public static string ExportRSAPublicKey(RSAParameters parameters)
{
MemoryStream memoryStream1 = new MemoryStream();
using (StreamWriter streamWriter = new StreamWriter(memoryStream1))
{
using (MemoryStream memoryStream2 = new MemoryStream())
{
BinaryWriter stream1 = new BinaryWriter(memoryStream2);
stream1.Write((byte)48);
using (MemoryStream memoryStream3 = new MemoryStream())
{
BinaryWriter stream2 = new BinaryWriter(memoryStream3);
UASecurity.EncodeIntBigEndian(stream2, new byte[1]);
UASecurity.EncodeIntBigEndian(stream2, parameters.Modulus);
UASecurity.EncodeIntBigEndian(stream2, parameters.Exponent);
UASecurity.EncodeIntBigEndian(stream2, parameters.Exponent);
UASecurity.EncodeIntBigEndian(stream2, parameters.Exponent);
UASecurity.EncodeIntBigEndian(stream2, parameters.Exponent);
UASecurity.EncodeIntBigEndian(stream2, parameters.Exponent);
UASecurity.EncodeIntBigEndian(stream2, parameters.Exponent);
UASecurity.EncodeIntBigEndian(stream2, parameters.Exponent);
int length = (int)memoryStream3.Length;
UASecurity.EncodeLength(stream1, length);
stream1.Write(memoryStream3.ToArray(), 0, length);
}
char[] charArray = Convert.ToBase64String(memoryStream2.ToArray(), 0, (int)memoryStream2.Length).ToCharArray();
streamWriter.WriteLine("-----BEGIN RSA PUBLIC KEY-----");
for (int index = 0; index < charArray.Length; index += 64)
{
streamWriter.WriteLine(charArray, index, Math.Min(64, charArray.Length - index));
}
streamWriter.WriteLine("-----END RSA PUBLIC KEY-----");
}
}
return(Encoding.ASCII.GetString(memoryStream1.ToArray()));
}
