zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/lib/libssl/openssl-1.1.1o/crypto/bn/rsaz_exp.h b/ap/lib/libssl/openssl-1.1.1o/crypto/bn/rsaz_exp.h
new file mode 100644
index 0000000..1532a7e
--- /dev/null
+++ b/ap/lib/libssl/openssl-1.1.1o/crypto/bn/rsaz_exp.h
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2013-2022 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright (c) 2012, Intel Corporation. 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
+ *
+ * Originally written by Shay Gueron (1, 2), and Vlad Krasnov (1)
+ * (1) Intel Corporation, Israel Development Center, Haifa, Israel
+ * (2) University of Haifa, Israel
+ */
+
+#ifndef OSSL_CRYPTO_BN_RSAZ_EXP_H
+# define OSSL_CRYPTO_BN_RSAZ_EXP_H
+
+# undef RSAZ_ENABLED
+# if defined(OPENSSL_BN_ASM_MONT) && \
+ (defined(__x86_64) || defined(__x86_64__) || \
+ defined(_M_AMD64) || defined(_M_X64))
+# define RSAZ_ENABLED
+
+# include <openssl/bn.h>
+# include "internal/constant_time.h"
+# include "bn_local.h"
+
+void RSAZ_1024_mod_exp_avx2(BN_ULONG result[16],
+ const BN_ULONG base_norm[16],
+ const BN_ULONG exponent[16],
+ const BN_ULONG m_norm[16], const BN_ULONG RR[16],
+ BN_ULONG k0);
+int rsaz_avx2_eligible(void);
+
+void RSAZ_512_mod_exp(BN_ULONG result[8],
+ const BN_ULONG base_norm[8], const BN_ULONG exponent[8],
+ const BN_ULONG m_norm[8], BN_ULONG k0,
+ const BN_ULONG RR[8]);
+
+static ossl_inline void bn_select_words(BN_ULONG *r, BN_ULONG mask,
+ const BN_ULONG *a,
+ const BN_ULONG *b, size_t num)
+{
+ size_t i;
+
+ for (i = 0; i < num; i++) {
+ r[i] = constant_time_select_64(mask, a[i], b[i]);
+ }
+}
+
+static ossl_inline BN_ULONG bn_reduce_once_in_place(BN_ULONG *r,
+ BN_ULONG carry,
+ const BN_ULONG *m,
+ BN_ULONG *tmp, size_t num)
+{
+ carry -= bn_sub_words(tmp, r, m, num);
+ bn_select_words(r, carry, r /* tmp < 0 */, tmp /* tmp >= 0 */, num);
+ return carry;
+}
+
+# endif
+
+#endif