1 files changed, 62 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/des/ofb64ede.c b/openssl-1.1.0h/crypto/des/ofb64ede.c
new file mode 100644
index 0000000..a551a07
--- /dev/null
+++ b/openssl-1.1.0h/crypto/des/ofb64ede.c
@@ -0,0 +1,62 @@
+/*
+ * 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"
+
+/*
+ * 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 DES_ede3_ofb64_encrypt(register const unsigned char *in,
+                            register unsigned char *out, long length,
+                            DES_key_schedule *k1, DES_key_schedule *k2,
+                            DES_key_schedule *k3, DES_cblock *ivec, int *num)
+{
+    register DES_LONG v0, v1;
+    register int n = *num;
+    register long l = length;
+    DES_cblock d;
+    register char *dp;
+    DES_LONG ti[2];
+    unsigned char *iv;
+    int save = 0;
+
+    iv = &(*ivec)[0];
+    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) {
+            /* ti[0]=v0; */
+            /* ti[1]=v1; */
+            DES_encrypt3(ti, k1, k2, k3);
+            v0 = ti[0];
+            v1 = ti[1];
+
+            dp = (char *)d;
+            l2c(v0, dp);
+            l2c(v1, dp);
+            save++;
+        }
+        *(out++) = *(in++) ^ d[n];
+        n = (n + 1) & 0x07;
+    }
+    if (save) {
+        iv = &(*ivec)[0];
+        l2c(v0, iv);
+        l2c(v1, iv);
+    }
+    v0 = v1 = ti[0] = ti[1] = 0;
+    *num = n;
+}