private static RSACryptoServiceProvider DecodePrivateKeyInfo(byte[] pkcs8)
{
RSACryptoServiceProvider rSACryptoServiceProvider;
byte[] numArray = new byte[] { 48, 13, 6, 9, 42, 134, 72, 134, 247, 13, 1, 1, 1, 5, 0 };
byte[] numArray1 = new byte[15];
MemoryStream memoryStream = new MemoryStream(pkcs8);
int length = (int)memoryStream.Length;
BinaryReader binaryReader = new BinaryReader(memoryStream);
byte num = 0;
ushort num1 = 0;
try
{
try
{
num1 = binaryReader.ReadUInt16();
if (num1 == 33072)
{
binaryReader.ReadByte();
}
else if (num1 != 33328)
{
rSACryptoServiceProvider = null;
return(rSACryptoServiceProvider);
}
else
{
binaryReader.ReadInt16();
}
num = binaryReader.ReadByte();
if (num == 2)
{
num1 = binaryReader.ReadUInt16();
if (num1 != 1)
{
rSACryptoServiceProvider = null;
}
else if (RSAFromPkcs8.CompareBytearrays(binaryReader.ReadBytes(15), numArray))
{
num = binaryReader.ReadByte();
if (num == 4)
{
num = binaryReader.ReadByte();
if (num == 129)
{
binaryReader.ReadByte();
}
else if (num == 130)
{
binaryReader.ReadUInt16();
}
byte[] numArray2 = binaryReader.ReadBytes((int)((long)length - memoryStream.Position));
rSACryptoServiceProvider = RSAFromPkcs8.DecodeRSAPrivateKey(numArray2);
}
else
{
rSACryptoServiceProvider = null;
}
}
else
{
rSACryptoServiceProvider = null;
}
}
else
{
rSACryptoServiceProvider = null;
}
}
catch (Exception exception)
{
rSACryptoServiceProvider = null;
}
}
finally
{
binaryReader.Close();
}
return(rSACryptoServiceProvider);
}
private static RSACryptoServiceProvider DecodePrivateKeyInfo(byte[] pkcs8)
{
byte[] b = new byte[]
{
48,
13,
6,
9,
42,
134,
72,
134,
247,
13,
1,
1,
1,
5,
0
};
byte[] a = new byte[15];
MemoryStream memoryStream = new MemoryStream(pkcs8);
int num = (int)memoryStream.Length;
BinaryReader binaryReader = new BinaryReader(memoryStream);
RSACryptoServiceProvider result;
try
{
ushort num2 = binaryReader.ReadUInt16();
if (num2 == 33072)
{
binaryReader.ReadByte();
}
else
{
if (num2 != 33328)
{
result = null;
return(result);
}
binaryReader.ReadInt16();
}
byte b2 = binaryReader.ReadByte();
if (b2 != 2)
{
result = null;
}
else
{
num2 = binaryReader.ReadUInt16();
if (num2 != 1)
{
result = null;
}
else
{
a = binaryReader.ReadBytes(15);
if (!RSAFromPkcs8.CompareBytearrays(a, b))
{
result = null;
}
else
{
b2 = binaryReader.ReadByte();
if (b2 != 4)
{
result = null;
}
else
{
b2 = binaryReader.ReadByte();
if (b2 == 129)
{
binaryReader.ReadByte();
}
else if (b2 == 130)
{
binaryReader.ReadUInt16();
}
byte[] privkey = binaryReader.ReadBytes((int)((long)num - memoryStream.Position));
RSACryptoServiceProvider rSACryptoServiceProvider = RSAFromPkcs8.DecodeRSAPrivateKey(privkey);
result = rSACryptoServiceProvider;
}
}
}
}
}
catch (Exception)
{
result = null;
}
finally
{
binaryReader.Close();
}
return(result);
}
