public void Rfc5869DeriveKeySpanOkmPotentiallyOverflowingValue()
{
byte[] ikm = new byte[20];
byte[] okm = new byte[8421505];
AssertExtensions.Throws <ArgumentException>(
"output",
() => HKDF.DeriveKey(HashAlgorithmName.SHA1, ikm, okm, Array.Empty <byte>(), Array.Empty <byte>()));
}
public void Rfc5869OkmMaxSizePotentiallyOverflowingValue()
{
byte[] prk = new byte[20];
byte[] okm = new byte[8421505];
AssertExtensions.Throws <ArgumentException>(
"output",
() => HKDF.Expand(HashAlgorithmName.SHA1, prk, okm, Array.Empty <byte>()));
}
public void Rfc5869OkmMaxSizePlusOne()
{
byte[] prk = new byte[20];
byte[] okm = new byte[20 * 255 + 1];
AssertExtensions.Throws <ArgumentException>(
"output",
() => HKDF.Expand(HashAlgorithmName.SHA1, prk, okm, Array.Empty <byte>()));
}
public void Rfc5869DeriveKeySpanOkmMaxSizePlusOne()
{
byte[] ikm = new byte[20];
byte[] okm = new byte[20 * 255 + 1];
AssertExtensions.Throws <ArgumentException>(
"output",
() => HKDF.DeriveKey(HashAlgorithmName.SHA1, ikm, okm, Array.Empty <byte>(), Array.Empty <byte>()));
}
public void testChainKeyDerivationV3()
{
byte[] seed =
{
0x8a, 0xb7, 0x2d, 0x6f, 0x4c,
0xc5, 0xac, 0x0d, 0x38, 0x7e,
0xaf, 0x46, 0x33, 0x78, 0xdd,
0xb2, 0x8e, 0xdd, 0x07, 0x38,
0x5b, 0x1c, 0xb0, 0x12, 0x50,
0xc7, 0x15, 0x98, 0x2e, 0x7a,
0xd4, 0x8f
};
byte[] messageKey =
{
/* 0x02*/
0xbf, 0x51, 0xe9, 0xd7,
0x5e, 0x0e, 0x31, 0x03, 0x10,
0x51, 0xf8, 0x2a, 0x24, 0x91,
0xff, 0xc0, 0x84, 0xfa, 0x29,
0x8b, 0x77, 0x93, 0xbd, 0x9d,
0xb6, 0x20, 0x05, 0x6f, 0xeb,
0xf4, 0x52, 0x17
};
byte[] macKey =
{
0xc6, 0xc7, 0x7d, 0x6a, 0x73,
0xa3, 0x54, 0x33, 0x7a, 0x56,
0x43, 0x5e, 0x34, 0x60, 0x7d,
0xfe, 0x48, 0xe3, 0xac, 0xe1,
0x4e, 0x77, 0x31, 0x4d, 0xc6,
0xab, 0xc1, 0x72, 0xe7, 0xa7,
0x03, 0x0b
};
byte[] nextChainKey =
{
0x28, 0xe8, 0xf8, 0xfe, 0xe5,
0x4b, 0x80, 0x1e, 0xef, 0x7c,
0x5c, 0xfb, 0x2f, 0x17, 0xf3,
0x2c, 0x7b, 0x33, 0x44, 0x85,
0xbb, 0xb7, 0x0f, 0xac, 0x6e,
0xc1, 0x03, 0x42, 0xa2, 0x46,
0xd1, 0x5d
};
ChainKey chainKey = new ChainKey(HKDF.createFor(3), seed, 0);
CollectionAssert.AreEqual(seed, chainKey.getKey());
CollectionAssert.AreEqual(messageKey, chainKey.getMessageKeys().getCipherKey());
CollectionAssert.AreEqual(macKey, chainKey.getMessageKeys().getMacKey());
CollectionAssert.AreEqual(nextChainKey, chainKey.getNextChainKey().getKey());
Assert.AreEqual <uint>(0, chainKey.getIndex());
Assert.AreEqual <uint>(0, chainKey.getMessageKeys().getCounter());
Assert.AreEqual <uint>(1, chainKey.getNextChainKey().getIndex());
Assert.AreEqual <uint>(1, chainKey.getNextChainKey().getMessageKeys().getCounter());
}
public void testChainKeyDerivationV3()
{
byte[] seed =
{
(byte)0x8a, (byte)0xb7, (byte)0x2d, (byte)0x6f, (byte)0x4c,
(byte)0xc5, (byte)0xac, (byte)0x0d, (byte)0x38, (byte)0x7e,
(byte)0xaf, (byte)0x46, (byte)0x33, (byte)0x78, (byte)0xdd,
(byte)0xb2, (byte)0x8e, (byte)0xdd, (byte)0x07, (byte)0x38,
(byte)0x5b, (byte)0x1c, (byte)0xb0, (byte)0x12, (byte)0x50,
(byte)0xc7, (byte)0x15, (byte)0x98, (byte)0x2e, (byte)0x7a,
(byte)0xd4, (byte)0x8f
};
byte[] messageKey =
{
/* (byte) 0x02*/
(byte)0xbf, (byte)0x51, (byte)0xe9, (byte)0xd7,
(byte)0x5e, (byte)0x0e, (byte)0x31, (byte)0x03,(byte)0x10,
(byte)0x51, (byte)0xf8, (byte)0x2a, (byte)0x24,(byte)0x91,
(byte)0xff, (byte)0xc0, (byte)0x84, (byte)0xfa,(byte)0x29,
(byte)0x8b, (byte)0x77, (byte)0x93, (byte)0xbd,(byte)0x9d,
(byte)0xb6, (byte)0x20, (byte)0x05, (byte)0x6f,(byte)0xeb,
(byte)0xf4, (byte)0x52, (byte)0x17
};
byte[] macKey =
{
(byte)0xc6, (byte)0xc7, (byte)0x7d, (byte)0x6a, (byte)0x73,
(byte)0xa3, (byte)0x54, (byte)0x33, (byte)0x7a, (byte)0x56,
(byte)0x43, (byte)0x5e, (byte)0x34, (byte)0x60, (byte)0x7d,
(byte)0xfe, (byte)0x48, (byte)0xe3, (byte)0xac, (byte)0xe1,
(byte)0x4e, (byte)0x77, (byte)0x31, (byte)0x4d, (byte)0xc6,
(byte)0xab, (byte)0xc1, (byte)0x72, (byte)0xe7, (byte)0xa7,
(byte)0x03, (byte)0x0b
};
byte[] nextChainKey =
{
(byte)0x28, (byte)0xe8, (byte)0xf8, (byte)0xfe, (byte)0xe5,
(byte)0x4b, (byte)0x80, (byte)0x1e, (byte)0xef, (byte)0x7c,
(byte)0x5c, (byte)0xfb, (byte)0x2f, (byte)0x17, (byte)0xf3,
(byte)0x2c, (byte)0x7b, (byte)0x33, (byte)0x44, (byte)0x85,
(byte)0xbb, (byte)0xb7, (byte)0x0f, (byte)0xac, (byte)0x6e,
(byte)0xc1, (byte)0x03, (byte)0x42, (byte)0xa2, (byte)0x46,
(byte)0xd1, (byte)0x5d
};
ChainKey chainKey = new ChainKey(HKDF.createFor(3), seed, 0);
Assert.IsTrue(StructuralComparisons.StructuralEqualityComparer.Equals(chainKey.getKey(), seed));
Assert.IsTrue(StructuralComparisons.StructuralEqualityComparer.Equals(chainKey.getMessageKeys().getCipherKey(), messageKey));
Assert.IsTrue(StructuralComparisons.StructuralEqualityComparer.Equals(chainKey.getMessageKeys().getMacKey(), macKey));
Assert.IsTrue(StructuralComparisons.StructuralEqualityComparer.Equals(chainKey.getNextChainKey().getKey(), nextChainKey));
Assert.IsTrue(chainKey.getIndex() == 0);
Assert.IsTrue(chainKey.getMessageKeys().getCounter() == 0);
Assert.IsTrue(chainKey.getNextChainKey().getIndex() == 1);
Assert.IsTrue(chainKey.getNextChainKey().getMessageKeys().getCounter() == 1);
}
public static byte[] KeyExpansion(int expandToLength, byte[] keyToExpand, string additionalData = "")
{
HashAlgorithmName algorithm = HashAlgorithmName.SHA256;
using (var hkdf = new HKDF(HMACFactories.HMACSHA256, keyToExpand, additionalData.ToBytes()))
{
return(hkdf.GetBytes(expandToLength));
}
}
public static byte[] KeyDerivation(int keyLengthInBytes, byte[] keyToExpand, int numberOfKeysToDerive)
{
HashAlgorithmName algorithm = HashAlgorithmName.SHA256;
using (var hkdf = new HKDF(HMACFactories.HMACSHA256, keyToExpand))
{
return(hkdf.GetBytes(keyLengthInBytes * numberOfKeysToDerive));
}
}
void DeriveSubKey(byte[] materKey, byte[] salt, byte[] info, byte[] subkeyBuffer, int subKeyLength)
{
//Throw.IfNull(() => materKey);
//Throw.IfNull(() => salt);
//Throw.IfNull(() => info);
var k = HKDF.DeriveKey(HashAlgorithmName.SHA1, materKey, subKeyLength, salt, info);
Buffer.BlockCopy(k, 0, subkeyBuffer, 0, k.Length);
}
public void NET()
{
Span <byte> output = stackalloc byte[82];
for (var i = 0; i < Max; ++i)
{
HKDF.DeriveKey(HashAlgorithmName.SHA256, _ikm, output, _salt, _info);
}
}
public void Rfc5869ExpandOutputLengthZero()
{
byte[] prk = new byte[20];
byte[] okm = new byte[0];
AssertExtensions.Throws <ArgumentException>(
"output",
() => HKDF.Expand(HashAlgorithmName.SHA1, prk, okm, Array.Empty <byte>()));
}
public void testChainKeyDerivationV2()
{
byte[] seed =
{
0x8a, 0xb7, 0x2d, 0x6f, 0x4c,
0xc5, 0xac, 0x0d, 0x38, 0x7e,
0xaf, 0x46, 0x33, 0x78, 0xdd,
0xb2, 0x8e, 0xdd, 0x07, 0x38,
0x5b, 0x1c, 0xb0, 0x12, 0x50,
0xc7, 0x15, 0x98, 0x2e, 0x7a,
0xd4, 0x8f
};
byte[] messageKey =
{
0x02, 0xa9, 0xaa, 0x6c, 0x7d,
0xbd, 0x64, 0xf9, 0xd3, 0xaa,
0x92, 0xf9, 0x2a, 0x27, 0x7b,
0xf5, 0x46, 0x09, 0xda, 0xdf,
0x0b, 0x00, 0x82, 0x8a, 0xcf,
0xc6, 0x1e, 0x3c, 0x72, 0x4b,
0x84, 0xa7
};
byte[] macKey =
{
0xbf, 0xbe, 0x5e, 0xfb, 0x60,
0x30, 0x30, 0x52, 0x67, 0x42,
0xe3, 0xee, 0x89, 0xc7, 0x02,
0x4e, 0x88, 0x4e, 0x44, 0x0f,
0x1f, 0xf3, 0x76, 0xbb, 0x23,
0x17, 0xb2, 0xd6, 0x4d, 0xeb,
0x7c, 0x83
};
byte[] nextChainKey =
{
0x28, 0xe8, 0xf8, 0xfe, 0xe5,
0x4b, 0x80, 0x1e, 0xef, 0x7c,
0x5c, 0xfb, 0x2f, 0x17, 0xf3,
0x2c, 0x7b, 0x33, 0x44, 0x85,
0xbb, 0xb7, 0x0f, 0xac, 0x6e,
0xc1, 0x03, 0x42, 0xa2, 0x46,
0xd1, 0x5d
};
ChainKey chainKey = new ChainKey(HKDF.createFor(2), seed, 0);
Assert.AreEqual(seed, chainKey.getKey());
CollectionAssert.AreEqual(messageKey, chainKey.getMessageKeys().getCipherKey());
CollectionAssert.AreEqual(macKey, chainKey.getMessageKeys().getMacKey());
CollectionAssert.AreEqual(nextChainKey, chainKey.getNextChainKey().getKey());
Assert.AreEqual <uint>(0, chainKey.getIndex());
Assert.AreEqual <uint>(0, chainKey.getMessageKeys().getCounter());
Assert.AreEqual <uint>(1, chainKey.getNextChainKey().getIndex());
Assert.AreEqual <uint>(1, chainKey.getNextChainKey().getMessageKeys().getCounter());
}
public void Rfc5869DeriveKeyOutputLengthZero()
{
byte[] ikm = new byte[20];
byte[] okm = new byte[0];
AssertExtensions.Throws <ArgumentException>(
"output",
() => HKDF.DeriveKey(HashAlgorithmName.SHA1, ikm, okm, Array.Empty <byte>(), Array.Empty <byte>()));
}
private static DerivedKeys calculateDerivedKeys(uint sessionVersion, byte[] masterSecret)
{
HKDF kdf = HKDF.createFor(sessionVersion);
byte[] derivedSecretBytes = kdf.deriveSecrets(masterSecret, Encoding.UTF8.GetBytes("WhisperText"), 64);
byte[][] derivedSecrets = ByteUtil.split(derivedSecretBytes, 32, 32);
return(new DerivedKeys(new RootKey(kdf, derivedSecrets[0]),
new ChainKey(kdf, derivedSecrets[1], 0)));
}
public virtual void InitCipher(byte[] salt, bool isEncrypt)
{
this.salt = new byte[saltLen];
Array.Copy(salt, this.salt, saltLen);
HKDF.DeriveKey(HashAlgorithmName.SHA1, masterKey, sessionKey, salt, InfoBytes);
this.Log().Debug($"salt {instanceId}", salt, saltLen);
this.Log().Debug($"sessionkey {instanceId}", sessionKey, keyLen);
}
private (byte[], byte[]) DeriveKeyAndNonce(byte[] salt, byte[] authSecret, ECPublicKeyParameters senderPublicKey, ECPublicKeyParameters receiverPublicKey, ECPrivateKeyParameters receiverPrivateKey)
{
var(secret, context) = ExtractSecretAndContext(senderPublicKey, receiverPublicKey, receiverPrivateKey);
secret = HKDF.GetBytes(authSecret, secret, authInfoParameter, SHA_256_LENGTH);
byte[] keyInfo = ByteArray.Concat(keyInfoParameter, context);
byte[] nonceInfo = ByteArray.Concat(nonceInfoParameter, context);
byte[] prk = HKDF.Extract(salt, secret);
return(HKDF.Expand(prk, keyInfo, KEY_LENGTH), HKDF.Expand(prk, nonceInfo, NONCE_LENGTH));
}
//deriveHawkCredentials
public static byte[] DeriveHawkCredentials(string tokenHex, string context)
{
byte[] token = BinaryHelper.FromHexString(tokenHex);
byte[] info = BinaryHelper.Kw(context);
using (var hmac = new HMACSHA256())
{
HKDF hkdf = new HKDF(hmac, token);
byte[] result = hkdf.Expand(info, 3 * 32);
return(result.Skip(64).ToArray());
}
}
public static SyncKeys DeriveKeys(byte[] kB)
{
byte[] info = BinaryHelper.Kw("oldsync");
HMAC hmac = new HMAC("HMACSHA256");
HKDF hkdf = new HKDF(hmac, kB);
byte[] result = hkdf.Expand(info, 2 * 32);
return(new SyncKeys()
{
EncKey = result.Take(32).ToArray(), HmacKey = result.Skip(32).ToArray()
});
}
private static BundleKeys DeriveBundleKeys(byte[] key, string keyInfo)
{
byte[] info = BinaryHelper.Kw(keyInfo);
using (var hmac = new HMACSHA256())
{
HKDF hkdf = new HKDF(hmac, key);
byte[] result = hkdf.Expand(info, 3 * 32);
byte[] hmacKey = result.Take(32).ToArray();
byte[] xorKey = result.Skip(32).ToArray();
return(new BundleKeys(hmacKey, xorKey));
}
}
public ChainKey getReceiverChainKey(ECPublicKey senderEphemeral)
{
Pair <Chain, uint> receiverChainAndIndex = getReceiverChain(senderEphemeral);
Chain receiverChain = receiverChainAndIndex.first();
if (receiverChain == null)
{
return(null);
}
else
{
return(new ChainKey(HKDF.createFor(getSessionVersion()),
receiverChain.ChainKey.Key.ToByteArray(),
receiverChain.ChainKey.Index));
}
}
[InlineData(10, 20)] // Both offset, output +10 over salt
public void Rfc5869ExtractOverlapsPrkOverSalt(int saltOffset, int outputOffset)
{
ReadOnlySpan <byte> ikm = "0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b".HexToByteArray();
ReadOnlySpan <byte> salt = "000102030405060708090a0b0c".HexToByteArray();
byte[] expectedPrk = "077709362c2e32df0ddc3f0dc47bba6390b6c73bb50f9c3122ec844ad7c2b3e5".HexToByteArray();
int length = Math.Max(ikm.Length, expectedPrk.Length) + Math.Max(saltOffset, outputOffset);
Span <byte> buffer = new byte[length];
Span <byte> saltBuffer = buffer.Slice(saltOffset, salt.Length);
Span <byte> outputBuffer = buffer.Slice(outputOffset, expectedPrk.Length);
salt.CopyTo(saltBuffer);
HKDF.Extract(HashAlgorithmName.SHA256, ikm, saltBuffer, outputBuffer);
Assert.Equal(expectedPrk, outputBuffer.ToArray());
}
public void testVectorV2()
{
byte[] ikm =
{
0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
0x0b, 0x0b, 0x0b, 0x0b, 0x0b,
0x0b, 0x0b
};
byte[] salt =
{
0x00, 0x01, 0x02, 0x03, 0x04,
0x05, 0x06, 0x07, 0x08, 0x09,
0x0a, 0x0b, 0x0c
};
byte[] info =
{
0xf0, 0xf1, 0xf2, 0xf3, 0xf4,
0xf5, 0xf6, 0xf7, 0xf8, 0xf9
};
byte[] okm =
{
0x6e, 0xc2, 0x55, 0x6d, 0x5d,
0x7b, 0x1d, 0x81, 0xde, 0xe4,
0x22, 0x2a, 0xd7, 0x48, 0x36,
0x95, 0xdd, 0xc9, 0x8f, 0x4f,
0x5f, 0xab, 0xc0, 0xe0, 0x20,
0x5d, 0xc2, 0xef, 0x87, 0x52,
0xd4, 0x1e, 0x04, 0xe2, 0xe2,
0x11, 0x01, 0xc6, 0x8f, 0xf0,
0x93, 0x94, 0xb8, 0xad, 0x0b,
0xdc, 0xb9, 0x60, 0x9c, 0xd4,
0xee, 0x82, 0xac, 0x13, 0x19,
0x9b, 0x4a, 0xa9, 0xfd, 0xa8,
0x99, 0xda, 0xeb, 0xec
};
byte[] actualOutput = HKDF.createFor(2).deriveSecrets(ikm, salt, info, 64);
CollectionAssert.AreEqual(okm, actualOutput);
}
private uint[] SecureExpand(byte[] Key)
{
// expanded key size
int keySize = 4 * (m_rndCount + 1);
// hkdf return array
int keyBytes = keySize * 4;
byte[] rawKey = new byte[keyBytes];
HKDF gen = new HKDF(m_kdfExtractor);
// change 1.2: use extract only on an oversized key
if (Key.Length > m_kdfExtractor.BlockSize)
{
// seperate salt and key
m_kdfKeySize = m_kdfExtractor.BlockSize;
byte[] kdfKey = new byte[m_kdfKeySize];
Buffer.BlockCopy(Key, 0, kdfKey, 0, m_kdfKeySize);
int saltSize = Key.Length - m_kdfKeySize;
byte[] kdfSalt = new byte[saltSize];
Buffer.BlockCopy(Key, m_kdfKeySize, kdfSalt, 0, saltSize);
// info can be null
gen.Initialize(kdfKey, kdfSalt, m_kdfInfo);
}
else
{
if (m_kdfInfo.Length != 0)
{
gen.Info = m_kdfInfo;
}
gen.Initialize(Key);
}
gen.Generate(rawKey);
gen.Dispose();
// initialize working key
uint[] expKey = new uint[keySize];
// copy bytes to working key
Buffer.BlockCopy(rawKey, 0, expKey, 0, keyBytes);
return(expKey);
}
public void Test_Case_6()
{
using (var hmac = new HMACSHA1())
{
byte[] ikm = Generate("0x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");
byte[] salt = Generate(string.Empty);
byte[] info = Generate(string.Empty);
int L = 42;
byte[] OKM = Generate(@"0x0ac1af7002b3d761d1e55298da9d0506
b9ae52057220a306e07b6b87e8df21d0
ea00033de03984d34918");
var hkdf = new HKDF(hmac, ikm, salt);
var okm = hkdf.Expand(info, L);
Assert.AreEqual(L, okm.Length);
Assert.AreEqual(Convert.ToBase64String(OKM), Convert.ToBase64String(okm));
}
}
public void Rfc5869ExtractPrkTooLong()
{
byte[] prk = new byte[24];
for (int i = 0; i < 4; i++)
{
prk[20 + i] = (byte)(i + 5);
}
byte[] ikm = new byte[20];
byte[] salt = new byte[20];
Assert.Equal(20, HKDF.Extract(HashAlgorithmName.SHA1, ikm, salt, prk));
Assert.Equal("A3CBF4A40F51A53E046F07397E52DF9286AE93A2", prk.AsSpan(0, 20).ByteArrayToHex());
for (int i = 0; i < 4; i++)
{
// ensure we didn't modify anything further
Assert.Equal((byte)(i + 5), prk[20 + i]);
}
}
public void Test_Case_7()
{
using (var hmac = new HMACSHA1())
{
byte[] ikm = Generate("0x0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c");
byte[] salt = null;
byte[] info = Generate(string.Empty);
int L = 42;
byte[] OKM = Generate(@"0x2c91117204d745f3500d636a62f64f0a
b3bae548aa53d423b0d1f27ebba6f5e5
673a081d70cce7acfc48");
var hkdf = new HKDF(hmac, ikm, salt);
var okm = hkdf.Expand(info, L);
Assert.AreEqual(L, okm.Length);
Assert.AreEqual(Convert.ToBase64String(OKM), Convert.ToBase64String(okm));
}
}
public void Test_Case_4()
{
using (var hmac = new HMACSHA1())
{
byte[] ikm = Generate("0x0b0b0b0b0b0b0b0b0b0b0b");
byte[] salt = Generate("0x000102030405060708090a0b0c");
byte[] info = Generate("0xf0f1f2f3f4f5f6f7f8f9");
int L = 42;
byte[] OKM = Generate(@"0x085a01ea1b10f36933068b56efa5ad81
a4f14b822f5b091568a9cdd4f155fda2
c22e422478d305f3f896");
var hkdf = new HKDF(hmac, ikm, salt);
var okm = hkdf.Expand(info, L);
Assert.AreEqual(L, okm.Length);
Assert.AreEqual(Convert.ToBase64String(OKM), Convert.ToBase64String(okm));
}
}
public void Test_Case_1()
{
using (var hmac = new HMACSHA256())
{
byte[] ikm = Generate("0x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");
byte[] salt = Generate("0x000102030405060708090a0b0c");
byte[] info = Generate("0xf0f1f2f3f4f5f6f7f8f9");
int L = 42;
byte[] OKM = Generate(@"0x3cb25f25faacd57a90434f64d0362f2a
2d2d0a90cf1a5a4c5db02d56ecc4c5bf
34007208d5b887185865");
var hkdf = new HKDF(hmac, ikm, salt);
var okm = hkdf.Expand(info, L);
Assert.AreEqual(L, okm.Length);
Assert.AreEqual(Convert.ToBase64String(OKM), Convert.ToBase64String(okm));
}
}
public Credentials(string email, string password)
{
Email = email;
using (var hmac = new HMACSHA256())
{
Pbkdf2 pbkdf2 = new Pbkdf2(hmac, Encoding.UTF8.GetBytes(password), BinaryHelper.Kwe("quickStretch", email), 1000);
QuickStretchedPW = pbkdf2.GetBytes(32);
HKDF hkdf = new HKDF(hmac, QuickStretchedPW);
AuthPW = hkdf.Expand(BinaryHelper.Kw("authPW"), 32);
UnwrapBKey = hkdf.Expand(BinaryHelper.Kw("unwrapBkey"), 32);
}
using (SHA256 sha256 = new SHA256())
{
byte[] hash = sha256.ComputeHash(UnwrapBKey);
SyncClientState = BinaryHelper.ToHexString(hash.Take(16).ToArray());
}
}
public void Test_Case_3()
{
using (var hmac = new HMACSHA256())
{
byte[] ikm = Generate("0x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");
byte[] salt = Generate(string.Empty);
byte[] info = Generate(string.Empty);
int L = 42;
byte[] OKM = Generate(@"0x8da4e775a563c18f715f802a063c5a31
b8a11f5c5ee1879ec3454e5f3c738d2d
9d201395faa4b61a96c8");
var hkdf = new HKDF(hmac, ikm, salt);
var okm = hkdf.Expand(info, L);
Assert.AreEqual(L, okm.Length);
Assert.AreEqual(Convert.ToBase64String(OKM), Convert.ToBase64String(okm));
}
}
public void Test_Case_1()
{
using (var hmac = new HMACSHA256())
{
byte[] ikm = Generate("0x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");
byte[] salt = Generate("0x000102030405060708090a0b0c");
byte[] info = Generate("0xf0f1f2f3f4f5f6f7f8f9");
int L = 42;
byte[] OKM = Generate(@"0x3cb25f25faacd57a90434f64d0362f2a
2d2d0a90cf1a5a4c5db02d56ecc4c5bf
34007208d5b887185865");
var hkdf = new HKDF(hmac, ikm, salt);
var okm = hkdf.Expand(info, L);
Assert.AreEqual(L, okm.Length);
Assert.AreEqual(Convert.ToBase64String(OKM), Convert.ToBase64String(okm));
}
}
public void Test_Case_7()
{
using (var hmac = new HMACSHA1())
{
byte[] ikm = Generate("0x0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c0c");
byte[] salt = null;
byte[] info = Generate(string.Empty);
int L = 42;
byte[] OKM = Generate(@"0x2c91117204d745f3500d636a62f64f0a
b3bae548aa53d423b0d1f27ebba6f5e5
673a081d70cce7acfc48");
var hkdf = new HKDF(hmac, ikm, salt);
var okm = hkdf.Expand(info, L);
Assert.AreEqual(L, okm.Length);
Assert.AreEqual(Convert.ToBase64String(OKM), Convert.ToBase64String(okm));
}
}
public void HDKF_Testcase6()
{
using (var hkdf = new HKDF(HMACFactories.HMACSHA1,
ikm: Enumerable.Repeat<byte>(0x0b, 22).ToArray(),
salt: new byte[] { },
context: new byte[] { }))
{
var result = hkdf.GetBytes(countBytes: 42);
var expected = "0ac1af7002b3d761d1e55298da9d0506b9ae52057220a306e07b6b87e8df21d0ea00033de03984d34918".FromBase16();
Assert.IsTrue(Enumerable.SequenceEqual(result, expected)); // "expected" is OKM in the document
}
}//6
public void HDKF_Testcase7()
{
using (var hkdf = new HKDF(HMACFactories.HMACSHA1,
ikm: Enumerable.Repeat<byte>(0x0c, 22).ToArray(),
salt: null,
context: new byte[] { }))
{
var result = hkdf.GetBytes(countBytes: 42);
var expected = "2c91117204d745f3500d636a62f64f0ab3bae548aa53d423b0d1f27ebba6f5e5673a081d70cce7acfc48".FromBase16();
Assert.IsTrue(Enumerable.SequenceEqual(result, expected)); // "expected" is OKM in the document
}
}//7
public void HDKF_Testcase4()
{
using (var hkdf = new HKDF(HMACFactories.HMACSHA1,
ikm: Enumerable.Repeat<byte>(0x0b, 11).ToArray(),
salt: Enumerable.Range(0x00, 13).Select(i => (byte)i).ToArray(),
context: Enumerable.Range(0xf0, 10).Select(i => (byte)i).ToArray()))
{
var result = hkdf.GetBytes(countBytes: 42);
var expected = "085a01ea1b10f36933068b56efa5ad81a4f14b822f5b091568a9cdd4f155fda2c22e422478d305f3f896".FromBase16();
Assert.IsTrue(Enumerable.SequenceEqual(result, expected)); // "expected" is OKM in the document
}
}//4
public void HDKF_Testcase5()
{
using (var hkdf = new HKDF(HMACFactories.HMACSHA1,
ikm: Enumerable.Range(0x00, 80).Select(i => (byte)i).ToArray(),
salt: Enumerable.Range(0x60, 80).Select(i => (byte)i).ToArray(),
context: Enumerable.Range(0xb0, 80).Select(i => (byte)i).ToArray()))
{
var result = hkdf.GetBytes(countBytes: 82);
var expected = "0bd770a74d1160f7c9f12cd5912a06ebff6adcae899d92191fe4305673ba2ffe8fa3f1a4e5ad79f3f334b3b202b2173c486ea37ce3d397ed034c7f9dfeb15c5e927336d0441f4c4300e2cff0d0900b52d3b4".FromBase16();
Assert.IsTrue(Enumerable.SequenceEqual(result, expected)); // "expected" is OKM in the document
}
}//5
public void HDKF_Testcase2()
{
using (var hkdf = new HKDF(HMACFactories.HMACSHA256,
ikm: Enumerable.Range(0x00, 80).Select(i => (byte)i).ToArray(),
salt: Enumerable.Range(0x60, 80).Select(i => (byte)i).ToArray(),
context: Enumerable.Range(0xb0, 80).Select(i => (byte)i).ToArray()))
{
var result = hkdf.GetBytes(countBytes: 82);
var expected = "b11e398dc80327a1c8e7f78c596a49344f012eda2d4efad8a050cc4c19afa97c59045a99cac7827271cb41c65e590e09da3275600c2f09b8367793a9aca3db71cc30c58179ec3e87c14c01d5c1f3434f1d87".FromBase16();
Assert.IsTrue(Enumerable.SequenceEqual(result, expected)); // "expected" is OKM in the document
}
}//2
public void HDKF_Testcase3()
{
using (var hkdf = new HKDF(HMACFactories.HMACSHA256,
ikm: Enumerable.Repeat<byte>(0x0b, 22).ToArray(),
salt: new byte[] { },
context: new byte[] { }))
{
var result = hkdf.GetBytes(countBytes: 42);
var expected = "8da4e775a563c18f715f802a063c5a31b8a11f5c5ee1879ec3454e5f3c738d2d9d201395faa4b61a96c8".FromBase16();
Assert.IsTrue(Enumerable.SequenceEqual(result, expected)); // "expected" is OKM in the document
}
}//3
public void HDKF_Testcase1()
{
using (var hkdf = new HKDF(HMACFactories.HMACSHA256,
ikm: Enumerable.Repeat<byte>(0x0b, 22).ToArray(),
salt: Enumerable.Range(0, 13).Select(i => (byte)i).ToArray(),
context: Enumerable.Range(0xf0, 10).Select(i => (byte)i).ToArray()))
{
var result = hkdf.GetBytes(countBytes: 42);
var expected = "3cb25f25faacd57a90434f64d0362f2a2d2d0a90cf1a5a4c5db02d56ecc4c5bf34007208d5b887185865".FromBase16();
Assert.IsTrue(Enumerable.SequenceEqual(result, expected)); // "expected" is OKM in the document
}
}//1
public void Test_Case_4()
{
using (var hmac = new HMACSHA1())
{
byte[] ikm = Generate("0x0b0b0b0b0b0b0b0b0b0b0b");
byte[] salt = Generate("0x000102030405060708090a0b0c");
byte[] info = Generate("0xf0f1f2f3f4f5f6f7f8f9");
int L = 42;
byte[] OKM = Generate(@"0x085a01ea1b10f36933068b56efa5ad81
a4f14b822f5b091568a9cdd4f155fda2
c22e422478d305f3f896");
var hkdf = new HKDF(hmac, ikm, salt);
var okm = hkdf.Expand(info, L);
Assert.AreEqual(L, okm.Length);
Assert.AreEqual(Convert.ToBase64String(OKM), Convert.ToBase64String(okm));
}
}
public void Test_Case_6()
{
using (var hmac = new HMACSHA1())
{
byte[] ikm = Generate("0x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");
byte[] salt = Generate(string.Empty);
byte[] info = Generate(string.Empty);
int L = 42;
byte[] OKM = Generate(@"0x0ac1af7002b3d761d1e55298da9d0506
b9ae52057220a306e07b6b87e8df21d0
ea00033de03984d34918");
var hkdf = new HKDF(hmac, ikm, salt);
var okm = hkdf.Expand(info, L);
Assert.AreEqual(L, okm.Length);
Assert.AreEqual(Convert.ToBase64String(OKM), Convert.ToBase64String(okm));
}
}
public void Test_Case_2()
{
using (var hmac = new HMACSHA256())
{
byte[] ikm = Generate(@"0x000102030405060708090a0b0c0d0e0f
101112131415161718191a1b1c1d1e1f
202122232425262728292a2b2c2d2e2f
303132333435363738393a3b3c3d3e3f
404142434445464748494a4b4c4d4e4f");
byte[] salt = Generate(@"0x606162636465666768696a6b6c6d6e6f
707172737475767778797a7b7c7d7e7f
808182838485868788898a8b8c8d8e8f
909192939495969798999a9b9c9d9e9f
a0a1a2a3a4a5a6a7a8a9aaabacadaeaf");
byte[] info = Generate(@"0xb0b1b2b3b4b5b6b7b8b9babbbcbdbebf
c0c1c2c3c4c5c6c7c8c9cacbcccdcecf
d0d1d2d3d4d5d6d7d8d9dadbdcdddedf
e0e1e2e3e4e5e6e7e8e9eaebecedeeef
f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff");
int L = 82;
byte[] OKM = Generate(@"0xb11e398dc80327a1c8e7f78c596a4934
4f012eda2d4efad8a050cc4c19afa97c
59045a99cac7827271cb41c65e590e09
da3275600c2f09b8367793a9aca3db71
cc30c58179ec3e87c14c01d5c1f3434f
1d87");
var hkdf = new HKDF(hmac, ikm, salt);
var okm = hkdf.Expand(info, L);
Assert.AreEqual(L, okm.Length);
Assert.AreEqual(Convert.ToBase64String(OKM), Convert.ToBase64String(okm));
}
}
public void Test_Case_5()
{
using (var hmac = new HMACSHA1())
{
byte[] ikm = Generate(@"0x000102030405060708090a0b0c0d0e0f
101112131415161718191a1b1c1d1e1f
202122232425262728292a2b2c2d2e2f
303132333435363738393a3b3c3d3e3f
404142434445464748494a4b4c4d4e4f");
byte[] salt = Generate(@"0x606162636465666768696a6b6c6d6e6f
707172737475767778797a7b7c7d7e7f
808182838485868788898a8b8c8d8e8f
909192939495969798999a9b9c9d9e9f
a0a1a2a3a4a5a6a7a8a9aaabacadaeaf");
byte[] info = Generate(@"0xb0b1b2b3b4b5b6b7b8b9babbbcbdbebf
c0c1c2c3c4c5c6c7c8c9cacbcccdcecf
d0d1d2d3d4d5d6d7d8d9dadbdcdddedf
e0e1e2e3e4e5e6e7e8e9eaebecedeeef
f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff");
int L = 82;
byte[] OKM = Generate(@"0x0bd770a74d1160f7c9f12cd5912a06eb
ff6adcae899d92191fe4305673ba2ffe
8fa3f1a4e5ad79f3f334b3b202b2173c
486ea37ce3d397ed034c7f9dfeb15c5e
927336d0441f4c4300e2cff0d0900b52
d3b4");
var hkdf = new HKDF(hmac, ikm, salt);
var okm = hkdf.Expand(info, L);
Assert.AreEqual(L, okm.Length);
Assert.AreEqual(Convert.ToBase64String(OKM), Convert.ToBase64String(okm));
}
}
public void Test_Case_3()
{
using (var hmac = new HMACSHA256())
{
byte[] ikm = Generate("0x0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b");
byte[] salt = Generate(string.Empty);
byte[] info = Generate(string.Empty);
int L = 42;
byte[] OKM = Generate(@"0x8da4e775a563c18f715f802a063c5a31
b8a11f5c5ee1879ec3454e5f3c738d2d
9d201395faa4b61a96c8");
var hkdf = new HKDF(hmac, ikm, salt);
var okm = hkdf.Expand(info, L);
Assert.AreEqual(L, okm.Length);
Assert.AreEqual(Convert.ToBase64String(OKM), Convert.ToBase64String(okm));
}
}
