/// <summary>
/// Computes a new hash of <paramref name="data"/> usign the <paramref name="key"/> specified.
/// </summary>
/// <param name="key">A byte array containing the key (secret) to use to generate a hash.</param>
/// <param name="data">A byte arrasy containing the data to be hashed.</param>
/// <returns>A new byte array containing the hash result.</returns>
public byte[] ComputeHash(byte[] key, byte[] data)
{
using (var hasher = new System.Security.Cryptography.HMACSHA1(key))
{
return(hasher.ComputeHash(data));
}
}
/// <summary>
/// Converts a string into a SHA-1 hash using a hash message authentication code (HMAC). Pass the secret key for the message as a parameter to the function.
/// </summary>
/// <param name="text">The input string</param>
/// <param name="secretKey">The secret key</param>
/// <returns>The `SHA-1` hash of the input string using a hash message authentication code (HMAC)</returns>
/// <remarks>
/// ```scriban-html
/// {{ "test" | string.hmac_sha1 "secret" }}
/// ```
/// ```html
/// 1aa349585ed7ecbd3b9c486a30067e395ca4b356
/// ```
/// </remarks>
public static string HmacSha1(string text, string secretKey)
{
using (var hsha1 = new System.Security.Cryptography.HMACSHA1(Encoding.UTF8.GetBytes(secretKey ?? string.Empty)))
{
return(Hash(hsha1, text));
}
}
public static string Sign(string value, string key)
{
using (var hmac = new System.Security.Cryptography.HMACSHA1(Encoding.ASCII.GetBytes(key)))
{
return(UrlEncodeTo64(hmac.ComputeHash(Encoding.ASCII.GetBytes(value))));
}
}
/// <summary>
/// Method to Sign your app key
/// This should be called with each URI resource
/// before sending any HTTP command to the remote server
/// </summary>
/// <param name="url"></param>
/// <param name="app"></param>
/// <returns></returns>
public static string Sign(string url)
{
try
{
// Add appSID parameter.
UriBuilder builder = new UriBuilder(url);
if (builder.Query != null && builder.Query.Length > 1)
builder.Query = builder.Query.Substring(1) + "&appSID=" + AsposeApp.AppSID;
else
builder.Query = "appSID=" + AsposeApp.AppSID;
// Remove final slash here as it can be added automatically.
builder.Path = builder.Path.TrimEnd('/');
// Compute the hash.
byte[] privateKey = System.Text.Encoding.UTF8.GetBytes(AsposeApp.AppKey);
System.Security.Cryptography.HMACSHA1 algorithm = new System.Security.Cryptography.HMACSHA1(privateKey);
//System.Text.ASCIIEncoding
byte[] sequence = System.Text.ASCIIEncoding.ASCII.GetBytes(builder.Uri.AbsoluteUri);
byte[] hash = algorithm.ComputeHash(sequence);
string signature = Convert.ToBase64String(hash);
// Remove invalid symbols.
signature = signature.TrimEnd('=');
signature = System.Web.HttpUtility.UrlEncode(signature);
// Convert codes to upper case as they can be updated automatically.
signature = System.Text.RegularExpressions.Regex.Replace(signature, "%[0-9a-f]{2}", e => e.Value.ToUpper());
//signature = System.Text.RegularExpressions.Regex.Replace(signature, "%[0-9a-f]{2}", delegate(string e){ e.Value.ToUpper()});
// Add the signature to query string.
return string.Format("{0}&signature={1}", builder.Uri.AbsoluteUri, signature);
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
public void AuthenticateRequest(WebRequest request, string base64Secret)
{
var secret = Convert.FromBase64String(base64Secret);
var hashingAlg = new System.Security.Cryptography.HMACSHA1(secret);
var canonHeaders = request.Headers.AllKeys
.Where(h => h.StartsWith("x-emc", StringComparison.InvariantCultureIgnoreCase))
.OrderBy(h => h.ToLowerInvariant())
.Select(h => h + ":" + request.Headers[h].Trim())
.Aggregate(string.Empty, (current, header) => current + header + "\n")
.TrimEnd('\n');
var contentType = request.ContentType ?? string.Empty;
var range = request.Headers["range"] ?? string.Empty;
var date = request.Headers["date"] ?? string.Empty;
var requestRelativeUri = Uri.UnescapeDataString(request.RequestUri.Segments.Aggregate(string.Empty, (current, segment) => current + segment) + request.RequestUri.Query);
var hashString = request.Method + "\n" +
contentType + "\n" +
range + "\n" +
date + "\n" +
requestRelativeUri + "\n" +
canonHeaders;
var signature = Convert.ToBase64String(hashingAlg.ComputeHash(Encoding.Default.GetBytes(hashString)));
request.Headers.Add("x-emc-signature", signature);
}
private string GenerateSignature(string encodedText)
{
var key = Environment.GetEnvironmentVariable("SECRET_ACCESS_KEY");
var hash = new System.Security.Cryptography.HMACSHA1(new ASCIIEncoding().GetBytes(key));
return(Convert.ToBase64String(hash.ComputeHash(new ASCIIEncoding().GetBytes(encodedText))));
}
public void AuthenticateRequest(WebRequest request, string base64Secret)
{
var secret = Convert.FromBase64String(base64Secret);
var hashingAlg = new System.Security.Cryptography.HMACSHA1(secret);
var canonHeaders = request.Headers.AllKeys
.Where(h => h.StartsWith("x-emc", StringComparison.InvariantCultureIgnoreCase))
.OrderBy(h => h.ToLowerInvariant())
.Select(h => h + ":" + request.Headers[h].Trim())
.Aggregate(string.Empty, (current, header) => current + header + "\n")
.TrimEnd('\n');
var contentType = request.ContentType ?? string.Empty;
var range = request.Headers["range"] ?? string.Empty;
var date = request.Headers["date"] ?? string.Empty;
var requestRelativeUri = Uri.UnescapeDataString(request.RequestUri.Segments.Aggregate(string.Empty, (current, segment) => current + segment) + request.RequestUri.Query);
var hashString = request.Method + "\n" +
contentType + "\n" +
range + "\n" +
date + "\n" +
requestRelativeUri + "\n" +
canonHeaders;
var signature = Convert.ToBase64String(hashingAlg.ComputeHash(Encoding.Default.GetBytes(hashString)));
request.Headers.Add("x-emc-signature", signature);
}
private static bool IsValidGithubMessage(string requestBody, string githubSignature, dynamic data)
{
if (requestBody == null)
{
throw new ArgumentNullException(nameof(requestBody));
}
var bodyBytes = System.Text.Encoding.ASCII.GetBytes(requestBody);
// string requestBody = System.Text.Encoding.UTF8.GetString(bodyBytes);
string signature;
var repoSecret = Environment.GetEnvironmentVariable(("SECRET_" + data.repository.name).ToUpper());
if (repoSecret == null)
{
_log.Info("Secret not found for repo " + data.repository.name);
return(false);
}
byte[] keyParts = System.Text.Encoding.ASCII.GetBytes(repoSecret);
using (var hmac = new System.Security.Cryptography.HMACSHA1(keyParts))
{
// We'll be a little lazy and take the performance hit of BitConverter
signature = "sha1=" + BitConverter.ToString(
hmac.ComputeHash(bodyBytes)).Replace("-", "");
}
return(string.Compare(githubSignature, signature, true) == 0);
}
public static int GetVerificationCode(int value, string secretStr)
{
byte[] val = new byte[8];
for (int i = 8; (i--) != 0; value >>= 8)
{
val[i] = (byte)(value & 0xFF);
}
byte[] secret = Base32Encoding.ToBytes(secretStr);
if (secret == null || secret.Length == 0)
{
return(-1);
}
System.Security.Cryptography.HMACSHA1 hmac = new System.Security.Cryptography.HMACSHA1(secret, true);
byte[] hash = hmac.ComputeHash(val);
int offset = hash[SHA1_DIGEST_LENGTH - 1] & 0xF;
uint truncatedHash = 0;
for (int i = 0; i < 4; ++i)
{
truncatedHash <<= 8;
truncatedHash |= hash[offset + i];
}
truncatedHash &= 0x7FFFFFFF;
truncatedHash %= 1000000;
return((int)truncatedHash);
}
public void ComputeHMACShortTermCredentials(byte [] bMsgBytes, int nLengthWithoutMessageIntegrity, string strPassword)
{
byte[] bKey = System.Text.UTF8Encoding.UTF8.GetBytes(strPassword);
System.Security.Cryptography.HMACSHA1 sha1 = new System.Security.Cryptography.HMACSHA1(bKey);
HMAC = sha1.ComputeHash(bMsgBytes, 0, nLengthWithoutMessageIntegrity);
}
string HmacSha1(string key, string text)
{
using (var mac = new System.Security.Cryptography.HMACSHA1(Encoding.UTF8.GetBytes(key)))
{
return(mac.ComputeHash(Encoding.UTF8.GetBytes(text)).Aggregate(string.Empty, (s, e) => { return s + e.ToString("x2"); }, m => m));
}
}
/// <summary>
/// Calculates the signature for an OAuth call.
/// </summary>
/// <param name="method">POST or GET method.</param>
/// <param name="url">The URL the request will be sent to.</param>
/// <param name="parameters">Parameters to be added to the signature.</param>
/// <param name="tokenSecret">The token secret (either request or access) for generating the SHA-1 key.</param>
/// <returns>Base64 encoded SHA-1 hash.</returns>
public string OAuthCalculateSignature(string method, string url, Dictionary<string, string> parameters, string oAuthAccessTokenSecret)
{
string baseString = "";
string key = ApiSecret + "&" + oAuthAccessTokenSecret;
byte[] keyBytes = System.Text.Encoding.UTF8.GetBytes(key);
SortedList<string, string> sorted = parameters.ToSortedList();
StringBuilder sb = new StringBuilder();
foreach (KeyValuePair<string, string> pair in sorted)
{
sb.Append(pair.Key);
sb.Append("=");
sb.Append(pair.Value.ToEscapeOAuth());
sb.Append("&");
}
//remove last &
sb.Remove(sb.Length - 1, 1);
baseString = method + "&" + url.ToEscapeOAuth() + "&" + sb.ToString().ToEscapeOAuth();
System.Security.Cryptography.HMACSHA1 sha1 = new System.Security.Cryptography.HMACSHA1(keyBytes);
byte[] hashBytes = sha1.ComputeHash(System.Text.Encoding.UTF8.GetBytes(baseString));
string hash = Convert.ToBase64String(hashBytes);
//Debug.WriteLine("key = " + key);
//Debug.WriteLine("base = " + baseString);
//Debug.WriteLine("sig = " + hash);
return hash;
}
/// <summary>
/// Operations to be performed during the upgrade process.
/// </summary>
public override void Up()
{
string qry = @"
SELECT
L.[Id]
,L.[Password]
,L.[Guid]
FROM
[UserLogin] L
INNER JOIN [EntityType] ET ON ET.[Id] = L.[entityTypeId] AND ET.[Guid] = '4E9B798F-BB68-4C0E-9707-0928D15AB020'
";
var rdr = Rock.Data.DbService.GetDataReader(qry, System.Data.CommandType.Text, null);
while (rdr.Read())
{
var hash = new System.Security.Cryptography.HMACSHA1();
hash.Key = HexToByte(rdr["Guid"].ToString().Replace("-", ""));
string oldPassword = rdr["Password"].ToString();
string newPassword = Convert.ToBase64String(hash.ComputeHash(Convert.FromBase64String(oldPassword)));
string updateQry = string.Format(@"
UPDATE
[UserLogin]
SET
[Password] = '{0}'
WHERE
[Id] = {1}
", newPassword, rdr["Id"].ToString());
Rock.Data.DbService.ExecuteCommand(updateQry, System.Data.CommandType.Text);
}
rdr.Close();
}
private static string GetContent(byte[] secret, HttpListenerRequest request)
{
var ms = new System.IO.MemoryStream();
request.InputStream.CopyTo(ms);
byte[] bytes = ms.ToArray();
(request.InputStream as IDisposable).Dispose();
var signature = request.Headers.Get("X-Signature");
if (secret != null)
{
using (var hmac = new System.Security.Cryptography.HMACSHA1(secret)) {
hmac.Initialize();
string result = BitConverter.ToString(
hmac.ComputeHash(bytes, 0, bytes.Length)
).Replace("-", "");
if (!string.Equals(
signature,
$"sha1={result}",
StringComparison.OrdinalIgnoreCase
))
{
return(null);
}
}
}
return(request.ContentEncoding.GetString(bytes));
}
/// <summary>
/// Hmac signin with
/// </summary>
/// <param name="dataToSign">payoad to compute</param>
/// <param name="keyBody">key</param>
/// <returns>bytes of computehash</returns>
private static byte[] SignWithHmac(byte[] dataToSign, byte[] keyBody)
{
using (var hmacAlgorithm = new System.Security.Cryptography.HMACSHA1(keyBody))
{
return(hmacAlgorithm.ComputeHash(dataToSign));
}
}
/// <summary>
/// Operations to be performed during the upgrade process.
/// </summary>
public override void Up()
{
string qry = @"
SELECT
L.[Id]
,L.[Password]
,L.[Guid]
FROM
[UserLogin] L
INNER JOIN [EntityType] ET ON ET.[Id] = L.[entityTypeId] AND ET.[Guid] = '4E9B798F-BB68-4C0E-9707-0928D15AB020'
";
var rdr = Rock.Data.DbService.GetDataReader( qry, System.Data.CommandType.Text, null );
while ( rdr.Read() )
{
var hash = new System.Security.Cryptography.HMACSHA1();
hash.Key = HexToByte( rdr["Guid"].ToString().Replace( "-", "" ) );
string oldPassword = rdr["Password"].ToString();
string newPassword = Convert.ToBase64String( hash.ComputeHash( Convert.FromBase64String( oldPassword ) ) );
string updateQry = string.Format( @"
UPDATE
[UserLogin]
SET
[Password] = '{0}'
WHERE
[Id] = {1}
", newPassword, rdr["Id"].ToString() );
Rock.Data.DbService.ExecuteCommand( updateQry, System.Data.CommandType.Text );
}
rdr.Close();
}
string GetDownloadAuthoritionKey(string filePath, DateTime?expired)
{
var bucket = _options.Bucket;
var appId = _options.AppId;
var secretId = _options.SecretId;
var secretKey = _options.SecretKey;
int e;
if (expired.HasValue)
{
e = Convert.ToInt32(Math.Floor(DateTimeUtils.ToUnixTime(expired.Value)));
}
else
{
e = 0;
}
string fileId = filePath;
var rdm = new Random().Next(Int32.MaxValue);
var plainText = "a=" + appId + "&k=" + secretId + "&e=" + e + "&t=" + Convert.ToInt32(Math.Floor(DateTimeUtils.ToUnixTime(DateTime.Now))) + "&r=" + rdm + "&f=" + fileId + "&b=" + bucket;
using (var mac = new System.Security.Cryptography.HMACSHA1(Encoding.UTF8.GetBytes(secretKey)))
{
var hash = mac.ComputeHash(Encoding.UTF8.GetBytes(plainText));
var pText = Encoding.UTF8.GetBytes(plainText);
var all = new byte[hash.Length + pText.Length];
Array.Copy(hash, 0, all, 0, hash.Length);
Array.Copy(pText, 0, all, hash.Length, pText.Length);
return(Convert.ToBase64String(all));
}
}
public void AuthenticateRequest(WebRequest request, string base64Secret)
{
var secret = Convert.FromBase64String(base64Secret);
//var url = Encoding.Default.GetBytes(request.RequestUri.ToString());
var hashingAlg = new System.Security.Cryptography.HMACSHA1(secret);
Convert.ToBase64String(hashingAlg.ComputeHash(Encoding.UTF8.GetBytes(request.RequestUri.ToString())));
}
protected override async Task <HttpResponseMessage> SendAsync(
HttpRequestMessage request,
CancellationToken cancellationToken)
{
var query = string.Format("{0}{1}devid={2}", request.RequestUri.PathAndQuery, request.RequestUri.PathAndQuery.Contains("?") ? "&" : "?", this.UserId);
var encoding = new ASCIIEncoding();
// encode key
byte[] apiKeyBytes = encoding.GetBytes(this.ApiKey);
// encode url
byte[] queryBytes = encoding.GetBytes(query);
byte[] tokenBytes = new System.Security.Cryptography.HMACSHA1(apiKeyBytes).ComputeHash(queryBytes);
var sb = new StringBuilder();
// convert signature to string
Array.ForEach <byte>(tokenBytes, x => sb.Append(x.ToString("X2")));
// add signature to url
var signature = string.Format("{0}&signature={1}", query, sb.ToString());
var r = $"{request.RequestUri.GetLeftPart(UriPartial.Authority)}{signature}";
request.RequestUri = new Uri(r);
return(await base.SendAsync(request, cancellationToken));
}
private void CreatePasswordHash(string password, out byte[] passwordHash, out byte[] passwordSalt)
{
using (var hmac = new System.Security.Cryptography.HMACSHA1()){
passwordSalt = hmac.Key;
passwordHash = hmac.ComputeHash(System.Text.Encoding.UTF8.GetBytes(password));
}
}
/// <summary>
/// Generates AuthenticationHeaderValue to authorize requests to twitter API.
/// (https://developer.twitter.com/en/docs/basics/authentication/guides/authorizing-a-request)
/// </summary>
/// <param name="requestParameters">The custom parameters of the request.</param>
/// <param name="httpMethod">The http method of the request.</param>
/// <param name="url">The url to which the request will be made.</param>
/// <returns>AuthenticationHeaderValue with the parameters to authorize the request.</returns>
public AuthenticationHeaderValue getAuthenticationHeaderValue(
Dictionary <string, string> requestParameters, string httpMethod, string url)
{
//USER-AUTHENTICATION(https://developer.twitter.com/en/docs/basics/authentication/guides/authorizing-a-request)
//CREATE SIGNATURE(https://developer.twitter.com/en/docs/basics/authentication/guides/creating-a-signature.html)
// 1) Percent Encode all parameters:
Dictionary <string, string> allEncodedParameters = new Dictionary <string, string>();
foreach (var x in OAuthUtil.paramatersDic.Concat(requestParameters))
{
allEncodedParameters.Add(PercentEncode(x.Key), PercentEncode(x.Value));
}
// 2) get signature base string:
string allParameterString = AggregateParameters(allEncodedParameters, "&");
string signature_base_string = PercentEncode(httpMethod) + "&" + PercentEncode(url) + "&" + PercentEncode(allParameterString);
// 3) get signing key:
string signingKey = PercentEncode(OAuthUtil.OAUTH_CONSUMER_SECRET) + "&" + PercentEncode(OAuthUtil.OAUTH_SECRET);
// 4) calculate oauth_signature [HMACSHA1]:
var aux = new System.Security.Cryptography.HMACSHA1(Encoding.ASCII.GetBytes(signingKey));
var hashValue = aux.ComputeHash(Encoding.ASCII.GetBytes(signature_base_string));
string oauth_signature = Convert.ToBase64String(hashValue);
// 5) generate AuthenticationHeaderValue:
Dictionary <string, string> oauthDic = new Dictionary <string, string>(allEncodedParameters); //include request parameters!
oauthDic.Add(PercentEncode("oauth_signature"), PercentEncode(oauth_signature));
string oauthFinalString = AggregateParameters(oauthDic, ", ", true);
return(new System.Net.Http.Headers.AuthenticationHeaderValue("OAuth", oauthFinalString));
}
public static string sign(String data, String appSecret)
{
System.Security.Cryptography.HMACSHA1 hmacsha1 = new System.Security.Cryptography.HMACSHA1();
hmacsha1.Key = Encoding.UTF8.GetBytes(appSecret);
byte[] dataBuffer = Encoding.UTF8.GetBytes(data);
byte[] hashBytes = hmacsha1.ComputeHash(dataBuffer);
return byteToHexStr(hashBytes);
}
public static string sign(String data, String appSecret)
{
System.Security.Cryptography.HMACSHA1 hmacsha1 = new System.Security.Cryptography.HMACSHA1();
hmacsha1.Key = Encoding.UTF8.GetBytes(appSecret);
byte[] dataBuffer = Encoding.UTF8.GetBytes(data);
byte[] hashBytes = hmacsha1.ComputeHash(dataBuffer);
return(byteToHexStr(hashBytes));
}
public static byte[] SHA1(byte[] Data, byte[] Key, int Offset, int Length)
{
byte[] destinationArray = new byte[Data.Length];
Array.Copy(Data, Offset, destinationArray, 0, Data.Length);
byte[] array = new System.Security.Cryptography.HMACSHA1(Key).ComputeHash(destinationArray);
Array.Resize <byte>(ref array, 0x10);
return(array);
}
internal static string Sha1Hash(byte[] key, string basestring)
{
var sha1 = new System.Security.Cryptography.HMACSHA1(key);
var hashBytes = sha1.ComputeHash(Encoding.UTF8.GetBytes(basestring));
return(Convert.ToBase64String(hashBytes));
}
private string Hmac_Sha1AndBase64(string Source, string SecretKey)
{
System.Security.Cryptography.HMACSHA1 hmacsha1 = new System.Security.Cryptography.HMACSHA1();
hmacsha1.Key = System.Text.Encoding.ASCII.GetBytes(SecretKey);
byte[] dataBuffer = System.Text.Encoding.ASCII.GetBytes(Source); //signatureBase要进行签名的基础字符串
byte[] hashBytes = hmacsha1.ComputeHash(dataBuffer);
return(Convert.ToBase64String(hashBytes));
}
public static string HMACSHA1(string value, string salt)
{
byte[] inBuf = Encoding.UTF8.GetBytes(value);
System.Security.Cryptography.HMACSHA1 sha1 = new System.Security.Cryptography.HMACSHA1(Encoding.UTF8.GetBytes(salt));
var hash = sha1.ComputeHash(inBuf);
return(OtpTools.ByteArrayToHexString(hash));
}
public static String HmacSha1(String value, String key)
{
byte[] keyBytes = Encoding.UTF8.GetBytes(key);
var mac = new System.Security.Cryptography.HMACSHA1(keyBytes);
byte[] rawHmac = mac.ComputeHash(Encoding.UTF8.GetBytes(value));
return(Base64Util.Base64(rawHmac));
}
public static string GetSig(string policyStr, string secretKey)
{
policyStr = GetBase64_string(policyStr);
var signature = new System.Security.Cryptography.HMACSHA1(GetBase64(secretKey));
var bytes = GetBase64(policyStr);
var moreBytes = signature.ComputeHash(bytes);
var encodedCanonical = Convert.ToBase64String(moreBytes);
return encodedCanonical;
}
public string Encrypt(Encoding encode, string text, string key)
{
using (var sha = new System.Security.Cryptography.HMACSHA1(encode.GetBytes(key)))
{
var hash = sha.ComputeHash(encode.GetBytes(text));
return(ByteToString.Convert(hash));
}
}
public static string HMACSHA1(string text, string passKey)
{
var provider = new System.Security.Cryptography.HMACSHA1(Encoding.ASCII.GetBytes(passKey));
provider.Initialize();
var binary = provider.ComputeHash(Encoding.ASCII.GetBytes(text));
return(Convert.ToBase64String(binary));
}
public string awsGetSHA1AuthorizationValue(string sAWSSecretAccessKey, string sStringToSign)
{
System.Security.Cryptography.HMACSHA1 MySigner =
new System.Security.Cryptography.HMACSHA1(System.Text.Encoding.UTF8.GetBytes(sAWSSecretAccessKey));
string SignatureValue =
Convert.ToBase64String(MySigner.ComputeHash(System.Text.Encoding.UTF8.GetBytes(sStringToSign)));
return(SignatureValue);
}
public static byte[] GenerateHMACSHA1Signature(this string content, string sigKey)
{
var hmac = new System.Security.Cryptography.HMACSHA1();
hmac.Key = Encoding.UTF8.GetBytes(sigKey);
var contentBytes = Encoding.UTF8.GetBytes(content);
return(hmac.ComputeHash(contentBytes));
}
/// <summary>
/// HmacSha1签名算法
/// </summary>
/// <param name="key">密钥</param>
/// <param name="data">要签名的数据</param>
/// <returns></returns>
private static string HmacSha1Sign(string key, string data)
{
var signer = new System.Security.Cryptography.HMACSHA1();
signer.Key = Encoding.UTF8.GetBytes(key.ToCharArray());
return(Convert.ToBase64String(
signer.ComputeHash(Encoding.UTF8.GetBytes(data.ToCharArray()))));
}
public static string GetSig(string policyStr, string secretKey)
{
policyStr = GetBase64_string(policyStr);
var signature = new System.Security.Cryptography.HMACSHA1(GetBase64(secretKey));
var bytes = GetBase64(policyStr);
var moreBytes = signature.ComputeHash(bytes);
var encodedCanonical = Convert.ToBase64String(moreBytes);
return(encodedCanonical);
}
public static String Sign(String signatureBaseString, String signingKey)
{
Byte[] keyBytes = System.Text.Encoding.ASCII.GetBytes(signingKey);
using (var myhmacsha1 = new System.Security.Cryptography.HMACSHA1(keyBytes))
{
Byte[] byteArray = System.Text.Encoding.ASCII.GetBytes(signatureBaseString);
Byte[] signedValue = myhmacsha1.ComputeHash(byteArray);//stream);
return(Convert.ToBase64String(signedValue));
}
}
private static string SignCompute(string accessSecret, string stringToSign)
{
var hmacsha1 = new System.Security.Cryptography.HMACSHA1 {
Key = Encoding.UTF8.GetBytes(accessSecret)
};
var dataBuffer = Encoding.UTF8.GetBytes(stringToSign);
var hashBytes = hmacsha1.ComputeHash(dataBuffer);
return(Convert.ToBase64String(hashBytes));
}
internal static byte[] ComputeHmacSha1Hash(byte[] data, byte[] key)
{
Contract.Requires(data != null);
Contract.Requires(key != null);
Contract.Ensures(Contract.Result<byte[]>() != null);
using (var crypto = new System.Security.Cryptography.HMACSHA1(key))
{
return crypto.ComputeHash(data);
}
}
public string AuthenticateRequest(string queryString, string base64Secret)
{
var queryBytes = Encoding.UTF8.GetBytes(queryString.ToLower());
var secret = Encoding.UTF8.GetBytes(base64Secret);
var hashingAlg = new System.Security.Cryptography.HMACSHA1(secret);
var hashedQuery = hashingAlg.ComputeHash(queryBytes);
var base64Hash = Convert.ToBase64String(hashedQuery);
var signature = Uri.EscapeDataString(base64Hash);
return signature;
}
public void Configuration(IAppBuilder app)
{
AsyncOAuth.OAuthUtility.ComputeHash = (key, buffer) =>
{
using (var hmac = new System.Security.Cryptography.HMACSHA1(key))
{
return hmac.ComputeHash(buffer);
}
};
ConfigureAuth(app);
}
/// <summary>
/// Gets a HMAC-SHA1 hash for an OAuth request.
/// </summary>
/// <param name="consumerSecret">
/// The consumer secret.
/// </param>
/// <param name="oauthSecret">
/// The OAuth secret.
/// </param>
/// <param name="signatureBaseString">
/// The signature base string for which to compute the hash.
/// </param>
/// <returns>
/// A HMAC-SHA1 hash of <paramref name="signatureBaseString"/>.
/// </returns>
public string ComputeHash(string consumerSecret, string oauthSecret, string signatureBaseString)
{
if (signatureBaseString == null)
return null;
byte[] key = Encoding.UTF8.GetBytes(String.Format("{0}&{1}", consumerSecret, oauthSecret));
using (System.Security.Cryptography.HMACSHA1 sha1 = new System.Security.Cryptography.HMACSHA1(key))
{
byte[] signatureBaseStringHash = sha1.ComputeHash(Encoding.UTF8.GetBytes(signatureBaseString));
return Convert.ToBase64String(signatureBaseStringHash);
}
}
public void Initialize(byte[] sessionKey)
{
// create RC4-drop[1024] stream
using(HMACSHA1 outputHMAC = new HMACSHA1(encryptionKey))
encryptionStream = new ARC4(outputHMAC.ComputeHash(sessionKey));
encryptionStream.Process(new byte[1024], 0, 1024);
// create RC4-drop[1024] stream
using(HMACSHA1 inputHMAC = new HMACSHA1(decryptionKey))
decryptionStream = new ARC4(inputHMAC.ComputeHash(sessionKey));
decryptionStream.Process(new byte[1024], 0, 1024);
Status = AuthStatus.Ready;
}
/// <summary>
/// Creates an HMAC-SHA1 hash from an array of parameters and a security token.
/// </summary>
/// <param name="paramList">The parameters to be hashed</param>
/// <param name="signingKey">The Subscriber's unique signing key.</param>
/// <returns>The BASE64-encoded HMAC</returns>
public static string CalculateHMAC(string signingKey, params object[] paramList)
{
byte[] key = Encoding.UTF8.GetBytes(signingKey);
string stringToSign = Canonicalize(paramList);
byte[] bytesToSign = Encoding.UTF8.GetBytes(stringToSign);
byte[] signature;
using (var hmac = new System.Security.Cryptography.HMACSHA1(key))
{
signature = hmac.ComputeHash(bytesToSign);
}
return System.Convert.ToBase64String(signature);
}
/// <summary>
/// Operations to be performed during the upgrade process.
/// </summary>
public override void Up()
{
// Update the Admin's password to be encoded using the current passwordKey setting in web.config
string encryptionKey = System.Configuration.ConfigurationManager.AppSettings["PasswordKey"];
if ( !String.IsNullOrWhiteSpace( encryptionKey ) )
{
var hash = new System.Security.Cryptography.HMACSHA1();
hash.Key = Encryption.HexToByte( encryptionKey );
string newPassword = Convert.ToBase64String( hash.ComputeHash( System.Text.Encoding.Unicode.GetBytes( "admin" ) ) );
Sql( string.Format( "Update [UserLogin] SET [Password] = '{0}' WHERE [UserName] = 'Admin'", newPassword ) );
}
AddColumn("dbo.GroupLocation", "GroupMemberPersonId", c => c.Int());
CreateIndex("dbo.GroupLocation", "GroupMemberPersonId");
AddForeignKey("dbo.GroupLocation", "GroupMemberPersonId", "dbo.Person", "Id", cascadeDelete: true);
}
/// <summary>
/// Calculates the signature for an OAuth call.
/// </summary>
/// <param name="method">POST or GET method.</param>
/// <param name="url">The URL the request will be sent to.</param>
/// <param name="parameters">Parameters to be added to the signature.</param>
/// <param name="tokenSecret">The token secret (either request or access) for generating the SHA-1 key.</param>
/// <returns>Base64 encoded SHA-1 hash.</returns>
public string OAuthCalculateSignature(string method, string url, Dictionary<string, string> parameters, string tokenSecret)
{
string baseString = "";
string key = ApiSecret + "&" + tokenSecret;
byte[] keyBytes = System.Text.Encoding.UTF8.GetBytes(key);
#if !SILVERLIGHT
SortedList<string, string> sorted = new SortedList<string, string>();
foreach (KeyValuePair<string, string> pair in parameters) { sorted.Add(pair.Key, pair.Value); }
#else
var sorted = parameters.OrderBy(p => p.Key);
#endif
StringBuilder sb = new StringBuilder();
foreach (KeyValuePair<string, string> pair in sorted)
{
sb.Append(pair.Key);
sb.Append("=");
sb.Append(UtilityMethods.EscapeOAuthString(pair.Value));
sb.Append("&");
}
sb.Remove(sb.Length - 1, 1);
baseString = method + "&" + UtilityMethods.EscapeOAuthString(url) + "&" + UtilityMethods.EscapeOAuthString(sb.ToString());
#if WindowsCE
FlickrNet.Security.Cryptography.HMACSHA1 sha1 = new FlickrNet.Security.Cryptography.HMACSHA1(keyBytes);
#else
System.Security.Cryptography.HMACSHA1 sha1 = new System.Security.Cryptography.HMACSHA1(keyBytes);
#endif
byte[] hashBytes = sha1.ComputeHash(System.Text.Encoding.UTF8.GetBytes(baseString));
string hash = Convert.ToBase64String(hashBytes);
Debug.WriteLine("key = " + key);
Debug.WriteLine("base = " + baseString);
Debug.WriteLine("sig = " + hash);
return hash;
}
public App()
{
UnhandledException += Application_UnhandledException;
InitializeComponent();
InitializePhoneApplication();
InitializeLanguage();
// initialize computehash function
OAuthUtility.ComputeHash = (key, buffer) => { using (var hmac = new System.Security.Cryptography.HMACSHA1(key)) { return hmac.ComputeHash(buffer); } };
if (Debugger.IsAttached)
{
Application.Current.Host.Settings.EnableFrameRateCounter = true;
PhoneApplicationService.Current.UserIdleDetectionMode = IdleDetectionMode.Disabled;
}
}
public MACSHA1(byte[] key) {
_algorithm = new HMACSHA1(key);
}
//I have no idea how this works, but it takes the signing key and uses
//it to create somesort of cryptokey and then applies it to the
//basestring and then returns the b64 version of it.
public static string Sign(string signatureBaseString, string signingKey)
{
var keyBytes = System.Text.Encoding.ASCII.GetBytes(signingKey);
using (var myhmacsha1 = new System.Security.Cryptography.HMACSHA1(keyBytes)) {
byte[] byteArray = System.Text.Encoding.ASCII.GetBytes(signatureBaseString);
var stream = new MemoryStream(byteArray);
var signedValue = myhmacsha1.ComputeHash(stream);
var result = Convert.ToBase64String(signedValue, Base64FormattingOptions.None);
return result;
}
}
public static String Sign(String signatureBaseString, String signingKey)
{
Byte[] keyBytes = System.Text.Encoding.ASCII.GetBytes(signingKey);
using (var myhmacsha1 = new System.Security.Cryptography.HMACSHA1(keyBytes))
{
Byte[] byteArray = System.Text.Encoding.ASCII.GetBytes(signatureBaseString);
Byte[] signedValue = myhmacsha1.ComputeHash(byteArray);//stream);
return Convert.ToBase64String(signedValue);
}
}
protected void decode(int stanzaSize, bool useDecrypt)
{
int size = stanzaSize;
byte[] data = new byte[size];
byte[] dataReal = null;
Buffer.BlockCopy(this.buffer.ToArray(), 0, data, 0, size);
byte[] packet = new byte[size - 4];
byte[] hashServerByte = new byte[4];
Buffer.BlockCopy(data, 0, hashServerByte, 0, 4);
Buffer.BlockCopy(data, 4, packet, 0, size - 4);
System.Security.Cryptography.HMACSHA1 h = new System.Security.Cryptography.HMACSHA1(this.Encryptionkey);
byte[] hashByte = new byte[4];
Buffer.BlockCopy(h.ComputeHash(packet, 0, packet.Length), 0, hashByte, 0, 4);
if (hashServerByte.SequenceEqual(hashByte))
{
this.buffer.RemoveRange(0, 4);
if (useDecrypt)
{
dataReal = Encryption.WhatsappDecrypt(this.Encryptionkey, packet);
}
else
{
dataReal = Encryption.WhatsappEncrypt(this.Encryptionkey, packet, true);
//dataReal = new byte[foo.Length - 4];
//Buffer.BlockCopy(foo, 0, dataReal, 0, dataReal.Length);
}
for (int i = 0; i < size - 4; i++)
{
this.buffer[i] = dataReal[i];
}
}
else
{
throw new Exception("Hash doesnt match");
}
}
/// <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>
protected virtual string CreateSignature( 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 = this.CreateQueryString( 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, this.UrlEncode( url ), this.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 = this.UrlEncode( this.consumerSecret ) + "&";
if ( !string.IsNullOrEmpty( tokenSecret ) )
key += this.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 ComputeHMACShortTermCredentials(byte [] bMsgBytes, int nLengthWithoutMessageIntegrity, string strPassword)
{
byte[] bKey = System.Text.UTF8Encoding.UTF8.GetBytes(strPassword);
System.Security.Cryptography.HMACSHA1 sha1 = new System.Security.Cryptography.HMACSHA1(bKey);
HMAC = sha1.ComputeHash(bMsgBytes, 0, nLengthWithoutMessageIntegrity);
}
public void ComputeHMACShortTermCredentials(STUNMessage msgWithoutHMAC, int nLengthWithoutMessageIntegrity, string strPassword)
{
if (strPassword == null)
strPassword = "";
/// No MD5 on short term credentials
byte[] bKey = System.Text.UTF8Encoding.UTF8.GetBytes(strPassword);
byte[] bBytes = msgWithoutHMAC.Bytes;
System.Security.Cryptography.HMACSHA1 sha1 = new System.Security.Cryptography.HMACSHA1(bKey);
HMAC = sha1.ComputeHash(bBytes, 0, nLengthWithoutMessageIntegrity);
}
/// <summary>
/// Generate a Totp using provided binary data.
/// </summary>
/// <param name="key">Binary data.</param>
/// <returns>Time-based One Time Password.</returns>
public string Generate(byte[] key)
{
System.Security.Cryptography.HMACSHA1 hmac = new System.Security.Cryptography.HMACSHA1(key, true); //Instanciates a new hash provider with a key.
byte[] hash = hmac.ComputeHash(GetBytes((ulong)Counter)); //Generates hash from key using counter.
hmac.Clear(); //Clear hash instance securing the key.
int offset = hash[hash.Length - 1] & 0xf; //Math.
int binary = //Math.
((hash[offset] & 0x7f) << 24) //Math.
| ((hash[offset + 1] & 0xff) << 16) //Math.
| ((hash[offset + 2] & 0xff) << 8) //Math.
| (hash[offset + 3] & 0xff); //Math.
int password = binary % (int)Math.Pow(10, _Length); //Math.
return password.ToString(new string('0', _Length)); //Math.
}
private static byte[] GetHMAC(byte[] key, byte[] counter)
{
System.Security.Cryptography.HMACSHA1 hmac = new System.Security.Cryptography.HMACSHA1(key, true);
return hmac.ComputeHash(counter);
}
string SignString( string toSign, string withKey )
{
// sign parameter string
byte[] sigBase = UTF8Encoding.UTF8.GetBytes ( toSign );
MemoryStream ms = new MemoryStream();
ms.Write (sigBase, 0, sigBase.Length );
byte[] key = UTF8Encoding.UTF8.GetBytes ( withKey );
System.Security.Cryptography.HMACSHA1 sha1 = new System.Security.Cryptography.HMACSHA1( key );
byte[] hashBytes = sha1.ComputeHash ( sigBase );
return System.Convert.ToBase64String( hashBytes );
}
/// <summary>
/// Signs the specified data (in string format) with HMAC-SHA1 algorithm and the specified <paramref name="signKey"/>.
/// </summary>
/// <param name="data">The data to be signed.</param>
/// <param name="signKey">The sign key.</param>
/// <returns>The base64 format signature string.</returns>
private static string Sign(string data, string signKey)
{
var dataBytes = Encoding.ASCII.GetBytes(data);
var signKeyBytes = Encoding.ASCII.GetBytes(signKey);
var algorithm = new System.Security.Cryptography.HMACSHA1(signKeyBytes);
var result = Convert.ToBase64String(algorithm.ComputeHash(dataBytes));
return result;
}
public void ComputeHMACLongTermCredentials(STUNMessage msgWithoutHMAC, int nLengthWithoutMessageIntegrity, string strUserName, string strRealm, string strPassword)
{
string strKey = string.Format("{0}:{1}:{2}", strUserName, strRealm, strPassword);
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bKey = md5.ComputeHash(System.Text.UTF8Encoding.UTF8.GetBytes(strKey));
byte[] bBytes = msgWithoutHMAC.Bytes;
System.Security.Cryptography.HMACSHA1 sha1 = new System.Security.Cryptography.HMACSHA1(bKey);
HMAC = sha1.ComputeHash(bBytes, 0, nLengthWithoutMessageIntegrity);
}
public WebResponse SendRequest(String twitterSreenName)
{
try
{
var oauth_token = "1594158649-FN2fYJKW8aLJopq81cD0HZbUylDtpmIVbOU9KJR";
var oauth_token_secret = "0t14X8BvUJmyCu5loN5itfH97QejFjzS0xDTaptu8";
var oauth_consumer_key = "ui7oDxGwLbcoPzQmUuA";
var oauth_consumer_secret = "Xe68RKvQ77NpXbmcGvUTvcScLT2wWQTFxrp6ckxUzM";
var oauth_version = "1.0";
var oauth_signature_method = "HMAC-SHA1";
var oauth_nonce = Convert.ToBase64String(
new System.Text.ASCIIEncoding().GetBytes(
DateTime.Now.Ticks.ToString()));
var timeSpan = DateTime.UtcNow
- new DateTime(1970, 1, 1, 0, 0, 0, 0,
DateTimeKind.Utc);
var oauth_timestamp = Convert.ToInt64(timeSpan.TotalSeconds).ToString();
//var slug = "libraries-and-news-sites";
var owner_screen_name = twitterSreenName;
var resource_url = "https://api.twitter.com/1.1/statuses/user_timeline.json";
var baseFormat = "oauth_consumer_key={0}&oauth_nonce={1}&oauth_signature_method={2}" +
"&oauth_timestamp={3}&oauth_token={4}&oauth_version={5}&screen_name={6}";
var baseString = string.Format(baseFormat,
oauth_consumer_key,
oauth_nonce,
oauth_signature_method,
oauth_timestamp,
oauth_token,
oauth_version,
Uri.EscapeDataString(owner_screen_name)
);
baseString = string.Concat("GET&", Uri.EscapeDataString(resource_url),
"&", Uri.EscapeDataString(baseString));
var compositeKey = string.Concat(Uri.EscapeDataString(oauth_consumer_secret),
"&", Uri.EscapeDataString(oauth_token_secret));
string oauth_signature;
using (System.Security.Cryptography.HMACSHA1 hasher = new System.Security.Cryptography.HMACSHA1(System.Text.ASCIIEncoding.ASCII.GetBytes(compositeKey)))
{
oauth_signature = Convert.ToBase64String(
hasher.ComputeHash(System.Text.ASCIIEncoding.ASCII.GetBytes(baseString)));
}
var headerFormat = "OAuth oauth_consumer_key=\"{0}\", oauth_nonce=\"{1}\", oauth_signature=\"{2}\", oauth_signature_method=\"{3}\", oauth_timestamp=\"{4}\", oauth_token=\"{5}\", oauth_version=\"{6}\"";
var authHeader = string.Format(headerFormat,
Uri.EscapeDataString(oauth_consumer_key),
Uri.EscapeDataString(oauth_nonce),
Uri.EscapeDataString(oauth_signature),
Uri.EscapeDataString(oauth_signature_method),
Uri.EscapeDataString(oauth_timestamp),
Uri.EscapeDataString(oauth_token),
Uri.EscapeDataString(oauth_version)
);
ServicePointManager.Expect100Continue = false;
var getBody = "?screen_name=" + Uri.EscapeDataString(owner_screen_name);
resource_url += getBody;
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(resource_url);
request.Headers.Add("Authorization", authHeader);
request.Method = "GET";
request.ContentType = "application/x-www-form-urlencoded";
WebResponse response = request.GetResponse();
return response;
}
catch (Exception ex)
{
throw ex;
}
}
public static HttpWebRequest AddOAuth(this HttpWebRequest req, string pData, string ConsumerKey, string ConsumerSecret, string AccessToken, string AccessTokenSecret)
{
string nonce = new Random().Next(Int16.MaxValue, Int32.MaxValue).ToString("X", System.Globalization.CultureInfo.InvariantCulture);
string timeStamp = DateTime.UtcNow.ToUnixTimeStamp().ToString();
// Create the base string. This is the string that will be hashed for the signature.
Dictionary<string, string> param = new Dictionary<string, string>();
param.Add("oauth_consumer_key", ConsumerKey);
param.Add("oauth_nonce", nonce);
param.Add("oauth_signature_method", "HMAC-SHA1");
param.Add("oauth_timestamp", timeStamp);
if (!string.IsNullOrEmpty(AccessToken))
param.Add("oauth_token", AccessToken);
param.Add("oauth_version", "1.0");
pData += req.RequestUri.Query;
foreach (string kv in pData.Replace("?", "&").Split('&'))
{
string[] akv = kv.Split('=');
if (akv.Length == 2)
{
param.Add(akv[0], akv[1].PercentDecode());
}
}
StringBuilder sParam = new StringBuilder(); ;
foreach (KeyValuePair<string, string> p in param.OrderBy(k => k.Key))
{
if (sParam.Length > 0)
sParam.Append("&");
sParam.AppendFormat("{0}={1}", p.Key.PercentEncode(), p.Value.PercentEncode());
}
string url = req.RequestUri.AbsoluteUri;
if (!string.IsNullOrEmpty(req.RequestUri.Query))
{
url = url.Replace(req.RequestUri.Query, "");
}
string signatureBaseString
= string.Format("{0}&{1}&{2}",
req.Method.ToUpper(),
url.PercentEncode(),
sParam.ToString().PercentEncode()
);
// Create our hash key (you might say this is a password)
string signatureKey = string.Format("{0}&{1}", ConsumerSecret.PercentEncode(), AccessTokenSecret.PercentEncode());
// Generate the hash
System.Security.Cryptography.HMACSHA1 hmacsha1 = new System.Security.Cryptography.HMACSHA1(Encoding.UTF8.GetBytes(signatureKey));
byte[] signatureBytes = hmacsha1.ComputeHash(Encoding.UTF8.GetBytes(signatureBaseString));
string signature = Convert.ToBase64String(signatureBytes).PercentEncode();
string at = string.IsNullOrEmpty(AccessToken) ? "" : string.Format("oauth_token=\"{0}\",", AccessToken);
string oauth = "OAuth realm=\"{0}\",oauth_consumer_key=\"{1}\",oauth_nonce=\"{2}\",oauth_signature_method=\"HMAC-SHA1\",oauth_timestamp=\"{3}\",{4}oauth_version=\"1.0\",oauth_signature=\"{5}\"";
oauth = string.Format(oauth, "Spiral16", ConsumerKey, nonce, timeStamp, at, signature);
req.Headers.Add("Authorization", oauth);
req.ContentType = "application/x-www-form-urlencoded";
return req;
}