public static string hash_hmac(string signatureString, string secretKey)
{
HMACSHA1 hmac = new HMACSHA1(Encoding.UTF8.GetBytes(secretKey));
byte[] buffer = Encoding.UTF8.GetBytes(signatureString);
string result = BitConverter.ToString(hmac.ComputeHash(buffer)).Replace("-", "").ToLower();
return Convert.ToBase64String(Encoding.UTF8.GetBytes(result));
}
public static string GenerateUrlToken(string controllerName, string actionName, RouteValueDictionary argumentParams, string password)
{
//// The URL hash is dynamic by assign a dynamic key in each session. So
//// eventhough your URL is stolen, it will not work in other session
if (HttpContext.Current.Session["url_dynamickey"] == null)
{
HttpContext.Current.Session["url_dynamickey"] = RandomString();
}
// The salt include the dynamic session key and valid for an hour.
var salt = HttpContext.Current.Session["url_dynamickey"] + DateTime.Now.ToShortDateString() + " " + DateTime.Now.Hour;
// generating the partial url
var stringToToken = controllerName + "/" + actionName + "/";
stringToToken = argumentParams.Where(item => item.Key != "controller" && item.Key != "action" && item.Key != "urltoken").Aggregate(stringToToken, (current, item) => current + (item.Value));
// Converting the salt in to a byte array
var saltValueBytes = System.Text.Encoding.ASCII.GetBytes(salt);
// Encrypt the salt bytes with the password
var key = new Rfc2898DeriveBytes(password, saltValueBytes);
// get the key bytes from the above process
var secretKey = key.GetBytes(16);
// generate the hash
var tokenHash = new HMACSHA1(secretKey);
tokenHash.ComputeHash(System.Text.Encoding.ASCII.GetBytes(stringToToken));
// convert the hash to a base64string
var token = Convert.ToBase64String(tokenHash.Hash).Replace("/", "_");
return token;
}
private static string SignData(string to_sign)
{
using (var signature = new HMACSHA1(key: Encoding.UTF8.GetBytes("<<YOUR_AWS_SECRET_KEY>>")))
{
var bytes = Encoding.UTF8.GetBytes(to_sign);
var hash = signature.ComputeHash(bytes);
return Convert.ToBase64String(hash);
}
}
public string GenerateHeader (string url, string method)
{
ResetNew();
// create a signature
var parameters = (from p in params_
where !except_parameters.Contains(p.Key)
orderby p.Key, p.Value
select p);
string param_string = "";
foreach (var item in parameters)
{
if (param_string.Length > 0)
param_string += "&";
param_string += string.Format("{0}={1}",
UrlEncode(item.Key), UrlEncode(item.Value));
}
string base_string = string.Format("{0}&{1}&{2}",
UrlEncode(method), UrlEncode(url),
UrlEncode(param_string));
string key_string = string.Format("{0}&{1}",
UrlEncode(params_[kOAuthConsumerSecret]),
UrlEncode(params_[kOAuthTokenSecret]));
HMACSHA1 hmacsha1 = new HMACSHA1(Encoding.UTF8.GetBytes(key_string));
byte[] bytes = hmacsha1.ComputeHash(Encoding.UTF8.GetBytes(base_string));
string signature = Convert.ToBase64String(bytes);
// oauth string
parameters = from p in params_
where oauth_parameters.Contains(p.Key)
orderby p.Key, UrlEncode(p.Value)
select p;
string header = "OAuth ";
foreach (var item in parameters)
{
if (item.Key == kOAuthVersion)
header += string.Format("{0}=\"{1}\"", item.Key, item.Value);
else
header += string.Format("{0}=\"{1}\",", item.Key, item.Value);
if (item.Key == kOAuthNonce)
header += string.Format("{0}=\"{1}\",", kOAuthSignature, UrlEncode(signature));
}
return header;
}
private string getHMAC(string signatureString, string secretKey)
{
System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
byte[] keyByte = encoding.GetBytes(secretKey);
HMACSHA1 hmac = new HMACSHA1(keyByte);
byte[] messageBytes = encoding.GetBytes(signatureString);
byte[] hashmessage = hmac.ComputeHash(messageBytes);
return ByteArrayToHexString(hashmessage);
}
public virtual void onButtonClick(object sender, EventArgs e) {
// The HMAC secret as configured in the skin
string hmacSecret = "TheHM4C$ecretF0rTheSk1n";
// Generate the signing string
string signingString = paymentAmount.Text + currencyCode.Text + shipBeforeDate.Text
+ merchantReference.Text + skinCode.Text + merchantAccount.Text
+ sessionValidity.Text + shopperEmail.Text;
// Values are always transferred using UTF-8 encoding
System.Text.UTF8Encoding encoding=new System.Text.UTF8Encoding();
// Calculate the HMAC
HMACSHA1 myhmacsha1 = new HMACSHA1(encoding.GetBytes(hmacSecret));
merchantSig.Text = System.Convert.ToBase64String(myhmacsha1.ComputeHash(encoding.GetBytes(signingString)));
myhmacsha1.Clear();
// Ready to pay
button1.Text = "Pay";
}
public void HmacSha1_Byte_Constructors()
{
byte[] key = (byte[])s_testKeys2202[1].Clone();
string digest = "b617318655057264e28bc0b6fb378c8ef146be00";
using (HMACSHA1 h1 = new HMACSHA1(key))
{
VerifyHmac_KeyAlreadySet(h1, 1, digest);
#if netstandard17
using (HMACSHA1 h2 = new HMACSHA1(key, true))
{
VerifyHmac_KeyAlreadySet(h2, 1, digest);
Assert.Equal(h1.Key, h2.Key);
}
using (HMACSHA1 h2 = new HMACSHA1(key, false))
{
VerifyHmac_KeyAlreadySet(h1, 1, digest);
Assert.Equal(h1.Key, h2.Key);
}
#endif
}
}
static Boolean Test()
{
Boolean bRes = true;
Byte[] abKey1 = {0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b, 0x0b};
Byte[] abData1 = (new System.Text.ASCIIEncoding()).GetBytes("Hi There");
Byte[] abDigest1 = {0xb6, 0x17, 0x31, 0x86, 0x55, 0x05, 0x72, 0x64, 0xe2, 0x8b, 0xc0, 0xb6, 0xfb, 0x37, 0x8c, 0x8e, 0xf1, 0x46, 0xbe, 0x00};
Byte[] abKey2 = (new System.Text.ASCIIEncoding()).GetBytes("Jefe");
Byte[] abData2 = (new System.Text.ASCIIEncoding()).GetBytes("what do ya want for nothing?");
Byte[] abDigest2 = {0xef, 0xfc, 0xdf, 0x6a, 0xe5, 0xeb, 0x2f, 0xa2, 0xd2, 0x74, 0x16, 0xd5, 0xf1, 0x84, 0xdf, 0x9c, 0x25, 0x9a, 0x7c, 0x79};
Console.WriteLine("Testing rc21 hash...");
HMACSHA1 rc21 = new HMACSHA1(abKey1);
HMACSHA1 rc22 = new HMACSHA1(abKey2);
rc21.ComputeHash(abData1);
rc22.ComputeHash(abData2);
Console.WriteLine("The computed hash #1 is : ");
PrintByteArray(rc21.Hash);
Console.WriteLine("The correct hash #1 is : ");
PrintByteArray(abDigest1);
if(Compare(rc21.Hash, abDigest1)) {
Console.WriteLine("CORRECT");
} else {
Console.WriteLine("INCORRECT");
bRes = false;
}
Console.WriteLine("The computed hash #2 is : ");
PrintByteArray(rc22.Hash);
Console.WriteLine("The correct hash #2 is : ");
PrintByteArray(abDigest2);
if(Compare(rc22.Hash, abDigest2)) {
Console.WriteLine("CORRECT");
} else {
Console.WriteLine("INCORRECT");
bRes = false;
}
return bRes;
}
public static byte[] WhatsappEncrypt(byte[] key, byte[] data, bool appendHash)
{
if (encryptionOutgoing == null)
encryptionOutgoing = new RC4(key, 256);
HMACSHA1 h = new HMACSHA1(key);
byte[] buff = new byte[data.Length];
Buffer.BlockCopy(data, 0, buff, 0, data.Length);
encryptionOutgoing.Cipher(buff);
byte[] hashByte = h.ComputeHash(buff);
byte[] response = new byte[4 + buff.Length];
if (appendHash)
{
Buffer.BlockCopy(buff, 0, response, 0, buff.Length);
Buffer.BlockCopy(hashByte, 0, response, buff.Length, 4);
}
else
{
Buffer.BlockCopy(hashByte, 0, response, 0, 4);
Buffer.BlockCopy(buff, 0, response, 4, buff.Length);
}
return response;
}
public static bool ValidateCode(SecurityToken securityToken, int code, string modifier = null)
{
if (securityToken == null)
{
throw new ArgumentNullException("securityToken");
}
// Allow a variance of no greater than 90 seconds in either direction
var currentTimeStep = GetCurrentTimeStepNumber();
using (var hashAlgorithm = new HMACSHA1(securityToken.GetDataNoClone())) {
for (var i = -2; i <= 2; i++)
{
var computedTotp = ComputeTotp(hashAlgorithm, (ulong)((long)currentTimeStep + i), modifier);
if (computedTotp == code)
{
return(true);
}
}
}
// No match
return(false);
}
static private bool IsGithubPushAllowed(string payload, string eventName, string signatureWithPrefix)
{
if (string.IsNullOrWhiteSpace(payload))
{
throw new ArgumentNullException(nameof(payload));
}
if (string.IsNullOrWhiteSpace(eventName))
{
throw new ArgumentNullException(nameof(eventName));
}
if (string.IsNullOrWhiteSpace(signatureWithPrefix))
{
throw new ArgumentNullException(nameof(signatureWithPrefix));
}
if (signatureWithPrefix.StartsWith(Sha1Prefix, StringComparison.OrdinalIgnoreCase))
{
var signature = signatureWithPrefix.Substring(Sha1Prefix.Length);
var secret = Encoding.ASCII.GetBytes(ServiceSecret);
var payloadBytes = Encoding.UTF8.GetBytes(payload);
using (var hmSha1 = new HMACSHA1(secret))
{
var hash = hmSha1.ComputeHash(payloadBytes);
var hashString = ToHexString(hash);
if (hashString.Equals(signature))
{
return(true);
}
}
}
return(false);
}
/// <summary>
/// Performs an encryption using AES/CBC/PKCS7 with an input byte array and key, with a IV (comprised of random bytes and the HMAC-SHA1 of the random bytes and plaintext) prepended using AES/ECB/None
/// </summary>
public static byte[] SymmetricEncryptWithHMACIV(byte[] input, byte[] key, byte[] hmacSecret)
{
if (input == null)
{
throw new ArgumentNullException(nameof(input));
}
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (hmacSecret == null)
{
throw new ArgumentNullException(nameof(hmacSecret));
}
// IV is HMAC-SHA1(Random(3) + Plaintext) + Random(3). (Same random values for both)
var iv = new byte[16];
var random = GenerateRandomBlock(3);
Array.Copy(random, 0, iv, iv.Length - random.Length, random.Length);
using (var hmac = new HMACSHA1(hmacSecret))
using (var ms = new MemoryStream())
{
ms.Write(random, 0, random.Length);
ms.Write(input, 0, input.Length);
ms.Seek(0, SeekOrigin.Begin);
var hash = hmac.ComputeHash(ms);
Array.Copy(hash, iv, iv.Length - random.Length);
}
return(SymmetricEncryptWithIV(input, key, iv));
}
/// <summary>
/// Verifies and performs a symmetricdecrypt on the input using the given password as a key
/// </summary>
public static byte[] VerifyAndDecryptPassword(byte[] input, string password)
{
if (input == null)
{
throw new ArgumentNullException(nameof(input));
}
if (password == null)
{
throw new ArgumentNullException(nameof(password));
}
byte[] key, hash;
using (var sha256 = SHA256.Create())
{
byte[] password_bytes = Encoding.UTF8.GetBytes(password);
key = sha256.ComputeHash(password_bytes);
}
using (HMACSHA1 hmac = new HMACSHA1(key))
{
hash = hmac.ComputeHash(input, 0, 32);
}
for (int i = 32; i < input.Length; i++)
{
if (input[i] != hash[i % 32])
{
return(null);
}
}
byte[] encrypted = new byte[32];
Array.Copy(input, encrypted, encrypted.Length);
return(CryptoHelper.SymmetricDecrypt(encrypted, key));
}
/// <summary>
/// Checks whether the specified pairwise transit key is valid for the EAPoL key
/// </summary>
/// <param name="eapolKey">The EAPoL key to check against</param>
/// <param name="ptk">The pairwise transit key to check</param>
/// <returns>True if the key is valid, false if it is not</returns>
public static bool PtkIsValid(IEEE802_1x <EapolKey> eapolKey, byte[] ptk)
{
var tkip = (eapolKey.Payload.KeyInformation & 7) == 1;
bool isValid;
var MIC = eapolKey.Payload.MIC;
eapolKey.Payload.MIC = new byte[MIC.Length];
try
{
HMAC hmac;
var key = ptk.Take(16).ToArray();
if (tkip)
{
#if DOTNET5_4
throw new System.Exception("The current version of System.Security.Cryptography.Algorithms is missing HMACMD5.");
#else
hmac = new HMACMD5(key);
#endif
}
else
{
hmac = new HMACSHA1(key);
}
var computedHash = hmac.ComputeHash(eapolKey.ToArray());
isValid = computedHash.Take(16).SequenceEqual(MIC.Take(16));
}
finally
{
eapolKey.Payload.MIC = MIC;
}
return(isValid);
}
/*
* 计算 HMAC-SHA1
*/
public static String HMACSha1(String data, String key)
{
String result = "";
//使用CodePagesEncodingProvider去注册扩展编码。
Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
//注册GBK编码
Encoding encodingGbk = Encoding.GetEncoding("GBK");
byte[] dataByte = encodingGbk.GetBytes(data);
byte[] keyByte = encodingGbk.GetBytes(key);
using (HMACSHA1 hmac = new HMACSHA1(keyByte))
{
using (MemoryStream stream = new MemoryStream(dataByte))
{
byte[] hashValue = hmac.ComputeHash(stream);
result = Convert.ToBase64String(hashValue);
}
}
return(result);
}
/// <summary>
/// OAuth認証ヘッダの署名作成
/// </summary>
/// <param name="tokenSecret">アクセストークン秘密鍵</param>
/// <param name="method">HTTPメソッド文字列</param>
/// <param name="uri">アクセス先Uri</param>
/// <param name="parameter">クエリ、もしくはPOSTデータ</param>
/// <returns>署名文字列</returns>
public static string CreateSignature(string consumerSecret, string tokenSecret, string method, Uri uri, Dictionary <string, string> parameter)
{
// パラメタをソート済みディクショナリに詰替（OAuthの仕様）
SortedDictionary <string, string> sorted = new SortedDictionary <string, string>(parameter);
// URLエンコード済みのクエリ形式文字列に変換
string paramString = MyCommon.BuildQueryString(sorted);
// アクセス先URLの整形
string url = string.Format("{0}://{1}{2}", uri.Scheme, uri.Host, uri.AbsolutePath);
// 署名のベース文字列生成（&区切り）。クエリ形式文字列は再エンコードする
string signatureBase = string.Format("{0}&{1}&{2}", method, MyCommon.UrlEncode(url), MyCommon.UrlEncode(paramString));
// 署名鍵の文字列をコンシューマー秘密鍵とアクセストークン秘密鍵から生成（&区切り。アクセストークン秘密鍵なくても&残すこと）
string key = MyCommon.UrlEncode(consumerSecret) + "&";
if (!string.IsNullOrEmpty(tokenSecret))
{
key += MyCommon.UrlEncode(tokenSecret);
}
// 鍵生成＆署名生成
using (HMACSHA1 hmac = new HMACSHA1(Encoding.ASCII.GetBytes(key)))
{
byte[] hash = hmac.ComputeHash(Encoding.ASCII.GetBytes(signatureBase));
return(Convert.ToBase64String(hash));
}
}
public void GenerateSessionKey(byte[] clientSalt, byte[] serverSalt)
{
var hmac = new HMACSHA1(SecureRemotePassword.SessionKey);
var wow = Encoding.ASCII.GetBytes("WoW\0");
var wowSessionKey = new byte[0x28];
hmac.TransformBlock(wow, 0, wow.Length, wow, 0);
hmac.TransformBlock(clientSalt, 0, clientSalt.Length, clientSalt, 0);
hmac.TransformFinalBlock(serverSalt, 0, serverSalt.Length);
Buffer.BlockCopy(hmac.Hash, 0, wowSessionKey, 0, hmac.Hash.Length);
hmac.Initialize();
hmac.TransformBlock(wow, 0, wow.Length, wow, 0);
hmac.TransformBlock(serverSalt, 0, serverSalt.Length, serverSalt, 0);
hmac.TransformFinalBlock(clientSalt, 0, clientSalt.Length);
Buffer.BlockCopy(hmac.Hash, 0, wowSessionKey, hmac.Hash.Length, hmac.Hash.Length);
GameAccount.SessionKey = wowSessionKey.ToHexString();
// Update SessionKey in database
DB.Auth.Update(GameAccount, "SessionKey");
}
public void Can_Persist_New_User_With_Hashed_Password()
{
// Arrange
var userService = ServiceContext.UserService;
// Act
// NOTE: Normally the hash'ing would be handled in the membership provider, so the service just saves the password
var password = "******";
var hash = new HMACSHA1();
hash.Key = Encoding.Unicode.GetBytes(password);
var encodedPassword = Convert.ToBase64String(hash.ComputeHash(Encoding.Unicode.GetBytes(password)));
var membershipUser = new User("JohnDoe", "*****@*****.**", encodedPassword, encodedPassword);
userService.Save(membershipUser);
// Assert
Assert.That(membershipUser.HasIdentity, Is.True);
Assert.That(membershipUser.RawPasswordValue, Is.Not.EqualTo(password));
Assert.That(membershipUser.RawPasswordValue, Is.EqualTo(encodedPassword));
IUser user = membershipUser as User;
Assert.That(user, Is.Not.Null);
}
private string GenerateTokenForTime(long time)
{
if (time == 0)
{
Logging.LogNullError(nameof(time), Bot.BotName);
return(null);
}
byte[] sharedSecretArray = Convert.FromBase64String(SharedSecret);
byte[] timeArray = new byte[8];
time /= 30L;
for (int i = 8; i > 0; i--)
{
timeArray[i - 1] = (byte)time;
time >>= 8;
}
byte[] hashedData;
using (HMACSHA1 hmacGenerator = new HMACSHA1(sharedSecretArray, true)) {
hashedData = hmacGenerator.ComputeHash(timeArray);
}
byte b = (byte)(hashedData[19] & 0xF);
int codePoint = ((hashedData[b] & 0x7F) << 24) | ((hashedData[b + 1] & 0xFF) << 16) | ((hashedData[b + 2] & 0xFF) << 8) | (hashedData[b + 3] & 0xFF);
byte[] codeArray = new byte[5];
for (int i = 0; i < 5; ++i)
{
codeArray[i] = TokenCharacters[codePoint % TokenCharacters.Length];
codePoint /= TokenCharacters.Length;
}
return(Encoding.UTF8.GetString(codeArray));
}
public string GenerateOtp(int input)
{
// Since .net uses little endian numbers, we need to reverse the byte order to get big endian.
var data = BitConverter.GetBytes((long)input);
Array.Reverse(data);
HMAC hmac = null;
switch (this.digest)
{
case Digest.Sha256:
hmac = new HMACSHA256();
break;
case Digest.Sha512:
hmac = new HMACSHA512();
break;
default: //case Digest.Sha1:
hmac = new HMACSHA1();
break;
}
hmac.Key = Base32.Decode(this.secret);
byte[] hashedValue = hmac.ComputeHash(data);
int offset = hashedValue[hashedValue.Length - 1] & 0x0F;
long result = (hashedValue[offset] & 0x7f) << 24
| (hashedValue[offset + 1] & 0xff) << 16
| (hashedValue[offset + 2] & 0xff) << 8
| (hashedValue[offset + 3] & 0xff) % 1000000;
var truncatedValue = ((int)result % (int)Math.Pow(10, this.digits));
return(truncatedValue.ToString().PadLeft(this.digits, '0'));
}
public static void Main(String[] args)
{
try
{
// Generate a signing key.
HMACSHA1 Key = new HMACSHA1();
// Create an XML file to sign.
CreateSomeXml("Example.xml");
Console.WriteLine("New XML file created.");
// Sign the XML that was just created and save it in a
// new file.
SignXmlFile("Example.xml", "SignedExample.xml", Key);
Console.WriteLine("XML file signed.");
// Verify the signature of the signed XML.
Console.WriteLine("Verifying Signature...");
bool result = VerifyXmlFile("SignedExample.xml", Key);
// Display the results of the signature verification to \
// the console.
if (result)
{
Console.WriteLine("The XML signature is valid.");
}
else
{
Console.WriteLine("The XML signature is not valid.");
}
}
catch (CryptographicException e)
{
Console.WriteLine(e.Message);
}
}
public static string HashHMAC_SHA1(string input, string key, bool raw = false)
{
byte[] datBytes = Encoding.UTF8.GetBytes(input);
byte[] keyBytes = Encoding.Default.GetBytes(key);
using (HMACSHA1 hMac = new HMACSHA1(keyBytes))
{
byte[] output = hMac.ComputeHash(datBytes);
if (raw)
{
return(Encoding.Default.GetString(output));
}
else
{
StringBuilder sBuilder = new StringBuilder();
for (int i = 0; i < output.Length; i++)
{
sBuilder.Append(output[i].ToString("x2"));
}
return(sBuilder.ToString());
}
}
}
//
// EncodePassword
// Encrypts, Hashes, or leaves the password clear based on the PasswordFormat.
//
private string EncodePassword(string password)
{
string encodedPassword = password;
switch (PasswordFormat)
{
case MembershipPasswordFormat.Clear:
break;
case MembershipPasswordFormat.Encrypted:
encodedPassword =
Convert.ToBase64String(EncryptPassword(Encoding.Unicode.GetBytes(password)));
break;
case MembershipPasswordFormat.Hashed:
HMACSHA1 hash = new HMACSHA1();
hash.Key = HexToByte(machineKey.ValidationKey);
encodedPassword =
Convert.ToBase64String(hash.ComputeHash(Encoding.Unicode.GetBytes(password)));
break;
default:
throw new ProviderException("Unsupported password format.");
}
return encodedPassword;
}
private string Sign(string url)
{
// add Google Client Id to query
url += "&client=" + GoogleClientId;
var encoding = new ASCIIEncoding();
// converting key to bytes will throw an exception, need to replace '-' and '_' characters first.
var usablePrivateKey = GoogleCryptoKey.Replace("-", "+").Replace("_", "/");
var privateKeyBytes = Convert.FromBase64String(usablePrivateKey);
var uri = new Uri(url);
var encodedPathAndQueryBytes = encoding.GetBytes(uri.LocalPath + uri.Query);
// compute the hash
var algorithm = new HMACSHA1(privateKeyBytes);
var hash = algorithm.ComputeHash(encodedPathAndQueryBytes);
// convert the bytes to string and make url-safe by replacing '+' and '/' characters
var signature = Convert.ToBase64String(hash).Replace("+", "-").Replace("/", "_");
// Add the signature to the existing URI.
return(uri.Scheme + "://" + uri.Host + uri.LocalPath + uri.Query + "&signature=" + signature);
}
public KeyedHashAlgorithm CreateAlgorithm(string name)
{
KeyedHashAlgorithm algorithm;
switch (name)
{
case "HMACSHA1":
algorithm = new HMACSHA1();
break;
case "HMACSHA256":
algorithm = new HMACSHA256();
break;
case "HMACMD5":
algorithm = new HMACMD5();
break;
default:
algorithm = KeyedHashAlgorithm.Create(name);
break;
}
return(algorithm);
}
internal Uri Sign(Uri _uri)
{
// Based on the C# sample from: https://developers.google.com/maps/documentation/business/webservices
if (_uri == null)
{
throw new ArgumentNullException("_uri");
}
if (this.ClientId == null)
{
throw new NullReferenceException("ClientID");
}
if (string.IsNullOrWhiteSpace(this.SigningKey))
{
throw new ArgumentException("Invalid signing key.");
}
if (!this.ClientId.StartsWith("gme-"))
{
throw new ArgumentException("A user ID must start with 'gme-'.");
}
var _urlSegmentToSign = _uri.LocalPath + _uri.Query + "&client=" + this.ClientId;
var _privateKey = SignableRequest.FromBase64UrlString(SigningKey);
byte[] _signature;
using (var _algorithm = new HMACSHA1(_privateKey))
{
_signature = _algorithm.ComputeHash(Encoding.ASCII.GetBytes(_urlSegmentToSign));
}
return(new Uri(_uri.Scheme + "://" + _uri.Host + _urlSegmentToSign + "&signature=" + SignableRequest.ToBase64UrlString(_signature)));
}
/// <summary>
/// Generates a pin by hashing a key and counter.
/// </summary>
private static string GeneratePin(byte[] key, long counter)
{
//Get counter bytes (in big endian order)
var counterBytes = BitConverter.GetBytes(counter);
if (BitConverter.IsLittleEndian)
{
Array.Reverse(counterBytes);
}
byte[] hash;
using (var hmac = new HMACSHA1(key))
hash = hmac.ComputeHash(counterBytes);
var offset = hash[hash.Length - 1] & 0xF;
var selectedBytes = new byte[sizeof(int)];
Buffer.BlockCopy(hash, offset, selectedBytes, 0, sizeof(int));
//spec interprets bytes in big-endian order
if (BitConverter.IsLittleEndian)
{
Array.Reverse(selectedBytes);
}
var selectedInteger = BitConverter.ToInt32(selectedBytes, 0);
//remove the most significant bit for interoperability per spec
var truncatedHash = selectedInteger & 0x7FFFFFFF;
//generate number of digits for given pin length
var pin = truncatedHash % _pinModulo;
return(pin.ToString(CultureInfo.InvariantCulture).PadLeft(PIN_LENGTH, '0'));
}
static bool Verify(string uri, dict plivoHttpParams, string xPlivoSignature, string authToken)
{
var isMatch = false;
foreach (KeyValuePair <string, string> kvp in plivoHttpParams.OrderBy(key => key.Key))
{
uri += kvp.Key + kvp.Value;
}
var enc = Encoding.ASCII;
HMACSHA1 myhmacsha1 = new HMACSHA1(enc.GetBytes(authToken));
byte[] byteArray = Encoding.ASCII.GetBytes(uri);
MemoryStream stream = new MemoryStream(byteArray);
byte[] hashValue = myhmacsha1.ComputeHash(stream);
string generatedSignature = Convert.ToBase64String(hashValue);
if (xPlivoSignature.Equals(generatedSignature))
{
isMatch = true;
}
return(isMatch);
}
private static byte[] ComputeHmac(this HashAlgorithmEnum algorithm, byte[] key, byte[] input)
{
KeyedHashAlgorithm hmacAlgo = new HMACMD5();
switch (algorithm)
{
case HashAlgorithmEnum.Md5: hmacAlgo = new HMACMD5(key);
break;
case HashAlgorithmEnum.Sha1: hmacAlgo = new HMACSHA1(key);
break;
case HashAlgorithmEnum.Sha2256: hmacAlgo = new HMACSHA256(key);
break;
case HashAlgorithmEnum.Sha2384: hmacAlgo = new HMACSHA384(key);
break;
case HashAlgorithmEnum.Sha2512: hmacAlgo = new HMACSHA512(key);
break;
}
return(hmacAlgo.ComputeHash(input));
}
// Esse método é igual ao exemplo fornecido pelo Google.
// https://developers.google.com/maps/documentation/business/webservices/auth?hl=en-us
private string IncludeSignature(string url, string keyString)
{
ASCIIEncoding encoding = new ASCIIEncoding();
// converting key to bytes will throw an exception, need to replace '-' and '_' characters first.
string usablePrivateKey = keyString.Replace("-", "+").Replace("_", "/");
byte[] privateKeyBytes = Convert.FromBase64String(usablePrivateKey);
Uri uri = new Uri(url);
byte[] encodedPathAndQueryBytes = encoding.GetBytes(uri.LocalPath + uri.Query);
// compute the hash
HMACSHA1 algorithm = new HMACSHA1(privateKeyBytes);
byte[] hash = algorithm.ComputeHash(encodedPathAndQueryBytes);
// convert the bytes to string and make url-safe by replacing '+' and '/' characters
string signature = Convert.ToBase64String(hash).Replace("+", "-").Replace("/", "_");
// Add the signature to the existing URI.
return(uri.Scheme + "://" + uri.Host + uri.LocalPath + uri.Query + "&signature=" + signature);
}
/// <summary>
/// Generates a signature using the specified signatureType
/// </summary>
/// <param name="url">The full url that needs to be signed including its non OAuth url parameters</param>
/// <param name="consumerKey">The consumer key</param>
/// <param name="consumerSecret">The consumer seceret</param>
/// <param name="token">The token, if available. If not available pass null or an empty string</param>
/// <param name="tokenSecret">The token secret, if available. If not available pass null or an empty string</param>
/// <param name="httpMethod">The http method used. Must be a valid HTTP method verb (POST,GET,PUT, etc)</param>
/// <param name="signatureType">The type of signature to use</param>
/// <returns>A base64 string of the hash value</returns>
public string GenerateSignature(Uri url, string consumerKey, string consumerSecret, string token, string tokenSecret, string httpMethod, string timeStamp, string nonce, string callback, SignatureTypes signatureType, out string normalizedUrl, out string normalizedRequestParameters)
{
normalizedUrl = null;
normalizedRequestParameters = null;
switch (signatureType)
{
case SignatureTypes.PLAINTEXT:
return(HttpUtility.UrlEncode(string.Format("{0}&{1}", consumerSecret, tokenSecret)));
case SignatureTypes.HMACSHA1:
string signatureBase = GenerateSignatureBase(url, consumerKey, token, tokenSecret, httpMethod, timeStamp, nonce, callback, HMACSHA1SignatureType, out normalizedUrl, out normalizedRequestParameters);
HMACSHA1 hmacsha1 = new HMACSHA1();
hmacsha1.Key = Encoding.ASCII.GetBytes(string.Format("{0}&{1}", UrlEncode(consumerSecret), string.IsNullOrEmpty(tokenSecret) ? "" : UrlEncode(tokenSecret)));
return(GenerateSignatureUsingHash(signatureBase, hmacsha1));
case SignatureTypes.RSASHA1:
throw new NotImplementedException();
default:
throw new ArgumentException("Unknown signature type", "signatureType");
}
}
public static string Generate(byte[] pbSecret, ulong uFactor,
uint uCodeDigits, bool bAddChecksum, int iTruncationOffset)
{
byte[] pbText = MemUtil.UInt64ToBytes(uFactor);
Array.Reverse(pbText); // Big-Endian
#if KeePass2PCL
var hsha1 = WinRTCrypto.MacAlgorithmProvider.OpenAlgorithm(MacAlgorithm.HmacSha1).CreateHash(pbSecret);
hsha1.Append(pbText);
var pbHash = hsha1.GetValueAndReset();
#else
HMACSHA1 hsha1 = new HMACSHA1(pbSecret);
byte[] pbHash = hsha1.ComputeHash(pbText);
#endif
uint uOffset = (uint)(pbHash[pbHash.Length - 1] & 0xF);
if ((iTruncationOffset >= 0) && (iTruncationOffset < (pbHash.Length - 4)))
{
uOffset = (uint)iTruncationOffset;
}
uint uBinary = (uint)(((pbHash[uOffset] & 0x7F) << 24) |
((pbHash[uOffset + 1] & 0xFF) << 16) |
((pbHash[uOffset + 2] & 0xFF) << 8) |
(pbHash[uOffset + 3] & 0xFF));
uint uOtp = (uBinary % vDigitsPower[uCodeDigits]);
if (bAddChecksum)
{
uOtp = ((uOtp * 10) + CalculateChecksum(uOtp, uCodeDigits));
}
uint uDigits = (bAddChecksum ? (uCodeDigits + 1) : uCodeDigits);
return(uOtp.ToString(NumberFormatInfo.InvariantInfo).PadLeft(
(int)uDigits, '0'));
}
public void Initialize(byte[] sessionKey)
{
if (IsInitialized)
{
throw new InvalidOperationException("PacketCrypt already initialized!");
}
SARC4Encrypt = new SARC4();
SARC4Decrypt = new SARC4();
DecryptSHA1 = new HMACSHA1(ServerDecryptionKey);
EncryptSHA1 = new HMACSHA1(ServerEncryptionKey);
SARC4Encrypt.PrepareKey(EncryptSHA1.ComputeHash(sessionKey));
SARC4Decrypt.PrepareKey(DecryptSHA1.ComputeHash(sessionKey));
byte[] PacketEncryptionDummy = new byte[0x400];
byte[] PacketDecryptionDummy = new byte[0x400];
SARC4Encrypt.ProcessBuffer(PacketEncryptionDummy, PacketEncryptionDummy.Length);
SARC4Decrypt.ProcessBuffer(PacketDecryptionDummy, PacketDecryptionDummy.Length);
IsInitialized = true;
}
public static string Generate(byte[] pbSecret, ulong uFactor,
uint uCodeDigits, bool bAddChecksum, int iTruncationOffset)
{
byte[] pbText = MemUtil.UInt64ToBytes(uFactor);
Array.Reverse(pbText); // To big-endian
byte[] pbHash;
using (HMACSHA1 h = new HMACSHA1(pbSecret))
{
pbHash = h.ComputeHash(pbText);
}
uint uOffset = (uint)(pbHash[pbHash.Length - 1] & 0xF);
if ((iTruncationOffset >= 0) && (iTruncationOffset < (pbHash.Length - 4)))
{
uOffset = (uint)iTruncationOffset;
}
uint uBinary = (uint)(((pbHash[uOffset] & 0x7F) << 24) |
((pbHash[uOffset + 1] & 0xFF) << 16) |
((pbHash[uOffset + 2] & 0xFF) << 8) |
(pbHash[uOffset + 3] & 0xFF));
uint uOtp = (uBinary % g_vDigitsPower[uCodeDigits]);
if (bAddChecksum)
{
uOtp = ((uOtp * 10) + CalculateChecksum(uOtp, uCodeDigits));
}
uint uDigits = (bAddChecksum ? (uCodeDigits + 1) : uCodeDigits);
return(uOtp.ToString(NumberFormatInfo.InvariantInfo).PadLeft(
(int)uDigits, '0'));
}
/// <summary>
/// Вычисление цифровой подписи
/// </summary>
/// <param name="requestParams">Входные параметры</param>
/// <param name="secretWord">Секретное слово</param>
/// <param name="action">Используемый метод</param>
/// <returns></returns>
public static string Compute(Dictionary <string, string> requestParams, string secretWord, string action)
{
var normalizedParams = requestParams
.ToDictionary(k => k.Key.ToLower(), v => v.Value);
var cmdFields = Mapping[action];
var builder = new StringBuilder();
foreach (var cmdField in cmdFields)
{
if (normalizedParams.ContainsKey(cmdField))
{
builder.Append(normalizedParams[cmdField]);
}
}
HMACSHA1 hmac;
if (string.IsNullOrWhiteSpace(secretWord))
{
// В алгоритме всегда должно быть задан ключ шифрования. Если используется конструктор по умолчанию, то ключ генерируется автоматически,
// что нам не подходит
hmac = new HMACSHA1(HashEncoding.GetBytes(string.Empty));
}
else
{
hmac = new HMACSHA1(HashEncoding.GetBytes(secretWord));
}
var hash = hmac.ComputeHash(
HashEncoding.GetBytes(builder.ToString()));
var result = new StringBuilder();
foreach (var item in hash)
{
result.Append(item.ToString("X2"));
}
return(result.ToString());
}
/// <summary>
///
/// </summary>
/// <param name="purpose"></param>
/// <param name="token"></param>
/// <param name="manager"></param>
/// <param name="user"></param>
/// <returns></returns>
public virtual async Task <bool> ValidateAsync(string purpose, string token, UserManager <TUser> manager, TUser user)
{
var key = await manager.GetAuthenticatorKeyAsync(user);
if (!int.TryParse(token, out int code))
{
return(false);
}
var hash = new HMACSHA1(Base32.FromBase32(key));
var unixTimestamp = Convert.ToInt64(Math.Round((DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0)).TotalSeconds));
var timestep = Convert.ToInt64(unixTimestamp / 30);
// 允许代码从90年代在每个方向（我们可以使这可配置？）
for (int i = -2; i <= 2; i++)
{
var expectedCode = Rfc6238AuthenticationService.ComputeTotp(hash, (ulong)(timestep + i), modifier: null);
if (expectedCode == code)
{
return(true);
}
}
return(false);
}
public static JodelHttpClient Create(DateTime timestamp, string stringifiedPayload = "", string accesstoken = "", HttpMethod method = null)
{
var httpClient = new JodelHttpClient();
var keyByte = Encoding.UTF8.GetBytes(Constants.HMAC_SECRET);
var hmacsha1 = new HMACSHA1(keyByte);
hmacsha1.ComputeHash(Encoding.UTF8.GetBytes(stringifiedPayload));
httpClient.AddRequestHeader("X-Timestamp", $"{timestamp:s}Z");
httpClient.AddRequestHeader("X-Authorization", "HMAC " + hmacsha1.Hash.Aggregate(string.Empty, (current, t) => current + t.ToString("X2")));
if (!string.IsNullOrEmpty(accesstoken))
{
httpClient.AddRequestHeader("Authorization", "Bearer " + accesstoken);
}
if (method != HttpMethod.Get)
{
httpClient.AddPostsHeaders();
}
return(httpClient);
}
protected string serviceSignature(Dictionary <string, string> headers,
Dictionary <string, string> parameters, string secretKey)
{
Dictionary <string, string> calcParams = checkNotExcluded(headers);
if (null != parameters)
{
foreach (var param in parameters)
{
calcParams.Add(param.Key, param.Value);
}
}
SignatureBytes sb = new SignatureBytes();
foreach (var param in calcParams)
{
sb.AddField(param.Key, param.Value);
}
HMACSHA1 mac = new HMACSHA1();
mac.Key = Encoding.UTF8.GetBytes(secretKey);
byte[] hashBytes = mac.ComputeHash(sb.GetData());
return(Convert.ToBase64String(hashBytes));
}
public static string Hash(string plainText, string privateKey, int cipherStrength)
{
try
{
byte[] KeyBytes = Encoder.GetBytes(privateKey);
HMAC Cipher = null;
if (cipherStrength == 1)
{
Cipher = new HMACSHA1(KeyBytes);
}
else if (cipherStrength == 256)
{
Cipher = new HMACSHA256(KeyBytes);
}
else if (cipherStrength == 384)
{
Cipher = new HMACSHA384(KeyBytes);
}
else if (cipherStrength == 512)
{
Cipher = new HMACSHA512(KeyBytes);
}
else
{
throw new Exception("Enter a valid cipher strength.");
}
byte[] PlainBytes = Encoder.GetBytes(plainText);
byte[] HashedBytes = Cipher.ComputeHash(PlainBytes);
return(Convert.ToBase64String(HashedBytes));
}
catch (Exception ex)
{
//Don't log here. Logging should be down in calling method.
throw ex;
}
}
private static string Base64EncodeHash(Stream ms)
{
ms.Seek(0, SeekOrigin.Begin);
byte[] result;
HMACSHA1 shaM = new HMACSHA1();
shaM.Key = new byte[1];
shaM.Initialize();
result = shaM.ComputeHash(ms);
string hash = System.Convert.ToBase64String(result);
return hash;
}
public string getHmacSHA1(String data)
{
System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
byte[] keyByte = encoding.GetBytes(this.secure_pass);
HMACSHA1 hmacsha1 = new HMACSHA1(keyByte);
byte[] messageBytes = encoding.GetBytes(data);
byte[] hashmessage = hmacsha1.ComputeHash(messageBytes);
string encrypted = this.ByteToString(hashmessage);
return encrypted;
}
private string HMAC_SHA1(string key, string message)
{
System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
byte[] keyByte = encoding.GetBytes(key);
HMACMD5 hmacmd5 = new HMACMD5(keyByte);
HMACSHA1 hmacsha1 = new HMACSHA1(keyByte);
byte[] messageBytes = encoding.GetBytes(message);
byte[] hashmessage = hmacsha1.ComputeHash(messageBytes);
return ByteToString(hashmessage);
}
/// <summary>
/// Creates and returns an HMAC-SHA1 signature of a String.
/// </summary>
/// <param name="token">The String that will be used to create the signature.</param>
/// <returns></returns>
protected static string SignToken(string token)
{
byte[] hash;
using (HMACSHA1 hmacsha1 = new HMACSHA1(Encoding.ASCII.GetBytes(api_key)))
{
hash = hmacsha1.ComputeHash(Encoding.ASCII.GetBytes(token));
}
return Convert.ToBase64String(hash);
}
private static string CreateTimeHash(long time, string tag, string secret)
{
byte[] b64secret = Convert.FromBase64String(secret);
int bufferSize = 8;
if (string.IsNullOrEmpty(tag) == false)
{
bufferSize += Math.Min(32, tag.Length);
}
byte[] buffer = new byte[bufferSize];
byte[] timeArray = BitConverter.GetBytes(time);
if (BitConverter.IsLittleEndian)
{
Array.Reverse(timeArray);
}
Array.Copy(timeArray, buffer, 8);
if (string.IsNullOrEmpty(tag) == false)
{
Array.Copy(Encoding.UTF8.GetBytes(tag), 0, buffer, 8, bufferSize - 8);
}
HMACSHA1 hmac = new HMACSHA1(b64secret, true);
byte[] hash = hmac.ComputeHash(buffer);
return Convert.ToBase64String(hash, Base64FormattingOptions.None);
}
/**
*
*/
protected override string CreateSignature(string token_secret, string method, Uri uri, IDictionary<string, string> palams)
{
const string proxy_domain = string.Format( "{0}://{1}", uri.Scheme, __proxy_host );
const string real_proxy = string.Format( "{0}://{1}", uri.Scheme, __default_api_host );
// params をソート済みディクショナリに詰め替えます。
SortedDictionary sorted_params = new SortedDictionary<string, string>( palams );
// URL エンコード済みのクエリ形式文字列に変換します。
string param_string = CreateQueryString( sorted_params );
// アクセス先 URL の整形をおこないます。
string url = string.Format( "{0}://{1}{2}", uri.Scheme, uri.Host, uri.AbsolutePath );
// 本来のアクセス先 URL に再設定します。
if ( !string.IsNullOrEmpty( __proxy_host ) && url.StartsWith( proxy_domain ) ) {
url = url.Replace( proxy_domain, real_domain );
}
// 署名のベース文字列を生成します('&' 区切り)。クエリ形式文字列は再エンコードします。
string sigunature_base = string.Format( "{0}&{1}&{2}", method, UrlEncode( url ), UrlEncode( param_string ) );
// 署名鍵の文字列をコンシューマー秘密鍵とアクセストークン秘密鍵から生成します('&' 区切りです。
// アクセストークン秘密鍵が無くても '&' を残すようにしてください)。
StringBuilder key_builder = new StringBuilder( UrlEncode( this.consumer_secret_ ) ).Append( "&" );
if ( !string.Format( this.token_secret_ ) )
key_builder.Append( UrlEncode( this.token_secret_ ) );
//
// 鍵と署名を生成します。
//
using ( HMACSHA1 hmac = new HMACSHA1( Encoding.ASCII.GetBytes( key_builder.ToString() ) ) ) {
byte[] hash = hmac.ComputeHash( Encoding.ASCII.GetBytes( sigunature_base ) );
return Convert.ToBase64String( hash );
}
}
public byte[] ComputeHash(byte[] source, byte[] key)
{
HMACSHA1 hma = new HMACSHA1(key);
return hma.ComputeHash(source);
}
public byte[] ComputeHash(string source, string key, Encoding encoding)
{
HMACSHA1 hma = new HMACSHA1(encoding.GetBytes(key));
return hma.ComputeHash(encoding.GetBytes(source));
}
private static string GenerateSignatureBySignatureBase(string httpMethod, string consumerSecret, string tokenSecret, string normalizedUrl, StringBuilder sbSignatureBase)
{
string normalizedRequestParameters = sbSignatureBase.ToString().TrimEnd('&');
StringBuilder signatureBase = new StringBuilder();
signatureBase.AppendFormat("{0}&", httpMethod.ToString());
signatureBase.AppendFormat("{0}&", UrlEncode(normalizedUrl));
signatureBase.AppendFormat("{0}", UrlEncode(normalizedRequestParameters));
HMACSHA1 hmacsha1 = new HMACSHA1();
hmacsha1.Key = Encoding.ASCII.GetBytes(string.Format("{0}&{1}", UrlEncode(consumerSecret), UrlEncode(tokenSecret)));
byte[] hashBytes = hmacsha1.ComputeHash(System.Text.Encoding.ASCII.GetBytes(signatureBase.ToString()));
return Convert.ToBase64String(hashBytes);
}
string GetSignature(Uri uri)
{
byte[] encodedPathQuery = Encoding.ASCII.GetBytes(uri.LocalPath + uri.Query);
var hashAlgorithm = new HMACSHA1(_privateKeyBytes);
byte[] hashed = hashAlgorithm.ComputeHash(encodedPathQuery);
return Convert.ToBase64String(hashed).Replace("+", "-").Replace("/", "_");
}
static string MakeOAuthSignature(string compositeSigningKey, string signatureBase)
{
using (HMACSHA1 crypto = new HMACSHA1())
{
byte[] bkey = Encoding.ASCII.GetBytes(compositeSigningKey);
// Keys longer than 60 characters aparently do not work with OpenNetCF...
if (bkey.Length > 60)
{
bkey = (new System.Security.Cryptography.SHA1CryptoServiceProvider()).ComputeHash(bkey);
}
crypto.Key = bkey;
string hash = Convert.ToBase64String(crypto.ComputeHash(Encoding.ASCII.GetBytes(signatureBase)));
crypto.Clear();
return hash;
}
}
static string get_hm_hash(string secret_key, string input)
{
HMACSHA1 hmacsha1 = new HMACSHA1(Encoding.ASCII.GetBytes(secret_key));
MemoryStream stream = new MemoryStream(Encoding.ASCII.GetBytes(input));
byte[] hashData = hmacsha1.ComputeHash(stream);
// Format as hexadecimal string.
StringBuilder sb = new StringBuilder();
foreach (byte data in hashData)
{
sb.Append(data.ToString("x2"));
}
return sb.ToString();
}
static void Symmetric (string filename, byte[] key)
{
string shortName = Path.GetFileName (filename);
XmlDocument doc = new XmlDocument ();
doc.PreserveWhitespace = true;
XmlTextReader xtr = new XmlTextReader (GetReader (filename));
XmlValidatingReader xvr = new XmlValidatingReader (xtr);
xtr.Normalization = true;
doc.Load (xvr);
try {
XmlNodeList nodeList = doc.GetElementsByTagName ("Signature", SignedXml.XmlDsigNamespaceUrl);
XmlElement signature = (XmlElement) nodeList [0];
SignedXml s = new SignedXml ();
s.LoadXml (signature);
HMACSHA1 mac = new HMACSHA1 (key);
if (s.CheckSignature (mac)) {
Console.WriteLine ("valid {0}", shortName);
valid++;
}
else {
Console.WriteLine ("INVALID {0}", shortName);
invalid++;
}
}
catch (Exception ex) {
Console.WriteLine ("EXCEPTION " + shortName + " " + ex);
error++;
}
}
/// <summary>
/// Runs an HMACSHA1 hash on specified data using specified key
/// </summary>
/// <param name="xKey"></param>
/// <param name="xData"></param>
/// <returns></returns>
public static byte[] ComputeHash(byte[] xKey, byte[] xData)
{
HMACSHA1 xhs = new HMACSHA1(xKey);
return xhs.ComputeHash(xData);
}
public static string GetSHA1(string text, string key)
{
UTF8Encoding utf8 = new UTF8Encoding();
Encoding en = utf8;
byte[] hashValue;
byte[] message = en.GetBytes(text);
byte[] k = en.GetBytes(key);
HMACSHA1 hmac = new HMACSHA1(k, true);
string hex = "";
hashValue = hmac.ComputeHash(message);
foreach (byte x in hashValue)
{
hex += String.Format("{0:x2}", x);
}
return hex;
}
//-------------------------------------------------------------------------------
#endregion JoinParameters
//-------------------------------------------------------------------------------
#region GenerateSignature
//-------------------------------------------------------------------------------
//
private string GenerateSignature(string tokenSecret, string httpMethod, string url, SortedDictionary<string, string> parameters)
{
string signatureBase = GenerateSignatureBase(httpMethod, url, parameters);
HMACSHA1 hmacsha1 = new HMACSHA1();
hmacsha1.Key = Encoding.ASCII.GetBytes(UrlEncode(ConsumerSecret) + '&' + UrlEncode(tokenSecret));
byte[] data = System.Text.Encoding.ASCII.GetBytes(signatureBase);
byte[] hash = hmacsha1.ComputeHash(data);
return Convert.ToBase64String(hash);
}
/// <summary>
/// Creates an authorization header.
/// </summary>
/// <param name="credentials">Lumos credentials object.</param>
/// <param name="postData">The POST body.</param>
/// <returns>A string suitable for the HTTP Authorization header.</returns>
public static string GenerateAuthorizationHeader (LumosCredentials credentials, byte[] postData)
{
if (postData == null) {
postData = new byte[] {};
}
var secret = Encoding.ASCII.GetBytes(credentials.apiKey);
var hmac = new HMACSHA1(secret);
var hash = hmac.ComputeHash(postData);
var auth = Convert.ToBase64String(hash);
var header = "Lumos " + credentials.gameID + ":" + auth;
return header;
}
public void LoadTwitterPosts(string page_name)
{
string str = "%20from:" + page_name + "&result_type=mixed";
string url = "https://api.twitter.com/1.1/search/tweets.json?q=" + str;
string oauthconsumerkey = System.Configuration.ConfigurationManager.AppSettings["consumerKey"];
string oauthtoken = System.Configuration.ConfigurationManager.AppSettings["oauth_token"];
string oauthconsumersecret = System.Configuration.ConfigurationManager.AppSettings["consumerSecret"];
string oauthtokensecret = System.Configuration.ConfigurationManager.AppSettings["oauth_token_secret"];
string oauthsignaturemethod = "HMAC-SHA1";
string oauthversion = "1.0";
string oauthnonce = Convert.ToBase64String(
new ASCIIEncoding().GetBytes(DateTime.Now.Ticks.ToString()));
TimeSpan timeSpan = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
string oauthtimestamp = Convert.ToInt64(timeSpan.TotalSeconds).ToString();
SortedDictionary<string, string> basestringParameters = new SortedDictionary<string, string>();
basestringParameters.Add("q", str);
basestringParameters.Add("oauth_version", oauthversion);
basestringParameters.Add("oauth_consumer_key", oauthconsumerkey);
basestringParameters.Add("oauth_nonce", oauthnonce);
basestringParameters.Add("oauth_signature_method", oauthsignaturemethod);
basestringParameters.Add("oauth_timestamp", oauthtimestamp);
basestringParameters.Add("oauth_token", oauthtoken);
//Build the signature string
string baseString = String.Empty;
baseString += "GET" + "&";
baseString += Uri.EscapeDataString(url.Split('?')[0]) + "&";
foreach (KeyValuePair<string, string> entry in basestringParameters)
{
baseString += Uri.EscapeDataString(entry.Key + "=" + entry.Value + "&");
}
//Remove the trailing ambersand char last 3 chars - %26
baseString = baseString.Substring(0, baseString.Length - 3);
//Build the signing key
string signingKey = Uri.EscapeDataString(oauthconsumersecret) +
"&" + Uri.EscapeDataString(oauthtokensecret);
//Sign the request
HMACSHA1 hasher = new HMACSHA1(new ASCIIEncoding().GetBytes(signingKey));
string oauthsignature = Convert.ToBase64String(
hasher.ComputeHash(new ASCIIEncoding().GetBytes(baseString)));
//Tell Twitter we don't do the 100 continue thing
ServicePointManager.Expect100Continue = false;
//authorization header
HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(@url);
string authorizationHeaderParams = String.Empty;
authorizationHeaderParams += "OAuth ";
authorizationHeaderParams += "oauth_nonce=" + "\"" +
Uri.EscapeDataString(oauthnonce) + "\",";
authorizationHeaderParams += "oauth_signature_method=" + "\"" +
Uri.EscapeDataString(oauthsignaturemethod) + "\",";
authorizationHeaderParams += "oauth_timestamp=" + "\"" +
Uri.EscapeDataString(oauthtimestamp) + "\",";
authorizationHeaderParams += "oauth_consumer_key=" + "\"" +
Uri.EscapeDataString(oauthconsumerkey) + "\",";
authorizationHeaderParams += "oauth_token=" + "\"" +
Uri.EscapeDataString(oauthtoken) + "\",";
authorizationHeaderParams += "oauth_signature=" + "\"" +
Uri.EscapeDataString(oauthsignature) + "\",";
authorizationHeaderParams += "oauth_version=" + "\"" +
Uri.EscapeDataString(oauthversion) + "\"";
webRequest.Headers.Add("Authorization", authorizationHeaderParams);
webRequest.Method = "GET";
webRequest.ContentType = "application/x-www-form-urlencoded";
//Allow us a reasonable timeout in case Twitter's busy
webRequest.Timeout = 3 * 60 * 1000;
try
{
//Proxy settings
webRequest.Proxy = new WebProxy();
HttpWebResponse webResponse = webRequest.GetResponse() as HttpWebResponse;
Stream dataStream = webResponse.GetResponseStream();
// Open the stream using a StreamReader for easy access.
StreamReader reader = new StreamReader(dataStream);
// Read the content.
string responseFromServer = reader.ReadToEnd();
CreatePostslist(responseFromServer, page_name);
}
catch (Exception ex)
{
Panel2_Clear();
lblPagePostsMsg2.Text = " Not a valid Page URL ";
lblPagePostsMsg2.Visible = true;
}
}
/// <summary>
/// Creates a signature value given a signature base and the consumer secret and a known token secret.
/// </summary>
/// <seealso cref="http://oauth.net/core/1.0#rfc.section.9.2"/>
/// <param name="signatureMethod">The hashing method</param>
/// <param name="signatureTreatment">The treatment to use on a signature value</param>
/// <param name="signatureBase">The signature base</param>
/// <param name="consumerSecret">The consumer secret</param>
/// <param name="tokenSecret">The token secret</param>
/// <returns></returns>
public static string GetSignature(OAuthSignatureMethod signatureMethod,
OAuthSignatureTreatment signatureTreatment,
string signatureBase,
string consumerSecret,
string tokenSecret)
{
if (tokenSecret.IsNullOrBlank())
{
tokenSecret = String.Empty;
}
consumerSecret = UrlEncodeRelaxed(consumerSecret);
tokenSecret = UrlEncodeRelaxed(tokenSecret);
string signature;
switch (signatureMethod)
{
case OAuthSignatureMethod.HmacSha1:
{
var crypto = new HMACSHA1();
var key = "{0}&{1}".FormatWith(consumerSecret, tokenSecret);
crypto.Key = _encoding.GetBytes(key);
signature = signatureBase.HashWith(crypto);
break;
}
default:
throw new NotImplementedException("Only HMAC-SHA1 is currently supported.");
}
var result = signatureTreatment == OAuthSignatureTreatment.Escaped
? UrlEncodeRelaxed(signature)
: signature;
return result;
}
public void UploadToS3Worker(FileInfo Info, string KeyId, string AccessKey, string BucketName, string FolderName )
{
Log(" Uploading " + Info.Name);
// force upload files even if the timestamps haven't changed.
string TimeStamp = string.Format("{0:r}", DateTime.UtcNow);
string ContentType = "";
if (MimeTypeMapping.ContainsKey(Info.Extension))
{
ContentType = MimeTypeMapping[Info.Extension];
}
else
{
// default
ContentType = "application/octet-stream";
}
// URL to put things.
string URL = "http://" + BucketName + ".s3.amazonaws.com/" + FolderName + "/" + Info.Name;
HttpWebRequest Request = (HttpWebRequest)WebRequest.Create(URL);
// Upload.
Request.Method = "PUT";
Request.Headers["x-amz-date"] = TimeStamp;
Request.Headers["x-amz-acl"] = "public-read"; // we probably want to make public read by default.
// set correct content encoding for compressed javascript.
if ( Info.Extension == ".gz")
{
Request.Headers["Content-Encoding"] = "gzip";
}
Request.ContentType = ContentType;
Request.ContentLength = Info.Length;
//http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html
// Find Base64Encoded data.
UTF8Encoding EncodingMethod = new UTF8Encoding();
HMACSHA1 Signature = new HMACSHA1 { Key = EncodingMethod.GetBytes(AccessKey) };
// don't change this string.
string RequestString = "PUT\n\n" + ContentType + "\n\nx-amz-acl:public-read\nx-amz-date:" + TimeStamp + "\n/"+ BucketName + "/" + FolderName + "/" + Info.Name;
Byte[] ComputedHash = Signature.ComputeHash(EncodingMethod.GetBytes(RequestString));
var Base64Encoded = Convert.ToBase64String(ComputedHash);
// final amz auth header.
Request.Headers["Authorization"] = "AWS " + KeyId + ":" + Base64Encoded;
try
{
// may fail for really big stuff. YMMV. May need Multi part approach, we will see.
Byte[] FileData = File.ReadAllBytes(Info.FullName);
var requestStream = Request.GetRequestStream();
requestStream.Write(FileData, 0, FileData.Length);
requestStream.Close();
using (var response = Request.GetResponse() as HttpWebResponse)
{
var reader = new StreamReader(response.GetResponseStream());
reader.ReadToEnd();
}
}
catch (Exception ex)
{
Log("Could not connect to S3, incorrect S3 Keys? " + ex.ToString());
throw ex;
}
Log(Info.Name + " has been uploaded " );
}
private string EncodePassword(string password)
{
string encodedPassword = password;
switch (PasswordFormat)
{
case MembershipPasswordFormat.Clear:
break;
case MembershipPasswordFormat.Encrypted:
encodedPassword =
Convert.ToBase64String(EncryptPassword(Encoding.Unicode.GetBytes(password)));
break;
case MembershipPasswordFormat.Hashed:
HMACSHA1 hash = new HMACSHA1();
hash.Key = HexToByte(machineKey.ValidationKey);
encodedPassword =
Convert.ToBase64String(hash.ComputeHash(Encoding.Unicode.GetBytes(password)));
break;
default:
throw new ProviderException("Unsupported password format.");
}
return encodedPassword;
}