Initial import

1 files changed, 180 insertions, 0 deletions

diff --git a/openssl/crypto/evp/evp_key.c b/openssl/crypto/evp/evp_key.c
new file mode 100644
index 00000000..839d6a3a
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+++ b/openssl/crypto/evp/evp_key.c
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+/* crypto/evp/evp_key.c */
+/* 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 <stdio.h>
+#include "cryptlib.h"
+#include <openssl/x509.h>
+#include <openssl/objects.h>
+#include <openssl/evp.h>
+#include <openssl/ui.h>
+
+/* should be init to zeros. */
+static char prompt_string[80];
+
+void EVP_set_pw_prompt(const char *prompt)
+	{
+	if (prompt == NULL)
+		prompt_string[0]='\0';
+	else
+		{
+		strncpy(prompt_string,prompt,79);
+		prompt_string[79]='\0';
+		}
+	}
+
+char *EVP_get_pw_prompt(void)
+	{
+	if (prompt_string[0] == '\0')
+		return(NULL);
+	else
+		return(prompt_string);
+	}
+
+/* For historical reasons, the standard function for reading passwords is
+ * in the DES library -- if someone ever wants to disable DES,
+ * this function will fail */
+int EVP_read_pw_string(char *buf, int len, const char *prompt, int verify)
+	{
+	return EVP_read_pw_string_min(buf, 0, len, prompt, verify);
+	}
+
+int EVP_read_pw_string_min(char *buf, int min, int len, const char *prompt, int verify)
+	{
+	int ret;
+	char buff[BUFSIZ];
+	UI *ui;
+
+	if ((prompt == NULL) && (prompt_string[0] != '\0'))
+		prompt=prompt_string;
+	ui = UI_new();
+	UI_add_input_string(ui,prompt,0,buf,min,(len>=BUFSIZ)?BUFSIZ-1:len);
+	if (verify)
+		UI_add_verify_string(ui,prompt,0,
+			buff,min,(len>=BUFSIZ)?BUFSIZ-1:len,buf);
+	ret = UI_process(ui);
+	UI_free(ui);
+	OPENSSL_cleanse(buff,BUFSIZ);
+	return ret;
+	}
+
+int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md, 
+	     const unsigned char *salt, const unsigned char *data, int datal,
+	     int count, unsigned char *key, unsigned char *iv)
+	{
+	EVP_MD_CTX c;
+	unsigned char md_buf[EVP_MAX_MD_SIZE];
+	int niv,nkey,addmd=0;
+	unsigned int mds=0,i;
+
+	nkey=type->key_len;
+	niv=type->iv_len;
+	OPENSSL_assert(nkey <= EVP_MAX_KEY_LENGTH);
+	OPENSSL_assert(niv <= EVP_MAX_IV_LENGTH);
+
+	if (data == NULL) return(nkey);
+
+	EVP_MD_CTX_init(&c);
+	for (;;)
+		{
+		if (!EVP_DigestInit_ex(&c,md, NULL))
+			return 0;
+		if (addmd++)
+			EVP_DigestUpdate(&c,&(md_buf[0]),mds);
+		EVP_DigestUpdate(&c,data,datal);
+		if (salt != NULL)
+			EVP_DigestUpdate(&c,salt,PKCS5_SALT_LEN);
+		EVP_DigestFinal_ex(&c,&(md_buf[0]),&mds);
+
+		for (i=1; i<(unsigned int)count; i++)
+			{
+			EVP_DigestInit_ex(&c,md, NULL);
+			EVP_DigestUpdate(&c,&(md_buf[0]),mds);
+			EVP_DigestFinal_ex(&c,&(md_buf[0]),&mds);
+			}
+		i=0;
+		if (nkey)
+			{
+			for (;;)
+				{
+				if (nkey == 0) break;
+				if (i == mds) break;
+				if (key != NULL)
+					*(key++)=md_buf[i];
+				nkey--;
+				i++;
+				}
+			}
+		if (niv && (i != mds))
+			{
+			for (;;)
+				{
+				if (niv == 0) break;
+				if (i == mds) break;
+				if (iv != NULL)
+					*(iv++)=md_buf[i];
+				niv--;
+				i++;
+				}
+			}
+		if ((nkey == 0) && (niv == 0)) break;
+		}
+	EVP_MD_CTX_cleanup(&c);
+	OPENSSL_cleanse(&(md_buf[0]),EVP_MAX_MD_SIZE);
+	return(type->key_len);
+	}
+