intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

1 files changed, 151 insertions, 0 deletions

diff --git a/contrib/libs/openssl/crypto/cast/c_enc.c b/contrib/libs/openssl/crypto/cast/c_enc.c
new file mode 100644
index 0000000000..d27d1fc0a5
--- /dev/null
+++ b/contrib/libs/openssl/crypto/cast/c_enc.c
@@ -0,0 +1,151 @@
+/*
+ * 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/cast.h>
+#include "cast_local.h"
+
+void CAST_encrypt(CAST_LONG *data, const CAST_KEY *key)
+{
+    CAST_LONG l, r, t;
+    const CAST_LONG *k;
+
+    k = &(key->data[0]);
+    l = data[0];
+    r = data[1];
+
+    E_CAST(0, k, l, r, +, ^, -);
+    E_CAST(1, k, r, l, ^, -, +);
+    E_CAST(2, k, l, r, -, +, ^);
+    E_CAST(3, k, r, l, +, ^, -);
+    E_CAST(4, k, l, r, ^, -, +);
+    E_CAST(5, k, r, l, -, +, ^);
+    E_CAST(6, k, l, r, +, ^, -);
+    E_CAST(7, k, r, l, ^, -, +);
+    E_CAST(8, k, l, r, -, +, ^);
+    E_CAST(9, k, r, l, +, ^, -);
+    E_CAST(10, k, l, r, ^, -, +);
+    E_CAST(11, k, r, l, -, +, ^);
+    if (!key->short_key) {
+        E_CAST(12, k, l, r, +, ^, -);
+        E_CAST(13, k, r, l, ^, -, +);
+        E_CAST(14, k, l, r, -, +, ^);
+        E_CAST(15, k, r, l, +, ^, -);
+    }
+
+    data[1] = l & 0xffffffffL;
+    data[0] = r & 0xffffffffL;
+}
+
+void CAST_decrypt(CAST_LONG *data, const CAST_KEY *key)
+{
+    CAST_LONG l, r, t;
+    const CAST_LONG *k;
+
+    k = &(key->data[0]);
+    l = data[0];
+    r = data[1];
+
+    if (!key->short_key) {
+        E_CAST(15, k, l, r, +, ^, -);
+        E_CAST(14, k, r, l, -, +, ^);
+        E_CAST(13, k, l, r, ^, -, +);
+        E_CAST(12, k, r, l, +, ^, -);
+    }
+    E_CAST(11, k, l, r, -, +, ^);
+    E_CAST(10, k, r, l, ^, -, +);
+    E_CAST(9, k, l, r, +, ^, -);
+    E_CAST(8, k, r, l, -, +, ^);
+    E_CAST(7, k, l, r, ^, -, +);
+    E_CAST(6, k, r, l, +, ^, -);
+    E_CAST(5, k, l, r, -, +, ^);
+    E_CAST(4, k, r, l, ^, -, +);
+    E_CAST(3, k, l, r, +, ^, -);
+    E_CAST(2, k, r, l, -, +, ^);
+    E_CAST(1, k, l, r, ^, -, +);
+    E_CAST(0, k, r, l, +, ^, -);
+
+    data[1] = l & 0xffffffffL;
+    data[0] = r & 0xffffffffL;
+}
+
+void CAST_cbc_encrypt(const unsigned char *in, unsigned char *out,
+                      long length, const CAST_KEY *ks, unsigned char *iv,
+                      int enc)
+{
+    register CAST_LONG tin0, tin1;
+    register CAST_LONG tout0, tout1, xor0, xor1;
+    register long l = length;
+    CAST_LONG tin[2];
+
+    if (enc) {
+        n2l(iv, tout0);
+        n2l(iv, tout1);
+        iv -= 8;
+        for (l -= 8; l >= 0; l -= 8) {
+            n2l(in, tin0);
+            n2l(in, tin1);
+            tin0 ^= tout0;
+            tin1 ^= tout1;
+            tin[0] = tin0;
+            tin[1] = tin1;
+            CAST_encrypt(tin, ks);
+            tout0 = tin[0];
+            tout1 = tin[1];
+            l2n(tout0, out);
+            l2n(tout1, out);
+        }
+        if (l != -8) {
+            n2ln(in, tin0, tin1, l + 8);
+            tin0 ^= tout0;
+            tin1 ^= tout1;
+            tin[0] = tin0;
+            tin[1] = tin1;
+            CAST_encrypt(tin, ks);
+            tout0 = tin[0];
+            tout1 = tin[1];
+            l2n(tout0, out);
+            l2n(tout1, out);
+        }
+        l2n(tout0, iv);
+        l2n(tout1, iv);
+    } else {
+        n2l(iv, xor0);
+        n2l(iv, xor1);
+        iv -= 8;
+        for (l -= 8; l >= 0; l -= 8) {
+            n2l(in, tin0);
+            n2l(in, tin1);
+            tin[0] = tin0;
+            tin[1] = tin1;
+            CAST_decrypt(tin, ks);
+            tout0 = tin[0] ^ xor0;
+            tout1 = tin[1] ^ xor1;
+            l2n(tout0, out);
+            l2n(tout1, out);
+            xor0 = tin0;
+            xor1 = tin1;
+        }
+        if (l != -8) {
+            n2l(in, tin0);
+            n2l(in, tin1);
+            tin[0] = tin0;
+            tin[1] = tin1;
+            CAST_decrypt(tin, ks);
+            tout0 = tin[0] ^ xor0;
+            tout1 = tin[1] ^ xor1;
+            l2nn(tout0, tout1, out, l + 8);
+            xor0 = tin0;
+            xor1 = tin1;
+        }
+        l2n(xor0, iv);
+        l2n(xor1, iv);
+    }
+    tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0;
+    tin[0] = tin[1] = 0;
+}