-/* p12_key.c */
/*
- * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
- * 1999.
- */
-/* ====================================================================
- * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
- *
- * 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 above 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 acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED 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 OpenSSL PROJECT OR
- * ITS 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+ * Copyright 1999-2021 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/pkcs12.h>
#include <openssl/bn.h>
+#include <openssl/trace.h>
+#include <openssl/kdf.h>
+#include <openssl/core_names.h>
+#include "internal/provider.h"
-/* Uncomment out this line to get debugging info about key generation */
-/*
- * #define DEBUG_KEYGEN
- */
-#ifdef DEBUG_KEYGEN
-# include <openssl/bio.h>
-extern BIO *bio_err;
-void h__dump(unsigned char *p, int len);
-#endif
+int PKCS12_key_gen_asc_ex(const char *pass, int passlen, unsigned char *salt,
+ int saltlen, int id, int iter, int n,
+ unsigned char *out, const EVP_MD *md_type,
+ OSSL_LIB_CTX *ctx, const char *propq)
+{
+ int ret;
+ unsigned char *unipass;
+ int uniplen;
-/* PKCS12 compatible key/IV generation */
-#ifndef min
-# define min(a,b) ((a) < (b) ? (a) : (b))
-#endif
+ if (pass == NULL) {
+ unipass = NULL;
+ uniplen = 0;
+ } else if (!OPENSSL_asc2uni(pass, passlen, &unipass, &uniplen)) {
+ ERR_raise(ERR_LIB_PKCS12, ERR_R_PKCS12_LIB);
+ return 0;
+ }
+ ret = PKCS12_key_gen_uni_ex(unipass, uniplen, salt, saltlen, id, iter,
+ n, out, md_type, ctx, propq);
+ OPENSSL_clear_free(unipass, uniplen);
+ return ret > 0;
+}
int PKCS12_key_gen_asc(const char *pass, int passlen, unsigned char *salt,
int saltlen, int id, int iter, int n,
unsigned char *out, const EVP_MD *md_type)
+{
+ return PKCS12_key_gen_asc_ex(pass, passlen, salt, saltlen, id, iter, n,
+ out, md_type, NULL, NULL);
+}
+
+int PKCS12_key_gen_utf8_ex(const char *pass, int passlen, unsigned char *salt,
+ int saltlen, int id, int iter, int n,
+ unsigned char *out, const EVP_MD *md_type,
+ OSSL_LIB_CTX *ctx, const char *propq)
{
int ret;
unsigned char *unipass;
int uniplen;
- if (!pass) {
+ if (pass == NULL) {
unipass = NULL;
uniplen = 0;
- } else if (!OPENSSL_asc2uni(pass, passlen, &unipass, &uniplen)) {
- PKCS12err(PKCS12_F_PKCS12_KEY_GEN_ASC, ERR_R_MALLOC_FAILURE);
+ } else if (!OPENSSL_utf82uni(pass, passlen, &unipass, &uniplen)) {
+ ERR_raise(ERR_LIB_PKCS12, ERR_R_PKCS12_LIB);
return 0;
}
- ret = PKCS12_key_gen_uni(unipass, uniplen, salt, saltlen,
- id, iter, n, out, md_type);
- if (ret <= 0)
- return 0;
+ ret = PKCS12_key_gen_uni_ex(unipass, uniplen, salt, saltlen, id, iter,
+ n, out, md_type, ctx, propq);
OPENSSL_clear_free(unipass, uniplen);
- return ret;
+ return ret > 0;
}
-int PKCS12_key_gen_uni(unsigned char *pass, int passlen, unsigned char *salt,
- int saltlen, int id, int iter, int n,
- unsigned char *out, const EVP_MD *md_type)
+int PKCS12_key_gen_utf8(const char *pass, int passlen, unsigned char *salt,
+ int saltlen, int id, int iter, int n,
+ unsigned char *out, const EVP_MD *md_type)
{
- unsigned char *B, *D, *I, *p, *Ai;
- int Slen, Plen, Ilen, Ijlen;
- int i, j, u, v;
- int ret = 0;
- BIGNUM *Ij, *Bpl1; /* These hold Ij and B + 1 */
- EVP_MD_CTX ctx;
-#ifdef DEBUG_KEYGEN
- unsigned char *tmpout = out;
- int tmpn = n;
-#endif
+ return PKCS12_key_gen_utf8_ex(pass, passlen, salt, saltlen, id, iter, n,
+ out, md_type, NULL, NULL);
+}
- EVP_MD_CTX_init(&ctx);
-#ifdef DEBUG_KEYGEN
- fprintf(stderr, "KEYGEN DEBUG\n");
- fprintf(stderr, "ID %d, ITER %d\n", id, iter);
- fprintf(stderr, "Password (length %d):\n", passlen);
- h__dump(pass, passlen);
- fprintf(stderr, "Salt (length %d):\n", saltlen);
- h__dump(salt, saltlen);
-#endif
- v = EVP_MD_block_size(md_type);
- u = EVP_MD_size(md_type);
- if (u < 0)
+int PKCS12_key_gen_uni_ex(unsigned char *pass, int passlen, unsigned char *salt,
+ int saltlen, int id, int iter, int n,
+ unsigned char *out, const EVP_MD *md_type,
+ OSSL_LIB_CTX *libctx, const char *propq)
+{
+ int res = 0;
+ EVP_KDF *kdf;
+ EVP_KDF_CTX *ctx;
+ OSSL_PARAM params[6], *p = params;
+
+ if (n <= 0)
+ return 0;
+
+ kdf = EVP_KDF_fetch(libctx, "PKCS12KDF", propq);
+ if (kdf == NULL)
+ return 0;
+ ctx = EVP_KDF_CTX_new(kdf);
+ EVP_KDF_free(kdf);
+ if (ctx == NULL)
return 0;
- D = OPENSSL_malloc(v);
- Ai = OPENSSL_malloc(u);
- B = OPENSSL_malloc(v + 1);
- Slen = v * ((saltlen + v - 1) / v);
- if (passlen)
- Plen = v * ((passlen + v - 1) / v);
- else
- Plen = 0;
- Ilen = Slen + Plen;
- I = OPENSSL_malloc(Ilen);
- Ij = BN_new();
- Bpl1 = BN_new();
- if (D == NULL || Ai == NULL || B == NULL || I == NULL || Ij == NULL
- || Bpl1 == NULL)
- goto err;
- for (i = 0; i < v; i++)
- D[i] = id;
- p = I;
- for (i = 0; i < Slen; i++)
- *p++ = salt[i % saltlen];
- for (i = 0; i < Plen; i++)
- *p++ = pass[i % passlen];
- for (;;) {
- if (!EVP_DigestInit_ex(&ctx, md_type, NULL)
- || !EVP_DigestUpdate(&ctx, D, v)
- || !EVP_DigestUpdate(&ctx, I, Ilen)
- || !EVP_DigestFinal_ex(&ctx, Ai, NULL))
- goto err;
- for (j = 1; j < iter; j++) {
- if (!EVP_DigestInit_ex(&ctx, md_type, NULL)
- || !EVP_DigestUpdate(&ctx, Ai, u)
- || !EVP_DigestFinal_ex(&ctx, Ai, NULL))
- goto err;
- }
- memcpy(out, Ai, min(n, u));
- if (u >= n) {
-#ifdef DEBUG_KEYGEN
- fprintf(stderr, "Output KEY (length %d)\n", tmpn);
- h__dump(tmpout, tmpn);
-#endif
- ret = 1;
- goto end;
- }
- n -= u;
- out += u;
- for (j = 0; j < v; j++)
- B[j] = Ai[j % u];
- /* Work out B + 1 first then can use B as tmp space */
- if (!BN_bin2bn(B, v, Bpl1))
- goto err;
- if (!BN_add_word(Bpl1, 1))
- goto err;
- for (j = 0; j < Ilen; j += v) {
- if (!BN_bin2bn(I + j, v, Ij))
- goto err;
- if (!BN_add(Ij, Ij, Bpl1))
- goto err;
- if (!BN_bn2bin(Ij, B))
- goto err;
- Ijlen = BN_num_bytes(Ij);
- /* If more than 2^(v*8) - 1 cut off MSB */
- if (Ijlen > v) {
- if (!BN_bn2bin(Ij, B))
- goto err;
- memcpy(I + j, B + 1, v);
-#ifndef PKCS12_BROKEN_KEYGEN
- /* If less than v bytes pad with zeroes */
- } else if (Ijlen < v) {
- memset(I + j, 0, v - Ijlen);
- if (!BN_bn2bin(Ij, I + j + v - Ijlen))
- goto err;
-#endif
- } else if (!BN_bn2bin(Ij, I + j))
- goto err;
- }
- }
- err:
- PKCS12err(PKCS12_F_PKCS12_KEY_GEN_UNI, ERR_R_MALLOC_FAILURE);
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
+ (char *)EVP_MD_get0_name(md_type),
+ 0);
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_PASSWORD,
+ pass, passlen);
+ *p++ = OSSL_PARAM_construct_octet_string(OSSL_KDF_PARAM_SALT,
+ salt, saltlen);
+ *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_PKCS12_ID, &id);
+ *p++ = OSSL_PARAM_construct_int(OSSL_KDF_PARAM_ITER, &iter);
+ *p = OSSL_PARAM_construct_end();
- end:
- OPENSSL_free(Ai);
- OPENSSL_free(B);
- OPENSSL_free(D);
- OPENSSL_free(I);
- BN_free(Ij);
- BN_free(Bpl1);
- EVP_MD_CTX_cleanup(&ctx);
- return ret;
+ OSSL_TRACE_BEGIN(PKCS12_KEYGEN) {
+ BIO_printf(trc_out, "PKCS12_key_gen_uni_ex(): ID %d, ITER %d\n", id, iter);
+ BIO_printf(trc_out, "Password (length %d):\n", passlen);
+ BIO_hex_string(trc_out, 0, passlen, pass, passlen);
+ BIO_printf(trc_out, "\n");
+ BIO_printf(trc_out, "Salt (length %d):\n", saltlen);
+ BIO_hex_string(trc_out, 0, saltlen, salt, saltlen);
+ BIO_printf(trc_out, "\n");
+ } OSSL_TRACE_END(PKCS12_KEYGEN);
+
+ if (EVP_KDF_derive(ctx, out, (size_t)n, params)) {
+ res = 1;
+ OSSL_TRACE_BEGIN(PKCS12_KEYGEN) {
+ BIO_printf(trc_out, "Output KEY (length %d)\n", n);
+ BIO_hex_string(trc_out, 0, n, out, n);
+ BIO_printf(trc_out, "\n");
+ } OSSL_TRACE_END(PKCS12_KEYGEN);
+ }
+ EVP_KDF_CTX_free(ctx);
+ return res;
}
-#ifdef DEBUG_KEYGEN
-void h__dump(unsigned char *p, int len)
+int PKCS12_key_gen_uni(unsigned char *pass, int passlen, unsigned char *salt,
+ int saltlen, int id, int iter, int n,
+ unsigned char *out, const EVP_MD *md_type)
{
- for (; len--; p++)
- fprintf(stderr, "%02X", *p);
- fprintf(stderr, "\n");
+ return PKCS12_key_gen_uni_ex(pass, passlen, salt, saltlen, id, iter, n, out, md_type, NULL, NULL);
}
-#endif
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