| /* 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) |
| cb = PEM_def_callback; |
| klen = cb(psbuf, PEM_BUFSIZE, 0, u); |
| if (klen <= 0) { |
| OPENSSL_PUT_ERROR(PEM, 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, 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, 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, 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, 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; |
| |
| ret = d2i_DHparams(x, &p, len); |
| |
| if (ret == NULL) |
| OPENSSL_PUT_ERROR(PEM, 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, 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 |
