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
109 lines
2.9 KiB
C++
109 lines
2.9 KiB
C++
// Copyright 2019 The BoringSSL Authors
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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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#include <openssl/evp.h>
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#include <openssl/curve25519.h>
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#include <openssl/err.h>
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#include <openssl/mem.h>
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#include "internal.h"
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// X25519 has no parameters to copy.
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static int pkey_x25519_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src) { return 1; }
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static int pkey_x25519_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey) {
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X25519_KEY *key =
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reinterpret_cast<X25519_KEY *>(OPENSSL_malloc(sizeof(X25519_KEY)));
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if (key == NULL) {
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return 0;
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}
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evp_pkey_set_method(pkey, &x25519_asn1_meth);
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X25519_keypair(key->pub, key->priv);
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key->has_private = 1;
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OPENSSL_free(pkey->pkey);
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pkey->pkey = key;
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return 1;
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}
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static int pkey_x25519_derive(EVP_PKEY_CTX *ctx, uint8_t *out,
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size_t *out_len) {
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if (ctx->pkey == NULL || ctx->peerkey == NULL) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_KEYS_NOT_SET);
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return 0;
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}
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const X25519_KEY *our_key =
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reinterpret_cast<const X25519_KEY *>(ctx->pkey->pkey);
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const X25519_KEY *peer_key =
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reinterpret_cast<const X25519_KEY *>(ctx->peerkey->pkey);
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if (our_key == NULL || peer_key == NULL) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_KEYS_NOT_SET);
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return 0;
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}
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if (!our_key->has_private) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_NOT_A_PRIVATE_KEY);
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return 0;
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}
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if (out != NULL) {
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if (*out_len < 32) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_BUFFER_TOO_SMALL);
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return 0;
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}
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if (!X25519(out, our_key->priv, peer_key->pub)) {
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OPENSSL_PUT_ERROR(EVP, EVP_R_INVALID_PEER_KEY);
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return 0;
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}
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}
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*out_len = 32;
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return 1;
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}
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static int pkey_x25519_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2) {
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switch (type) {
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case EVP_PKEY_CTRL_PEER_KEY:
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// |EVP_PKEY_derive_set_peer| requires the key implement this command,
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// even if it is a no-op.
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return 1;
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default:
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OPENSSL_PUT_ERROR(EVP, EVP_R_COMMAND_NOT_SUPPORTED);
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return 0;
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}
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}
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const EVP_PKEY_METHOD x25519_pkey_meth = {
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/*pkey_id=*/EVP_PKEY_X25519,
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/*init=*/NULL,
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/*copy=*/pkey_x25519_copy,
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/*cleanup=*/NULL,
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/*keygen=*/pkey_x25519_keygen,
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/*sign=*/NULL,
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/*sign_message=*/NULL,
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/*verify=*/NULL,
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/*verify_message=*/NULL,
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/*verify_recover=*/NULL,
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/*encrypt=*/NULL,
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/*decrypt=*/NULL,
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/*derive=*/pkey_x25519_derive,
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/*paramgen=*/NULL,
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/*ctrl=*/pkey_x25519_ctrl,
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};
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