public void WhenAuthorizingAnExistingWrongMasterKey_ADifferentHmacShouldBeComputed()
{
// Given
var existingMasterKey = new MasterKey("Wrong Password", KnownSalt, KnownIterations, CreatePbkdf2());
// When
var existingAuthorization = new Authorization(existingMasterKey, KnownInitializationVector, CreateAes(), CreateHmacSha256());
// Then
existingAuthorization.Hmac.Should().NotBeEquivalentTo(KnownHmac);
}
public void WhenCreatingANewAuthorizationTwiceWithTheSameMasterKey_ADifferentHashShouldBeGeneratedBecauseTheInitializationVectorIsDifferent()
{
// Given
var newMasterKey = new MasterKey(KnownPassword, KnownIterations, CreatePbkdf2());
// When
var firstNewAuthorization = new Authorization(newMasterKey, CreateAes(), CreateHmacSha256());
var secondNewAuthorization = new Authorization(newMasterKey, CreateAes(), CreateHmacSha256());
// Then
firstNewAuthorization.Hmac.Should().NotBeEquivalentTo(secondNewAuthorization.Hmac);
}
public void WhenAuthorizingAnExistingCorrectMasterKey_TheCorrectHmacShouldBeComputer()
{
// Given
var existingMasterKey = new MasterKey(KnownPassword, KnownSalt, KnownIterations, CreatePbkdf2());
// When
var existingAuthorization = new Authorization(existingMasterKey, KnownInitializationVector, CreateAes(), CreateHmacSha256());
// Then
existingAuthorization.InitializationVector.Should().BeEquivalentTo(KnownInitializationVector);
existingAuthorization.Hmac.Should().BeEquivalentTo(KnownHmac);
}
public void WhenCreatingANewAuthorization_ItShouldBeCreated()
{
// Given
var newMasterKey = new MasterKey(KnownPassword, KnownIterations, CreatePbkdf2());
// When
var newAuthorization = new Authorization(newMasterKey, CreateAes(), CreateHmacSha256());
// Then
newAuthorization.InitializationVector.Length.Should().Be(Aes.BlockSizeInBits / 8);
newAuthorization.InitializationVector.Should().NotBeEmpty();
newAuthorization.Hmac.Length.Should().Be(HmacSha256.HmacSizeInBits / 8);
newAuthorization.Hmac.Should().NotBeEmpty();
}
public void WhenCreatingTwiceTheAuthorizationWithTheSameInitializationVector_ItShouldBeTheSame()
{
// Given
var newMasterKey = new MasterKey(KnownPassword, KnownIterations, CreatePbkdf2());
// When
var newAuthorization = new Authorization(newMasterKey, CreateAes(), CreateHmacSha256());
var existingAuthorization = new Authorization(newMasterKey, newAuthorization.InitializationVector,
CreateAes(), CreateHmacSha256());
// Then
newAuthorization.Hmac.Should().BeEquivalentTo(existingAuthorization.Hmac);
}