Initial import

1 files changed, 217 insertions, 0 deletions

diff --git a/openssl/crypto/pkcs12/p12_key.c b/openssl/crypto/pkcs12/p12_key.c
new file mode 100644
index 0000000..424203f
--- /dev/null
+++ b/openssl/crypto/pkcs12/p12_key.c
@@ -0,0 +1,217 @@
+/* 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).
+ *
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/pkcs12.h>
+#include <openssl/bn.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
+
+/* PKCS12 compatible key/IV generation */
+#ifndef min
+#define min(a,b) ((a) < (b) ? (a) : (b))
+#endif
+
+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)
+{
+	int ret;
+	unsigned char *unipass;
+	int uniplen;
+
+	if(!pass) {
+		unipass = NULL;
+		uniplen = 0;
+	} else if (!OPENSSL_asc2uni(pass, passlen, &unipass, &uniplen)) {
+		PKCS12err(PKCS12_F_PKCS12_KEY_GEN_ASC,ERR_R_MALLOC_FAILURE);
+		return 0;
+	}
+	ret = PKCS12_key_gen_uni(unipass, uniplen, salt, saltlen,
+						 id, iter, n, out, md_type);
+	if (ret <= 0)
+	    return 0;
+	if(unipass) {
+		OPENSSL_cleanse(unipass, uniplen);	/* Clear password from memory */
+		OPENSSL_free(unipass);
+	}
+	return ret;
+}
+
+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)
+{
+	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
+
+#if 0
+	if (!pass) {
+		PKCS12err(PKCS12_F_PKCS12_KEY_GEN_UNI,ERR_R_PASSED_NULL_PARAMETER);
+		return 0;
+	}
+#endif
+
+	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)
+	    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 || !Ai || !B || !I || !Ij || !Bpl1)
+		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 (;;) {
+		EVP_DigestInit_ex(&ctx, md_type, NULL);
+		EVP_DigestUpdate(&ctx, D, v);
+		EVP_DigestUpdate(&ctx, I, Ilen);
+		EVP_DigestFinal_ex(&ctx, Ai, NULL);
+		for (j = 1; j < iter; j++) {
+			EVP_DigestInit_ex(&ctx, md_type, NULL);
+			EVP_DigestUpdate(&ctx, Ai, u);
+			EVP_DigestFinal_ex(&ctx, Ai, NULL);
+		}
+		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;
+			BN_bn2bin (Ij, B);
+			Ijlen = BN_num_bytes (Ij);
+			/* If more than 2^(v*8) - 1 cut off MSB */
+			if (Ijlen > v) {
+				BN_bn2bin (Ij, B);
+				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);
+				BN_bn2bin(Ij, I + j + v - Ijlen); 
+#endif
+			} else BN_bn2bin (Ij, I + j);
+		}
+	}
+
+err:
+	PKCS12err(PKCS12_F_PKCS12_KEY_GEN_UNI,ERR_R_MALLOC_FAILURE);
+
+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;
+}
+#ifdef DEBUG_KEYGEN
+void h__dump (unsigned char *p, int len)
+{
+	for (; len --; p++) fprintf(stderr, "%02X", *p);
+	fprintf(stderr, "\n");	
+}
+#endif