public void TimingTest( )
{
// Set up
var derivedKeyFactory = new Pbkdf2DerivedKeyFactory( 1000 );
int result = 0;
// Exercise
for ( int i = 0; i < 100; ++i )
{
var derived = derivedKeyFactory.DeriveKey( Encoding.UTF8.GetBytes( "abcd" + i ),
Encoding.UTF8.GetBytes( "1234" ), 1, 10 );
result += derived.Length;
}
// Verify
Console.WriteLine( @"result: {0}", result );
}
public void GeneratorUsesDerivedKeyFactoryAndMaterializerToDerivePasswordFromRequest( )
{
// Set up
IDerivedKeyFactory derivedKeyFactory = new Pbkdf2DerivedKeyFactory( 15000 );
IDerivedKeyFactory digestFactory = new Pbkdf2DerivedKeyFactory( 10000 );
PasswordMaterializer materializer = PasswordMaterializers.AlphaNumeric;
PasswordGenerator generator = new PasswordGenerator( derivedKeyFactory, digestFactory, materializer, 32 );
// Exercise
DerivedPassword derived = generator.Derive( new PasswordRequest( "abcd", "1234".ToSecureString( ), 3, default( Guid ) ) );
// Verify
string expectedPassword =
materializer.ToString( derivedKeyFactory.DeriveKey( Encoding.UTF8.GetBytes( "abcd" ), Encoding.UTF8.GetBytes( "1234" ),
3, materializer.BytesNeeded ) );
Assert.That( derived.Password, Is.EqualTo( expectedPassword ) );
}
public void GeneratorUsesDerivedKeyFactoryToCreateDigest( )
{
// Set up
IDerivedKeyFactory derivedKeyFactory = new Pbkdf2DerivedKeyFactory( 15000 );
IDerivedKeyFactory digestFactory = new Pbkdf2DerivedKeyFactory( 10000 );
PasswordMaterializer materializer = PasswordMaterializers.AlphaNumeric;
PasswordGenerator generator = new PasswordGenerator( derivedKeyFactory, digestFactory, materializer, 32 );
// Exercise
DerivedPassword derived =
generator.Derive( new PasswordRequest( "abcd", "1234".ToSecureString( ), 1, PasswordGenerators.LegacyFull ) );
// Verify
byte[ ] expectedHash = digestFactory.DeriveKey( PasswordGenerator.DigestSalt, Encoding.UTF8.GetBytes( derived.Password ),
1, 32 );
PasswordDigest expectedDigest = new PasswordDigest( "abcd", expectedHash, 1, PasswordGenerators.LegacyFull );
Assert.That( derived.Digest, Is.EqualTo( expectedDigest ) );
}
public void RegressionTest( )
{
// Set up
var derivedKeyFactory = new Pbkdf2DerivedKeyFactory( 1000 );
byte[ ] expectedBytes = new byte[ ]
{
0xab, 0x46, 0x96, 0x84, 0x67, 0x78, 0xfc, 0x90,
0x2a, 0x97, 0xab, 0xd7, 0x74, 0x93, 0x7c, 0x4a,
0x80, 0x6e, 0x88, 0xd6, 0x54, 0x39, 0x50, 0x0f,
0xf4, 0xd8, 0x56, 0x5d, 0x62, 0x1f, 0xbb, 0xe8
};
byte[ ] variableSalt = new byte[ ] { 0x19, 0x2a, 0x3b, 0x4c, 0x5d, 0x6e, 0x7f, 0x80 };
// Exercise
byte[ ] result = derivedKeyFactory.DeriveKey(
variableSalt,
Encoding.UTF8.GetBytes( "passw0rd" ),
0, 32 );
// Verify
Assert.That( result, Is.EquivalentTo( expectedBytes ) );
}
public void RegressionTestWithNonAsciiPassword( )
{
// Set up
var derivedKeyFactory = new Pbkdf2DerivedKeyFactory( 1000 );
byte[ ] expectedBytes = new byte[ ]
{
0x94, 0xeb, 0x82, 0xf8, 0x15, 0xee, 0x4c, 0xd6,
0x13, 0xe9, 0xb2, 0x1a, 0x35, 0xdd, 0x23, 0x87,
0x57, 0xdb, 0x57, 0x28, 0xf4, 0x34, 0x2c, 0xc6,
0xa1, 0xb2, 0x98, 0x90, 0x0c, 0x13, 0x58, 0xf4
};
byte[ ] variableSalt = new byte[ ] { 0x19, 0x2a, 0x3b, 0x4c, 0x5d, 0x6e, 0x7f, 0x80 };
// Exercise
byte[ ] result = derivedKeyFactory.DeriveKey(
variableSalt,
Encoding.UTF8.GetBytes( "pässw0rð" ),
0, 32 );
// Verify
Assert.That( result, Is.EquivalentTo( expectedBytes ) );
}