/* $OpenBSD: pem_pk8.c,v 1.14 2023/07/07 13:40:44 beck Exp $ */ /* 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 #include #include #include #include #include #include #include #include static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc, char *kstr, int klen, pem_password_cb *cb, void *u); static int do_pk8pkey_fp(FILE *bp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc, char *kstr, int klen, pem_password_cb *cb, void *u); /* These functions write a private key in PKCS#8 format: it is a "drop in" * replacement for PEM_write_bio_PrivateKey() and friends. As usual if 'enc' * is NULL then it uses the unencrypted private key form. The 'nid' versions * uses PKCS#5 v1.5 PBE algorithms whereas the others use PKCS#5 v2.0. */ int PEM_write_bio_PKCS8PrivateKey_nid(BIO *bp, EVP_PKEY *x, int nid, char *kstr, int klen, pem_password_cb *cb, void *u) { return do_pk8pkey(bp, x, 0, nid, NULL, kstr, klen, cb, u); } LCRYPTO_ALIAS(PEM_write_bio_PKCS8PrivateKey_nid); int PEM_write_bio_PKCS8PrivateKey(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc, char *kstr, int klen, pem_password_cb *cb, void *u) { return do_pk8pkey(bp, x, 0, -1, enc, kstr, klen, cb, u); } LCRYPTO_ALIAS(PEM_write_bio_PKCS8PrivateKey); int i2d_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY *x, const EVP_CIPHER *enc, char *kstr, int klen, pem_password_cb *cb, void *u) { return do_pk8pkey(bp, x, 1, -1, enc, kstr, klen, cb, u); } LCRYPTO_ALIAS(i2d_PKCS8PrivateKey_bio); int i2d_PKCS8PrivateKey_nid_bio(BIO *bp, EVP_PKEY *x, int nid, char *kstr, int klen, pem_password_cb *cb, void *u) { return do_pk8pkey(bp, x, 1, nid, NULL, kstr, klen, cb, u); } LCRYPTO_ALIAS(i2d_PKCS8PrivateKey_nid_bio); static int do_pk8pkey(BIO *bp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc, char *kstr, int klen, pem_password_cb *cb, void *u) { X509_SIG *p8; PKCS8_PRIV_KEY_INFO *p8inf; char buf[PEM_BUFSIZE]; int ret; if (!(p8inf = EVP_PKEY2PKCS8(x))) { PEMerror(PEM_R_ERROR_CONVERTING_PRIVATE_KEY); return 0; } if (enc || (nid != -1)) { if (!kstr) { if (!cb) klen = PEM_def_callback(buf, PEM_BUFSIZE, 1, u); else klen = cb(buf, PEM_BUFSIZE, 1, u); if (klen <= 0) { PEMerror(PEM_R_READ_KEY); PKCS8_PRIV_KEY_INFO_free(p8inf); return 0; } kstr = buf; } p8 = PKCS8_encrypt(nid, enc, kstr, klen, NULL, 0, 0, p8inf); if (kstr == buf) explicit_bzero(buf, klen); PKCS8_PRIV_KEY_INFO_free(p8inf); if (isder) ret = i2d_PKCS8_bio(bp, p8); else ret = PEM_write_bio_PKCS8(bp, p8); X509_SIG_free(p8); return ret; } else { if (isder) ret = i2d_PKCS8_PRIV_KEY_INFO_bio(bp, p8inf); else ret = PEM_write_bio_PKCS8_PRIV_KEY_INFO(bp, p8inf); PKCS8_PRIV_KEY_INFO_free(p8inf); return ret; } } EVP_PKEY * d2i_PKCS8PrivateKey_bio(BIO *bp, EVP_PKEY **x, pem_password_cb *cb, void *u) { PKCS8_PRIV_KEY_INFO *p8inf = NULL; X509_SIG *p8 = NULL; int klen; EVP_PKEY *ret; char psbuf[PEM_BUFSIZE]; p8 = d2i_PKCS8_bio(bp, NULL); if (!p8) return NULL; if (cb) klen = cb(psbuf, PEM_BUFSIZE, 0, u); else klen = PEM_def_callback(psbuf, PEM_BUFSIZE, 0, u); if (klen <= 0) { PEMerror(PEM_R_BAD_PASSWORD_READ); X509_SIG_free(p8); return NULL; } p8inf = PKCS8_decrypt(p8, psbuf, klen); X509_SIG_free(p8); if (!p8inf) return NULL; ret = EVP_PKCS82PKEY(p8inf); PKCS8_PRIV_KEY_INFO_free(p8inf); if (!ret) return NULL; if (x) { EVP_PKEY_free(*x); *x = ret; } return ret; } LCRYPTO_ALIAS(d2i_PKCS8PrivateKey_bio); int i2d_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc, char *kstr, int klen, pem_password_cb *cb, void *u) { return do_pk8pkey_fp(fp, x, 1, -1, enc, kstr, klen, cb, u); } LCRYPTO_ALIAS(i2d_PKCS8PrivateKey_fp); int i2d_PKCS8PrivateKey_nid_fp(FILE *fp, EVP_PKEY *x, int nid, char *kstr, int klen, pem_password_cb *cb, void *u) { return do_pk8pkey_fp(fp, x, 1, nid, NULL, kstr, klen, cb, u); } LCRYPTO_ALIAS(i2d_PKCS8PrivateKey_nid_fp); int PEM_write_PKCS8PrivateKey_nid(FILE *fp, EVP_PKEY *x, int nid, char *kstr, int klen, pem_password_cb *cb, void *u) { return do_pk8pkey_fp(fp, x, 0, nid, NULL, kstr, klen, cb, u); } LCRYPTO_ALIAS(PEM_write_PKCS8PrivateKey_nid); int PEM_write_PKCS8PrivateKey(FILE *fp, EVP_PKEY *x, const EVP_CIPHER *enc, char *kstr, int klen, pem_password_cb *cb, void *u) { return do_pk8pkey_fp(fp, x, 0, -1, enc, kstr, klen, cb, u); } LCRYPTO_ALIAS(PEM_write_PKCS8PrivateKey); static int do_pk8pkey_fp(FILE *fp, EVP_PKEY *x, int isder, int nid, const EVP_CIPHER *enc, char *kstr, int klen, pem_password_cb *cb, void *u) { BIO *bp; int ret; if (!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) { PEMerror(ERR_R_BUF_LIB); return (0); } ret = do_pk8pkey(bp, x, isder, nid, enc, kstr, klen, cb, u); BIO_free(bp); return ret; } EVP_PKEY * d2i_PKCS8PrivateKey_fp(FILE *fp, EVP_PKEY **x, pem_password_cb *cb, void *u) { BIO *bp; EVP_PKEY *ret; if (!(bp = BIO_new_fp(fp, BIO_NOCLOSE))) { PEMerror(ERR_R_BUF_LIB); return NULL; } ret = d2i_PKCS8PrivateKey_bio(bp, x, cb, u); BIO_free(bp); return ret; } LCRYPTO_ALIAS(d2i_PKCS8PrivateKey_fp); X509_SIG * PEM_read_PKCS8(FILE *fp, X509_SIG **x, pem_password_cb *cb, void *u) { return PEM_ASN1_read((d2i_of_void *)d2i_X509_SIG, PEM_STRING_PKCS8, fp, (void **)x, cb, u); } LCRYPTO_ALIAS(PEM_read_PKCS8); int PEM_write_PKCS8(FILE *fp, X509_SIG *x) { return PEM_ASN1_write((i2d_of_void *)i2d_X509_SIG, PEM_STRING_PKCS8, fp, x, NULL, NULL, 0, NULL, NULL); } LCRYPTO_ALIAS(PEM_write_PKCS8); X509_SIG * PEM_read_bio_PKCS8(BIO *bp, X509_SIG **x, pem_password_cb *cb, void *u) { return PEM_ASN1_read_bio((d2i_of_void *)d2i_X509_SIG, PEM_STRING_PKCS8, bp, (void **)x, cb, u); } LCRYPTO_ALIAS(PEM_read_bio_PKCS8); int PEM_write_bio_PKCS8(BIO *bp, X509_SIG *x) { return PEM_ASN1_write_bio((i2d_of_void *)i2d_X509_SIG, PEM_STRING_PKCS8, bp, x, NULL, NULL, 0, NULL, NULL); } LCRYPTO_ALIAS(PEM_write_bio_PKCS8); PKCS8_PRIV_KEY_INFO * PEM_read_PKCS8_PRIV_KEY_INFO(FILE *fp, PKCS8_PRIV_KEY_INFO **x, pem_password_cb *cb, void *u) { return PEM_ASN1_read((d2i_of_void *)d2i_PKCS8_PRIV_KEY_INFO, PEM_STRING_PKCS8INF, fp, (void **)x, cb, u); } LCRYPTO_ALIAS(PEM_read_PKCS8_PRIV_KEY_INFO); int PEM_write_PKCS8_PRIV_KEY_INFO(FILE *fp, PKCS8_PRIV_KEY_INFO *x) { return PEM_ASN1_write((i2d_of_void *)i2d_PKCS8_PRIV_KEY_INFO, PEM_STRING_PKCS8INF, fp, x, NULL, NULL, 0, NULL, NULL); } LCRYPTO_ALIAS(PEM_write_PKCS8_PRIV_KEY_INFO); PKCS8_PRIV_KEY_INFO * PEM_read_bio_PKCS8_PRIV_KEY_INFO(BIO *bp, PKCS8_PRIV_KEY_INFO **x, pem_password_cb *cb, void *u) { return PEM_ASN1_read_bio((d2i_of_void *)d2i_PKCS8_PRIV_KEY_INFO, PEM_STRING_PKCS8INF, bp, (void **)x, cb, u); } LCRYPTO_ALIAS(PEM_read_bio_PKCS8_PRIV_KEY_INFO); int PEM_write_bio_PKCS8_PRIV_KEY_INFO(BIO *bp, PKCS8_PRIV_KEY_INFO *x) { return PEM_ASN1_write_bio((i2d_of_void *)i2d_PKCS8_PRIV_KEY_INFO, PEM_STRING_PKCS8INF, bp, x, NULL, NULL, 0, NULL, NULL); } LCRYPTO_ALIAS(PEM_write_bio_PKCS8_PRIV_KEY_INFO);