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#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"
#include "image.h"
jint JNI_OnLoad(JavaVM *vm, void *reserved) {
JNIEnv *env = 0;
srand(time(NULL));
if ((*vm)->GetEnv(vm, (void **) &env, JNI_VERSION_1_6) != JNI_OK) {
return -1;
}
if (sqliteOnJNILoad(vm, reserved, env) == -1) {
return -1;
}
if (imageOnJNILoad(vm, reserved, env) == -1) {
return -1;
}
gifOnJNILoad(vm, reserved, env);
return JNI_VERSION_1_6;
}
void JNI_OnUnload(JavaVM *vm, void *reserved) {
gifOnJNIUnload(vm, reserved);
}
JNIEXPORT void Java_org_telegram_messenger_Utilities_aesIgeEncryption(JNIEnv *env, jclass class, jobject buffer, jbyteArray key, jbyteArray iv, jboolean encrypt, int offset, int length) {
jbyte *what = (*env)->GetDirectBufferAddress(env, buffer) + offset;
unsigned char *keyBuff = (unsigned char *)(*env)->GetByteArrayElements(env, key, NULL);
unsigned char *ivBuff = (unsigned char *)(*env)->GetByteArrayElements(env, iv, NULL);
AES_KEY akey;
if (!encrypt) {
AES_set_decrypt_key(keyBuff, 32 * 8, &akey);
AES_ige_encrypt(what, what, length, &akey, ivBuff, AES_DECRYPT);
} else {
AES_set_encrypt_key(keyBuff, 32 * 8, &akey);
AES_ige_encrypt(what, what, length, &akey, ivBuff, AES_ENCRYPT);
}
(*env)->ReleaseByteArrayElements(env, key, keyBuff, JNI_ABORT);
(*env)->ReleaseByteArrayElements(env, iv, ivBuff, 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;
}
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