/// <summary> Construct from base58 bitshares public key </summary>
///
/// <remarks> Paul, 08/12/2014. </remarks>
///
/// <param name="base58BtsPubKey"> The base 58 bts pub key. </param>
public BitsharesPubKey(string base58BtsPubKey)
{
m_ripe = RIPEMD160.Create();
if (base58BtsPubKey.Length == 54)
{
base58BtsPubKey = base58BtsPubKey.Substring(4, base58BtsPubKey.Length - 4);
}
else if (base58BtsPubKey.Length == 53)
{
base58BtsPubKey = base58BtsPubKey.Substring(3, base58BtsPubKey.Length - 3);
}
else
{
throw new NotImplementedException();
}
byte[] data = Base58.ToByteArray(base58BtsPubKey);
Debug.Assert(data.Length == 37);
byte[] pubkeyCheck = RIPEMD160.Create().ComputeHash(data, 0, 33);
// check the hash first four bytes are equal to the last four bytes of the pub key
for (int i = 0; i < 4; i++)
{
if (pubkeyCheck[i] != data[i + 33])
{
throw new BadChecksumException();
}
}
m_compressed = new byte[33];
Array.Copy(data, 0, m_compressed, 0, m_compressed.Length);
}
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);
}
/// <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 static byte[] RipeMd160(byte[] text)
{
lock (ripeMd160Lock)
{
if (ripeMd160Alg == null)
{
ripeMd160Alg = RIPEMD160.Create();
}
ripeMd160Alg.Initialize();
return ripeMd160Alg.ComputeHash(text);
}
}
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());
}
/// <summary>Creates an instance of the default implementation of the <see cref="T:System.Security.Cryptography.RIPEMD160" /> hash algorithm.</summary>
/// <returns>A new instance of the <see cref="T:System.Security.Cryptography.RIPEMD160" /> hash algorithm.</returns>
/// <exception cref="T:System.Reflection.TargetInvocationException">The algorithm was used with Federal Information Processing Standards (FIPS) mode enabled, but it is not FIPS-compatible.</exception>
/// <PermissionSet>
/// <IPermission class="System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.3600.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" version="1" Flags="UnmanagedCode" />
/// </PermissionSet>
public new static RIPEMD160 Create()
{
return(RIPEMD160.Create("System.Security.Cryptography.RIPEMD160"));
}
public void RIPEMD160_e (string testName, RIPEMD160 hash, byte[] input, byte[] result)
{
byte[] copy = new byte [input.Length];
for (int i=0; i < input.Length - 1; i++)
hash.TransformBlock (input, i, 1, copy, i);
hash.TransformFinalBlock (input, input.Length - 1, 1);
AssertEquals (testName + ".e", result, hash.Hash);
// required or next operation will still return old hash
hash.Initialize ();
}
public void RIPEMD160_d (string testName, RIPEMD160 hash, byte[] input, byte[] result)
{
hash.TransformFinalBlock (input, 0, input.Length);
AssertEquals (testName + ".d", result, hash.Hash);
// required or next operation will still return old hash
hash.Initialize ();
}
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 ();
}
public AddressAndPubKeyTests()
{
m_ripe = RIPEMD160.Create();
}
/// <summary> Construct from compressed public key </summary>
///
/// <remarks> Paul, 08/12/2014. </remarks>
///
/// <param name="compressed"> The compressed. </param>
public BitsharesPubKey(byte[] compressed)
{
m_compressed = compressed;
m_ripe = RIPEMD160.Create();
}
/// <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;
}
/// <summary> Calculates the bitshares public 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. </returns>
public static string ComputeBitsharesPubKey(byte[] compressedBtcPubKey, RIPEMD160 ripe)
{
return kAddressPrefix + Base58.FromByteArray(ComputeBitsharesPubKeyFromBtcPubKey(compressedBtcPubKey, ripe));
}
public BitsharesKeyPair(string wifPrivateKey)
{
m_btcKeyPair = new KeyPair(wifPrivateKey);
m_ripe = System.Security.Cryptography.RIPEMD160.Create();
}
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);
}
