From aa4d426b4d3527d7e166df1a05058c9a4a0f6683 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <wk@koszkonutek-tmp.pl.eu.org>
Date: Fri, 30 Apr 2021 00:33:56 +0200
Subject: initial/final commit

---
 openssl-1.1.0h/crypto/des/str2key.c | 97 +++++++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 openssl-1.1.0h/crypto/des/str2key.c

(limited to 'openssl-1.1.0h/crypto/des/str2key.c')

diff --git a/openssl-1.1.0h/crypto/des/str2key.c b/openssl-1.1.0h/crypto/des/str2key.c
new file mode 100644
index 0000000..78998a1
--- /dev/null
+++ b/openssl-1.1.0h/crypto/des/str2key.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (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 <openssl/crypto.h>
+#include "des_locl.h"
+
+void DES_string_to_key(const char *str, DES_cblock *key)
+{
+    DES_key_schedule ks;
+    int i, length;
+
+    memset(key, 0, 8);
+    length = strlen(str);
+#ifdef OLD_STR_TO_KEY
+    for (i = 0; i < length; i++)
+        (*key)[i % 8] ^= (str[i] << 1);
+#else                           /* MIT COMPATIBLE */
+    for (i = 0; i < length; i++) {
+        register unsigned char j = str[i];
+
+        if ((i % 16) < 8)
+            (*key)[i % 8] ^= (j << 1);
+        else {
+            /* Reverse the bit order 05/05/92 eay */
+            j = ((j << 4) & 0xf0) | ((j >> 4) & 0x0f);
+            j = ((j << 2) & 0xcc) | ((j >> 2) & 0x33);
+            j = ((j << 1) & 0xaa) | ((j >> 1) & 0x55);
+            (*key)[7 - (i % 8)] ^= j;
+        }
+    }
+#endif
+    DES_set_odd_parity(key);
+    DES_set_key_unchecked(key, &ks);
+    DES_cbc_cksum((const unsigned char *)str, key, length, &ks, key);
+    OPENSSL_cleanse(&ks, sizeof(ks));
+    DES_set_odd_parity(key);
+}
+
+void DES_string_to_2keys(const char *str, DES_cblock *key1, DES_cblock *key2)
+{
+    DES_key_schedule ks;
+    int i, length;
+
+    memset(key1, 0, 8);
+    memset(key2, 0, 8);
+    length = strlen(str);
+#ifdef OLD_STR_TO_KEY
+    if (length <= 8) {
+        for (i = 0; i < length; i++) {
+            (*key2)[i] = (*key1)[i] = (str[i] << 1);
+        }
+    } else {
+        for (i = 0; i < length; i++) {
+            if ((i / 8) & 1)
+                (*key2)[i % 8] ^= (str[i] << 1);
+            else
+                (*key1)[i % 8] ^= (str[i] << 1);
+        }
+    }
+#else                           /* MIT COMPATIBLE */
+    for (i = 0; i < length; i++) {
+        register unsigned char j = str[i];
+
+        if ((i % 32) < 16) {
+            if ((i % 16) < 8)
+                (*key1)[i % 8] ^= (j << 1);
+            else
+                (*key2)[i % 8] ^= (j << 1);
+        } else {
+            j = ((j << 4) & 0xf0) | ((j >> 4) & 0x0f);
+            j = ((j << 2) & 0xcc) | ((j >> 2) & 0x33);
+            j = ((j << 1) & 0xaa) | ((j >> 1) & 0x55);
+            if ((i % 16) < 8)
+                (*key1)[7 - (i % 8)] ^= j;
+            else
+                (*key2)[7 - (i % 8)] ^= j;
+        }
+    }
+    if (length <= 8)
+        memcpy(key2, key1, 8);
+#endif
+    DES_set_odd_parity(key1);
+    DES_set_odd_parity(key2);
+    DES_set_key_unchecked(key1, &ks);
+    DES_cbc_cksum((const unsigned char *)str, key1, length, &ks, key1);
+    DES_set_key_unchecked(key2, &ks);
+    DES_cbc_cksum((const unsigned char *)str, key2, length, &ks, key2);
+    OPENSSL_cleanse(&ks, sizeof(ks));
+    DES_set_odd_parity(key1);
+    DES_set_odd_parity(key2);
+}
-- 
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