zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/des/ofb64ede.c b/ap/lib/libssl/openssl-1.1.1o/crypto/des/ofb64ede.c
new file mode 100644
index 0000000..68cf2dc
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/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_local.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;
+}