zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/des/cfb_enc.c b/ap/lib/libssl/openssl-1.1.1o/crypto/des/cfb_enc.c
new file mode 100644
index 0000000..1701842
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/des/cfb_enc.c
@@ -0,0 +1,150 @@
+/*
+ * 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 "e_os.h"
+#include "des_local.h"
+#include <assert.h>
+
+/*
+ * The input and output are loaded in multiples of 8 bits. What this means is
+ * that if you hame numbits=12 and length=2 the first 12 bits will be
+ * retrieved from the first byte and half the second. The second 12 bits
+ * will come from the 3rd and half the 4th byte.
+ */
+/*
+ * Until Aug 1 2003 this function did not correctly implement CFB-r, so it
+ * will not be compatible with any encryption prior to that date. Ben.
+ */
+void DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits,
+ long length, DES_key_schedule *schedule,
+ DES_cblock *ivec, int enc)
+{
+ register DES_LONG d0, d1, v0, v1;
+ register unsigned long l = length;
+ register int num = numbits / 8, n = (numbits + 7) / 8, i, rem =
+ numbits % 8;
+ DES_LONG ti[2];
+ unsigned char *iv;
+#ifndef L_ENDIAN
+ unsigned char ovec[16];
+#else
+ unsigned int sh[4];
+ unsigned char *ovec = (unsigned char *)sh;
+
+ /* I kind of count that compiler optimizes away this assertion, */
+ assert(sizeof(sh[0]) == 4); /* as this holds true for all, */
+ /* but 16-bit platforms... */
+
+#endif
+
+ if (numbits <= 0 || numbits > 64)
+ return;
+ iv = &(*ivec)[0];
+ c2l(iv, v0);
+ c2l(iv, v1);
+ if (enc) {
+ while (l >= (unsigned long)n) {
+ l -= n;
+ ti[0] = v0;
+ ti[1] = v1;
+ DES_encrypt1((DES_LONG *)ti, schedule, DES_ENCRYPT);
+ c2ln(in, d0, d1, n);
+ in += n;
+ d0 ^= ti[0];
+ d1 ^= ti[1];
+ l2cn(d0, d1, out, n);
+ out += n;
+ /*
+ * 30-08-94 - eay - changed because l>>32 and l<<32 are bad under
+ * gcc :-(
+ */
+ if (numbits == 32) {
+ v0 = v1;
+ v1 = d0;
+ } else if (numbits == 64) {
+ v0 = d0;
+ v1 = d1;
+ } else {
+#ifndef L_ENDIAN
+ iv = &ovec[0];
+ l2c(v0, iv);
+ l2c(v1, iv);
+ l2c(d0, iv);
+ l2c(d1, iv);
+#else
+ sh[0] = v0, sh[1] = v1, sh[2] = d0, sh[3] = d1;
+#endif
+ if (rem == 0)
+ memmove(ovec, ovec + num, 8);
+ else
+ for (i = 0; i < 8; ++i)
+ ovec[i] = ovec[i + num] << rem |
+ ovec[i + num + 1] >> (8 - rem);
+#ifdef L_ENDIAN
+ v0 = sh[0], v1 = sh[1];
+#else
+ iv = &ovec[0];
+ c2l(iv, v0);
+ c2l(iv, v1);
+#endif
+ }
+ }
+ } else {
+ while (l >= (unsigned long)n) {
+ l -= n;
+ ti[0] = v0;
+ ti[1] = v1;
+ DES_encrypt1((DES_LONG *)ti, schedule, DES_ENCRYPT);
+ c2ln(in, d0, d1, n);
+ in += n;
+ /*
+ * 30-08-94 - eay - changed because l>>32 and l<<32 are bad under
+ * gcc :-(
+ */
+ if (numbits == 32) {
+ v0 = v1;
+ v1 = d0;
+ } else if (numbits == 64) {
+ v0 = d0;
+ v1 = d1;
+ } else {
+#ifndef L_ENDIAN
+ iv = &ovec[0];
+ l2c(v0, iv);
+ l2c(v1, iv);
+ l2c(d0, iv);
+ l2c(d1, iv);
+#else
+ sh[0] = v0, sh[1] = v1, sh[2] = d0, sh[3] = d1;
+#endif
+ if (rem == 0)
+ memmove(ovec, ovec + num, 8);
+ else
+ for (i = 0; i < 8; ++i)
+ ovec[i] = ovec[i + num] << rem |
+ ovec[i + num + 1] >> (8 - rem);
+#ifdef L_ENDIAN
+ v0 = sh[0], v1 = sh[1];
+#else
+ iv = &ovec[0];
+ c2l(iv, v0);
+ c2l(iv, v1);
+#endif
+ }
+ d0 ^= ti[0];
+ d1 ^= ti[1];
+ l2cn(d0, d1, out, n);
+ out += n;
+ }
+ }
+ iv = &(*ivec)[0];
+ l2c(v0, iv);
+ l2c(v1, iv);
+ v0 = v1 = d0 = d1 = ti[0] = ti[1] = 0;
+}