1 files changed, 61 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/rc5/rc5ofb64.c b/openssl-1.1.0h/crypto/rc5/rc5ofb64.c
new file mode 100644
index 0000000..3a41d77
--- /dev/null
+++ b/openssl-1.1.0h/crypto/rc5/rc5ofb64.c
@@ -0,0 +1,61 @@
+/*
+ * 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/rc5.h>
+#include "rc5_locl.h"
+
+/*
+ * The input and output encrypted as though 64bit ofb mode is being used.
+ * The extra state information to record how much of the 64bit block we have
+ * used is contained in *num;
+ */
+void RC5_32_ofb64_encrypt(const unsigned char *in, unsigned char *out,
+                          long length, RC5_32_KEY *schedule,
+                          unsigned char *ivec, int *num)
+{
+    register unsigned long v0, v1, t;
+    register int n = *num;
+    register long l = length;
+    unsigned char d[8];
+    register char *dp;
+    unsigned long ti[2];
+    unsigned char *iv;
+    int save = 0;
+
+    iv = (unsigned char *)ivec;
+    c2l(iv, v0);
+    c2l(iv, v1);
+    ti[0] = v0;
+    ti[1] = v1;
+    dp = (char *)d;
+    l2c(v0, dp);
+    l2c(v1, dp);
+    while (l--) {
+        if (n == 0) {
+            RC5_32_encrypt((unsigned long *)ti, schedule);
+            dp = (char *)d;
+            t = ti[0];
+            l2c(t, dp);
+            t = ti[1];
+            l2c(t, dp);
+            save++;
+        }
+        *(out++) = *(in++) ^ d[n];
+        n = (n + 1) & 0x07;
+    }
+    if (save) {
+        v0 = ti[0];
+        v1 = ti[1];
+        iv = (unsigned char *)ivec;
+        l2c(v0, iv);
+        l2c(v1, iv);
+    }
+    t = v0 = v1 = ti[0] = ti[1] = 0;
+    *num = n;
+}