public PasswordGenerator( IDerivedKeyFactory derivedPasswordFactory, IDerivedKeyFactory digestFactory,
PasswordMaterializer materializer, int digestLength )
{
_derivedPasswordFactory = derivedPasswordFactory;
_digestFactory = digestFactory;
_materializer = materializer;
_digestLength = digestLength;
}
public void AlphabetNeeds9BytesWith48Symbols( )
{
// Set up
string symbols128 = Enumerable.Repeat( "0123456789ABCDEF", 3 ).Aggregate( ( l, r ) => l + r );
PasswordMaterializer materializer = new PasswordMaterializer( symbols128 );
// Exercise
// Verify
Assert.That( materializer.BytesNeeded, Is.EqualTo( 9 ) );
}
public void AlphabetNeeds8BytesWith16Symbols( )
{
// Set up
const string symbols16 = "0123456789ABCDEF";
PasswordMaterializer materializer = new PasswordMaterializer( symbols16 );
// Exercise
// Verify
Assert.That( materializer.BytesNeeded, Is.EqualTo( 8 ) );
}
public void TestConvertArrayToSymbols16Returns16Characters( )
{
// Setup
const string symbols16 = "0123456789ABCDEF";
PasswordMaterializer materializer = new PasswordMaterializer( symbols16 );
byte[ ] input = { 0xA1, 0x22, 0x44, 0x60, 0xE7, 0x01, 0x1A, 0x48 };
// Exercise
string symbols = materializer.ToString( input );
// Verify
Assert.That( symbols, Is.EqualTo( "1A2244067E10A184" ) );
}
public void TestConvertArrayToSymbols64Returns12Characters( )
{
// Setup
const string symbols64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-+";
PasswordMaterializer materializer = new PasswordMaterializer( symbols64 );
BaseConverter converter = new BaseConverter( 64 );
byte[ ] input = { 0xA1, 0x22, 0x44, 0x60, 0xE7, 0x01, 0x1A, 0x48, 0xCB };
byte[ ] convertedBytes = converter.ConvertBytesToDigits( input, 12 );
string expectedOutput = new string( convertedBytes.Select( b => symbols64[ b ] ).ToArray( ) );
// Exercise
string output = materializer.ToString( input );
// Verify
Assert.That( output, Is.EqualTo( expectedOutput ) );
}
private static PasswordGenerator Sha512Generator( PasswordMaterializer materializer )
{
return new PasswordGenerator( new Sha512DerivedKeyFactory( ( s, p ) => InternalSalt.Concat( p ).Concat( s ).ToArray( ) ),
new Sha512DerivedKeyFactory( ( s, p ) => s.Concat( p ).ToArray( ) ),
materializer, 64 );
}
private static PasswordGenerator Pbkdf2Generator( PasswordMaterializer materializer )
{
return new PasswordGenerator( new Pbkdf2DerivedKeyFactory( 1000 ), new Pbkdf2DerivedKeyFactory( 1000 ), materializer, 32 );
}