public static byte[] GetScriptHashFromPublicKey(byte[] publicKey)
{
byte[] script = GetScriptFromPublicKey(publicKey);
var scripthash = sha256.ComputeHash(script);
scripthash = ripemd160.ComputeHash(scripthash);
return(scripthash);
}
} // End Function Sha256_2
public static string BitcoinAddressHash(string bla)
{
byte[] ba = System.Text.Encoding.UTF8.GetBytes(bla);
/*
* // https://www.nuget.org/packages/System.Security.Cryptography.Algorithms/
* // https://dotnet.myget.org/feed/cli-deps/package/nuget/System.Security.Cryptography.Algorithms
* // PM> Install-Package System.Security.Cryptography.Algorithms -Version 4.2.0
* using (var algorithm = System.Security.Cryptography.Algorithms.SHA256.Create())
* {
* // Create the at_hash using the access token returned by CreateAccessTokenAsync.
* var hash = algorithm.ComputeHash(Encoding.ASCII.GetBytes(response.AccessToken));
*
* // Note: only the left-most half of the hash of the octets is used.
* // See http://openid.net/specs/openid-connect-core-1_0.html#CodeIDToken
* identity.AddClaim(JwtRegisteredClaimNames.AtHash, Base64UrlEncoder.Encode(hash, 0, hash.Length / 2));
* }
*/
using (System.Security.Cryptography.SHA256CryptoServiceProvider sha256 = new System.Security.Cryptography.SHA256CryptoServiceProvider())
{
using (System.Security.Cryptography.RIPEMD160 md160 = System.Security.Cryptography.RIPEMD160.Create())
{
ba = sha256.ComputeHash(ba);
ba = md160.ComputeHash(ba);
}
/*
* using (System.Security.Cryptography.RIPEMD160 md160 = new System.Security.Cryptography.RIPEMD160Managed())
* {
* ba = sha256.ComputeHash(ba);
* ba = md160.ComputeHash(ba);
* } // End Using md160
*/
} // End Using sha256
return(System.BitConverter.ToString(ba).Replace("-", "").ToLowerInvariant());
} // End Function BitcoinAddressHash
/// <summary>
/// Register an account. Returns true if succeed, otherwise return false and write logs.
/// </summary>
/// <param name="username"></param>
/// <param name="rawPassword"></param>
/// <param name="hashType"></param>
/// <returns></returns>
public static bool RegisterUser(string username, string rawPassword, int hashType)
{
try
{
string hashSaltBase64 = null;
string passwordHashBase64 = null;
byte[] saltBytes;
System.Security.Cryptography.HMAC hmac;
switch (hashType)
{
case (int)Enums.HMAC.MD5:
hashSaltBase64 = null;
using (System.Security.Cryptography.MD5 hasher = System.Security.Cryptography.MD5.Create())
{
passwordHashBase64 = Convert.ToBase64String(hasher.ComputeHash(Encoding.UTF8.GetBytes(rawPassword)));
}
break;
case (int)Enums.HMAC.RIPEMD160:
hashSaltBase64 = null;
using (System.Security.Cryptography.RIPEMD160 hasher = System.Security.Cryptography.RIPEMD160.Create())
{
passwordHashBase64 = Convert.ToBase64String(hasher.ComputeHash(Encoding.UTF8.GetBytes(rawPassword)));
}
break;
case (int)Enums.HMAC.SHA1:
hashSaltBase64 = null;
using (System.Security.Cryptography.SHA1 hasher = System.Security.Cryptography.SHA1.Create())
{
passwordHashBase64 = Convert.ToBase64String(hasher.ComputeHash(Encoding.UTF8.GetBytes(rawPassword)));
}
break;
case (int)Enums.HMAC.SHA256:
hashSaltBase64 = null;
using (System.Security.Cryptography.SHA256 hasher = System.Security.Cryptography.SHA256.Create())
{
passwordHashBase64 = Convert.ToBase64String(hasher.ComputeHash(Encoding.UTF8.GetBytes(rawPassword)));
}
break;
case (int)Enums.HMAC.SHA384:
hashSaltBase64 = null;
using (System.Security.Cryptography.SHA384 hasher = System.Security.Cryptography.SHA384.Create())
{
passwordHashBase64 = Convert.ToBase64String(hasher.ComputeHash(Encoding.UTF8.GetBytes(rawPassword)));
}
break;
case (int)Enums.HMAC.SHA512:
hashSaltBase64 = null;
using (System.Security.Cryptography.SHA512 hasher = System.Security.Cryptography.SHA512.Create())
{
passwordHashBase64 = Convert.ToBase64String(hasher.ComputeHash(Encoding.UTF8.GetBytes(rawPassword)));
}
break;
case (int)Enums.HMAC.HMACMD5:
saltBytes = new byte[Settings.InitSetting.Instance.MaxNumberOfBytesInSalt];
new Random().NextBytes(saltBytes);
hashSaltBase64 = Convert.ToBase64String(saltBytes);
hmac = new System.Security.Cryptography.HMACMD5(saltBytes);
passwordHashBase64 = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(rawPassword)));
break;
case (int)Enums.HMAC.HMACRIPEMD160:
saltBytes = new byte[Settings.InitSetting.Instance.MaxNumberOfBytesInSalt];
new Random().NextBytes(saltBytes);
hashSaltBase64 = Convert.ToBase64String(saltBytes);
hmac = new System.Security.Cryptography.HMACRIPEMD160(saltBytes);
passwordHashBase64 = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(rawPassword)));
break;
case (int)Enums.HMAC.HMACSHA1:
saltBytes = new byte[Settings.InitSetting.Instance.MaxNumberOfBytesInSalt];
new Random().NextBytes(saltBytes);
hashSaltBase64 = Convert.ToBase64String(saltBytes);
hmac = new System.Security.Cryptography.HMACSHA1(saltBytes);
passwordHashBase64 = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(rawPassword)));
break;
case (int)Enums.HMAC.HMACSHA256:
saltBytes = new byte[Settings.InitSetting.Instance.MaxNumberOfBytesInSalt];
new Random().NextBytes(saltBytes);
hashSaltBase64 = Convert.ToBase64String(saltBytes);
hmac = new System.Security.Cryptography.HMACSHA256(saltBytes);
passwordHashBase64 = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(rawPassword)));
break;
case (int)Enums.HMAC.HMACSHA384:
saltBytes = new byte[Settings.InitSetting.Instance.MaxNumberOfBytesInSalt];
new Random().NextBytes(saltBytes);
hashSaltBase64 = Convert.ToBase64String(saltBytes);
hmac = new System.Security.Cryptography.HMACSHA384(saltBytes);
passwordHashBase64 = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(rawPassword)));
break;
case (int)Enums.HMAC.HMACSHA512:
saltBytes = new byte[Settings.InitSetting.Instance.MaxNumberOfBytesInSalt];
new Random().NextBytes(saltBytes);
hashSaltBase64 = Convert.ToBase64String(saltBytes);
hmac = new System.Security.Cryptography.HMACSHA512(saltBytes);
passwordHashBase64 = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(rawPassword)));
break;
default:
throw new NotImplementedException("Unspecified hash type.");
}
var acc = new Account()
{
Uname = username,
HashSaltBase64 = hashSaltBase64,
HashTypeId = hashType,
PasswordHashBase64 = passwordHashBase64,
IsTwoFactor = false,
TwoFactorSecretBase32 = null
};
using (AuthorizeEntities ctx = new AuthorizeEntities())
{
ctx.Accounts.Add(acc);
ctx.SaveChanges();
}
}
catch (Exception ex)
{
Log4netLogger.Error(MethodBase.GetCurrentMethod().DeclaringType, "Cannot register user", ex);
return(false);
}
return(true);
}
/// <summary>
/// Hash of string as byte array.
/// </summary>
/// <param name="inString">Input string</param>
/// <returns>Output bytes</returns>
public byte[] hashString(string inString)
{
byte[] toHash = System.Text.Encoding.ASCII.GetBytes(inString);
return(csp.ComputeHash(toHash));
}
public static bool Login(string username, string password)
{
bool isOk = false;
byte[] saltBytes;
System.Security.Cryptography.HMAC hmac;
try
{
using (AuthorizeEntities ctx = new AuthorizeEntities())
{
var acc = ctx.Accounts.Where(x => x.Uname == username).FirstOrDefault();
if (acc != null)
{
switch (acc.HashTypeId)
{
case (int)Enums.HMAC.MD5:
using (System.Security.Cryptography.MD5 hasher = System.Security.Cryptography.MD5.Create())
{
isOk = acc.PasswordHashBase64.Equals(Convert.ToBase64String(hasher.ComputeHash(Encoding.UTF8.GetBytes(password))));
}
break;
case (int)Enums.HMAC.RIPEMD160:
using (System.Security.Cryptography.RIPEMD160 hasher = System.Security.Cryptography.RIPEMD160.Create())
{
isOk = acc.PasswordHashBase64.Equals(Convert.ToBase64String(hasher.ComputeHash(Encoding.UTF8.GetBytes(password))));
}
break;
case (int)Enums.HMAC.SHA1:
using (System.Security.Cryptography.SHA1 hasher = System.Security.Cryptography.SHA1.Create())
{
isOk = acc.PasswordHashBase64.Equals(Convert.ToBase64String(hasher.ComputeHash(Encoding.UTF8.GetBytes(password))));
}
break;
case (int)Enums.HMAC.SHA256:
using (System.Security.Cryptography.SHA256 hasher = System.Security.Cryptography.SHA256.Create())
{
isOk = acc.PasswordHashBase64.Equals(Convert.ToBase64String(hasher.ComputeHash(Encoding.UTF8.GetBytes(password))));
}
break;
case (int)Enums.HMAC.SHA384:
using (System.Security.Cryptography.SHA384 hasher = System.Security.Cryptography.SHA384.Create())
{
isOk = acc.PasswordHashBase64.Equals(Convert.ToBase64String(hasher.ComputeHash(Encoding.UTF8.GetBytes(password))));
}
break;
case (int)Enums.HMAC.SHA512:
using (System.Security.Cryptography.SHA512 hasher = System.Security.Cryptography.SHA512.Create())
{
isOk = acc.PasswordHashBase64.Equals(Convert.ToBase64String(hasher.ComputeHash(Encoding.UTF8.GetBytes(password))));
}
break;
case (int)Enums.HMAC.HMACMD5:
saltBytes = Convert.FromBase64String(acc.HashSaltBase64);
hmac = new System.Security.Cryptography.HMACMD5(saltBytes);
isOk = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(password))).Equals(acc.PasswordHashBase64);
break;
case (int)Enums.HMAC.HMACRIPEMD160:
saltBytes = Convert.FromBase64String(acc.HashSaltBase64);
hmac = new System.Security.Cryptography.HMACRIPEMD160(saltBytes);
isOk = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(password))).Equals(acc.PasswordHashBase64);
break;
case (int)Enums.HMAC.HMACSHA1:
saltBytes = Convert.FromBase64String(acc.HashSaltBase64);
hmac = new System.Security.Cryptography.HMACSHA1(saltBytes);
isOk = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(password))).Equals(acc.PasswordHashBase64);
break;
case (int)Enums.HMAC.HMACSHA256:
saltBytes = Convert.FromBase64String(acc.HashSaltBase64);
hmac = new System.Security.Cryptography.HMACSHA256(saltBytes);
isOk = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(password))).Equals(acc.PasswordHashBase64);
break;
case (int)Enums.HMAC.HMACSHA384:
saltBytes = Convert.FromBase64String(acc.HashSaltBase64);
hmac = new System.Security.Cryptography.HMACSHA384(saltBytes);
isOk = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(password))).Equals(acc.PasswordHashBase64);
break;
case (int)Enums.HMAC.HMACSHA512:
saltBytes = Convert.FromBase64String(acc.HashSaltBase64);
hmac = new System.Security.Cryptography.HMACSHA512(saltBytes);
isOk = Convert.ToBase64String(hmac.ComputeHash(Encoding.UTF8.GetBytes(password))).Equals(acc.PasswordHashBase64);
break;
default:
throw new NotImplementedException("Unspecified hash type.");
}
}
}
}
catch (Exception ex)
{
Log4netLogger.Error(MethodBase.GetCurrentMethod().DeclaringType, "Cannot login", ex);
isOk = false;
}
return(isOk);
}