8e79f2ee9c
Based on Nekogram. Key additions: - Rebrand to FoxiGram (app name, APK name, applicationId com.foxigram.app) - Embedded Xray (VLESS+Reality) proxy client via JNI libxray.so - Bundled hidden one-tap proxies (LTE + WiFi), read-only in UI - Auto-restore proxy on restart, rebind to active network (LTE/WiFi) - Server credentials externalized to git-ignored XrayServers.java (+ template) - libxray Go source included; compiled .so, keystore, google-services.json ignored
111 lines
4.6 KiB
C
111 lines
4.6 KiB
C
// Copyright 2013-2016 The OpenSSL Project Authors. All Rights Reserved.
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// Copyright (c) 2012, Intel Corporation. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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// Originally written by Shay Gueron (1, 2), and Vlad Krasnov (1)
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// (1) Intel Corporation, Israel Development Center, Haifa, Israel
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// (2) University of Haifa, Israel
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#ifndef OPENSSL_HEADER_CRYPTO_FIPSMODULE_BN_RSAZ_EXP_H
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#define OPENSSL_HEADER_CRYPTO_FIPSMODULE_BN_RSAZ_EXP_H
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#include <openssl/bn.h>
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#include "internal.h"
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#include "../../internal.h"
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#if !defined(OPENSSL_NO_ASM) && defined(OPENSSL_X86_64)
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#define RSAZ_ENABLED
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// RSAZ_1024_mod_exp_avx2 sets |result| to |base_norm| raised to |exponent|
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// modulo |m_norm|. |base_norm| must be fully-reduced and |exponent| must have
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// the high bit set (it is 1024 bits wide). |RR| and |k0| must be |RR| and |n0|,
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// respectively, extracted from |m_norm|'s |BN_MONT_CTX|. |storage_words| is a
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// temporary buffer that must be aligned to |MOD_EXP_CTIME_ALIGN| bytes.
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void RSAZ_1024_mod_exp_avx2(BN_ULONG result[16], const BN_ULONG base_norm[16],
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const BN_ULONG exponent[16],
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const BN_ULONG m_norm[16], const BN_ULONG RR[16],
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BN_ULONG k0,
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BN_ULONG storage_words[MOD_EXP_CTIME_STORAGE_LEN]);
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inline int rsaz_avx2_capable(void) { return CRYPTO_is_AVX2_capable(); }
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inline int rsaz_avx2_preferred(void) {
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if (CRYPTO_is_BMI1_capable() && CRYPTO_is_BMI2_capable() &&
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CRYPTO_is_ADX_capable()) {
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// If BMI1, BMI2, and ADX are available, x86_64-mont5.pl is faster. See the
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// .Lmulx4x_enter and .Lpowerx5_enter branches.
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return 0;
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}
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return CRYPTO_is_AVX2_capable();
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}
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// Assembly functions.
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// RSAZ represents 1024-bit integers using unsaturated 29-bit limbs stored in
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// 64-bit integers. This requires 36 limbs but padded up to 40.
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//
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// See crypto/bn/asm/rsaz-avx2.pl for further details.
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// rsaz_1024_norm2red_avx2 converts |norm| from |BIGNUM| to RSAZ representation
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// and writes the result to |red|.
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void rsaz_1024_norm2red_avx2(BN_ULONG red[40], const BN_ULONG norm[16]);
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// rsaz_1024_mul_avx2 computes |a| * |b| mod |n| and writes the result to |ret|.
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// Inputs and outputs are in Montgomery form, using RSAZ's representation. |k|
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// is -|n|^-1 mod 2^64 or |n0| from |BN_MONT_CTX|.
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void rsaz_1024_mul_avx2(BN_ULONG ret[40], const BN_ULONG a[40],
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const BN_ULONG b[40], const BN_ULONG n[40], BN_ULONG k);
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// rsaz_1024_mul_avx2 computes |a|^(2*|count|) mod |n| and writes the result to
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// |ret|. Inputs and outputs are in Montgomery form, using RSAZ's
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// representation. |k| is -|n|^-1 mod 2^64 or |n0| from |BN_MONT_CTX|.
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void rsaz_1024_sqr_avx2(BN_ULONG ret[40], const BN_ULONG a[40],
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const BN_ULONG n[40], BN_ULONG k, int count);
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// rsaz_1024_scatter5_avx2 stores |val| at index |i| of |tbl|. |i| must be
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// positive and at most 31. It is treated as public. Note the table only uses 18
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// |BN_ULONG|s per entry instead of 40. It packs two 29-bit limbs into each
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// |BN_ULONG| and only stores 36 limbs rather than the padded 40.
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void rsaz_1024_scatter5_avx2(BN_ULONG tbl[32 * 18], const BN_ULONG val[40],
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int i);
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// rsaz_1024_gather5_avx2 loads index |i| of |tbl| and writes it to |val|. |i|
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// must be positive and at most 31. It is treated as secret. |tbl| must be
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// aligned to 32 bytes.
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void rsaz_1024_gather5_avx2(BN_ULONG val[40], const BN_ULONG tbl[32 * 18],
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int i);
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// rsaz_1024_red2norm_avx2 converts |red| from RSAZ to |BIGNUM| representation
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// and writes the result to |norm|. The result will be <= the modulus.
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//
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// WARNING: The result of this operation may not be fully reduced. |norm| may be
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// the modulus instead of zero. This function should be followed by a call to
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// |bn_reduce_once|.
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void rsaz_1024_red2norm_avx2(BN_ULONG norm[16], const BN_ULONG red[40]);
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#endif // !OPENSSL_NO_ASM && OPENSSL_X86_64
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#if defined(__cplusplus)
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} // extern "C"
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#endif
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#endif // OPENSSL_HEADER_CRYPTO_FIPSMODULE_BN_RSAZ_EXP_H
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