public ElGamalManaged()
{
// create the key struct
o_key_struct = new ElGamalKeyStruct();
// set all of the big integers to zero
o_key_struct.P = new BigInteger(0);
o_key_struct.G = new BigInteger(0);
o_key_struct.Y = new BigInteger(0);
o_key_struct.X = new BigInteger(0);
// set the default key size value
KeySizeValue = 1024;
// set the range of legal keys
LegalKeySizesValue = new KeySizes[] { new KeySizes(384, 1088, 8) };
}
private static int GetSecondMin(KeySizes[] keySizes)
{
int secondMin = int.MaxValue;
int min = secondMin;
foreach (var keySize in keySizes)
{
int localMin = keySize.MinSize;
if (localMin < min)
{
secondMin = min;
min = localMin;
}
else if (localMin < secondMin)
{
secondMin = localMin;
}
if (keySize.MaxSize != keySize.MinSize)
{
int secondLocal = localMin + keySize.SkipSize;
if (secondLocal < secondMin)
{
secondMin = secondLocal;
}
}
}
return secondMin;
}
public DSACryptoServiceProvider (int dwKeySize, CspParameters parameters)
{
LegalKeySizesValue = new KeySizes [1];
LegalKeySizesValue [0] = new KeySizes (512, 1024, 64);
// will throw an exception is key size isn't supported
KeySize = dwKeySize;
dsa = new DSAManaged (dwKeySize);
dsa.KeyGenerated += new DSAManaged.KeyGeneratedEventHandler (OnKeyGenerated);
persistKey = (parameters != null);
if (parameters == null) {
parameters = new CspParameters (PROV_DSS_DH);
if (useMachineKeyStore)
parameters.Flags |= CspProviderFlags.UseMachineKeyStore;
store = new KeyPairPersistence (parameters);
// no need to load - it cannot exists
}
else {
store = new KeyPairPersistence (parameters);
store.Load ();
if (store.KeyValue != null) {
persisted = true;
this.FromXmlString (store.KeyValue);
}
}
}
private static bool IsLegalSize(int size, KeySizes[] legalSizes)
{
for (int i = 0; i < legalSizes.Length; i++)
{
KeySizes currentSizes = legalSizes[i];
// If a cipher has only one valid key size, MinSize == MaxSize and SkipSize will be 0
if (currentSizes.SkipSize == 0)
{
if (currentSizes.MinSize == size)
return true;
}
else if (size >= currentSizes.MinSize && size <= currentSizes.MaxSize)
{
// If the number is in range, check to see if it's a legal increment above MinSize
int delta = size - currentSizes.MinSize;
// While it would be unusual to see KeySizes { 10, 20, 5 } and { 11, 14, 1 }, it could happen.
// So don't return false just because this one doesn't match.
if (delta % currentSizes.SkipSize == 0)
{
return true;
}
}
}
return false;
}
protected Aes() {
KeySizeValue = 256;
BlockSizeValue = 128;
FeedbackSizeValue = 128;
LegalKeySizesValue = new KeySizes[1];
LegalKeySizesValue[0] = new KeySizes(128, 256, 64);
LegalBlockSizesValue = new KeySizes[1];
LegalBlockSizesValue[0] = new KeySizes(128, 128, 0);
}
public Null ()
{
KeySizeValue = 128;
BlockSizeValue = 128;
FeedbackSizeValue = 128;
LegalKeySizesValue = new KeySizes [1];
LegalKeySizesValue [0] = new KeySizes (0, 1024, 8);
LegalBlockSizesValue = new KeySizes [1];
LegalBlockSizesValue [0] = new KeySizes (0, 1024, 8);
}
public TripleDES()
{
// from SymmetricAlgorithm
KeySizeValue = 192;
BlockSizeValue = 64;
FeedbackSizeValue = 64;
LegalKeySizesValue = new KeySizes [1];
LegalKeySizesValue [0] = new KeySizes (128, 192, 64);
LegalBlockSizesValue = new KeySizes [1];
LegalBlockSizesValue [0] = new KeySizes (64, 64, 0);
}
private static int GetMin(KeySizes[] keySizes)
{
int min = int.MaxValue;
foreach (var keySize in keySizes)
{
if (keySize.MinSize < min)
{
min = keySize.MinSize;
}
}
return min;
}
public static bool IsKeySizeValid(this KeySizes keySizes, int keySize)
{
if (keySizes.SkipSize == 0)
{
return(keySizes.MinSize == keySize || keySizes.MaxSize == keySize);
}
for (int minSize = keySizes.MinSize; minSize <= keySizes.MaxSize; minSize += keySizes.SkipSize)
{
if (keySize == minSize)
{
return(true);
}
}
return(false);
}
public static void LegalBlockSizes()
{
using (Aes aes = AesFactory.Create())
{
KeySizes[] blockSizes = aes.LegalBlockSizes;
Assert.NotNull(blockSizes);
Assert.Equal(1, blockSizes.Length);
KeySizes blockSizeLimits = blockSizes[0];
Assert.Equal(128, blockSizeLimits.MinSize);
Assert.Equal(128, blockSizeLimits.MaxSize);
Assert.Equal(0, blockSizeLimits.SkipSize);
}
}
/// <summary>
/// Initializes a new instance of the RC4 class.
/// </summary>
internal RC4()
{
// Recommended length for use in the US is 128 bits.
KeySizeValue = 128;
// Usually, it is 256 bits. However, to increase safety, it is necessary to increase this value.
BlockSizeValue = 256;
// Response size cannot be larger than block size.
FeedbackSizeValue = BlockSizeValue;
// The algorithm has no max limit on the size of the S-box. Limitations only in performance and x86/x64 system.
LegalBlockSizesValue = new KeySizes[] { new KeySizes(256, 256, 0) };
// The key length can be 8-2048 bits (1 - 256 bytes).
LegalKeySizesValue = new KeySizes[] { new KeySizes(8, 2048, 0) };
// The CBC mode may also be considered a stream cipher with n-bit blocks playing the role of very large characters.
ModeValue = CipherMode.CBC;
PaddingValue = PaddingMode.None;
}
public static void LegalKeySizes()
{
using (Aes aes = AesFactory.Create())
{
KeySizes[] keySizes = aes.LegalKeySizes;
Assert.NotNull(keySizes);
Assert.Equal(1, keySizes.Length);
KeySizes keySizeLimits = keySizes[0];
Assert.Equal(128, keySizeLimits.MinSize);
Assert.Equal(256, keySizeLimits.MaxSize);
Assert.Equal(64, keySizeLimits.SkipSize);
}
}
/// <summary>
/// Try get legal nonce sizes.
/// </summary>
/// <param name="mode">Symmetric algorithm cipher mode.</param>
/// <param name="padding">Symmetric algorithm padding mode.</param>
/// <param name="nonceSizes">Legal nonce size bits.</param>
/// <returns></returns>
public bool TryGetNonceSizes(SymmetricCipherMode mode, SymmetricPaddingMode padding, out KeySizes[] nonceSizes)
{
switch (padding)
{
case SymmetricPaddingMode.NoPadding: break;
default: nonceSizes = null; return(false);
}
switch (mode)
{
case SymmetricCipherMode.CCM:
if (this.BlockSize == 128)
{
nonceSizes = new KeySizes[] { new KeySizes(56, 104, 8) };
return(true);
}
break;
case SymmetricCipherMode.EAX:
if (this.BlockSize == 64 || this.BlockSize == 128)
{
nonceSizes = new KeySizes[] { new KeySizes(8, 2147483640, 8) };
return(true);
}
break;
case SymmetricCipherMode.GCM:
if (this.BlockSize == 128)
{
nonceSizes = new KeySizes[] { new KeySizes(8, 2147483640, 8) };
return(true);
}
break;
case SymmetricCipherMode.OCB:
if (this.BlockSize == 128)
{
nonceSizes = new KeySizes[] { new KeySizes(0, 120, 8) };
return(true);
}
break;
default: break;
}
nonceSizes = null;
return(false);
}
/// <summary>
/// Try get legal mac sizes.
/// </summary>
/// <param name="mode">Symmetric algorithm cipher mode.</param>
/// <param name="padding">Symmetric algorithm padding mode.</param>
/// <param name="macSizes">Legal mac size bits.</param>
/// <returns></returns>
public bool TryGetMacSizes(SymmetricCipherMode mode, SymmetricPaddingMode padding, out KeySizes[] macSizes)
{
switch (padding)
{
case SymmetricPaddingMode.NoPadding: break;
default: macSizes = null; return(false);
}
switch (mode)
{
case SymmetricCipherMode.CCM:
if (this.BlockSize == 128)
{
macSizes = new KeySizes[] { new KeySizes(32, 128, 16) };
return(true);
}
break;
case SymmetricCipherMode.EAX:
if (this.BlockSize == 64 || this.BlockSize == 128)
{
macSizes = new KeySizes[] { new KeySizes(8, this.BlockSize, 8) };
return(true);
}
break;
case SymmetricCipherMode.GCM:
if (this.BlockSize == 128)
{
macSizes = new KeySizes[] { new KeySizes(32, 128, 8) };
return(true);
}
break;
case SymmetricCipherMode.OCB:
if (this.BlockSize == 128)
{
macSizes = new KeySizes[] { new KeySizes(64, 128, 8) };
return(true);
}
break;
default: break;
}
macSizes = null;
return(false);
}
/// <summary>Default constructor. Starts as an uninitialized ECB instance.</summary>
public BlowfishAlgorithm() : base()
{
KeySizeValue = BlowfishECB.MAX_KEY_LENGTH << 3;
LegalBlockSizesValue = new KeySizes[1];
LegalBlockSizesValue[0] = new KeySizes(
BlockSize,
BlockSize,
BlowfishECB.BLOCK_SIZE);
LegalKeySizesValue = new KeySizes[1];
LegalKeySizesValue[0] = new KeySizes(
0,
BlowfishECB.MAX_KEY_LENGTH << 3,
8);
ModeValue = CipherMode.ECB;
}
public static void LegalKeySizes()
{
using (Aes aes = AesFactory.Create())
{
KeySizes[] keySizes = aes.LegalKeySizes;
Assert.NotNull(keySizes);
Assert.Equal(1, keySizes.Length);
KeySizes keySizeLimits = keySizes[0];
Assert.Equal(128, keySizeLimits.MinSize);
Assert.Equal(256, keySizeLimits.MaxSize);
// Browser's SubtleCrypto doesn't support AES-192
int expectedKeySkipSize = PlatformDetection.IsBrowser ? 128 : 64;
Assert.Equal(expectedKeySkipSize, keySizeLimits.SkipSize);
}
}
public void LegalKeySizes(AsymmetricAlgorithm name, int minSize, int maxSize, int stepSize)
{
IAsymmetricKeyAlgorithmProvider provider = WinRTCrypto.AsymmetricKeyAlgorithmProvider.OpenAlgorithm(name);
IReadOnlyList <KeySizes>? result = provider.LegalKeySizes;
Assert.NotNull(result);
Assert.NotEmpty(result);
Action <int> attemptKeySize = size =>
{
provider.CreateKeyPair(size).Dispose();
};
KeySizes range = result.Single();
Assert.Equal(minSize, range.MinSize);
Assert.Equal(maxSize, range.MaxSize);
Assert.Equal(stepSize, range.StepSize);
}
// Initialise bi from XML element if element_name matches
// Used by FromXmlString
private bool CheckXmlElement(XmlReader reader, string element_name, string element_name_required, ref BigInteger bi_out)
{
if (element_name != element_name_required)
{
return(false);
}
string s = reader.ReadString();
byte[] b = Convert.FromBase64String(s);
if (element_name == "Modulus")
{
KeySizeValue = b.Length * 8;
LegalKeySizesValue[0] = new KeySizes(KeySizeValue, KeySizeValue, 0);
}
BigInteger bi = new BigInteger(b);
bi_out = bi;
return(true);
}
public PaillierManaged()
{
// create the key struct
o_key_struct = new PaillierKeyStruct();
// set all of the big integers to zero
o_key_struct.N = new BigInteger(0);
o_key_struct.G = new BigInteger(0);
o_key_struct.Lambda = new BigInteger(0);
o_key_struct.Miu = new BigInteger(0);
// set the default key size value
KeySizeValue = 1024;
// set the default padding mode
Padding = PaillierPaddingMode.LeadingZeros;
// set the range of legal keys
LegalKeySizesValue = new KeySizes[] { new KeySizes(384, 1088, 8) };
}
/// <summary>
/// constructor
/// </summary>
public BlowfishAlgorithm() : base()
{
m_bf = null;
m_bfc = null;
// FIXME: are we supposed to create a default key and IV?
IVValue = null;
KeyValue = null;
KeySizeValue = Blowfish.MAXKEYLENGTH * 8;
LegalBlockSizesValue = new KeySizes[1];
LegalBlockSizesValue[0] = new KeySizes(BlockSize, BlockSize, 8);
LegalKeySizesValue = new KeySizes[1];
LegalKeySizesValue[0] = new KeySizes(0, Blowfish.MAXKEYLENGTH * 8, 8);
ModeValue = CipherMode.ECB;
m_rng = null;
}
public BlowfishAlgorithm() : base()
{
m_bf = null;
m_bfc = null;
IVValue = null;
KeyValue = null;
KeySizeValue = Blowfish.MAXKEYLENGTH * 8;
LegalBlockSizesValue = new KeySizes[1];
LegalBlockSizesValue[0] = new KeySizes(BlockSize, BlockSize, 8);
LegalKeySizesValue = new KeySizes[1];
LegalKeySizesValue[0] = new KeySizes(0, Blowfish.MAXKEYLENGTH * 8, 8);
ModeValue = CipherMode.ECB;
m_rng = null;
}
private void UpdateLegalTagSizes(SafeBCryptAlgorithmHandle algorithm)
{
Debug.Assert(algorithm != null, "algorithm != null");
Debug.Assert(!algorithm.IsClosed && !algorithm.IsInvalid, "!algorithm.IsClosed && !algorithm.IsInvalid");
// Get the authentication tag length structure.
BCryptNative.BCRYPT_KEY_LENGTHS_STRUCT tagLengths =
BCryptNative.GetValueTypeProperty <SafeBCryptAlgorithmHandle, BCryptNative.BCRYPT_KEY_LENGTHS_STRUCT>(
algorithm,
BCryptNative.ObjectPropertyName.AuthTagLength);
// BCrypt returns the tag sizes in bytes, convert them to bits for the LegalTagSizes property
LegalTagSizesValue = new KeySizes[]
{
new KeySizes(tagLengths.dwMinLength * 8, tagLengths.dwMaxLength * 8, tagLengths.dwIncrement * 8)
};
// By default, generate the maximum authentication tag length possible for this algorithm
TagSize = tagLengths.dwMaxLength * 8;
}
public ElGamalManaged()
{
// create the key struct
o_key_struct = new ElGamalKeyStruct();
// set all of the big integers to zero
o_key_struct.P = new BigInteger(0);
o_key_struct.G = new BigInteger(0);
o_key_struct.Y = new BigInteger(0);
o_key_struct.X = new BigInteger(0);
// set the default key size value
KeySizeValue = 1024;
// set the default padding mode
Padding = ElGamalPaddingMode.Zeros;
// set the range of legal keys
LegalKeySizesValue = new KeySizes[] { new KeySizes(384, 1088, 8) };
}
//
// Summary:
// Constructs an InfoCardSymmetricAlgorithm
//
// Parameters:
// cryptoHandle - A handle to the symmetric key to base the symmetric algorithm on.
//
public InfoCardSymmetricAlgorithm(SymmetricCryptoHandle cryptoHandle)
: base()
{
m_cryptoHandle = (SymmetricCryptoHandle)cryptoHandle.Duplicate();
try
{
m_parameters = (RpcSymmetricCryptoParameters)m_cryptoHandle.Parameters;
KeySizeValue = m_parameters.keySize;
BlockSizeValue = m_parameters.blockSize;
FeedbackSizeValue = m_parameters.feedbackSize;
LegalBlockSizesValue = new KeySizes[] { new KeySizes(BlockSizeValue, BlockSizeValue, 0) };
LegalKeySizesValue = new KeySizes[] { new KeySizes(KeySizeValue, KeySizeValue, 0) };
}
catch
{
m_cryptoHandle.Dispose();
throw;
}
}
private static bool IsLegalSize(int size, KeySizes[] legalSizes)
{
for (int i = 0; i < legalSizes.Length; i++)
{
// If a cipher has only one valid key size, MinSize == MaxSize and SkipSize will be 0
if (legalSizes[i].SkipSize == 0)
{
if (legalSizes[i].MinSize == size)
return true;
}
else
{
for (int j = legalSizes[i].MinSize; j <= legalSizes[i].MaxSize; j += legalSizes[i].SkipSize)
{
if (j == size)
return true;
}
}
}
return false;
}
// Display specified KeySize properties to the console.
private static void ShowKeys(KeySizes[] keySizes, string objectName)
{
// Retrieve the first KeySizes in the array.
KeySizes firstKeySize = keySizes[0];
// Retrieve the minimum key size in bits.
int minKeySize = firstKeySize.MinSize;
// Retrieve the maximum key size in bits.
int maxKeySize = firstKeySize.MaxSize;
// Retrieve the interval between valid key size in bits.
int skipKeySize = firstKeySize.SkipSize;
Console.Write("\n KeySizes retrieved from the ");
Console.WriteLine(objectName + " object.");
Console.WriteLine("Minimum key size bits: " + minKeySize);
Console.WriteLine("Maximum key size bits: " + maxKeySize);
Console.WriteLine("Interval between key size bits: " +
skipKeySize);
}
//
// Summary:
// Given a pointer to a CryptoHandle create a new instance of this class.
//
public InfoCardRSACryptoProvider(AsymmetricCryptoHandle cryptoHandle)
: base()
{
m_cryptoHandle = (AsymmetricCryptoHandle)cryptoHandle.Duplicate();
try
{
m_params = (RpcAsymmetricCryptoParameters)m_cryptoHandle.Parameters;
int keySize = m_params.keySize;
LegalKeySizesValue = new KeySizes[1];
KeySizeValue = keySize;
LegalKeySizesValue[0] = new KeySizes(keySize, keySize, 0);
}
catch
{
m_cryptoHandle.Dispose();
m_cryptoHandle = null;
throw;
}
}
public Trivial()
{
// Desktop's SymmetricAlgorithm reads from the field overly aggressively,
// but in Core it always reads from the property. By setting the field
// we're still happy on Desktop tests, and we can validate the default
// behavior of the LegalBlockSizes property.
LegalBlockSizesValue = new KeySizes[]
{
new KeySizes(5 * 8, -99 * 8, 0 * 8),
new KeySizes(13 * 8, 22 * 8, 6 * 8),
new KeySizes(101 * 8, 104 * 8, 1 * 8),
};
// Desktop's SymmetricAlgorithm reads from the property correctly, but
// we'll set the field here, anyways, to validate the default behavior
// of the LegalKeySizes property.
LegalKeySizesValue = new KeySizes[]
{
new KeySizes(5 * 8, -99 * 8, 0 * 8),
new KeySizes(13 * 8, 22 * 8, 6 * 8),
new KeySizes(101 * 8, 104 * 8, 1 * 8),
};
}
private static Byte[] Pad(Byte[] buf, KeySizes keySize)
{
var psize = buf.Length * 8;
var size = 0;
for (var i = keySize.MinSize; i <= keySize.MaxSize; i += keySize.SkipSize)
{
if (i >= psize)
{
size = i / 8;
break;
}
// DES的SkipSize为0
if (keySize.SkipSize == 0)
{
break;
}
}
// 所有key大小都不合适，取最大值，此时密码过长，需要截断
if (size == 0)
{
size = keySize.MaxSize / 8;
}
if (buf.Length == size)
{
return(buf);
}
var buf2 = new Byte[size];
buf2.Write(0, buf);
return(buf2);
}
/// <summary>
/// Initializes a new instance of the RC4CryptoServiceProvider class.
/// </summary>
public RC4CryptoServiceProvider()
{
// Change the limits for the current implementation (5 - 256 bytes).
LegalKeySizesValue = new KeySizes[] { new KeySizes(40, 2048, 0) };
}
private bool CompareKeySizes (KeySizes k1, KeySizes k2)
{
bool result = k1.MaxSize == k2.MaxSize;
result = result && k1.MinSize == k2.MinSize;
result = result && k1.SkipSize == k2.SkipSize;
return result;
}
private void Common (int dwKeySize, CspParameters p)
{
// Microsoft RSA CSP can do between 384 and 16384 bits keypair
LegalKeySizesValue = new KeySizes [1];
LegalKeySizesValue [0] = new KeySizes (384, 16384, 8);
base.KeySize = dwKeySize;
rsa = new RSAManaged (KeySize);
rsa.KeyGenerated += new RSAManaged.KeyGeneratedEventHandler (OnKeyGenerated);
persistKey = (p != null);
if (p == null) {
p = new CspParameters (PROV_RSA_FULL);
#if NET_1_1
if (useMachineKeyStore)
p.Flags |= CspProviderFlags.UseMachineKeyStore;
#endif
store = new KeyPairPersistence (p);
// no need to load - it cannot exists
}
else {
store = new KeyPairPersistence (p);
store.Load ();
if (store.KeyValue != null) {
persisted = true;
this.FromXmlString (store.KeyValue);
}
}
}
public RijndaelLegalSizesBreaker()
{
LegalKeySizesValue[0] = new KeySizes(1, 1, 0);
LegalBlockSizesValue[0] = new KeySizes(1, 1, 0);
}
/// <summary>
/// Try get legal sizes.
/// </summary>
/// <param name="mode">Symmetric algorithm cipher mode.</param>
/// <param name="padding">Symmetric algorithm padding mode.</param>
/// <param name="ivSizes">Legal iv size bits.</param>
/// <returns></returns>
public bool TryGetIVSizes(SymmetricCipherMode mode, SymmetricPaddingMode padding, out KeySizes[] ivSizes)
{
bool pad;
switch (padding)
{
case SymmetricPaddingMode.NoPadding: pad = false; break;
case SymmetricPaddingMode.PKCS7:
case SymmetricPaddingMode.Zeros:
case SymmetricPaddingMode.X923:
case SymmetricPaddingMode.ISO10126:
case SymmetricPaddingMode.ISO7816_4:
case SymmetricPaddingMode.TBC: pad = true; break;
default: ivSizes = null; return(false);
}
switch (mode)
{
case SymmetricCipherMode.CBC: ivSizes = new KeySizes[] { new KeySizes(this.BlockSize, this.BlockSize, 0) }; return(true);
case SymmetricCipherMode.ECB: ivSizes = new KeySizes[] { new KeySizes(0, 0, 0) }; return(true);
case SymmetricCipherMode.OFB: ivSizes = new KeySizes[] { new KeySizes(8, this.BlockSize, 8) }; return(true);
case SymmetricCipherMode.CFB: ivSizes = new KeySizes[] { new KeySizes(8, this.BlockSize, 8) }; return(true);
case SymmetricCipherMode.CTS:
if (!pad)
{
ivSizes = new KeySizes[] { new KeySizes(this.BlockSize, this.BlockSize, 0) };
return(true);
}
break;
case SymmetricCipherMode.CTR:
{
int min = Math.Max(this.BlockSize / 2, this.BlockSize - 64);
ivSizes = new KeySizes[] { new KeySizes(min, this.BlockSize, 8) };
return(true);
}
case SymmetricCipherMode.CTS_ECB:
if (!pad)
{
ivSizes = new KeySizes[] { new KeySizes(0, 0, 0) };
return(true);
}
break;
case SymmetricCipherMode.GOFB:
if (this.BlockSize == 64)
{
ivSizes = new KeySizes[] { new KeySizes(this.BlockSize, this.BlockSize, 0) };
return(true);
}
break;
case SymmetricCipherMode.OpenPGPCFB:
ivSizes = new KeySizes[] { new KeySizes(8, this.BlockSize, 8) };
return(true);
case SymmetricCipherMode.SIC:
if (this.BlockSize >= 128)
{
int min = Math.Max(this.BlockSize / 2, this.BlockSize - 64);
ivSizes = new KeySizes[] { new KeySizes(min, this.BlockSize, 8) };
return(true);
}
break;
case SymmetricCipherMode.CCM:
if (!pad && this.BlockSize == 128)
{
ivSizes = new KeySizes[] { new KeySizes(56, 104, 8) };
return(true);
}
break;
case SymmetricCipherMode.EAX:
if (!pad && (this.BlockSize == 64 || this.BlockSize == 128))
{
ivSizes = new KeySizes[] { new KeySizes(8, 2147483640, 8) };
return(true);
}
break;
case SymmetricCipherMode.GCM:
if (!pad && this.BlockSize == 128)
{
ivSizes = new KeySizes[] { new KeySizes(8, 2147483640, 8) };
return(true);
}
break;
case SymmetricCipherMode.OCB:
if (!pad && this.BlockSize == 128)
{
ivSizes = new KeySizes[] { new KeySizes(0, 120, 8) };
return(true);
}
break;
default: break;
}
ivSizes = null;
return(false);
}
public static bool IsLegalSize(this int size, KeySizes legalSizes)
{
return(size.IsLegalSize(legalSizes, out _));
}
void Common (int dwKeySize, bool parameters)
{
// Microsoft RSA CSP can do between 384 and 16384 bits keypair
LegalKeySizesValue = new KeySizes [1];
LegalKeySizesValue [0] = new KeySizes (384, 16384, 8);
base.KeySize = dwKeySize;
rsa = new RSAManaged (KeySize);
rsa.KeyGenerated += new RSAManaged.KeyGeneratedEventHandler (OnKeyGenerated);
persistKey = parameters;
if (parameters)
return;
// no need to load - it cannot exists
var p = new CspParameters (PROV_RSA_FULL);
if (useMachineKeyStore)
p.Flags |= CspProviderFlags.UseMachineKeyStore;
store = new KeyPairPersistence (p);
}
private static int GetMax(KeySizes[] keySizes)
{
int max = 0;
foreach (var keySize in keySizes)
{
if (keySize.MaxSize > max)
{
max = keySize.MaxSize;
}
}
return max;
}
public RC2LegalSizesBreaker()
{
LegalKeySizesValue[0] = new KeySizes(1, 1, 0);
LegalBlockSizesValue[0] = new KeySizes(1, 1, 0);
}
private void Common (int dwKeySize, CspParameters p)
{
// Microsoft RSA CSP can do between 384 and 16384 bits keypair
LegalKeySizesValue = new KeySizes [1];
LegalKeySizesValue [0] = new KeySizes (384, 16384, 8);
base.KeySize = dwKeySize;
rsa = new RSAManaged (KeySize);
rsa.KeyGenerated += new RSAManaged.KeyGeneratedEventHandler (OnKeyGenerated);
persistKey = (p != null);
if (p == null) {
p = new CspParameters (PROV_RSA_FULL);
if (useMachineKeyStore)
p.Flags |= CspProviderFlags.UseMachineKeyStore;
store = new KeyPairPersistence (p);
// no need to load - it cannot exists
}
else {
store = new KeyPairPersistence (p);
bool exists = store.Load ();
bool required = (p.Flags & CspProviderFlags.UseExistingKey) != 0;
if (required && !exists)
throw new CryptographicException ("Keyset does not exist");
if (store.KeyValue != null) {
persisted = true;
this.FromXmlString (store.KeyValue);
}
}
}
public DSAManaged (int dwKeySize)
{
KeySizeValue = dwKeySize;
LegalKeySizesValue = new KeySizes [1];
LegalKeySizesValue [0] = new KeySizes (512, 1024, 64);
}
public bool ValidKeySize(int bitLength)
{
return(KeySizes.IsLegalKeySize(LegalKeySizesValue, bitLength));
}
public RSAManaged (int keySize)
{
LegalKeySizesValue = new KeySizes [1];
LegalKeySizesValue [0] = new KeySizes (384, 16384, 8);
base.KeySize = keySize;
}
// Check that a size value is in a size list.
private void CheckSize(String msg, KeySizes[] sizes, int value)
{
foreach(KeySizes size in sizes)
{
if(value >= size.MinSize && value <= size.MaxSize &&
((value - size.MinSize) % size.SkipSize) == 0)
{
return;
}
}
Fail(msg);
}
public CryptoRSA(KeySizes KeySize)
{
_RSACSP = new RSACryptoServiceProvider((int)KeySize);
_Converter = new UTF8Encoding();
}
public Trivial()
{
LegalKeySizesValue = new KeySizes[]
{
new KeySizes(5*8, -99*8, 0*8),
new KeySizes(13*8, 22*8, 6*8),
new KeySizes(101*8, 104*8, 1*8),
new KeySizes(101*8 + 1, 101*8 + 2, 1),
};
}
void Common (int dwKeySize, bool parameters)
{
LegalKeySizesValue = new KeySizes [1];
LegalKeySizesValue [0] = new KeySizes (512, 1024, 64);
// will throw an exception is key size isn't supported
KeySize = dwKeySize;
dsa = new DSAManaged (dwKeySize);
dsa.KeyGenerated += new DSAManaged.KeyGeneratedEventHandler (OnKeyGenerated);
persistKey = parameters;
if (parameters)
return;
var p = new CspParameters (PROV_DSS_DH);
if (useMachineKeyStore)
p.Flags |= CspProviderFlags.UseMachineKeyStore;
store = new KeyPairPersistence (p);
// no need to load - it cannot exists
}
private void OnKeySizeChanged(object sender, EventArgs e)
{
KeySizes ksize = KeySizes.K256;
Enum.TryParse<KeySizes>(((ComboBox)sender).Text, out ksize);
_keySize = ksize;
}
public Trivial()
{
// Desktop's SymmetricAlgorithm reads from the field overly aggressively,
// but in Core it always reads from the property. By setting the field
// we're still happy on Desktop tests, and we can validate the default
// behavior of the LegalBlockSizes property.
LegalBlockSizesValue = new KeySizes[]
{
new KeySizes(5*8, -99*8, 0*8),
new KeySizes(13*8, 22*8, 6*8),
new KeySizes(101*8, 104*8, 1*8),
};
// Desktop's SymmetricAlgorithm reads from the property correctly, but
// we'll set the field here, anyways, to validate the default behavior
// of the LegalKeySizes property.
LegalKeySizesValue = new KeySizes[]
{
new KeySizes(5*8, -99*8, 0*8),
new KeySizes(13*8, 22*8, 6*8),
new KeySizes(101*8, 104*8, 1*8),
};
}
public TripleDESLegalSizesBreaker()
{
LegalKeySizesValue[0] = new KeySizes(1, 1, 0);
LegalBlockSizesValue[0] = new KeySizes(1, 1, 0);
}
public RSAManaged(int keySize)
{
LegalKeySizesValue = new KeySizes [1];
LegalKeySizesValue [0] = new KeySizes(384, 16384, 8);
base.KeySize = keySize;
}
public RSAManaged (int keySize)
{
KeySizeValue = keySize;
LegalKeySizesValue = new KeySizes [1];
LegalKeySizesValue [0] = new KeySizes (192, 16384, 8);//duff 384 before now 192
}
private int GetKeySize(string KeyPath)
{
KeySizes keySize = KeyHeader.GetKeySize(KeyPath);
if (this.Engine == Engines.DCS)
{
return(96);
}
if (keySize == KeySizes.K128)
{
return(16);
}
else if (keySize == KeySizes.K192)
{
return(24);
}
else if (keySize == KeySizes.K192)
{
return(24);
}
else if (keySize == KeySizes.K256)
{
return(32);
}
else if (keySize == KeySizes.K384)
{
return(48);
}
else if (keySize == KeySizes.K448)
{
return(56);
}
else if (keySize == KeySizes.K512)
{
return(64);
}
else if (keySize == KeySizes.K1024)
{
return(128);
}
else if (keySize == KeySizes.K1536)
{
return(192);
}
else if (keySize == KeySizes.K2560)
{
return(320);
}
else if (keySize == KeySizes.K3584)
{
return(448);
}
else if (keySize == KeySizes.K4608)
{
return(576);
}
else
{
return(32);
}
}
public TripleDESLegalSizesBreaker()
{
LegalKeySizesValue[0] = new KeySizes(1, 1, 0);
LegalBlockSizesValue[0] = new KeySizes(1, 1, 0);
}
public HostManaged()
{
// define the valid block and key sizes
LegalKeySizesValue = new KeySizes[] { new KeySizes(256, 256, 0) };
LegalBlockSizesValue = new KeySizes[] { new KeySizes(64, 64, 0) };
}
