internal static TokenInfo DecryptToken(string token)
{
var tokenBin = token.HexToBinary();
tokenBin = AESHelper.DecryptBytes(tokenBin, _aes_key_token, _aes_iv_token);
return(new TokenInfo
{
RefUserCode = Encoding.UTF8.GetString(tokenBin, 0, tokenBin.Length - 8),
AccessTime = DateTime.FromBinary(BitConverter.ToInt64(tokenBin, tokenBin.Length - 8)),
});
}
internal static TokenInfo DecryptToken(string token)
{
byte[] buffer = AESHelper.DecryptBytes(token.HexToBinary(), AuthSettings._aes_key_token, AuthSettings._aes_iv_token);
if (buffer.Length == 12)
{
return(new TokenInfo {
UserCode = BitConverter.ToInt32(buffer, 0), AuthTime = DateTime.FromBinary(BitConverter.ToInt64(buffer, 4))
});
}
return(new TokenInfo {
UserCode = BitConverter.ToInt64(buffer, 0), AuthTime = DateTime.FromBinary(BitConverter.ToInt64(buffer, 8))
});
}
internal static RequestImeiDto Decrypt(string encryptedImei, string url, string userAgent, double lng, double lat)
{
RequestImeiDto dto = new RequestImeiDto(encryptedImei);
try
{
if (string.IsNullOrEmpty(encryptedImei))
{
dto.IsFake = true;
return(dto);
}
byte[] src = null;
src = AESHelper.DecryptBytes(encryptedImei.HexToBinary(), _aes_key, _aes_iv);
url = (url == null) ? "" : url.ToLower().Trim();
userAgent = (userAgent == null) ? "" : userAgent.ToLower().Trim();
int num = (int)(lng * 10000000.0);
int num2 = (int)(lat * 10000000.0);
string str = string.Format("{0}{1}{2}", url, num, num2);
string str2 = string.Format("{0}{1}{2}", userAgent, num, num2);
int num3 = Math.Abs(GetHashCode2(str));
int num4 = Math.Abs(GetHashCode2(str2));
DateTime time = _init_time.AddSeconds((double)-num3);
int length = src.Length;
int num6 = length - 6;
int key = num3 % num6;
int num8 = num4 % num6;
int num9 = 2;
byte[] dst = new byte[8];
byte[] buffer3 = new byte[num6];
KeyValuePair <int, int>[] pairArray = new KeyValuePair <int, int> [2];
if (key <= num8)
{
pairArray[0] = new KeyValuePair <int, int>(key, 0);
pairArray[1] = new KeyValuePair <int, int>(num8, 1);
}
else
{
pairArray[0] = new KeyValuePair <int, int>(num8, 1);
pairArray[1] = new KeyValuePair <int, int>(key, 0);
}
int srcOffset = 0;
int dstOffset = 0;
for (int i = 0; i < num9; i++)
{
int num13 = pairArray[i].Key + (i * 3);
int num14 = pairArray[i].Value;
int num15 = num13 - srcOffset;
if (num15 != 0)
{
Buffer.BlockCopy(src, srcOffset, buffer3, dstOffset, num15);
dstOffset += num15;
srcOffset += num15;
}
Buffer.BlockCopy(src, num13, dst, num14 * 3, 3);
srcOffset += 3;
}
int count = length - srcOffset;
if (count != 0)
{
Buffer.BlockCopy(src, srcOffset, buffer3, dstOffset, count);
}
long num17 = BitConverter.ToInt64(dst, 0);
dto.GenerateTime = new DateTime?(time.AddMilliseconds((double)num17).ToLocalTime());
dto.RealImei = buffer3.BinaryToHex();
dto.IsFake = false;
return(dto);
}
catch
{
dto.IsFake = true;
return(dto);
}
}
