public byte[] ComputeHash(byte[] buffer)
{
_hash.Append(buffer);
var hash = _hash.GetValueAndReset().ToArray();
return(hash);
}
public static void ce()
{
//可以选择MD5 Sha1 Sha256 Sha384 Sha512
string strAlgName = HashAlgorithmNames.Md5;
// 创建一个 HashAlgorithmProvider 对象
HashAlgorithmProvider objAlgProv = HashAlgorithmProvider.OpenAlgorithm(strAlgName);
// 创建一个可重用的CryptographicHash对象
CryptographicHash objHash = objAlgProv.CreateHash();
string strMsg1 = "这是一段待加密的字符串";
IBuffer buffMsg1 = CryptographicBuffer.ConvertStringToBinary(strMsg1, BinaryStringEncoding.Utf16BE);
objHash.Append(buffMsg1);
IBuffer buffHash1 = objHash.GetValueAndReset();
string strHash1 = CryptographicBuffer.EncodeToBase64String(buffHash1);
string strMsg2 = "和前面一串不相同的字符串";
IBuffer buffMsg2 = CryptographicBuffer.ConvertStringToBinary(strMsg2, BinaryStringEncoding.Utf16BE);
objHash.Append(buffMsg2);
IBuffer buffHash2 = objHash.GetValueAndReset();
string strHash2 = CryptographicBuffer.EncodeToBase64String(buffHash2);
string strMsg3 = "每个都不相同";
IBuffer buffMsg3 = CryptographicBuffer.ConvertStringToBinary(strMsg3, BinaryStringEncoding.Utf16BE);
objHash.Append(buffMsg3);
IBuffer buffHash3 = objHash.GetValueAndReset();
string strHash3 = CryptographicBuffer.EncodeToBase64String(buffHash3);
}
public string Hash(string str)
{
var _buffer = CryptographicBuffer.ConvertStringToBinary(str, BinaryStringEncoding.Utf8);
hashobj.Append(_buffer);
var _resbuffer = hashobj.GetValueAndReset();
return(CryptographicBuffer.EncodeToBase64String(_resbuffer));
}
public byte[] ComputeHash(byte[] buffer)
{
IBuffer inputBuffer = CryptographicBuffer.CreateFromByteArray(buffer);
_hash.Append(inputBuffer);
var hash = _hash.GetValueAndReset().ToArray();
return(hash);
}
// Appends a given number of bytes to the hash
private static void Append(CryptographicHash hash, int bytesRead, byte[] buffer)
{
if (bytesRead == buffer.Length)
{
// append the whole buffer
hash.Append(buffer);
}
else
{
// only a part of the buffer should be appended, so need a smaller buffer
var partialBuffer = new byte[bytesRead];
Array.Copy(buffer, partialBuffer, bytesRead);
hash.Append(partialBuffer);
}
}
public static string Decrypt(this string str)
{
if (string.IsNullOrWhiteSpace(str))
{
return("");
}
var key = StringWithAES.GetHardwareId().Remove(32);
SymmetricKeyAlgorithmProvider SAP = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesEcbPkcs7);
CryptographicKey AES;
HashAlgorithmProvider HAP = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Md5);
CryptographicHash Hash_AES = HAP.CreateHash();
var hash = new byte[32];
Hash_AES.Append(CryptographicBuffer.CreateFromByteArray(System.Text.Encoding.UTF8.GetBytes(key)));
byte[] temp;
CryptographicBuffer.CopyToByteArray(Hash_AES.GetValueAndReset(), out temp);
Array.Copy(temp, 0, hash, 0, 16);
Array.Copy(temp, 0, hash, 15, 16);
AES = SAP.CreateSymmetricKey(CryptographicBuffer.CreateFromByteArray(hash));
IBuffer Buffer = CryptographicBuffer.DecodeFromBase64String(str);
byte[] Decrypted;
CryptographicBuffer.CopyToByteArray(CryptographicEngine.Decrypt(AES, Buffer, null), out Decrypted);
return(System.Text.Encoding.UTF8.GetString(Decrypted, 0, Decrypted.Length));
}
public static string Encrypt(string data, string publicKey)
{
//byte[] publicKeyBytes = Convert.FromBase64String(publicKey);
byte[] keyBytes = Encoding.UTF8.GetBytes(publicKey);
byte[] dataBytes = Encoding.UTF8.GetBytes(data);
var algorithm = WinRTCrypto.MacAlgorithmProvider.OpenAlgorithm(MacAlgorithm.HmacSha1);
CryptographicHash hasher = algorithm.CreateHash(keyBytes);
hasher.Append(dataBytes);
byte[] mac = hasher.GetValueAndReset();
StringBuilder sBuilder = new StringBuilder();
for (int i = 0; i < mac.Length; i++)
{
sBuilder.Append(mac[i].ToString("X2"));
}
return(sBuilder.ToString().ToLower());
//You can then easily import the key parameters into RSACryptoServiceProvider:
//RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
//rsa.ImportParameters(rsaParameters);
////Finally, do your encryption:
//byte[] dataToEncrypt = Encoding.UTF8.GetBytes(data);
//// Sign data with Pkcs1
//byte[] encryptedData = rsa.Encrypt(dataToEncrypt, false);
//// Convert Bytes to Hash
//var hash = Convert.ToBase64String(encryptedData);
//return hash;
}
public static string AES_Encrypt(string input, string pass)
{
if (string.IsNullOrEmpty(input))
{
return(null);
}
SymmetricKeyAlgorithmProvider SAP = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesEcbPkcs7);
CryptographicKey AES;
HashAlgorithmProvider HAP = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Md5);
CryptographicHash Hash_AES = HAP.CreateHash();
string encrypted = string.Empty;
try
{
byte[] hash = new byte[32];
Hash_AES.Append(CryptographicBuffer.CreateFromByteArray(System.Text.Encoding.UTF8.GetBytes(pass)));
byte[] temp;
CryptographicBuffer.CopyToByteArray(Hash_AES.GetValueAndReset(), out temp);
Array.Copy(temp, 0, hash, 0, 16);
Array.Copy(temp, 0, hash, 15, 16);
AES = SAP.CreateSymmetricKey(CryptographicBuffer.CreateFromByteArray(hash));
IBuffer Buffer = CryptographicBuffer.CreateFromByteArray(System.Text.Encoding.UTF8.GetBytes(input));
encrypted = CryptographicBuffer.EncodeToBase64String(CryptographicEngine.Encrypt(AES, Buffer, null));
return(encrypted);
}
catch
{
throw new T360Exception(T360ErrorCodes.EncryptionFailed);
}
}
public static string AES_Ecrypt(string input, string pass)
{
GenerateIV();
SymmetricKeyAlgorithmProvider SAP = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesCbcPkcs7);
CryptographicKey AES;
//Key
HashAlgorithmProvider HAP = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Md5);
CryptographicHash Hash_AES = HAP.CreateHash();
string encrypted = "";
try
{
byte[] hash = new byte[32];
Hash_AES.Append(CryptographicBuffer.CreateFromByteArray(System.Text.Encoding.UTF8.GetBytes(pass)));
//pass->key
byte[] temp;
CryptographicBuffer.CopyToByteArray(Hash_AES.GetValueAndReset(), out temp);
Array.Copy(temp, 0, hash, 0, 16);
Array.Copy(temp, 0, hash, 16, 16);
//totally 32 bits,16 bits once,temp-> hash
AES = SAP.CreateSymmetricKey(CryptographicBuffer.CreateFromByteArray(hash));
IBuffer Buffer = CryptographicBuffer.CreateFromByteArray(System.Text.Encoding.UTF8.GetBytes(input));
encrypted = CryptographicBuffer.EncodeToBase64String(CryptographicEngine.Encrypt(AES, Buffer, IV));
//key,data,Initialization vector
return(encrypted + "!" + CryptographicBuffer.EncodeToBase64String(IV));
//line break
}
catch (Exception ex)
{
return(null);
}
}
/// <summary>
/// Parse and save the user related data sent by the Netsoul server.
/// </summary>
/// <param name="buffer">Data to parse received from the server</param>
private async void ConnectionInfoParsing(string buffer)
{
#if NETFX_CORE
string[] parsing = buffer.Split(' ');
this.ClientSocket = parsing[1];
this.RandomMD5 = parsing[2];
this.ClientIp = parsing[3];
this.ClientPort = parsing[4];
this.TimeStamp = parsing[5];
HashAlgorithmProvider md5 = HashAlgorithmProvider.OpenAlgorithm("MD5");
CryptographicHash Hasher = md5.CreateHash();
IBuffer bufferMessage = CryptographicBuffer.ConvertStringToBinary(this.RandomMD5
+ "-" + this.ClientIp + "/" + this.ClientPort.ToString()
+ this.UserPassword, BinaryStringEncoding.Utf8);
Hasher.Append(bufferMessage);
IBuffer NewMD5Buffer = Hasher.GetValueAndReset();
this.NewMD5 = CryptographicBuffer.EncodeToHexString(NewMD5Buffer);
this.NewMD5 = this.NewMD5.ToLower();
this.StreamWriter.WriteString("auth_ag ext_user none none\n");
this.Verif.Add(">>> " + "auth_ag ext_user none none\n");
await this.StreamWriter.StoreAsync();
#endif
}
/// <summary>
/// Derives the base key used by <see cref="HmacBlockHandler"/> given
/// a database's master seed and the user's composite key.
///
/// The derived key is a SHA-512 hash of the result of concatenating
/// these values together, with the byte 0x1 appended at the end.
/// </summary>
/// <param name="compositeKey">The user's composite key.</param>
/// <param name="masterSeed">The database's master seed.</param>
/// <returns>A buffer to use for an HMAC block key.</returns>
public static IBuffer DeriveHmacKey(IBuffer compositeKey, IBuffer masterSeed)
{
if (compositeKey == null)
{
throw new ArgumentNullException(nameof(compositeKey));
}
if (masterSeed == null)
{
throw new ArgumentNullException(nameof(masterSeed));
}
if (compositeKey.Length != 32)
{
throw new ArgumentException("Composite key should be 32 bytes", nameof(compositeKey));
}
if (masterSeed.Length != 32)
{
throw new ArgumentException("Master seed should be 32 bytes", nameof(masterSeed));
}
byte[] buffer = new byte[compositeKey.Length + masterSeed.Length + 1];
masterSeed.CopyTo(buffer);
compositeKey.CopyTo(0, buffer, (int)masterSeed.Length, (int)compositeKey.Length);
buffer[buffer.Length - 1] = 1;
HashAlgorithmProvider sha512 = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Sha512);
CryptographicHash hash = sha512.CreateHash();
hash.Append(buffer.AsBuffer());
return(hash.GetValueAndReset());
}
private string MakeSignature(string basestring)
{
// Encrypt with either SHA1 or SHA256, creating the Signature
byte[] keyBytes = Encoding.UTF8.GetBytes(this.oauth_consumer_secret + "&");
byte[] dataBytes = Encoding.UTF8.GetBytes(basestring);
MacAlgorithm a = oauth_signature_method == "HMAC-SHA1" ? MacAlgorithm.HmacSha1 : MacAlgorithm.HmacSha256;
var algorithm = WinRTCrypto.MacAlgorithmProvider.OpenAlgorithm(a);
CryptographicHash hasher = algorithm.CreateHash(keyBytes);
hasher.Append(dataBytes);
byte[] mac = hasher.GetValueAndReset();
string hmacsha1 = BitConverter.ToString(mac).Replace("-", "").ToLower();
byte[] resultantArray = new byte[hmacsha1.Length / 2];
for (int i = 0; i < resultantArray.Length; i++)
{
resultantArray[i] = Convert.ToByte(hmacsha1.Substring(i * 2, 2), 16);
}
string base64 = Convert.ToBase64String(resultantArray);
string result = WebUtility.UrlEncode(base64);
return(result);
}
/// <summary>
/// SignRequest
/// </summary>
/// <param name="request"></param>
/// <param name="body"></param>
/// <returns></returns>
public string SignRequest(System.Net.HttpWebRequest request, byte[] body)
{
Uri u = request.RequestUri;
var algorithm = MacAlgorithmProvider.OpenAlgorithm(MacAlgorithm.HmacSha1);
CryptographicHash hasher = algorithm.CreateHash(secretKey);
hasher.Append(body);
byte[] mac = hasher.GetValueAndReset();
string macBase64 = Convert.ToBase64String(mac);
string pathAndQuery = request.RequestUri.PathAndQuery;
byte[] pathAndQueryBytes = Config.Encoding.GetBytes(pathAndQuery);
using (MemoryStream buffer = new MemoryStream())
{
buffer.Write(pathAndQueryBytes, 0, pathAndQueryBytes.Length);
buffer.WriteByte((byte)'\n');
if (body.Length > 0)
{
buffer.Write(body, 0, body.Length);
}
hasher.Dispose();
return(this.accessKey + ":" + macBase64);
}
}
public static async Task <string> track_love(MusicProperties id3)
{
try
{
string scrb_track_sig = "api_key" + Globalv.lfm_api_key + "artist" + id3.Artist + "methodtrack.love" + "sk" + Globalv.session_key + "track" + id3.Title + "0e6e780c3cfa3faedf0c58d5aa6de92f";
//UTF8Encoding utf8e = new System.Text.UTF8Encoding();
//scrb_track_sig = utf8e.GetString(utf8e.GetBytes(scrb_track_sig));
HashAlgorithmProvider objAlgProv = HashAlgorithmProvider.OpenAlgorithm("MD5");
CryptographicHash objHash = objAlgProv.CreateHash();
IBuffer buffSig = CryptographicBuffer.ConvertStringToBinary(scrb_track_sig, BinaryStringEncoding.Utf8);
objHash.Append(buffSig);
IBuffer buffSighash = objHash.GetValueAndReset();
scrb_track_sig = CryptographicBuffer.EncodeToHexString(buffSighash);
HttpClient cli = new HttpClient();
cli.DefaultRequestHeaders.ExpectContinue = false; //important
string track_love = @"method=track.love&track=" + id3.Title + @"&artist=" + id3.Artist + @"&api_key=" + Globalv.lfm_api_key + @"&api_sig=" + scrb_track_sig + @"&sk=" + Globalv.session_key;
cli.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/x-www-form-urlencoded"));
HttpContent tscr = new StringContent(track_love);
tscr.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/x-www-form-urlencoded");
var loved_resp = await cli.PostAsync(new Uri("http://ws.audioscrobbler.com/2.0", UriKind.Absolute), tscr);
return(await loved_resp.Content.ReadAsStringAsync());
}
catch (Exception) { return(null); }
}
public static async void track_updateNowPlaying(MusicProperties id3)
{
//try
//{
string updtrack_sig = "album" + id3.Album + "api_key" + Globalv.lfm_api_key + "artist" + id3.Artist + "methodtrack.updateNowPlaying" + "sk" + Globalv.session_key + "track" + id3.Title + "0e6e780c3cfa3faedf0c58d5aa6de92f";
HashAlgorithmProvider objAlgProv = HashAlgorithmProvider.OpenAlgorithm("MD5");
CryptographicHash objHash = objAlgProv.CreateHash();
IBuffer buffSig = CryptographicBuffer.ConvertStringToBinary(updtrack_sig, BinaryStringEncoding.Utf8);
objHash.Append(buffSig);
IBuffer buffSighash = objHash.GetValueAndReset();
updtrack_sig = CryptographicBuffer.EncodeToHexString(buffSighash);
HttpClient cli = new HttpClient();
cli.DefaultRequestHeaders.ExpectContinue = false; //important
string track_updateNowPlaying = @"method=track.updateNowPlaying&track=" + id3.Title + @"&artist=" + id3.Artist + @"&album=" + id3.Album + @"&api_key=" + Globalv.lfm_api_key + @"&api_sig=" + updtrack_sig + @"&sk=" + Globalv.session_key;
cli.DefaultRequestHeaders.Accept.Add(new System.Net.Http.Headers.MediaTypeWithQualityHeaderValue("application/x-www-form-urlencoded"));
HttpContent tunp = new StringContent(track_updateNowPlaying);
tunp.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/x-www-form-urlencoded");
var upd_now_playing = await cli.PostAsync(new Uri("http://ws.audioscrobbler.com/2.0", UriKind.Absolute), tunp);
//}
// catch (Exception) { };
}
public int dbEncrypt(String partition, int size, String data, out String dataOut)
{
SymmetricKeyAlgorithmProvider SAP = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesEcbPkcs7);
CryptographicKey AES;
HashAlgorithmProvider HAP = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Md5);
CryptographicHash Hash_AES = HAP.CreateHash();
try{
byte[] hash = new byte[32];
Hash_AES.Append(CryptographicBuffer.CreateFromByteArray(System.Text.Encoding.UTF8.GetBytes(partition)));
byte[] temp;
CryptographicBuffer.CopyToByteArray(Hash_AES.GetValueAndReset(), out temp);
Array.Copy(temp, 0, hash, 0, 16);
Array.Copy(temp, 0, hash, 15, 16);
AES = SAP.CreateSymmetricKey(CryptographicBuffer.CreateFromByteArray(hash));
Windows.Storage.Streams.IBuffer Buffer = CryptographicBuffer.DecodeFromBase64String(data);
byte[] Decrypted;
CryptographicBuffer.CopyToByteArray(CryptographicEngine.Decrypt(AES, Buffer, null), out Decrypted);
dataOut = System.Text.Encoding.UTF8.GetString(Decrypted, 0, Decrypted.Length);
}
catch (Exception ex)
{
dataOut = "";
return(getErrorCode() == 0 ? 1 : 0);
}
return(getErrorCode() == 0 ? 1 : 0);
}
public static byte[] AES_Decrypt(byte[] input, byte[] pass)
{
SymmetricKeyAlgorithmProvider SAP = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesEcbPkcs7);
CryptographicKey AES;
HashAlgorithmProvider HAP = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Md5);
CryptographicHash Hash_AES = HAP.CreateHash();
//string decrypted = "";
//try
//{
byte[] hash = new byte[32];
Hash_AES.Append(CryptographicBuffer.CreateFromByteArray(pass));
byte[] temp;
CryptographicBuffer.CopyToByteArray(Hash_AES.GetValueAndReset(), out temp);
Array.Copy(temp, 0, hash, 0, 16); //key1
Array.Copy(temp, 0, hash, 15, 16); //key2
AES = SAP.CreateSymmetricKey(CryptographicBuffer.CreateFromByteArray(hash));
//IBuffer Buffer = CryptographicBuffer.DecodeFromBase64String(input);
IBuffer Buffer = CryptographicBuffer.CreateFromByteArray(input);
byte[] Decrypted;
CryptographicBuffer.CopyToByteArray(CryptographicEngine.Decrypt(AES, Buffer, null), out Decrypted);
//decrypted = System.Text.Encoding.UTF8.GetString(Decrypted, 0, Decrypted.Length);
return(Decrypted);
//}
//catch (Exception ex)
//{
// return null;
//}
}
public static string AES_Decrypt(String EncryptedText, String DecryptionKey)
{
string decrypted = "";
SymmetricKeyAlgorithmProvider SAP = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesCbcPkcs7);
HashAlgorithmProvider HAP = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Md5);
CryptographicHash Hash_AES = HAP.CreateHash();
try
{
//byte[] KeyBytes = System.Text.Encoding.UTF8.GetBytes(password);
byte[] KeyBytes16 = new byte[16];
Hash_AES.Append(CryptographicBuffer.CreateFromByteArray(System.Text.Encoding.UTF8.GetBytes(DecryptionKey)));
byte[] KeyBytes;
CryptographicBuffer.CopyToByteArray(Hash_AES.GetValueAndReset(), out KeyBytes);
for (int i = 0; i < KeyBytes.Length; i++)
{
KeyBytes16[i] = KeyBytes[i];
}
CryptographicKey key = SAP.CreateSymmetricKey(CryptographicBuffer.CreateFromByteArray(KeyBytes16));
IBuffer Buffer = CryptographicBuffer.DecodeFromBase64String(EncryptedText);
byte[] Decrypted;
CryptographicBuffer.CopyToByteArray(CryptographicEngine.Decrypt(key, Buffer, null), out Decrypted);
decrypted = System.Text.Encoding.UTF8.GetString(Decrypted, 0, Decrypted.Length);
return(decrypted);
}
catch (Exception ex)
{
Debug.WriteLine(ex.ToString());
return("Error in Decryption:With Aes ");
}
}
internal static string DecryptThisCipher(string input, string pass)
{
SymmetricKeyAlgorithmProvider SAP = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesEcbPkcs7);
CryptographicKey AES;
HashAlgorithmProvider HAP = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Md5);
CryptographicHash Hash_AES = HAP.CreateHash();
string decrypted = "";
try
{
byte[] hash = new byte[32];
Hash_AES.Append(CryptographicBuffer.CreateFromByteArray(Encoding.UTF8.GetBytes(pass)));
byte[] temp;
CryptographicBuffer.CopyToByteArray(Hash_AES.GetValueAndReset(), out temp);
Array.Copy(temp, 0, hash, 0, 16);
Array.Copy(temp, 0, hash, 15, 16);
AES = SAP.CreateSymmetricKey(CryptographicBuffer.CreateFromByteArray(hash));
IBuffer Buffer = CryptographicBuffer.DecodeFromBase64String(input);
byte[] Decrypted;
CryptographicBuffer.CopyToByteArray(CryptographicEngine.Decrypt(AES, Buffer, null), out Decrypted);
decrypted = Encoding.UTF8.GetString(Decrypted, 0, Decrypted.Length);
return(decrypted);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
return(null);
}
}
/// <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);
}
private static string GetHash(Stream input, string algName)
{
// Create a HashAlgorithmProvider object.
HashAlgorithmProvider objAlgProv = HashAlgorithmProvider.OpenAlgorithm(algName);
CryptographicHash cryptoHash = objAlgProv.CreateHash();
using ( input )
{
byte[] b = new byte[2048];
int r;
while ((r = input.Read(b, 0, b.Length)) > 0)
{
cryptoHash.Append(b.AsBuffer(0, r));
}
}
// Hash the message.
IBuffer buffHash = cryptoHash.GetValueAndReset();
// Convert the hash to a string (for display).
string strHashBase64 = CryptographicBuffer.EncodeToHexString(buffHash);
// Return the encoded string
return(strHashBase64);
}
public static string GetHashedValue(string plainText)
{
// Create a HashAlgorithmProvider object.
HashAlgorithmProvider objAlgProv = HashAlgorithmProvider.OpenAlgorithm("SHA1");
// Create a CryptographicHash object. This object can be reused to continually
// hash new messages.
CryptographicHash objHash = objAlgProv.CreateHash();
// Hash message 1.
IBuffer buffMsg1 = CryptographicBuffer.ConvertStringToBinary(plainText, BinaryStringEncoding.Utf8);
objHash.Append(buffMsg1);
IBuffer buffHash1 = objHash.GetValueAndReset();
byte[] bytes = null; //new byte[buffHash1.Length];
CryptographicBuffer.CopyToByteArray(buffHash1, out bytes);
var data = new StringBuilder((int)bytes.Length * 2);
for (var i = 0; i < bytes.Length; ++i)
{
data.Append(bytes[i].ToString("x2"));
}
return(data.ToString());
//return CryptographicBuffer.EncodeToBase64String(buffHash1);
}
public static string AES_Decrypt(string input, string pass)
{
SymmetricKeyAlgorithmProvider sap = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesEcbPkcs7);
CryptographicKey aes;
HashAlgorithmProvider hap = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Md5);
CryptographicHash hash_AES = hap.CreateHash();
string decrypted = "";
try
{
byte[] hash = new byte[32];
hash_AES.Append(CryptographicBuffer.CreateFromByteArray(System.Text.Encoding.UTF8.GetBytes(pass)));
byte[] temp;
CryptographicBuffer.CopyToByteArray(hash_AES.GetValueAndReset(), out temp);
Array.Copy(temp, 0, hash, 0, 16);
Array.Copy(temp, 0, hash, 15, 16);
aes = sap.CreateSymmetricKey(CryptographicBuffer.CreateFromByteArray(hash));
IBuffer Buffer = CryptographicBuffer.DecodeFromBase64String(input);
byte[] Decrypted;
CryptographicBuffer.CopyToByteArray(CryptographicEngine.Decrypt(aes, Buffer, null), out Decrypted);
decrypted = Encoding.UTF8.GetString(Decrypted, 0, Decrypted.Length);
return(decrypted);
}
catch
{
return(null);
}
}
/// <summary>
/// This is the click handler for the 'RunSample' button. It is responsible for executing the sample code.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void RunSample_Click(object sender, RoutedEventArgs e)
{
Scenario2Text.Text = "";
String algName = AlgorithmNames.SelectionBoxItem.ToString();
// Create a HashAlgorithmProvider object.
HashAlgorithmProvider Algorithm = HashAlgorithmProvider.OpenAlgorithm(algName);
IBuffer vector = CryptographicBuffer.DecodeFromBase64String("uiwyeroiugfyqcajkds897945234==");
Scenario2Text.Text += "\n*** Sample Hash Algorithm: " + Algorithm.AlgorithmName + "\n";
Scenario2Text.Text += " Initial vector: uiwyeroiugfyqcajkds897945234==\n";
// Compute the hash in one call.
IBuffer digest = Algorithm.HashData(vector);
if (digest.Length != Algorithm.HashLength)
{
Scenario2Text.Text += "HashAlgorithmProvider failed to generate a hash of proper length!\n";
return;
}
Scenario2Text.Text += " Hash: " + CryptographicBuffer.EncodeToHexString(digest) + "\n";
// Use a reusable hash object to hash the data by using multiple calls.
CryptographicHash reusableHash = Algorithm.CreateHash();
reusableHash.Append(vector);
// Note that calling GetValue resets the data that has been appended to the
// CryptographicHash object.
IBuffer digest2 = reusableHash.GetValueAndReset();
if (!CryptographicBuffer.Compare(digest, digest2))
{
Scenario2Text.Text += "CryptographicHash failed to generate the same hash data!\n";
return;
}
reusableHash.Append(vector);
digest2 = reusableHash.GetValueAndReset();
if (!CryptographicBuffer.Compare(digest, digest2))
{
Scenario2Text.Text += "Reusable CryptographicHash failed to generate the same hash data!\n";
return;
}
}
private BEncodedString GetToken(Node node, byte[] s)
{
//refresh secret needed
if (_lastSecretGeneration.Add(Timeout) < DateTime.UtcNow)
{
_lastSecretGeneration = DateTime.UtcNow;
_secret.CopyTo(_previousSecret, 0);
_secret = CryptographicBuffer.GenerateRandom((uint)_secret.Length).ToArray();
}
var n = node.CompactPort().TextBytes;
_hash.Append(n.AsBuffer());
_hash.Append(s.AsBuffer());
return(_hash.GetValueAndReset().ToArray());
}
public static string GetMD5(string inputString)
{
CryptographicHash objHash = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Md5).CreateHash();
objHash.Append(CryptographicBuffer.ConvertStringToBinary(inputString, BinaryStringEncoding.Utf8));
Windows.Storage.Streams.IBuffer buffHash1 = objHash.GetValueAndReset();
return(CryptographicBuffer.EncodeToHexString(buffHash1));
}
/// <summary>
/// Asynchronously transforms the user's 32-byte key using ECB AES.
///
/// Since Rijndael works on 16-byte blocks, the k is split in half and
/// each half is encrypted separately the same number of times.
/// </summary>
/// <param name="rawKey">The key to transform.</param>
/// <param name="token">Token used to cancel the transform task.</param>
/// <returns>The transformed key.</returns>
public async Task <IBuffer> TransformKeyAsync(IBuffer rawKey, CancellationToken token)
{
if (rawKey == null)
{
throw new ArgumentNullException(nameof(rawKey));
}
if (rawKey.Length != 32)
{
throw new ArgumentException("Key must be 32 bytes", nameof(rawKey));
}
// Split the k buffer in half
byte[] rawKeyBytes = rawKey.ToArray();
IBuffer lowerBuffer = WindowsRuntimeBuffer.Create(rawKeyBytes, 0, 16, 16);
IBuffer upperBuffer = WindowsRuntimeBuffer.Create(rawKeyBytes, 16, 16, 16);
// Set up the encryption parameters
var aes = SymmetricKeyAlgorithmProvider.OpenAlgorithm(SymmetricAlgorithmNames.AesEcb);
CryptographicKey key = aes.CreateSymmetricKey(this.algoParams.Seed);
IBuffer iv = null;
// Run the encryption rounds in two threads (upper and lower)
ConditionChecker checkForCancel = () => token.IsCancellationRequested;
Task <bool> lowerTask = Task.Run(() =>
{
lowerBuffer = KeePassHelper.TransformKey(this.algoParams.Rounds, this.algoParams.Seed, iv, lowerBuffer, checkForCancel);
return(!checkForCancel());
}
);
Task <bool> upperTask = Task.Run(() =>
{
upperBuffer = KeePassHelper.TransformKey(this.algoParams.Rounds, this.algoParams.Seed, iv, upperBuffer, checkForCancel);
return(!checkForCancel());
}
);
// Verify the work was completed successfully
await Task.WhenAll(lowerTask, upperTask);
if (!(lowerTask.Result && upperTask.Result))
{
return(null);
}
// Copy the units of work back into one buffer, hash it, and return.
IBuffer transformedKey = (new byte[32]).AsBuffer();
lowerBuffer.CopyTo(0, transformedKey, 0, 16);
upperBuffer.CopyTo(0, transformedKey, 16, 16);
var sha256 = HashAlgorithmProvider.OpenAlgorithm(HashAlgorithmNames.Sha256);
CryptographicHash hash = sha256.CreateHash();
hash.Append(transformedKey);
return(hash.GetValueAndReset());
}
public static byte[] hash_hmacSha1(byte[] dataBytes, byte[] keyBytes)
{
var algorithm = WinRTCrypto.MacAlgorithmProvider.OpenAlgorithm(MacAlgorithm.HmacSha1);
CryptographicHash hasher = algorithm.CreateHash(keyBytes);
hasher.Append(dataBytes);
byte[] mac = hasher.GetValueAndReset();
return(mac);
}
public async Task BlockBlobWriteStreamBasicTestAsync()
{
byte[] buffer = GetRandomBuffer(3 * 1024 * 1024);
CryptographicHash hasher = HashAlgorithmProvider.OpenAlgorithm("MD5").CreateHash();
CloudBlobClient blobClient = GenerateCloudBlobClient();
blobClient.DefaultRequestOptions.ParallelOperationThreadCount = 2;
string name = GetRandomContainerName();
CloudBlobContainer container = blobClient.GetContainerReference(name);
try
{
await container.CreateAsync();
CloudBlockBlob blob = container.GetBlockBlobReference("blob1");
using (MemoryStream wholeBlob = new MemoryStream())
{
BlobRequestOptions options = new BlobRequestOptions()
{
StoreBlobContentMD5 = true,
};
using (IOutputStream writeStream = await blob.OpenWriteAsync(null, options, null))
{
Stream blobStream = writeStream.AsStreamForWrite();
for (int i = 0; i < 3; i++)
{
await blobStream.WriteAsync(buffer, 0, buffer.Length);
await wholeBlob.WriteAsync(buffer, 0, buffer.Length);
Assert.AreEqual(wholeBlob.Position, blobStream.Position);
hasher.Append(buffer.AsBuffer());
}
await blobStream.FlushAsync();
}
string md5 = CryptographicBuffer.EncodeToBase64String(hasher.GetValueAndReset());
await blob.FetchAttributesAsync();
Assert.AreEqual(md5, blob.Properties.ContentMD5);
using (MemoryOutputStream downloadedBlob = new MemoryOutputStream())
{
await blob.DownloadToStreamAsync(downloadedBlob);
TestHelper.AssertStreamsAreEqual(wholeBlob, downloadedBlob.UnderlyingStream);
}
}
}
finally
{
container.DeleteAsync().AsTask().Wait();
}
}
void HashCore (byte[] block, int offset, int size)
{
var array = new byte[size];
Buffer.BlockCopy (block, offset, array, 0, size);
var buffer = CryptographicBuffer.CreateFromByteArray (array);
hash.Append (buffer);
}