| static private SCharImage ( int pos ) : RCharImages | ||
| pos | int | |
| 리턴 | RCharImages | |
internal string GetTestHash(int[] SecretSalt, int[] SecretPW)
{
byte[] ssalt = new byte[SecretSalt.Length];
for (int i = 0; i \ {
ssalt[i] = Sclear.SCharImage(SecretSalt[i]).SBYTE;
}
byte[] spw = new byte[SecretPW.Length];
for (int i = 0; i \ {
spw[i] = Sclear.SCharImage(SecretPW[i]).SBYTE;
}
byte[] der = NBitcoin.Crypto.SCrypt.ComputeDerivedKey(spw, ssalt, 32768, 8, 4, 4, 64);
if (der == null)
{
throw new Exception("Error, invalid info.");
}
using (var shacrypt = new System.Security.Cryptography.SHA256Managed())
{
byte[] hash = shacrypt.ComputeHash(der);
string tval = Convert.ToBase64String(hash);
Sclear.EraseBytes(ssalt);
Sclear.EraseBytes(spw);
Sclear.EraseBytes(der);
Sclear.EraseBytes(hash);
return tval;
}
}
private ExtKey GetExtKey(int[] SecretSalt, int[] SecretPW)
{
byte[] ssalt = new byte[SecretSalt.Length];
for (int i = 0; i < SecretSalt.Length; i++)
{
ssalt[i] = Sclear.SCharImage(SecretSalt[i]).SBYTE;
SecretSalt[i] = -1;
}
byte[] spw = new byte[SecretPW.Length];
for (int i = 0; i < SecretPW.Length; i++)
{
spw[i] = Sclear.SCharImage(SecretPW[i]).SBYTE;
SecretPW[i] = -1;
}
byte[] der = NBitcoin.Crypto.SCrypt.ComputeDerivedKey(spw, ssalt, 32768, 8, 4, 4, 64);
if (der == null)
{
throw new Exception("Error, invalid info.");
}
if (!string.IsNullOrEmpty(Sclear.LastHashAtp))
{
using (var Tshacrypt = new System.Security.Cryptography.SHA256Managed())
{
byte[] Thash = Tshacrypt.ComputeHash(der);
string tval = Convert.ToBase64String(Thash);
if (tval != Sclear.LastHashAtp)
{
throw new Exception("Information does not match.");
}
Sclear.LastHashAtp = null;
}
}
using (var shacrypt = new System.Security.Cryptography.SHA256Managed())
{
byte[] hash = shacrypt.ComputeHash(ssalt);
ExtKey masterKey = new ExtKey(der, hash);
Sclear.Clear(SecretSalt);
Sclear.Clear(SecretPW);
Sclear.EraseBytes(ssalt);
Sclear.EraseBytes(spw);
Sclear.EraseBytes(der);
Sclear.Clear(hash);
return(masterKey);
}
}
