using System;

using System.Linq;

using System.Text;

using System.Security.Cryptography;

public class Program

{

    public static void Main()

    {

        Encoding ascii = Encoding.ASCII;

​

        String client_secret = "secret";

​

​

        String requestBody = @"{""event_name"":""folder_sent"",""event_date"":1620666888484,""data"":{""folder"":{""folderId"":8817451,""folderName"":""Copy of Payer_Credentialing_Request_Form"",""folderCustomName"":""${doc_name}"",""folderPassword"":null,""folderAuthorId"":5416535,""folderAuthorFirstName"":""Jorge"",""folderAuthorLastName"":""Euceda"",""folderAuthorEmail"":""jeuceda@esigngenie.info"",""folderAuthorRole"":""super_admin"",""folderCompanyId"":148326,""folderCreationDate"":1620666888000,""folderSentDate"":1620666888000,""folderStatus"":""SHARED"",""custom_field1"":null,""custom_field2"":null,""folderDocumentIds"":[10439741],""documentsList"":[{""documentId"":10439741,""contractId"":10439741,""companyId"":148326,""contractCreatedBy"":5416535,""contractCreatedOn"":1620666887000,""contractType"":""Test"",""contractStatus"":""WAITING_FOR_SIGNATURE"",""editable"":false,""contractVersionId"":10439836,""contractVersionName"":""Copy of Payer_Credentialing_Request_Form"",""contractVersionDesc"":null,""versionCreatedby"":5416535,""versionCreatedOn"":1620666887000,""contractVersionNumber"":1,""contractTransactionSource"":null}],""folderRecipientParties"":[{""partyId"":5416535,""partyDetails"":{""partyId"":5416535,""firstName"":""Jorge"",""lastName"":""Euceda"",""emailId"":""jeuceda@esigngenie.info"",""placeholder"":false,""address"":"""",""dateCreated"":1620343248000,""optOutEmails"":false,""authenticationLevel"":""NO"",""passwordUpdateDate"":null,""passwordUpdateStatus"":false},""dialingCode"":""+1"",""mobileNumber"":null,""contractPermissions"":""FILL_FIELDS_ONLY"",""partySequence"":1,""workflowSignSequence"":1,""envelopeId"":8817451,""sharingMode"":""email"",""folderAccessURL"":null,""securityMode"":""none"",""extraComments"":null,""allowNameChange"":false,""signerNameUpdated"":false,""signerAuthenticationLevel"":""NO"",""signatureId"":null,""partyRole"":null},{""partyId"":5359392,""partyDetails"":{""partyId"":5359392,""firstName"":""Jorge"",""lastName"":""Euceda"",""emailId"":""jorgeluceda@gmail.com"",""placeholder"":false,""address"":null,""dateCreated"":1619368292000,""optOutEmails"":false,""authenticationLevel"":""NO"",""passwordUpdateDate"":null,""passwordUpdateStatus"":false},""dialingCode"":""+1"",""mobileNumber"":""5615922577"",""contractPermissions"":""FILL_FIELDS_ONLY"",""partySequence"":2,""workflowSignSequence"":2,""envelopeId"":8817451,""sharingMode"":""email"",""folderAccessURL"":null,""securityMode"":""none"",""extraComments"":null,""allowNameChange"":false,""signerNameUpdated"":false,""signerAuthenticationLevel"":""NO"",""signatureId"":null,""partyRole"":""Services representative""}],""folderAccessURLForAuthor"":null,""boardRoomSign"":false,""bulkId"":0,""enforceSignWorkflow"":false,""currentWorkflowStep"":1,""transactionSource"":""eSignGenieWebApp-via_templates:[186957]"",""editable"":false,""inPersonSignable"":false,""overrideAccountReminders"":false,""overrideAccountRecipientDelegation"":false,""allowRecipientsToDelegate"":false,""envelopeId"":8817451,""envelopeName"":""Copy of Payer_Credentialing_Request_Form"",""envelopeOriginatorId"":5416535,""envelopeCompanyId"":148326,""envelopeDate"":1620666888000,""envelopeSharedDate"":1620666888000,""envelopeStatus"":""SHARED"",""envelopeContractIds"":[10439741],""envelopePartyPermissions"":[{""partyId"":5416535,""partyDetails"":{""partyId"":5416535,""firstName"":""Jorge"",""lastName"":""Euceda"",""emailId"":""jeuceda@esigngenie.info"",""placeholder"":false,""address"":"""",""dateCreated"":1620343248000,""optOutEmails"":false,""authenticationLevel"":""NO"",""passwordUpdateDate"":null,""passwordUpdateStatus"":false},""dialingCode"":""+1"",""mobileNumber"":null,""contractPermissions"":""FILL_FIELDS_ONLY"",""partySequence"":1,""workflowSignSequence"":1,""envelopeId"":8817451,""sharingMode"":""email"",""folderAccessURL"":null,""securityMode"":""none"",""extraComments"":null,""allowNameChange"":false,""signerNameUpdated"":false,""signerAuthenticationLevel"":""NO"",""signatureId"":null,""partyRole"":null},{""partyId"":5359392,""partyDetails"":{""partyId"":5359392,""firstName"":""Jorge"",""lastName"":""Euceda"",""emailId"":""jorgeluceda@gmail.com"",""placeholder"":false,""address"":null,""dateCreated"":1619368292000,""optOutEmails"":false,""authenticationLevel"":""NO"",""passwordUpdateDate"":null,""passwordUpdateStatus"":false},""dialingCode"":""+1"",""mobileNumber"":""5615922577"",""contractPermissions"":""FILL_FIELDS_ONLY"",""partySequence"":2,""workflowSignSequence"":2,""envelopeId"":8817451,""sharingMode"":""email"",""folderAccessURL"":null,""securityMode"":""none"",""extraComments"":null,""allowNameChange"":false,""signerNameUpdated"":false,""signerAuthenticationLevel"":""NO"",""signatureId"":null,""partyRole"":""Services representative""}],""envelopeAuthenticationLevel"":""NO"",""allowSingleSignerInBulk"":false}}}";

​

        String requestSignature = "bc+u1d3OXXCA1wQ5Cv1YZTbFGA066pL2ftJKG1WDC0k=";

        HMACSHA256 hmac = new HMACSHA256(ascii.GetBytes(client_secret));

​

        String calc_sig = Convert.ToBase64String(hmac.ComputeHash(ascii.GetBytes(requestBody)));

​

        Console.WriteLine(requestBody);

        Console.WriteLine(calc_sig);

        Console.WriteLine(requestSignature);

        if (requestSignature == calc_sig) {

            Console.WriteLine("Matches");

​

        } else {

            Console.WriteLine("Does not match");

        }

    }

}