public static CryptographicKey Load(string pubKeyContent)
{
CryptographicPublicKeyBlobType blobType;
var block = new Pem(pubKeyContent);
if (block.Type == null) //not pem encoded
{
//trying to guess blob type
blobType = pubKeyContent.StartsWith("MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8A")
? CryptographicPublicKeyBlobType.X509SubjectPublicKeyInfo
: CryptographicPublicKeyBlobType.Pkcs1RsaPublicKey;
}
else if ("PUBLIC KEY".Equals(block.Type))
{
blobType = CryptographicPublicKeyBlobType.X509SubjectPublicKeyInfo;
}
else if ("RSA PUBLIC KEY".Equals(block.Type))
{
blobType = CryptographicPublicKeyBlobType.Pkcs1RsaPublicKey;
}
else
{
throw new Exception(string.Format("PublicKey.Load(): Unsupported type in PEM block '{0}'", block.Type));
}
return(AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1)
.ImportPublicKey(CryptographicBuffer.CreateFromByteArray(block.Decoded), blobType));
}
private CryptographicKey GenerateAsymmetricKey()
{
String algName = AlgorithmNames.SelectionBoxItem.ToString();
UInt32 keySize = UInt32.Parse(KeySizes.SelectionBoxItem.ToString());
CryptographicKey keyPair;
// Create an AsymmetricKeyAlgorithmProvider object for the algorithm specified on input.
AsymmetricKeyAlgorithmProvider Algorithm = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(algName);
EncryptDecryptText.Text += "*** Sample Encryption Algorithm\n";
EncryptDecryptText.Text += " Algorithm Name: " + Algorithm.AlgorithmName + "\n";
EncryptDecryptText.Text += " Key Size: " + keySize + "\n";
// Generate a key pair.
try
{
keyPair = Algorithm.CreateKeyPair(keySize);
}
catch (ArgumentException ex)
{
EncryptDecryptText.Text += ex.Message + "\n";
EncryptDecryptText.Text += "An invalid key size was specified for the given algorithm.";
return(null);
}
return(keyPair);
}
async public void Decrypt()
{
CryptographicKey cryptographicKey = null;
FileOpenPicker fileOpenPicker = new FileOpenPicker();
fileOpenPicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
fileOpenPicker.FileTypeFilter.Add("*");
StorageFile file = await fileOpenPicker.PickSingleFileAsync();
IBuffer bufferPrivateKey = await FileIO.ReadBufferAsync(file);
AsymmetricKeyAlgorithmProvider provider = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1);
try { cryptographicKey = provider.ImportKeyPair(bufferPrivateKey); }
catch (Exception er) {
}
try { decryptedkey = CryptographicEngine.Decrypt(cryptographicKey, buffEncryptedSessionKey, null); }
catch (Exception er)
{
ContentDialog contentDialog = new ContentDialog();
contentDialog.Title = "Wrong private key";
contentDialog.Content = "Try another private key";
contentDialog.CloseButtonText = "Ok";
await contentDialog.ShowAsync();
}
T8.Text = "Decrypted Key Base64: " + CryptographicBuffer.EncodeToBase64String(decryptedkey);
T9.Text = "Decrypted Key BaseHex: " + CryptographicBuffer.EncodeToHexString(decryptedkey);
}
public byte[] Sign(byte[] securedInput, object key)
{
//using (var sha = HashAlgorithm)
//{
//var privateKey = Ensure.Type<AsymmetricAlgorithm>(key, "RsaUsingSha alg expects key to be of AsymmetricAlgorithm type.");
AsymmetricKeyAlgorithmProvider provider =
AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaSignPkcs1Sha256);
//CryptographicKey cryptographicKey = (CryptographicKey)key;
CryptographicKey cryptographicKey = provider.ImportKeyPair(((CryptographicKey)key).Export(CryptographicPrivateKeyBlobType.BCryptPrivateKey),
CryptographicPrivateKeyBlobType.BCryptPrivateKey);
//provider.ImportKeyPair(null, CryptographicPrivateKeyBlobType.)
IBuffer signedData =
CryptographicEngine.Sign(cryptographicKey, CryptographicBuffer.CreateFromByteArray(securedInput));
byte[] result;
CryptographicBuffer.CopyToByteArray(signedData, out result);
return(result);
//var pkcs1 = new RSAPKCS1SignatureFormatter(privateKey);
//pkcs1.SetHashAlgorithm(hashMethod);
//return pkcs1.CreateSignature(sha.ComputeHash(securedInput));
//}
}
/// <summary>
/// WPRT的RSA私钥解密
/// </summary>
/// <param name="rawData"></param>
/// <returns></returns>
public static string PrivateDecrypt(string rawData)
{
try
{
/*将文本转换成IBuffer*/
IBuffer bufferRawData = CryptographicBuffer.ConvertStringToBinary(rawData, BinaryStringEncoding.Utf8);
/*加密算法提供程序*/
AsymmetricKeyAlgorithmProvider provider = AsymmetricKeyAlgorithmProvider.OpenAlgorithm
(AsymmetricAlgorithmNames.RsaPkcs1);
/*导入私钥*/
string PRIVATE_KEY = "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";
CryptographicKey privateKey = provider.ImportKeyPair(CryptographicBuffer.DecodeFromBase64String(PRIVATE_KEY));
//解密
IBuffer result = CryptographicEngine.Decrypt(privateKey, bufferRawData, null);
byte[] res;
CryptographicBuffer.CopyToByteArray(result, out res);
return(Encoding.UTF8.GetString(res, 0, res.Length));
}
catch (Exception)
{
return(rawData);
}
}
public string WinRTEncrypt1(byte[] test, string publicKey)
{
string strIn = "))))";
IBuffer plainBuffer = CryptographicBuffer.ConvertStringToBinary(strIn, BinaryStringEncoding.Utf8);
strIn = CryptographicBuffer.EncodeToBase64String(plainBuffer);
plainBuffer = CryptographicBuffer.ConvertStringToBinary(strIn, BinaryStringEncoding.Utf8);
// <asymmetric>
AsymmetricKeyAlgorithmProvider asym = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1);
//AsymmetricKeyAlgorithmProvider asym = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaOaepSha256);
IBuffer keyBuffer = CryptographicBuffer.DecodeFromBase64String(publicKey);
CryptographicKey key = asym.ImportPublicKey(keyBuffer, CryptographicPublicKeyBlobType.Pkcs1RsaPublicKey);
IBuffer encryptedBuffer = CryptographicEngine.Encrypt(key, plainBuffer, null);
// </asymmetric>
/*
* // <symmetric>
* SymmetricKeyAlgorithmProvider sym = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesCbc);
*
* IBuffer temp_key = CryptographicBuffer.ConvertStringToBinary("1234567890", BinaryStringEncoding.Utf8);
*
* string keyblyad = CryptographicBuffer.EncodeToBase64String(temp_key);
*
* IBuffer key_buffer = CryptographicBuffer.ConvertStringToBinary(keyblyad, BinaryStringEncoding.Utf8);
*
* CryptographicKey key1 = sym.CreateSymmetricKey(key_buffer);
* IBuffer encryptedBuffer = CryptographicEngine.Encrypt(key1, plainBuffer, null);
* // </symmetric>
*/
byte[] lole = encryptedBuffer.ToArray();
string lol = "";
for (int i = 0; i < lole.Length; i++)
{
lol += (char)lole[i];
}
textBox3.Text = lol;
//string result = CryptographicBuffer.EncodeToHexString(encryptedBuffer);
//string result = CryptographicBuffer.ConvertBinaryToString(BinaryStringEncoding.Utf16LE, encryptedBuffer);
string result = CryptographicBuffer.EncodeToBase64String(encryptedBuffer);
//result = CryptographicBuffer.EncodeToBase64String(encryptedSymBuffer);
//string result = CryptographicBuffer.EncodeToBase64String(buffUTF8);
return(result);
}
private void AsymmetricImportExport(CryptographicKey keyPair)
{
String algName = AlgorithmNames.SelectionBoxItem.ToString();
AsymmetricKeyAlgorithmProvider Algorithm = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(algName);
// Export the public key.
IBuffer blobOfPublicKey = keyPair.ExportPublicKey();
IBuffer blobOfKeyPair = keyPair.Export();
SignVerifyText.Text += " Key pair was successfully exported.\n";
// Import the public key.
CryptographicKey keyPublic = Algorithm.ImportPublicKey(blobOfPublicKey);
// Check the key size.
if (keyPublic.KeySize != keyPair.KeySize)
{
SignVerifyText.Text += "ImportPublicKey failed! The imported key's size did not match the original's!";
return;
}
SignVerifyText.Text += " Public key was successfully imported.\n";
// Import the key pair.
keyPair = Algorithm.ImportKeyPair(blobOfKeyPair);
// Check the key size.
if (keyPublic.KeySize != keyPair.KeySize)
{
SignVerifyText.Text += "ImportKeyPair failed! The imported key's size did not match the original's!";
return;
}
SignVerifyText.Text += " Key pair was successfully imported.\n";
}
public static byte[] Decrypt(SecureString privateKey, byte[] data)
{
if (privateKey == null)
{
throw new ArgumentNullException(nameof(privateKey));
}
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
#if WINDOWS_UWP
var keyBuffer = CryptographicBuffer.DecodeFromBase64String(privateKey.GetString());
var asym = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1);
var key = asym.ImportKeyPair(keyBuffer, CryptographicPrivateKeyBlobType.Capi1PrivateKey);
var plainBuffer = CryptographicEngine.Decrypt(key, data.AsBuffer(), null);
byte[] plainBytes;
CryptographicBuffer.CopyToByteArray(plainBuffer, out plainBytes);
return(plainBytes);
#else
var cspParams = new CspParameters {
ProviderType = 1 /* PROV_RSA_FULL */
};
var rsaProvider = new RSACryptoServiceProvider(cspParams);
rsaProvider.ImportCspBlob(Convert.FromBase64String(privateKey.GetString()));
return(rsaProvider.Decrypt(data, false));
#endif
}
public static void GenerateKey(out byte[] fullKey, out byte[] publicKey)
{
var key = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithm.RsaSignPssSha512).CreateKeyPair(2048);
fullKey = key.Export();
publicKey = key.ExportPublicKey();
}
/// <summary>
/// Encrypts data
/// </summary>
/// <param name="publicKey">The public key to use to encrypt the data</param>
/// <param name="data">The data to encrypt</param>
/// <returns>The ecrypted data</returns>
/// <exception cref="ArgumentNullException"><paramref name="publicKey"/> is null</exception>
/// <exception cref="ArgumentNullException"><paramref name="data"/> is null</exception>
public static byte[] Encrypt(string publicKey, byte[] data)
{
if (publicKey == null)
{
throw new ArgumentNullException(nameof(publicKey));
}
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
#if WINDOWS_UWP
var keyBuffer = CryptographicBuffer.DecodeFromBase64String(publicKey);
var asym = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1);
var key = asym.ImportPublicKey(keyBuffer, CryptographicPublicKeyBlobType.Capi1PublicKey);
var plainBuffer = CryptographicBuffer.CreateFromByteArray(data);
var encryptedBuffer = CryptographicEngine.Encrypt(key, plainBuffer, null);
byte[] encryptedBytes;
CryptographicBuffer.CopyToByteArray(encryptedBuffer, out encryptedBytes);
return(encryptedBytes);
#else
var cspParams = new CspParameters {
ProviderType = 1 /* PROV_RSA_FULL */
};
var rsaProvider = new RSACryptoServiceProvider(cspParams);
rsaProvider.ImportCspBlob(Convert.FromBase64String(publicKey));
return(rsaProvider.Encrypt(data, false));
#endif
}
/// <summary>
/// Creates a public and private key pair that can be used for asymmethric encryption
/// </summary>
/// <param name="keySize">The keysize to generate</param>
/// <returns>The generated key size</returns>
public static KeyPair CreateKeyPair(RSAKeySizes keySize)
{
#if WINDOWS_UWP
var asym = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1);
var key = asym.CreateKeyPair((uint)keySize);
var privateKeyBuffer = key.Export(CryptographicPrivateKeyBlobType.Capi1PrivateKey);
var publicKeyBuffer = key.ExportPublicKey(CryptographicPublicKeyBlobType.Capi1PublicKey);
byte[] privateKeyBytes;
byte[] publicKeyBytes;
CryptographicBuffer.CopyToByteArray(privateKeyBuffer, out privateKeyBytes);
CryptographicBuffer.CopyToByteArray(publicKeyBuffer, out publicKeyBytes);
string privateKey = Convert.ToBase64String(privateKeyBytes);
string publicKey = Convert.ToBase64String(publicKeyBytes);
#else
var cspParams = new CspParameters {
ProviderType = 1 /* PROV_RSA_FULL */
};
var rsaProvider = new RSACryptoServiceProvider((int)keySize, cspParams);
string publicKey = Convert.ToBase64String(rsaProvider.ExportCspBlob(false));
string privateKey = Convert.ToBase64String(rsaProvider.ExportCspBlob(true));
#endif
return(new KeyPair(privateKey.ToSecureString(), publicKey));
}
public async Task <byte[]> Sign(CancellationToken ct, string pairName, byte[] data)
{
if (this.Log().IsEnabled(LogLevel.Debug))
{
this.Log().Debug($"Signing a key pair (pair name: '{pairName}').");
}
pairName.Validation().NotNullOrEmpty(nameof(pairName));
data.Validation().NotNull(nameof(data));
await AssertIsEnabled(ct);
using (await _asyncLock.LockAsync(ct))
{
var algorithm = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.EcdsaP256Sha256);
var rawKeyPair = RetrieveKey(pairName).AsBuffer();
var keyPair = algorithm.ImportKeyPair(rawKeyPair);
using (var sha256 = SHA256.Create())
{
var hash = sha256.ComputeHash(data);
var signature = await CryptographicEngine.SignHashedDataAsync(keyPair, hash.AsBuffer());
if (this.Log().IsEnabled(LogLevel.Information))
{
this.Log().Info($"Successfully signed a key pair (pair name: '{pairName}').");
}
return(signature.ToArray());
}
}
}
public async Task <byte[]> GenerateKeyPair(CancellationToken ct, string name)
{
if (this.Log().IsEnabled(LogLevel.Debug))
{
this.Log().Debug($"Generating a key pair (name: '{name}').");
}
name.Validation().NotNullOrEmpty(nameof(name));
await AssertIsEnabled(ct);
using (await _asyncLock.LockAsync(ct))
{
var algorithm = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.EcdsaP256Sha256);
var keyPair = algorithm.CreateKeyPair(256);
SaveKey(name, keyPair.Export().ToArray());
if (this.Log().IsEnabled(LogLevel.Information))
{
this.Log().Info($"Return the successfully generated key pair (name: '{name}').");
}
return(keyPair.ExportPublicKey().ToArray());
}
}
public static CryptographicKey Load(string privKeyContent)
{
CryptographicPrivateKeyBlobType blobType;
var block = new Pem(privKeyContent);
if (block.Type == null) //not pem encoded
{
throw new Exception("PrivateKey.Load(): Only PEM encoded blocks are supported, but was given not PEM encoded.");
}
if ("PRIVATE KEY".Equals(block.Type))
{
blobType = CryptographicPrivateKeyBlobType.Pkcs8RawPrivateKeyInfo;
}
else if ("RSA PRIVATE KEY".Equals(block.Type))
{
blobType = CryptographicPrivateKeyBlobType.Pkcs1RsaPrivateKey;
}
else
{
throw new Exception(string.Format("PrivateKey.Load(): Unsupported type in PEM block '{0}'", block.Type));
}
return(AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1)
.ImportKeyPair(CryptographicBuffer.CreateFromByteArray(block.Decoded), blobType));
}
/// <summary>
/// Checks directory for keys and returns a boolean
///
/// true = keys exists
/// false = keys do not exists
///
/// </summary>
/// <returns></returns>
private static async System.Threading.Tasks.Task <bool> checkKeysDirectory()
{
// read keypair for sender if it exists
StorageFolder localFolder =
ApplicationData.Current.LocalFolder;
try
{
StorageFile senderKeyPair =
await localFolder.GetFileAsync(DataContainer.User + ".KeyPair");
if (senderKeyPair != null)
{
string keyPairText = await FileIO.ReadTextAsync(senderKeyPair);
// buffer from text
DataContainer.senderKeyPair = decode64BaseString(keyPairText);
// Open the algorithm provider for the specified asymmetric algorithm.
AsymmetricKeyAlgorithmProvider objAlgProv = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(strAsymmetricAlgName);
// Import the public key from a buffer.
CryptographicKey keyPair = objAlgProv.ImportKeyPair(DataContainer.senderKeyPair);
DataContainer.senderPublicKey = keyPair.ExportPublicKey();
return(true);
}
}
catch (System.IO.FileNotFoundException ex)
{
Debug.WriteLine(ex.ToString());
}
return(false);
}
public bool VerifySignature(byte[] key)
{
return(CryptographicEngine.VerifySignature(
AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithm.RsaSignPssSha512).ImportPublicKey(key),
Encoding.Unicode.GetBytes(License.ToJson(Formatting.None)),
Convert.FromBase64String(Signature)));
}
public static string WinRTEncrypt(string publicKey, string data)
{
string strIn = "Input String";
IBuffer buffUTF8 = CryptographicBuffer.ConvertStringToBinary(strIn, BinaryStringEncoding.Utf8);
String strUTF8 = CryptographicBuffer.ConvertBinaryToString(BinaryStringEncoding.Utf8, buffUTF8);
IBuffer keyBuffer = CryptographicBuffer.DecodeFromBase64String(publicKey);
AsymmetricKeyAlgorithmProvider asym = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1);
//AsymmetricKeyAlgorithmProvider asym = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaOaepSha256);
CryptographicKey key = asym.ImportPublicKey(keyBuffer, CryptographicPublicKeyBlobType.Pkcs1RsaPublicKey);
IBuffer plainBuffer = CryptographicBuffer.ConvertStringToBinary(strIn, BinaryStringEncoding.Utf8);
IBuffer encryptedBuffer = CryptographicEngine.Encrypt(key, plainBuffer, null);
//string result = CryptographicBuffer.EncodeToHexString(encryptedBuffer);
//string result = CryptographicBuffer.ConvertBinaryToString(BinaryStringEncoding.Utf16LE, encryptedBuffer);
string result = CryptographicBuffer.EncodeToBase64String(encryptedBuffer);
return(result);
}
//Decrypts Data (Always using private key)
public static string Decrypt(String strAsymmetricAlgName, IBuffer buffPrivateKeyStorage, string encryptedMessage)
{
// Open the algorithm provider for the specified asymmetric algorithm.
AsymmetricKeyAlgorithmProvider objAsymmAlgProv = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(strAsymmetricAlgName);
// Import the public key from a buffer. You should keep your private key
// secure. For the purposes of this example, however, the private key is
// just stored in a static class variable.
CryptographicKey keyPair = objAsymmAlgProv.ImportKeyPair(buffPrivateKeyStorage);
//Convert message String to IBuffer
IBuffer convertedString = CryptographicBuffer.DecodeFromBase64String(encryptedMessage);
IBuffer buffDecryptedMessage;
try {
// Use the private key embedded in the key pair to decrypt the session key.
buffDecryptedMessage = CryptographicEngine.Decrypt(keyPair, convertedString, null);
} catch (System.ArgumentException) {
string invalidDecryptionMessage = "INVALID DECRYPTION KEY";
return(invalidDecryptionMessage);
}
//Return decrpyted message as a string
string decryptedMessage = CryptographicBuffer.ConvertBinaryToString(BinaryStringEncoding.Utf8, buffDecryptedMessage);
return(decryptedMessage);
}
/// <summary>
/// 加密密码
/// </summary>
/// <param name="password">密码</param>
/// <returns></returns>
private async Task <string> EncryptedPasswordAsync(string password)
{
string base64String;
try
{
string param = BiliTool.UrlContact("").TrimStart('?');
string content = await BiliTool.PostContentToWebAsync(Api.PASSPORT_KEY_ENCRYPT, param);
JObject jobj = JObject.Parse(content);
string str = jobj["data"]["hash"].ToString();
string str1 = jobj["data"]["key"].ToString();
string str2 = string.Concat(str, password);
string str3 = Regex.Match(str1, "BEGIN PUBLIC KEY-----(?<key>[\\s\\S]+)-----END PUBLIC KEY").Groups["key"].Value.Trim();
byte[] numArray = Convert.FromBase64String(str3);
AsymmetricKeyAlgorithmProvider asymmetricKeyAlgorithmProvider = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1);
CryptographicKey cryptographicKey = asymmetricKeyAlgorithmProvider.ImportPublicKey(WindowsRuntimeBufferExtensions.AsBuffer(numArray), 0);
IBuffer buffer = CryptographicEngine.Encrypt(cryptographicKey, WindowsRuntimeBufferExtensions.AsBuffer(Encoding.UTF8.GetBytes(str2)), null);
base64String = Convert.ToBase64String(WindowsRuntimeBufferExtensions.ToArray(buffer));
}
catch (Exception)
{
base64String = password;
}
return(base64String);
}
/// <summary>
/// Проверка лицензии
/// </summary>
/// <returns></returns>
public bool IsLicenseValid()
{
bool res = false;
try
{
IBuffer SignatureBuffer = Signature.AsBuffer();
IBuffer ServerPublicKeyBuffer = Convert.FromBase64String(GlobalVars.ServerPublicKey).AsBuffer();
AsymmetricKeyAlgorithmProvider RSAVerifyProv = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaSignPkcs1Sha512);
CryptographicKey ServerPublicKey = RSAVerifyProv.ImportPublicKey(ServerPublicKeyBuffer, CryptographicPublicKeyBlobType.Capi1PublicKey);
byte[] tmpuseridbytes = Encoding.UTF8.GetBytes(UserID);
byte[] tmpregdtbytes = BitConverter.GetBytes(RegistrationDateTime);
byte[] tmpregdtstrbytes = Encoding.UTF8.GetBytes(RegistrationDateTimeStr);
byte[] tmpdevcountbytes = BitConverter.GetBytes(DeviceCountLimit);
byte[] tmpendpointbytes = Encoding.UTF8.GetBytes(ServerEndPoint);
byte[] tmpbytes = new byte[tmpuseridbytes.Length + tmpregdtbytes.Length + tmpregdtstrbytes.Length + tmpdevcountbytes.Length + tmpendpointbytes.Length];
Array.Copy(tmpuseridbytes, tmpbytes, tmpuseridbytes.Length);
Array.Copy(tmpregdtbytes, 0, tmpbytes, tmpuseridbytes.Length, tmpregdtbytes.Length);
Array.Copy(tmpregdtstrbytes, 0, tmpbytes, tmpuseridbytes.Length + tmpregdtbytes.Length, tmpregdtstrbytes.Length);
Array.Copy(tmpdevcountbytes, 0, tmpbytes, tmpuseridbytes.Length + tmpregdtbytes.Length + tmpregdtstrbytes.Length, tmpdevcountbytes.Length);
Array.Copy(tmpendpointbytes, 0, tmpbytes, tmpuseridbytes.Length + tmpregdtbytes.Length + tmpregdtstrbytes.Length + tmpdevcountbytes.Length, tmpendpointbytes.Length);
string strAlgName = HashAlgorithmNames.Sha512;
HashAlgorithmProvider objAlgProv = HashAlgorithmProvider.OpenAlgorithm(strAlgName);
CryptographicHash objHash = objAlgProv.CreateHash();
objHash.Append(tmpbytes.AsBuffer());
IBuffer tmpbyteshash = objHash.GetValueAndReset();
res = CryptographicEngine.VerifySignatureWithHashInput(ServerPublicKey, tmpbyteshash, SignatureBuffer);
}
catch /*(Exception ex)*/
{
}
return(res);
}
public void createAsymmetricKeyPair(
String strAsymmetricAlgName,
UInt32 keyLength,
out IBuffer buffPublicKey)
{
// Open the algorithm provider for the specified asymmetric algorithm.
AsymmetricKeyAlgorithmProvider objAlgProv = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(strAsymmetricAlgName);
// Demonstrate use of the AlgorithmName property (not necessary to create a key pair).
String strAlgName = objAlgProv.AlgorithmName;
// Create an asymmetric key pair.
CryptographicKey keyPair = objAlgProv.CreateKeyPair(keyLength);
// Export the public key to a buffer for use by others.
buffPublicKey = keyPair.ExportPublicKey();
//public key to internal buffer
DataContainer.senderPublicKey = buffPublicKey;
// You should keep your private key (embedded in the key pair) secure. For
// the purposes of this example, however, we're just copying it into a
// static class variable for later use during decryption.
DataContainer.senderKeyPair = keyPair.Export();
}
public Task <byte[]> RsaDecryptAsync(byte[] data, byte[] privateKey, CryptoHashAlgorithm algorithm)
{
var provider = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(ToAsymmetricAlgorithm(algorithm));
var cryptoKey = provider.ImportKeyPair(privateKey, CryptographicPrivateKeyBlobType.Pkcs8RawPrivateKeyInfo);
return(Task.FromResult(CryptographicEngine.Decrypt(cryptoKey, data)));
}
public static async Task <string> GetEncryptedPassword(string passWord)
{
string base64String;
try
{
//https://secure.bilibili.com/login?act=getkey&rnd=4928
//https://passport.bilibili.com/login?act=getkey&rnd=4928
HttpBaseProtocolFilter httpBaseProtocolFilter = new HttpBaseProtocolFilter();
httpBaseProtocolFilter.IgnorableServerCertificateErrors.Add(Windows.Security.Cryptography.Certificates.ChainValidationResult.Expired);
httpBaseProtocolFilter.IgnorableServerCertificateErrors.Add(Windows.Security.Cryptography.Certificates.ChainValidationResult.Untrusted);
Windows.Web.Http.HttpClient httpClient = new Windows.Web.Http.HttpClient(httpBaseProtocolFilter);
//WebClientClass wc = new WebClientClass();
string stringAsync = await httpClient.GetStringAsync((new Uri("https://passport.bilibili.com/login?act=getkey&rnd=" + new Random().Next(1000, 9999), UriKind.Absolute)));
JObject jObjects = JObject.Parse(stringAsync);
string str = jObjects["hash"].ToString();
string str1 = jObjects["key"].ToString();
string str2 = string.Concat(str, passWord);
string str3 = Regex.Match(str1, "BEGIN PUBLIC KEY-----(?<key>[\\s\\S]+)-----END PUBLIC KEY").Groups["key"].Value.Trim();
byte[] numArray = Convert.FromBase64String(str3);
AsymmetricKeyAlgorithmProvider asymmetricKeyAlgorithmProvider = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1);
CryptographicKey cryptographicKey = asymmetricKeyAlgorithmProvider.ImportPublicKey(WindowsRuntimeBufferExtensions.AsBuffer(numArray), 0);
IBuffer buffer = CryptographicEngine.Encrypt(cryptographicKey, WindowsRuntimeBufferExtensions.AsBuffer(Encoding.UTF8.GetBytes(str2)), null);
base64String = Convert.ToBase64String(WindowsRuntimeBufferExtensions.ToArray(buffer));
}
catch (Exception)
{
//throw;
base64String = passWord;
}
return(base64String);
}
private async Task <string> EncryptedPassword(string passWord)
{
string base64String;
try
{
HttpBaseProtocolFilter httpBaseProtocolFilter = new HttpBaseProtocolFilter();
httpBaseProtocolFilter.IgnorableServerCertificateErrors.Add(Windows.Security.Cryptography.Certificates.ChainValidationResult.Expired);
httpBaseProtocolFilter.IgnorableServerCertificateErrors.Add(Windows.Security.Cryptography.Certificates.ChainValidationResult.Untrusted);
var jObjects = (await accountApi.GetKey().Request()).GetJObject();
string str = jObjects["data"]["hash"].ToString();
string str1 = jObjects["data"]["key"].ToString();
string str2 = string.Concat(str, passWord);
string str3 = Regex.Match(str1, "BEGIN PUBLIC KEY-----(?<key>[\\s\\S]+)-----END PUBLIC KEY").Groups["key"].Value.Trim();
byte[] numArray = Convert.FromBase64String(str3);
AsymmetricKeyAlgorithmProvider asymmetricKeyAlgorithmProvider = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1);
CryptographicKey cryptographicKey = asymmetricKeyAlgorithmProvider.ImportPublicKey(WindowsRuntimeBufferExtensions.AsBuffer(numArray), 0);
IBuffer buffer = CryptographicEngine.Encrypt(cryptographicKey, WindowsRuntimeBufferExtensions.AsBuffer(Encoding.UTF8.GetBytes(str2)), null);
base64String = Convert.ToBase64String(WindowsRuntimeBufferExtensions.ToArray(buffer));
}
catch (Exception)
{
base64String = passWord;
}
return(base64String);
}
private static async Task <string> EncryptedPassword(string passWord)
{
string base64String;
try
{
HttpBaseProtocolFilter httpBaseProtocolFilter = new HttpBaseProtocolFilter();
httpBaseProtocolFilter.IgnorableServerCertificateErrors.Add(Windows.Security.Cryptography.Certificates.ChainValidationResult.Expired);
httpBaseProtocolFilter.IgnorableServerCertificateErrors.Add(Windows.Security.Cryptography.Certificates.ChainValidationResult.Untrusted);
Windows.Web.Http.HttpClient httpClient = new Windows.Web.Http.HttpClient(httpBaseProtocolFilter);
string url = "https://passport.bilibili.com/api/oauth2/getKey";
string content = $"appkey={ApiHelper.AndroidKey.Appkey}&mobi_app=android&platform=android&ts={ApiHelper.GetTimeSpan}";
content += "&sign=" + ApiHelper.GetSign(content);
string stringAsync = await WebClientClass.PostResults(new Uri(url), content);
JObject jObjects = JObject.Parse(stringAsync);
string str = jObjects["data"]["hash"].ToString();
string str1 = jObjects["data"]["key"].ToString();
string str2 = string.Concat(str, passWord);
string str3 = Regex.Match(str1, "BEGIN PUBLIC KEY-----(?<key>[\\s\\S]+)-----END PUBLIC KEY").Groups["key"].Value.Trim();
byte[] numArray = Convert.FromBase64String(str3);
AsymmetricKeyAlgorithmProvider asymmetricKeyAlgorithmProvider = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1);
CryptographicKey cryptographicKey = asymmetricKeyAlgorithmProvider.ImportPublicKey(WindowsRuntimeBufferExtensions.AsBuffer(numArray), 0);
IBuffer buffer = CryptographicEngine.Encrypt(cryptographicKey, WindowsRuntimeBufferExtensions.AsBuffer(Encoding.UTF8.GetBytes(str2)), null);
base64String = Convert.ToBase64String(WindowsRuntimeBufferExtensions.ToArray(buffer));
}
catch (Exception)
{
base64String = passWord;
}
return(base64String);
}
// method to decrypt ciphertext of AES key
public async void asymmetricDecryptAESKeySender(
String strAsymmetricAlgName,
IBuffer buffEncryptedAESKey)
{
// Open the algorithm provider for the specified asymmetric algorithm.
AsymmetricKeyAlgorithmProvider objAsymmAlgProv = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(strAsymmetricAlgName);
CryptographicKey pair = objAsymmAlgProv.ImportKeyPair(DataContainer.senderKeyPair);
try
{
// Use the private key embedded in the key pair to decrypt the session key.
keyMaterialSender = CryptographicEngine.Decrypt(pair, buffEncryptedAESKey, null);
}
catch (System.ArgumentException ar)
{
Debug.WriteLine(ar.ToString());
var dialog = new MessageDialog("Error: Key Mismatch. Unable to display new messages.");
await dialog.ShowAsync();
// CoreApplication.Exit();
}
//convert to string
keyMaterialStringSender = CryptographicBuffer.EncodeToBase64String(keyMaterialSender);
}
public Task <byte[]> RsaExtractPublicKeyAsync(byte[] privateKey)
{
// Have to specify some algorithm
var provider = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithm.RsaOaepSha1);
var cryptoKey = provider.ImportKeyPair(privateKey, CryptographicPrivateKeyBlobType.Pkcs8RawPrivateKeyInfo);
return(Task.FromResult(cryptoKey.ExportPublicKey(CryptographicPublicKeyBlobType.X509SubjectPublicKeyInfo)));
}
public Task <byte[]> RsaEncryptAsync(byte[] data, byte[] publicKey, CryptoHashAlgorithm algorithm)
{
var provider = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(ToAsymmetricAlgorithm(algorithm));
var cryptoKey = provider.ImportPublicKey(publicKey,
CryptographicPublicKeyBlobType.X509SubjectPublicKeyInfo);
return(Task.FromResult(CryptographicEngine.Encrypt(cryptoKey, data)));
}
public bool IsSignatureValid(byte[] publicKey, byte[] data, byte[] signature)
{
string base64ServerKey = @"BgIAAACkAABSU0ExAAQAAAEAAQDZr6InA2zWwmTIQig+hi4AFP1+80cGdVf05OACoSPemuD1MlRhVv0FlNyrEPgEUltGpHLWjJVu+52ofFcZ4vlhA9ud63/GNwF+klu93wGnL7/9B3W1H5Wvdk1PBHKKrFgB5B+ThCpu60zU8+/xyqzZCImdm2OakrhqYo/PfHPgzQ==";
var alg = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaSignPkcs1Sha1);
var key = alg.ImportPublicKey(CryptographicBuffer.DecodeFromBase64String(base64ServerKey));
return(CryptographicEngine.VerifySignature(key, data.AsBuffer(), signature.AsBuffer()));
}
public static byte[] Decrypt(byte[] Data, byte[] PrivateKey)
{
CryptographicKey key = AsymmetricKeyAlgorithmProvider.OpenAlgorithm(AsymmetricAlgorithmNames.RsaPkcs1).ImportKeyPair(PrivateKey.AsBuffer(), CryptographicPrivateKeyBlobType.Capi1PrivateKey);
byte[] PlainData;
CryptographicBuffer.CopyToByteArray(CryptographicEngine.Decrypt(key, Data.AsBuffer(), null), out PlainData);
return(PlainData);
}
