private string ByteArrayToBase58(byte[] ba)
{
Org.BouncyCastle.Math.BigInteger addrremain = new Org.BouncyCastle.Math.BigInteger(1, ba);
Org.BouncyCastle.Math.BigInteger big0 = new Org.BouncyCastle.Math.BigInteger("0");
Org.BouncyCastle.Math.BigInteger big58 = new Org.BouncyCastle.Math.BigInteger("58");
string b58 = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
string rv = "";
while (addrremain.CompareTo(big0) > 0)
{
int d = System.Convert.ToInt32(addrremain.Mod(big58).ToString());
addrremain = addrremain.Divide(big58);
rv = b58.Substring(d, 1) + rv;
}
// handle leading zeroes
foreach (byte b in ba)
{
if (b != 0)
{
break;
}
rv = "1" + rv;
}
return(rv);
}
public static string ToBase58String(byte[] data)
{
Org.BouncyCastle.Math.BigInteger toConvertToBase58 = new Org.BouncyCastle.Math.BigInteger(1, data);
Org.BouncyCastle.Math.BigInteger big0 = new Org.BouncyCastle.Math.BigInteger("0");
Org.BouncyCastle.Math.BigInteger big58 = new Org.BouncyCastle.Math.BigInteger("58");
StringBuilder base58Builder = new StringBuilder();
while (toConvertToBase58.CompareTo(big0) > 0)
{
int d = Convert.ToInt32(toConvertToBase58.Mod(big58).ToString());
toConvertToBase58 = toConvertToBase58.Divide(big58);
base58Builder.Insert(0, b58.Substring(d, 1));
}
// handle leading zeroes
foreach (byte b in data)
{
if (b != 0)
{
break;
}
base58Builder.Insert(0, leadingZeroCharacter);
}
return(base58Builder.ToString());
}
public static string FromByteArray(byte[] ba)
{
Org.BouncyCastle.Math.BigInteger addrremain = new Org.BouncyCastle.Math.BigInteger(1, ba);
Org.BouncyCastle.Math.BigInteger big0 = new Org.BouncyCastle.Math.BigInteger("0");
Org.BouncyCastle.Math.BigInteger big58 = new Org.BouncyCastle.Math.BigInteger("58");
string b58 = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
string rv = "";
while (addrremain.CompareTo(big0) > 0) {
int d = Convert.ToInt32(addrremain.Mod(big58).ToString());
addrremain = addrremain.Divide(big58);
rv = b58.Substring(d, 1) + rv;
}
// handle leading zeroes
foreach (byte b in ba) {
if (b != 0) break;
rv = "1" + rv;
}
return rv;
}
static void test()
{
RsaKeyPairGenerator rsaKeyPairGnr_s = new RsaKeyPairGenerator();
rsaKeyPairGnr_s.Init(new Org.BouncyCastle.Crypto.KeyGenerationParameters(new SecureRandom(), 32));
Org.BouncyCastle.Crypto.AsymmetricCipherKeyPair keyPair_s = rsaKeyPairGnr_s.GenerateKeyPair();
RsaKeyParameters pubKey = (RsaKeyParameters)keyPair_s.Public;
RsaKeyParameters prKey = (RsaKeyParameters)keyPair_s.Private;
IAsymmetricBlockCipher cipher = new RsaEngine();
cipher.Init(true, prKey);
byte[] plain_byte = BitConverter.GetBytes(10);
byte[] enc = cipher.ProcessBlock(plain_byte, 0, plain_byte.Length);
Org.BouncyCastle.Math.BigInteger test = new Org.BouncyCastle.Math.BigInteger(enc);
Console.WriteLine(test);
test = test.Multiply(new Org.BouncyCastle.Math.BigInteger(BitConverter.GetBytes(2)));
test = test.Mod(prKey.Modulus);
Console.WriteLine(test);
byte[] new_enc = test.ToByteArray();
cipher.Init(false, pubKey);
byte[] dec = cipher.ProcessBlock(new_enc, 0, new_enc.Length);
Console.WriteLine(BitConverter.ToInt32(dec));
}