1109998Smarkm/* crypto/pem/pem_pkey.c */ 2109998Smarkm/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3109998Smarkm * All rights reserved. 4109998Smarkm * 5109998Smarkm * This package is an SSL implementation written 6109998Smarkm * by Eric Young (eay@cryptsoft.com). 7109998Smarkm * The implementation was written so as to conform with Netscapes SSL. 8280304Sjkim * 9109998Smarkm * This library is free for commercial and non-commercial use as long as 10109998Smarkm * the following conditions are aheared to. The following conditions 11109998Smarkm * apply to all code found in this distribution, be it the RC4, RSA, 12109998Smarkm * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13109998Smarkm * included with this distribution is covered by the same copyright terms 14109998Smarkm * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15280304Sjkim * 16109998Smarkm * Copyright remains Eric Young's, and as such any Copyright notices in 17109998Smarkm * the code are not to be removed. 18109998Smarkm * If this package is used in a product, Eric Young should be given attribution 19109998Smarkm * as the author of the parts of the library used. 20109998Smarkm * This can be in the form of a textual message at program startup or 21109998Smarkm * in documentation (online or textual) provided with the package. 22280304Sjkim * 23109998Smarkm * Redistribution and use in source and binary forms, with or without 24109998Smarkm * modification, are permitted provided that the following conditions 25109998Smarkm * are met: 26109998Smarkm * 1. Redistributions of source code must retain the copyright 27109998Smarkm * notice, this list of conditions and the following disclaimer. 28109998Smarkm * 2. Redistributions in binary form must reproduce the above copyright 29109998Smarkm * notice, this list of conditions and the following disclaimer in the 30109998Smarkm * documentation and/or other materials provided with the distribution. 31109998Smarkm * 3. All advertising materials mentioning features or use of this software 32109998Smarkm * must display the following acknowledgement: 33109998Smarkm * "This product includes cryptographic software written by 34109998Smarkm * Eric Young (eay@cryptsoft.com)" 35109998Smarkm * The word 'cryptographic' can be left out if the rouines from the library 36109998Smarkm * being used are not cryptographic related :-). 37280304Sjkim * 4. If you include any Windows specific code (or a derivative thereof) from 38109998Smarkm * the apps directory (application code) you must include an acknowledgement: 39109998Smarkm * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40280304Sjkim * 41109998Smarkm * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42109998Smarkm * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43109998Smarkm * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44109998Smarkm * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45109998Smarkm * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46109998Smarkm * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47109998Smarkm * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48109998Smarkm * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49109998Smarkm * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50109998Smarkm * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51109998Smarkm * SUCH DAMAGE. 52280304Sjkim * 53109998Smarkm * The licence and distribution terms for any publically available version or 54109998Smarkm * derivative of this code cannot be changed. i.e. this code cannot simply be 55109998Smarkm * copied and put under another distribution licence 56109998Smarkm * [including the GNU Public Licence.] 57109998Smarkm */ 58109998Smarkm 59109998Smarkm#include <stdio.h> 60109998Smarkm#include "cryptlib.h" 61109998Smarkm#include <openssl/buffer.h> 62109998Smarkm#include <openssl/objects.h> 63109998Smarkm#include <openssl/evp.h> 64109998Smarkm#include <openssl/rand.h> 65109998Smarkm#include <openssl/x509.h> 66109998Smarkm#include <openssl/pkcs12.h> 67109998Smarkm#include <openssl/pem.h> 68238405Sjkim#ifndef OPENSSL_NO_ENGINE 69280304Sjkim# include <openssl/engine.h> 70238405Sjkim#endif 71238405Sjkim#include "asn1_locl.h" 72109998Smarkm 73238405Sjkimint pem_check_suffix(const char *pem_str, const char *suffix); 74109998Smarkm 75280304SjkimEVP_PKEY *PEM_read_bio_PrivateKey(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, 76280304Sjkim void *u) 77280304Sjkim{ 78280304Sjkim char *nm = NULL; 79280304Sjkim const unsigned char *p = NULL; 80280304Sjkim unsigned char *data = NULL; 81280304Sjkim long len; 82280304Sjkim int slen; 83280304Sjkim EVP_PKEY *ret = NULL; 84109998Smarkm 85280304Sjkim if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_EVP_PKEY, bp, cb, u)) 86280304Sjkim return NULL; 87280304Sjkim p = data; 88109998Smarkm 89280304Sjkim if (strcmp(nm, PEM_STRING_PKCS8INF) == 0) { 90280304Sjkim PKCS8_PRIV_KEY_INFO *p8inf; 91280304Sjkim p8inf = d2i_PKCS8_PRIV_KEY_INFO(NULL, &p, len); 92280304Sjkim if (!p8inf) 93280304Sjkim goto p8err; 94280304Sjkim ret = EVP_PKCS82PKEY(p8inf); 95280304Sjkim if (x) { 96280304Sjkim if (*x) 97280304Sjkim EVP_PKEY_free((EVP_PKEY *)*x); 98280304Sjkim *x = ret; 99280304Sjkim } 100280304Sjkim PKCS8_PRIV_KEY_INFO_free(p8inf); 101280304Sjkim } else if (strcmp(nm, PEM_STRING_PKCS8) == 0) { 102280304Sjkim PKCS8_PRIV_KEY_INFO *p8inf; 103280304Sjkim X509_SIG *p8; 104280304Sjkim int klen; 105280304Sjkim char psbuf[PEM_BUFSIZE]; 106280304Sjkim p8 = d2i_X509_SIG(NULL, &p, len); 107280304Sjkim if (!p8) 108280304Sjkim goto p8err; 109280304Sjkim if (cb) 110280304Sjkim klen = cb(psbuf, PEM_BUFSIZE, 0, u); 111280304Sjkim else 112280304Sjkim klen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u); 113280304Sjkim if (klen <= 0) { 114280304Sjkim PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY, PEM_R_BAD_PASSWORD_READ); 115280304Sjkim X509_SIG_free(p8); 116280304Sjkim goto err; 117280304Sjkim } 118280304Sjkim p8inf = PKCS8_decrypt(p8, psbuf, klen); 119280304Sjkim X509_SIG_free(p8); 120280304Sjkim if (!p8inf) 121280304Sjkim goto p8err; 122280304Sjkim ret = EVP_PKCS82PKEY(p8inf); 123280304Sjkim if (x) { 124280304Sjkim if (*x) 125280304Sjkim EVP_PKEY_free((EVP_PKEY *)*x); 126280304Sjkim *x = ret; 127280304Sjkim } 128280304Sjkim PKCS8_PRIV_KEY_INFO_free(p8inf); 129280304Sjkim } else if ((slen = pem_check_suffix(nm, "PRIVATE KEY")) > 0) { 130280304Sjkim const EVP_PKEY_ASN1_METHOD *ameth; 131280304Sjkim ameth = EVP_PKEY_asn1_find_str(NULL, nm, slen); 132280304Sjkim if (!ameth || !ameth->old_priv_decode) 133280304Sjkim goto p8err; 134280304Sjkim ret = d2i_PrivateKey(ameth->pkey_id, x, &p, len); 135280304Sjkim } 136280304Sjkim p8err: 137280304Sjkim if (ret == NULL) 138280304Sjkim PEMerr(PEM_F_PEM_READ_BIO_PRIVATEKEY, ERR_R_ASN1_LIB); 139280304Sjkim err: 140280304Sjkim OPENSSL_free(nm); 141280304Sjkim OPENSSL_cleanse(data, len); 142280304Sjkim OPENSSL_free(data); 143280304Sjkim return (ret); 144280304Sjkim} 145109998Smarkm 146238405Sjkimint PEM_write_bio_PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc, 147280304Sjkim unsigned char *kstr, int klen, 148280304Sjkim pem_password_cb *cb, void *u) 149280304Sjkim{ 150280304Sjkim char pem_str[80]; 151280304Sjkim if (!x->ameth || x->ameth->priv_encode) 152280304Sjkim return PEM_write_bio_PKCS8PrivateKey(bp, x, enc, 153280304Sjkim (char *)kstr, klen, cb, u); 154238405Sjkim 155280304Sjkim BIO_snprintf(pem_str, 80, "%s PRIVATE KEY", x->ameth->pem_str); 156280304Sjkim return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey, 157280304Sjkim pem_str, bp, x, enc, kstr, klen, cb, u); 158280304Sjkim} 159238405Sjkim 160238405SjkimEVP_PKEY *PEM_read_bio_Parameters(BIO *bp, EVP_PKEY **x) 161280304Sjkim{ 162280304Sjkim char *nm = NULL; 163280304Sjkim const unsigned char *p = NULL; 164280304Sjkim unsigned char *data = NULL; 165280304Sjkim long len; 166280304Sjkim int slen; 167280304Sjkim EVP_PKEY *ret = NULL; 168238405Sjkim 169280304Sjkim if (!PEM_bytes_read_bio(&data, &len, &nm, PEM_STRING_PARAMETERS, 170280304Sjkim bp, 0, NULL)) 171280304Sjkim return NULL; 172280304Sjkim p = data; 173238405Sjkim 174280304Sjkim if ((slen = pem_check_suffix(nm, "PARAMETERS")) > 0) { 175280304Sjkim ret = EVP_PKEY_new(); 176280304Sjkim if (!ret) 177280304Sjkim goto err; 178280304Sjkim if (!EVP_PKEY_set_type_str(ret, nm, slen) 179280304Sjkim || !ret->ameth->param_decode 180280304Sjkim || !ret->ameth->param_decode(ret, &p, len)) { 181280304Sjkim EVP_PKEY_free(ret); 182280304Sjkim ret = NULL; 183280304Sjkim goto err; 184280304Sjkim } 185280304Sjkim if (x) { 186280304Sjkim if (*x) 187280304Sjkim EVP_PKEY_free((EVP_PKEY *)*x); 188280304Sjkim *x = ret; 189280304Sjkim } 190280304Sjkim } 191280304Sjkim err: 192280304Sjkim if (ret == NULL) 193280304Sjkim PEMerr(PEM_F_PEM_READ_BIO_PARAMETERS, ERR_R_ASN1_LIB); 194280304Sjkim OPENSSL_free(nm); 195280304Sjkim OPENSSL_free(data); 196280304Sjkim return (ret); 197280304Sjkim} 198238405Sjkim 199238405Sjkimint PEM_write_bio_Parameters(BIO *bp, EVP_PKEY *x) 200280304Sjkim{ 201280304Sjkim char pem_str[80]; 202280304Sjkim if (!x->ameth || !x->ameth->param_encode) 203280304Sjkim return 0; 204238405Sjkim 205280304Sjkim BIO_snprintf(pem_str, 80, "%s PARAMETERS", x->ameth->pem_str); 206280304Sjkim return PEM_ASN1_write_bio((i2d_of_void *)x->ameth->param_encode, 207280304Sjkim pem_str, bp, x, NULL, NULL, 0, 0, NULL); 208280304Sjkim} 209238405Sjkim 210109998Smarkm#ifndef OPENSSL_NO_FP_API 211280304SjkimEVP_PKEY *PEM_read_PrivateKey(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, 212280304Sjkim void *u) 213280304Sjkim{ 214280304Sjkim BIO *b; 215280304Sjkim EVP_PKEY *ret; 216109998Smarkm 217280304Sjkim if ((b = BIO_new(BIO_s_file())) == NULL) { 218280304Sjkim PEMerr(PEM_F_PEM_READ_PRIVATEKEY, ERR_R_BUF_LIB); 219280304Sjkim return (0); 220280304Sjkim } 221280304Sjkim BIO_set_fp(b, fp, BIO_NOCLOSE); 222280304Sjkim ret = PEM_read_bio_PrivateKey(b, x, cb, u); 223280304Sjkim BIO_free(b); 224280304Sjkim return (ret); 225280304Sjkim} 226238405Sjkim 227238405Sjkimint PEM_write_PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc, 228280304Sjkim unsigned char *kstr, int klen, 229280304Sjkim pem_password_cb *cb, void *u) 230280304Sjkim{ 231280304Sjkim BIO *b; 232280304Sjkim int ret; 233238405Sjkim 234280304Sjkim if ((b = BIO_new_fp(fp, BIO_NOCLOSE)) == NULL) { 235280304Sjkim PEMerr(PEM_F_PEM_WRITE_PRIVATEKEY, ERR_R_BUF_LIB); 236280304Sjkim return 0; 237280304Sjkim } 238280304Sjkim ret = PEM_write_bio_PrivateKey(b, x, enc, kstr, klen, cb, u); 239280304Sjkim BIO_free(b); 240280304Sjkim return ret; 241280304Sjkim} 242238405Sjkim 243109998Smarkm#endif 244