HmacSha256HashComputer | C# Online Compiler

HmacSha256HashComputer by Areeba Khalid

using System;
using System.Security.Cryptography;
using System.Text;

class Program
{
    static void Main() {
         string signingKey = "siging key";
 string request = "{\r\n    \"specversion\": \"1.0\",\r\n    \"type\": \"message.created\",\r\n    \"source\": \"/imap/emails/incremental\",\r\n    \"id\": \"e8ACX8C9FVBLa4yyPob27j5164\",\r\n    \"time\": 1733945164,\r\n    \"webhook_delivery_attempt\": 1,\r\n    \"data\": {\r\n        \"application_id\": \"7aebc399-9af9-4854-b1b2-0494497c8aa5\",\r\n        \"object\": {\r\n            \"attachments\": [],\r\n            \"body\": \"<html>\\r\\n<head>\\r\\n<meta http-equiv=\\\"Content-Type\\\" content=\\\"text/html; charset=iso-8859-1\\\">\\r\\n<style type=\\\"text/css\\\" style=\\\"display:none;\\\"> P {margin-top:0;margin-bottom:0;} </style>\\r\\n</head>\\r\\n<body dir=\\\"ltr\\\">\\r\\n<div class=\\\"elementToProof\\\" style=\\\"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);\\\">\\r\\na</div>\\r\\n<div id=\\\"appendonsend\\\"></div>\\r\\n<div style=\\\"font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)\\\">\\r\\n<br>\\r\\n</div>\\r\\n<hr tabindex=\\\"-1\\\" style=\\\"display:inline-block; width:98%\\\">\\r\\n<div id=\\\"divRplyFwdMsg\\\" dir=\\\"ltr\\\"><font face=\\\"Calibri, sans-serif\\\" color=\\\"#000000\\\" style=\\\"font-size:11pt\\\"><b>From:</b> Areeba Khalid &lt;areeba.khalid.syeda@gmail.com&gt;<br>\\r\\n<b>Sent:</b> Thursday, December 12, 2024 11:12 AM<br>\\r\\n<b>To:</b> Areeba Khalid &lt;areeba.khalid@ids-astra.com&gt;<br>\\r\\n<b>Subject:</b> test</font>\\r\\n<div>&nbsp;</div>\\r\\n</div>\\r\\n<div>\\r\\n<div dir=\\\"ltr\\\">aaa</div>\\r\\n</div>\\r\\n</body>\\r\\n</html>\\r\\n\",\r\n            \"date\": 1734027181,\r\n            \"folders\": [\r\n                \"INBOX\"\r\n            ],\r\n            \"from\": [\r\n                {\r\n                    \"email\": \"areeba.khalid@ids-astra.com\",\r\n                    \"name\": \"Areeba Khalid\"\r\n                }\r\n            ],\r\n            \"grant_id\": \"34b8ebd4-b61c-4e6e-be65-255faa59c238\",\r\n            \"id\": \"193bc130ae1bdb46-TEST\",\r\n            \"object\": \"message\",\r\n            \"reply_to\": [\r\n                {\r\n                    \"email\": \"areeba.khalid@ids-astra.com\"\r\n                }\r\n            ],\r\n            \"snippet\": \"Great, thanks!         From: areeba.ids@yahoo.com &lt;areeba.ids@yahoo.com&gt; Sent: Wednesday, December 11, 2024 12:19 PM To: Areeba Khalid &lt;areeba.khalid@ids-astra.com&gt; Subject: Re: t\",\r\n            \"starred\": false,\r\n            \"subject\": \"Re: test email\",\r\n            \"thread_id\": \"<2ihs9ry4o2hl0qkboo0pb11oi.D693V57SSAPS.ref@yahoo.com>\",\r\n            \"to\": [\r\n                {\r\n                    \"name\": \"Areeba Khalid\",\r\n                    \"email\": \"areeba.khalid.syeda@gmail.com\"\r\n                }\r\n            ],\r\n            \"unread\": true\r\n        }\r\n    }\r\n}";
            
        string signature = HmacSha256HashComputer.ComputeHexEncodedSignature(signingKey, request);
        Console.WriteLine(signature);
    }
}

public static class HmacSha256HashComputer
{
    public static string ComputeHexEncodedSignature(string signingKey, string input)
    {
        if (string.IsNullOrEmpty(input) || string.IsNullOrEmpty(signingKey))
            return string.Empty;

        using HMACSHA256 hmac = new(Encoding.UTF8.GetBytes(signingKey));
        byte[] data = Encoding.UTF8.GetBytes(input);
        byte[] computedHash = hmac.ComputeHash(data);
        return BitConverter.ToString(computedHash).Replace("-", "").ToLower();
    }
}

​x
 
using System;
using System.Security.Cryptography;
using System.Text;
​
class Program
{
    static void Main() {
         string signingKey = "siging key";
 string request = "{\r\n    \"specversion\": \"1.0\",\r\n    \"type\": \"message.created\",\r\n    \"source\": \"/imap/emails/incremental\",\r\n    \"id\": \"e8ACX8C9FVBLa4yyPob27j5164\",\r\n    \"time\": 1733945164,\r\n    \"webhook_delivery_attempt\": 1,\r\n    \"data\": {\r\n        \"application_id\": \"7aebc399-9af9-4854-b1b2-0494497c8aa5\",\r\n        \"object\": {\r\n            \"attachments\": [],\r\n            \"body\": \"<html>\\r\\n<head>\\r\\n<meta http-equiv=\\\"Content-Type\\\" content=\\\"text/html; charset=iso-8859-1\\\">\\r\\n<style type=\\\"text/css\\\" style=\\\"display:none;\\\"> P {margin-top:0;margin-bottom:0;} </style>\\r\\n</head>\\r\\n<body dir=\\\"ltr\\\">\\r\\n<div class=\\\"elementToProof\\\" style=\\\"font-family: Aptos, Aptos_EmbeddedFont, Aptos_MSFontService, Calibri, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);\\\">\\r\\na</div>\\r\\n<div id=\\\"appendonsend\\\"></div>\\r\\n<div style=\\\"font-family:Aptos,Aptos_EmbeddedFont,Aptos_MSFontService,Calibri,Helvetica,sans-serif; font-size:12pt; color:rgb(0,0,0)\\\">\\r\\n<br>\\r\\n</div>\\r\\n<hr tabindex=\\\"-1\\\" style=\\\"display:inline-block; width:98%\\\">\\r\\n<div id=\\\"divRplyFwdMsg\\\" dir=\\\"ltr\\\"><font face=\\\"Calibri, sans-serif\\\" color=\\\"#000000\\\" style=\\\"font-size:11pt\\\"><b>From:</b> Areeba Khalid &lt;areeba.khalid.syeda@gmail.com&gt;<br>\\r\\n<b>Sent:</b> Thursday, December 12, 2024 11:12 AM<br>\\r\\n<b>To:</b> Areeba Khalid &lt;areeba.khalid@ids-astra.com&gt;<br>\\r\\n<b>Subject:</b> test</font>\\r\\n<div>&nbsp;</div>\\r\\n</div>\\r\\n<div>\\r\\n<div dir=\\\"ltr\\\">aaa</div>\\r\\n</div>\\r\\n</body>\\r\\n</html>\\r\\n\",\r\n            \"date\": 1734027181,\r\n            \"folders\": [\r\n                \"INBOX\"\r\n            ],\r\n            \"from\": [\r\n                {\r\n                    \"email\": \"areeba.khalid@ids-astra.com\",\r\n                    \"name\": \"Areeba Khalid\"\r\n                }\r\n            ],\r\n            \"grant_id\": \"34b8ebd4-b61c-4e6e-be65-255faa59c238\",\r\n            \"id\": \"193bc130ae1bdb46-TEST\",\r\n            \"object\": \"message\",\r\n            \"reply_to\": [\r\n                {\r\n                    \"email\": \"areeba.khalid@ids-astra.com\"\r\n                }\r\n            ],\r\n            \"snippet\": \"Great, thanks!         From: areeba.ids@yahoo.com &lt;areeba.ids@yahoo.com&gt; Sent: Wednesday, December 11, 2024 12:19 PM To: Areeba Khalid &lt;areeba.khalid@ids-astra.com&gt; Subject: Re: t\",\r\n            \"starred\": false,\r\n            \"subject\": \"Re: test email\",\r\n            \"thread_id\": \"<2ihs9ry4o2hl0qkboo0pb11oi.D693V57SSAPS.ref@yahoo.com>\",\r\n            \"to\": [\r\n                {\r\n                    \"name\": \"Areeba Khalid\",\r\n                    \"email\": \"areeba.khalid.syeda@gmail.com\"\r\n                }\r\n            ],\r\n            \"unread\": true\r\n        }\r\n    }\r\n}";
            
        string signature = HmacSha256HashComputer.ComputeHexEncodedSignature(signingKey, request);
        Console.WriteLine(signature);
    }
}
​
public static class HmacSha256HashComputer
{
    public static string ComputeHexEncodedSignature(string signingKey, string input)
    {
        if (string.IsNullOrEmpty(input) || string.IsNullOrEmpty(signingKey))
            return string.Empty;
​
        using HMACSHA256 hmac = new(Encoding.UTF8.GetBytes(signingKey));
        byte[] data = Encoding.UTF8.GetBytes(input);
        byte[] computedHash = hmac.ComputeHash(data);
        return BitConverter.ToString(computedHash).Replace("-", "").ToLower();
    }
}

Compilation error (line 7, col 4): The type or namespace name 'BankingMenu' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 8, col 4): The type or namespace name 'BankingSystem' could not be found (are you missing a using directive or an assembly reference?)
Compilation error (line 17, col 24): The name 'Console' does not exist in the current context
Compilation error (line 18, col 22): The name 'Convert' does not exist in the current context
Compilation error (line 27, col 19): The name 'Console' does not exist in the current context
Compilation error (line 28, col 27): The name 'Convert' does not exist in the current context
Compilation error (line 37, col 19): The name 'Console' does not exist in the current context
Compilation error (line 38, col 28): The name 'Convert' does not exist in the current context

Last Run:	9:29:42 pm
Compile:	0.005s
Execute:	0s
Memory:	0b
CPU:	0s

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