public static byte[] ComputeKeyedHash(IntPtr prov, CalgHash algId, byte [] data, IntPtr key)
{
IntPtr hash = CreateHash(prov, algId, key);
HashData(hash, data);
byte [] baHash = GetHashParam(hash);
DestroyHash(hash);
return baHash;
}
public static IntPtr CreateHash(IntPtr prov, CalgHash algId, IntPtr key)
{
uint flags = 0;
IntPtr hash;
bool retVal = NativeMethods.CryptCreateHash(prov, (uint)algId, key, flags, out hash);
ErrCode ec = Error.HandleRetVal(retVal);
return(hash);
}
public static byte[] ComputeKeyedHash(CalgHash algId, byte [] data, IntPtr key)
{
//dont have to specify enhanced provider,
//because hash sizes i care about dont change
IntPtr prov = Context.AcquireContext(ProvType.RSA_FULL);
byte [] baHash = ComputeKeyedHash(prov, algId, data, key);
Context.ReleaseContext(prov);
return baHash;
}
public static byte [] ComputeKeyedHash(IntPtr prov, CalgHash algId, byte [] data, IntPtr key)
{
IntPtr hash = CreateHash(prov, algId, key);
HashData(hash, data);
byte [] baHash = GetHashParam(hash);
DestroyHash(hash);
return(baHash);
}
public static byte [] ComputeKeyedHash(CalgHash algId, byte [] data, IntPtr key)
{
//dont have to specify enhanced provider,
//because hash sizes i care about dont change
IntPtr prov = Context.AcquireContext(ProvType.RSA_FULL);
byte [] baHash = ComputeKeyedHash(prov, algId, data, key);
Context.ReleaseContext(prov);
return(baHash);
}
public static IntPtr CreateHash(IntPtr prov, CalgHash algId, IntPtr key)
{
uint flags = 0;
IntPtr hash;
bool retVal = Crypto.CryptCreateHash(prov, (uint) algId, key, flags, out hash);
ErrCode ec = Error.HandleRetVal(retVal);
return hash;
}
public static IntPtr CreateHash(IntPtr prov, CalgHash algId)
{
IntPtr key = IntPtr.Zero; //non-keyed hash
return CreateHash(prov, algId, key);
}
public static byte[] ComputeHash(IntPtr prov, CalgHash algId, byte [] data)
{
IntPtr key = IntPtr.Zero;
return ComputeKeyedHash(prov, algId, data, key);
}
public static IntPtr CreateHash(IntPtr prov, CalgHash algId)
{
IntPtr key = IntPtr.Zero; //non-keyed hash
return(CreateHash(prov, algId, key));
}
public static byte [] ComputeHash(IntPtr prov, CalgHash algId, byte [] data)
{
IntPtr key = IntPtr.Zero;
return(ComputeKeyedHash(prov, algId, data, key));
}
