/// <summary> Calculates the bitshares address from a bitcoin public key. </summary>
///
/// <remarks> Paul, 08/12/2014. </remarks>
///
/// <param name="compressedBtcPubKey"> The compressed btc pub key. </param>
/// <param name="ripe"> The ripe. </param>
///
/// <returns> The calculated bitshares address from btc pub key bytes. </returns>
public static byte[] ComputeBitsharesAddressFromBtcPubKey(byte[] compressedBtcPubKey, RIPEMD160 ripe)
{
byte[] sha512 = Crypto.ComputeSha512(compressedBtcPubKey);
byte[] addr = ripe.ComputeHash(sha512);
byte[] check = ripe.ComputeHash(addr);
byte[] addrFinal = new byte[20 + 4];
addr.CopyTo(addrFinal, 0);
Buffer.BlockCopy(check, 0, addrFinal, 20, 4);
return addrFinal;
}
public void Execute()
{
Progress(0.5, 1.0);
if (inputData != null && inputData.Length >= 0)
{
System.Security.Cryptography.RIPEMD160 ripeMd160Hash = System.Security.Cryptography.RIPEMD160.Create();
using (CStreamReader reader = inputData.CreateReader())
{
OutputData = ripeMd160Hash.ComputeHash(reader);
}
GuiLogMessage("Hash created.", NotificationLevel.Info);
Progress(1, 1);
}
else
{
if (inputData == null)
{
GuiLogMessage("Received null value for CryptoolStream.", NotificationLevel.Warning);
}
else
{
GuiLogMessage("No input stream.", NotificationLevel.Warning);
}
}
Progress(1.0, 1.0);
}
public override string StringHashAlgorithm(string value)
{
System.Security.Cryptography.RIPEMD160 md5_160Bit = System.Security.Cryptography.RIPEMD160.Create();
byte[] bytes = md5_160Bit.ComputeHash(System.Text.ASCIIEncoding.UTF8.GetBytes(value));
StringBuilder sb = new StringBuilder();
foreach (var b in bytes)
{
sb.Append(b.ToString("x2"));
}
return(sb.ToString());
}
public void RIPEMD160_c (string testName, RIPEMD160 hash, byte[] input, byte[] result)
{
MemoryStream ms = new MemoryStream (input);
byte[] output = hash.ComputeHash (ms);
AssertEquals (testName + ".c.1", result, output);
AssertEquals (testName + ".c.2", result, hash.Hash);
// required or next operation will still return old hash
hash.Initialize ();
}
public void RIPEMD160_b (string testName, RIPEMD160 hash, byte[] input, byte[] result)
{
byte[] output = hash.ComputeHash (input, 0, input.Length);
AssertEquals (testName + ".b.1", result, output);
AssertEquals (testName + ".b.2", result, hash.Hash);
// required or next operation will still return old hash
hash.Initialize ();
}
/// <summary> Calculates the bitshares pubilc key from bitcoin public key. </summary>
///
/// <remarks> Paul, 08/12/2014. </remarks>
///
/// <param name="compressedBtcPubKey"> The compressed btc pub key. </param>
/// <param name="ripe"> The ripe. </param>
///
/// <returns> The calculated bitshares pub key from btc pub key bytes. </returns>
public static byte[] ComputeBitsharesPubKeyFromBtcPubKey(byte[] compressedBtcPubKey, RIPEMD160 ripe)
{
byte[] pubkeyCheck = ripe.ComputeHash(compressedBtcPubKey);
byte[] pubkeyFinal = new byte[37];
compressedBtcPubKey.CopyTo(pubkeyFinal, 0);
Buffer.BlockCopy(pubkeyCheck, 0, pubkeyFinal, 37 - 4, 4);
return pubkeyFinal;
}
public override byte[] ByteHashAlgorithm(string value)
{
System.Security.Cryptography.RIPEMD160 md5_160Bit = System.Security.Cryptography.RIPEMD160.Create();
byte[] bytes = md5_160Bit.ComputeHash(System.Text.ASCIIEncoding.UTF8.GetBytes(value));
return(bytes);
}
