온라인 MD5 해시 생성기

I need to send json data and receive response to/from a web server. I can communicate with the webserver, it gives me responses about the json (what to correct). At one moment it gives me the following error message:

Hash information not matching the message signature.

About this message, the documentation (sent by the owners of that webserver) says the following:

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The Repository system will verify the message checksum to ensure that the data was not tampered with between parts of the whole Repository system. Messages where the hash is not valid shall not be accepted. This integrity check ensures that the messages making up traffic cannot be altered in transit or within the parts of the Repository system, neither can messages be added or removed from the sequence, without detection. The client adds a MD5 hash to the X-OriginalHash HTTP header.

This structure is then added to the message

Message Header

| X-OriginalHash | 1234567890abcdefghijklmnopqrstuvwxyz |

| Content-Type | application/json |

| Authorization | < Token > |

=====================================

So, it says that I should add an MD5 hash to that HTTP header. But I can’t fiind the solution to this.

My code is as follows:

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private void sendDataToWebserver(){    token = myFunctionToGetOauthToken();    byte[] byteBodyProd = Encoding.UTF8.GetBytes(requestTextBox.Text);    HttpWebRequest bearerReqProd = WebRequest.Create("https://webserver.com") as HttpWebRequest;    bearerReqProd.Method = "POST";    bearerReqProd.PreAuthenticate = true;    bearerReqProd.ContentType = "application/json";    bearerReqProd.ContentLength = byteBodyProd.Length;    bearerReqProd.Headers.Add("Authorization", token);    bearerReqProd.Headers.Add("grant_type", "client_credentials");    bearerReqProd.Headers.Add("cache-control", "no-cache");    bearerReqProd.Headers.Add("X-OriginalHash", CreateMD5(requestTextBox.Text));    Stream newStreamProd = bearerReqProd.GetRequestStream();    newStreamProd.Write(byteBodyProd, 0, byteBodyProd.Length);    WebResponse bearerRespProd = null;    try        bearerRespProd = bearerReqProd.GetResponse();    }    catch (WebException webErr)    {        string response;        using (var reader = new System.IO.StreamReader(webErr.Response.GetResponseStream()))        {            response = reader.ReadToEnd();            statusText.Text += "\r\n" + "responseProd=" + response.ToString();        }        statusText.Text += "\r\n" + "Eroare WebException(Prod): " + webErr.Message;        return;    }    catch (Exception err)    {        statusText.Text += "\r\n" + "Eroare Exception(Prod): " + err.Message;        return;    }    var responseProd = "";    using (var reader = new StreamReader(bearerRespProd.GetResponseStream(), Encoding.UTF8))    {        responseProd = reader.ReadToEnd();        statusText.Text += "\r\n" + "responseProd=" + responseProd.ToString();    }}   private string CreateMD5(string input)    {        // Use input string to calculate MD5 hash        using (System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create())        {            byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(input);            //byte[] inputBytes = System.Text.Encoding.UTF8.GetBytes(input);            byte[] hashBytes = md5.ComputeHash(inputBytes);            // Convert the byte array to hexadecimal string            StringBuilder sb = new StringBuilder();            for (int i = 0; i < hashBytes.Length; i++)            {                sb.Append(hashBytes[i].ToString("X2"));            }            return sb.ToString();        }    }

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The data to be sent is in the requestTextBox.Text and an example is :

{"ID1": "EO144IB3002",

"ID2": "FACILIB300",

"Event_Time": "19062320",

"Destination_ID1": "2"}

In the code above, the line of code which I produced for that MD5 hash specification is:

bearerReqProd.Headers.Add("X-OriginalHash", CreateMD5(requestTextBox.Text));

Is this the correct way ? It seems not to be, because I get the error.Is there any standard way in which I should do what they ask about adding MD5 hash HTTP header ?I also tried a lot of alternatives :

bearerReqProd.Headers.Add("X-OriginalHash", bearerReqProd.GetHashCode().ToString());bearerReqProd.Headers.Add("X-OriginalHash", System.Convert.ToBase64String(byteBodyProd));bearerReqProd.Headers.Add("X-OriginalHash", CreateMD5(System.Text.Encoding.UTF8.GetString(byteBodyProd, 0, byteBodyProd.Length)));bearerReqProd.Headers.Add("X-OriginalHash", CreateMD5(requestTextBox.Text));bearerReqProd.Headers.Add("X-OriginalHash", CreateMD5(requestTextBox.Text + "1234567890abcdefghijklmnopqrstuvwxyz"));bearerReqProd.Headers.Add("X-OriginalHash", CreateMD5(requestTextBox.Text) + "1234567890abcdefghijklmnopqrstuvwxyz");bearerReqProd.Headers.Add("X-OriginalHash", "1234567890abcdefghijklmnopqrstuvwxyz");bearerReqProd.Headers.Add("X-OriginalHash", CreateMD5("1234567890abcdefghijklmnopqrstuvwxyz"));bearerReqProd.Headers.Add("X-OriginalHash", Convert.ToBase64String(MD5.Create().ComputeHash(System.Text.Encoding.ASCII.GetBytes("1234567890abcdefghijklmnopqrstuvwxyz"))));

I know it’s an ugly way to try even what I didn’t think to be a solution… but when you don’t have any other solution and you don’t get what you need …

Thank you for any help !

I am currently working on a Java project and I can't get the http digest authentication working. I tried using the Apache website, but it didn't help. I have a site that requires HTTP digest authentication.

        DefaultHttpClient httpclient = new DefaultHttpClient();        String hostUrl = "http://somewebsite.com";        String postUrl = "http://somewebsite.com/request";        HttpPost httpPost = new HttpPost(postUrl);        String username = "hello";        String password = "world";        HttpHost targetHost = new HttpHost(hostUrl);        httpclient.getCredentialsProvider().setCredentials(                new AuthScope(hostUrl, AuthScope.ANY_PORT),                new UsernamePasswordCredentials(username, password));        AuthCache authCache = new BasicAuthCache();        DigestScheme digestAuth = new DigestScheme();        digestAuth.overrideParamter("realm", "some realm");        digestAuth.overrideParamter("nonce", "whatever");        authCache.put(targetHost, digestAuth);        BasicHttpContext localcontext = new BasicHttpContext();        localcontext.setAttribute(ClientContext.AUTH_CACHE, authCache);        // List<NameValuePair> nvps = new ArrayList<NameValuePair>();        // nvps.add(new BasicNameValuePair("username", "shirwa99@gmail.com"));        // nvps.add(new BasicNameValuePair("password", "example"));        // httpPost.setEntity(new UrlEncodedFormEntity(nvps));        HttpResponse response2 = httpclient.execute(httpPost);

hi I want to hash some string text, I used md5 But later I realized that it could not be decrypted.
also I tested the base64, but the number of characters is varies, long and Contains various characters like =
so i need to encrypt and decrypt string in android with following options:

• The number of characters that encrypted = 32 or 64 characters
• Security is not important
• Fast is important
• Similar to md5 and the output is just the number

Please introduce me if you know a library or code

How to write functionToGenerateMD5hash for this code? I already have fileVideo and I need to send the corresponding md5 hash to the server by clicking on the button.

$("#someButton").click(function() {var fr = new FileReader();      fr.onload = function(e) {                string md5 = functionToGenerateMD5hash(e.target.result);    // send md5 here};       fr.readAsArrayBuffer(fileVideo);

I want to get file md5 to encrypted transmission. First I try to use Java DigestInputStream class. Then I want to try it in Linux. Confused thing happens, it doesn't equal to the former!

public class SignHelper {    private static final String TYPE_MD5 = "MD5";    private static final String TYPE_SHA1 = "SHA1";    private static final char[] HEX_DIGITS = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'};    public static String encodeByteByMD5(byte[] bytes) {        return encodeByte(bytes, TYPE_MD5);    }    private static String encodeByte(byte[] bytes, String type) {        if (bytes == null) {            return null;        }        try {            MessageDigest messageDigest = MessageDigest.getInstance(type);            messageDigest.update(bytes);            return getFormattedText(messageDigest.digest());        } catch (Exception e) {            throw new RuntimeException(e);        }    }    public static String fileMD5(String path) throws Exception {        FileInputStream fileInputStream = new FileInputStream(path);        DigestInputStream digestInputStream = new DigestInputStream(fileInputStream, MessageDigest.getInstance("MD5"));        int length;        byte[] bytes = new byte[1024];        //error code, before        //while ((length = fileInputStream.read(bytes, 0, 1024)) != -1) {          // digestInputStream.read(bytes, 0, length);        //}        //change after, right        while (digestInputStream.read(bytes, 0, 1024) != -1);        MessageDigest messageDigest = digestInputStream.getMessageDigest();        return encodeByteByMD5(messageDigest.digest());    }    public static void main(String[] args) {        try {            System.out.println(fileMD5("/Users/xxx/package-lock.json"));        } catch (Exception e) {            e.printStackTrace();        }    }}

#shellmd5sum package-lock.json

In Java i get '59adb24ef3cdbe0297f05b395827453f', but 'd4c87581319e3785549f5eefa3c30bcc' in Linux. Who can help me, thank you!