NID_undef) {
- return 0;
- }
- return EVP_PKEY_set_type(pkey, nid);
- }
-
- EVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x)
- {
- char *nm=NULL;
- const unsigned char *p=NULL;
- unsigned char *data=NULL;
- long len;
- int slen;
- EVP_PKEY *ret=NULL;
-
- if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_PARAMETERS,
- bp, 0, NULL))
- return NULL;
- p = data;
-
- if ((slen = pem_check_suffix(nm, "PARAMETERS")) > 0)
- {
- ret = EVP_PKEY_new();
- if (!ret)
- goto err;
- if (!set_pkey_type_from_str(ret, nm, slen)
- || !ret->ameth->param_decode
- || !ret->ameth->param_decode(ret, &p, len))
- {
- EVP_PKEY_free(ret);
- ret = NULL;
- goto err;
- }
- if(x)
- {
- if(*x) EVP_PKEY_free((EVP_PKEY *)*x);
- *x = ret;
- }
- }
- err:
- if (ret == NULL)
- OPENSSL_PUT_ERROR(PEM, PEM_read_bio_Parameters, ERR_R_ASN1_LIB);
- OPENSSL_free(nm);
- OPENSSL_free(data);
- return(ret);
- }
-
- int PEM_write_bio_Parameters(BIO *bp, EVP_PKEY *x)
- {
- char pem_str[80];
- if (!x->ameth || !x->ameth->param_encode)
- return 0;
-
- BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str);
- return PEM_ASN1_write_bio(
- (i2d_of_void *)x->ameth->param_encode,
- pem_str,bp,x,NULL,NULL,0,0,NULL);
- }
-
- #ifndef OPENSSL_NO_FP_API
- EVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u)
- {
- BIO *b;
- EVP_PKEY *ret;
-
- if ((b=BIO_new(BIO_s_file())) == NULL)
- {
- OPENSSL_PUT_ERROR(PEM, PEM_read_PrivateKey, ERR_R_BUF_LIB);
- return(0);
- }
- BIO_set_fp(b,fp,BIO_NOCLOSE);
- ret=PEM_read_bio_PrivateKey(b,x,cb,u);
- BIO_free(b);
- return(ret);
- }
-
- int PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc,
- unsigned char *kstr, int klen,
- pem_password_cb *cb, void *u)
- {
- BIO *b;
- int ret;
-
- if ((b=BIO_new_fp(fp, BIO_NOCLOSE)) == NULL)
- {
- OPENSSL_PUT_ERROR(PEM, PEM_write_PrivateKey, ERR_R_BUF_LIB);
- return 0;
- }
- ret=PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u);
- BIO_free(b);
- return ret;
- }
-
- #endif
-
-
- /* Transparently read in PKCS#3 or X9.42 DH parameters */
-
- DH *PEM_read_bio_DHparams(BIO *bp, DH **x, pem_password_cb *cb, void *u)
- {
- char *nm=NULL;
- const unsigned char *p=NULL;
- unsigned char *data=NULL;
- long len;
- DH *ret=NULL;
-
- if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_DHPARAMS,
- bp, cb, u))
- return NULL;
- p = data;
-
- /* TODO(fork): remove? */
- /*if (!strcmp(nm, PEM_STRING_DHXPARAMS))
- ret = d2i_DHxparams(x, &p, len);
- else */
- ret = d2i_DHparams(x, &p, len);
-
- if (ret == NULL)
- OPENSSL_PUT_ERROR(PEM, PEM_read_bio_DHparams, ERR_R_ASN1_LIB);
- OPENSSL_free(nm);
- OPENSSL_free(data);
- return ret;
- }
-
- #ifndef OPENSSL_NO_FP_API
- DH *PEM_read_DHparams(FILE *fp, DH **x, pem_password_cb *cb, void *u)
- {
- BIO *b;
- DH *ret;
-
- if ((b=BIO_new(BIO_s_file())) == NULL)
- {
- OPENSSL_PUT_ERROR(PEM, PEM_read_DHparams, ERR_R_BUF_LIB);
- return(0);
- }
- BIO_set_fp(b,fp,BIO_NOCLOSE);
- ret=PEM_read_bio_DHparams(b,x,cb,u);
- BIO_free(b);
- return(ret);
- }
- #endif
-
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