NekoX/TMessagesProj/jni/jni.c

135 lines
4.4 KiB
C

#include <stdio.h>
#include <string.h>
#include <jni.h>
#include <sys/types.h>
#include <inttypes.h>
#include <stdlib.h>
#include "aes/aes.h"
#include "utils.h"
#include "sqlite.h"
#include "gif.h"
jint JNI_OnLoad(JavaVM *vm, void *reserved) {
JNIEnv *env = 0;
srand(time(NULL));
if ((*vm)->GetEnv(vm, (void **) &env, JNI_VERSION_1_4) != JNI_OK) {
return -1;
}
if (sqliteOnJNILoad(vm, reserved, env) == -1) {
return -1;
}
gifOnJNILoad(vm, reserved, env);
return JNI_VERSION_1_4;
}
void JNI_OnUnload(JavaVM *vm, void *reserved) {
gifOnJNIUnload(vm, reserved);
}
JNIEXPORT jbyteArray Java_org_telegram_messenger_Utilities_aesIgeEncryption(JNIEnv *env, jclass class, jbyteArray _what, jbyteArray _key, jbyteArray _iv, jboolean encrypt, jboolean changeIv, jint l) {
unsigned char *what = (unsigned char *)(*env)->GetByteArrayElements(env, _what, NULL);
unsigned char *key = (unsigned char *)(*env)->GetByteArrayElements(env, _key, NULL);
unsigned char *__iv = (unsigned char *)(*env)->GetByteArrayElements(env, _iv, NULL);
unsigned char *iv = 0;
if (!changeIv) {
iv = (unsigned char *)malloc((*env)->GetArrayLength(env, _iv));
memcpy(iv, __iv, (*env)->GetArrayLength(env, _iv));
} else {
iv = __iv;
}
int len = l == 0 ? (*env)->GetArrayLength(env, _what) : l;
AES_KEY akey;
if (!encrypt) {
AES_set_decrypt_key(key, (*env)->GetArrayLength(env, _key) * 8, &akey);
AES_ige_encrypt(what, what, len, &akey, iv, AES_DECRYPT);
} else {
AES_set_encrypt_key(key, (*env)->GetArrayLength(env, _key) * 8, &akey);
AES_ige_encrypt(what, what, len, &akey, iv, AES_ENCRYPT);
}
(*env)->ReleaseByteArrayElements(env, _what, what, 0);
(*env)->ReleaseByteArrayElements(env, _key, key, JNI_ABORT);
if (!changeIv) {
(*env)->ReleaseByteArrayElements(env, _iv, __iv, JNI_ABORT);
free(iv);
} else {
(*env)->ReleaseByteArrayElements(env, _iv, __iv, 0);
}
return _what;
}
JNIEXPORT void Java_org_telegram_messenger_Utilities_aesIgeEncryption2(JNIEnv *env, jclass class, jobject _what, jbyteArray _key, jbyteArray _iv, jboolean encrypt, jboolean changeIv, jint l) {
jbyte *what = (*env)->GetDirectBufferAddress(env, _what);
unsigned char *key = (unsigned char *)(*env)->GetByteArrayElements(env, _key, NULL);
unsigned char *__iv = (unsigned char *)(*env)->GetByteArrayElements(env, _iv, NULL);
unsigned char *iv = 0;
if (!changeIv) {
iv = (unsigned char *)malloc((*env)->GetArrayLength(env, _iv));
memcpy(iv, __iv, (*env)->GetArrayLength(env, _iv));
} else {
iv = __iv;
}
AES_KEY akey;
if (!encrypt) {
AES_set_decrypt_key(key, (*env)->GetArrayLength(env, _key) * 8, &akey);
AES_ige_encrypt(what, what, l, &akey, iv, AES_DECRYPT);
} else {
AES_set_encrypt_key(key, (*env)->GetArrayLength(env, _key) * 8, &akey);
AES_ige_encrypt(what, what, l, &akey, iv, AES_ENCRYPT);
}
(*env)->ReleaseByteArrayElements(env, _key, key, JNI_ABORT);
if (!changeIv) {
(*env)->ReleaseByteArrayElements(env, _iv, __iv, JNI_ABORT);
free(iv);
} else {
(*env)->ReleaseByteArrayElements(env, _iv, __iv, 0);
}
}
uint64_t gcd(uint64_t a, uint64_t b){
while(a != 0 && b != 0) {
while((b & 1) == 0) b >>= 1;
while((a & 1) == 0) a >>= 1;
if(a > b) a -= b; else b -= a;
}
return b == 0 ? a : b;
}
JNIEXPORT jlong Java_org_telegram_messenger_Utilities_doPQNative(JNIEnv* env, jclass class, jlong _what) {
uint64_t what = _what;
int it = 0, i, j;
uint64_t g = 0;
for (i = 0; i < 3 || it < 1000; i++){
int q = ((lrand48() & 15) + 17) % what;
uint64_t x = (long long)lrand48() % (what - 1) + 1, y = x;
int lim = 1 << (i + 18), j;
for(j = 1; j < lim; j++){
++it;
uint64_t a = x, b = x, c = q;
while(b){
if(b & 1){
c += a;
if(c >= what) c -= what;
}
a += a;
if(a >= what) a -= what;
b >>= 1;
}
x = c;
uint64_t z = x < y ? what + x - y : x - y;
g = gcd(z, what);
if(g != 1) break;
if(!(j & (j - 1))) y = x;
}
if(g > 1 && g < what) break;
}
return g;
}