public void ShouldDeriveKey(ProviderType providerType)
{
// TODO: VipNet does not support this feature - https://infotecs.ru/forum/topic/10142-oshibka-pri-sozdanii-klyucha-shifrovaniya-na-osnove-dannyih-polzovatelya-cryptderivekey/
if (providerType.IsVipNet())
{
Assert.Ignore("VipNet does not support this feature");
}
// Given
var initKey = new Gost_28147_89_SymmetricAlgorithm(providerType);
// When
Gost_28147_89_SymmetricAlgorithmBase randomKey1;
Gost_28147_89_SymmetricAlgorithmBase randomKey2;
Gost_28147_89_SymmetricAlgorithmBase randomKey3;
using (var prf = new Gost_R3411_2012_256_PRF(initKey, Label, Seed))
{
randomKey1 = prf.DeriveKey();
randomKey2 = prf.DeriveKey();
randomKey3 = prf.DeriveKey();
}
// Then
Assert.IsNotNull(randomKey1);
Assert.IsNotNull(randomKey2);
Assert.IsNotNull(randomKey3);
AssertKeyIsValid(randomKey1);
AssertKeyIsValid(randomKey2);
AssertKeyIsValid(randomKey3);
AssertKeysAreNotEqual(randomKey1, randomKey2);
AssertKeysAreNotEqual(randomKey1, randomKey3);
AssertKeysAreNotEqual(randomKey2, randomKey3);
}
public void ShouldDeriveBytes(ProviderType providerType)
{
// Given
var initKey = new Gost_28147_89_SymmetricAlgorithm(providerType);
// When
byte[] randomBytes1;
byte[] randomBytes2;
byte[] randomBytes3;
using (var prf = new Gost_R3411_2012_256_PRF(initKey, Label, Seed))
{
randomBytes1 = prf.DeriveBytes();
randomBytes2 = prf.DeriveBytes();
randomBytes3 = prf.DeriveBytes();
}
// Then
Assert.IsNotNull(randomBytes1);
Assert.IsNotNull(randomBytes2);
Assert.IsNotNull(randomBytes3);
Assert.AreEqual(256, 8 * randomBytes1.Length);
Assert.AreEqual(256, 8 * randomBytes2.Length);
Assert.AreEqual(256, 8 * randomBytes3.Length);
CollectionAssert.AreNotEqual(randomBytes1, randomBytes2);
CollectionAssert.AreNotEqual(randomBytes1, randomBytes3);
CollectionAssert.AreNotEqual(randomBytes2, randomBytes3);
}