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/pcbc_enc.c | 66 ++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 openssl-1.1.0h/crypto/des/pcbc_enc.c

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

diff --git a/openssl-1.1.0h/crypto/des/pcbc_enc.c b/openssl-1.1.0h/crypto/des/pcbc_enc.c
new file mode 100644
index 0000000..0fa058f
--- /dev/null
+++ b/openssl-1.1.0h/crypto/des/pcbc_enc.c
@@ -0,0 +1,66 @@
+/*
+ * 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 "des_locl.h"
+
+void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output,
+                      long length, DES_key_schedule *schedule,
+                      DES_cblock *ivec, int enc)
+{
+    register DES_LONG sin0, sin1, xor0, xor1, tout0, tout1;
+    DES_LONG tin[2];
+    const unsigned char *in;
+    unsigned char *out, *iv;
+
+    in = input;
+    out = output;
+    iv = &(*ivec)[0];
+
+    if (enc) {
+        c2l(iv, xor0);
+        c2l(iv, xor1);
+        for (; length > 0; length -= 8) {
+            if (length >= 8) {
+                c2l(in, sin0);
+                c2l(in, sin1);
+            } else
+                c2ln(in, sin0, sin1, length);
+            tin[0] = sin0 ^ xor0;
+            tin[1] = sin1 ^ xor1;
+            DES_encrypt1((DES_LONG *)tin, schedule, DES_ENCRYPT);
+            tout0 = tin[0];
+            tout1 = tin[1];
+            xor0 = sin0 ^ tout0;
+            xor1 = sin1 ^ tout1;
+            l2c(tout0, out);
+            l2c(tout1, out);
+        }
+    } else {
+        c2l(iv, xor0);
+        c2l(iv, xor1);
+        for (; length > 0; length -= 8) {
+            c2l(in, sin0);
+            c2l(in, sin1);
+            tin[0] = sin0;
+            tin[1] = sin1;
+            DES_encrypt1((DES_LONG *)tin, schedule, DES_DECRYPT);
+            tout0 = tin[0] ^ xor0;
+            tout1 = tin[1] ^ xor1;
+            if (length >= 8) {
+                l2c(tout0, out);
+                l2c(tout1, out);
+            } else
+                l2cn(tout0, tout1, out, length);
+            xor0 = tout0 ^ sin0;
+            xor1 = tout1 ^ sin1;
+        }
+    }
+    tin[0] = tin[1] = 0;
+    sin0 = sin1 = xor0 = xor1 = tout0 = tout1 = 0;
+}
-- 
cgit v1.2.3