DataFlex

Duplicate Java Secure Token Creation

See more RSA Examples

Demonstrates how to duplicate some Java code that creates an RSA signature to create a base64 token. DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoDt
    String sTimeCreated
    Handle hoSbToken
    Variant vCert
    Handle hoCert
    Handle hoRsa
    String sSignature
    String sToken
    String sTemp1
    Boolean bTemp1

    Move False To iSuccess

    // This requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // This example duplicates the following Java code:

    // public X509Certificate2 cert = new X509Certificate2(@"Some path to p12/p12file_name.p12","Password_for_p12"); 
    // 
    // public string GenerateSignToken(double timeValidityMin){ 
    //   string equalsSign = ":="; 
    //   string timeCreated = DateTime.Now.ToString("yyyy-MM-ddTHH:mm:ss.fffzzz"); 
    //   string tokenTimeInfo = "validityTimeMinutes" + equalsSign + timeValidityMin + ";"+"timeCreated" + equalsSign + timeCreated; 
    //   string signature = SignData(tokenTimeInfo); 
    //   string secureToken = tokenTimeInfo + ";" + "signature" + equalsSign + signature; 
    //   return Base64UrlEncode(secureToken); 
    // } 
    //  
    // public string SignData(string stringToSign){ 
    //   byte[] dataToSign = Encoding.UTF8.GetBytes(stringToSign); 
    //   RSACryptoServiceProvider privKey = (RSACryptoServiceProvider)cert.PrivateKey; 
    //   CspKeyContainerInfo containerInfo = new RSACryptoServiceProvider().CspKeyContainerInfo; 
    //   CspParameters cspparams = new CspParameters(containerInfo.ProviderType, containerInfo.ProviderName, privKey.CspKeyContainerInfo.KeyContainerName); 
    //   privKey = new RSACryptoServiceProvider(cspparams); 
    //   string id = CryptoConfig.MapNameToOID("SHA256"); 
    //   byte[] sign = privKey.SignData(dataToSign, id); 
    //   bool res = privKey.VerifyData(dataToSign, id, sign); 
    //   return Convert.ToBase64String(sign).Replace('+', '-').Replace('/', '_').Replace("=", ""); 
    // } 
    //  
    // private static string Base64UrlEncode(string input){ 
    //   var inputBytes = Encoding.UTF8.GetBytes(input); 
    //   return Convert.ToBase64String(inputBytes).Replace('+', '-').Replace('/', '_').Replace("=", ""); 
    // } 

    Get Create (RefClass(cComCkDateTime)) To hoDt
    If (Not(IsComObjectCreated(hoDt))) Begin
        Send CreateComObject of hoDt
    End
    Get ComSetFromCurrentSystemTime Of hoDt To iSuccess
    Get ComGetAsTimestamp Of hoDt True To sTimeCreated

    // Such as 2019-04-01T19:35:44-05:00
    Showln sTimeCreated

    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbToken
    If (Not(IsComObjectCreated(hoSbToken))) Begin
        Send CreateComObject of hoSbToken
    End
    Get ComAppend Of hoSbToken "validityTimeMinutes:=10.0;timeCreated:=" To iSuccess
    Get ComAppend Of hoSbToken sTimeCreated To iSuccess

    Get Create (RefClass(cComChilkatCert)) To hoCert
    If (Not(IsComObjectCreated(hoCert))) Begin
        Send CreateComObject of hoCert
    End
    Get ComLoadPfxFile Of hoCert "Some path to p12/p12file_name.p12" "Password_for_p12" To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoCert To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get Create (RefClass(cComChilkatRsa)) To hoRsa
    If (Not(IsComObjectCreated(hoRsa))) Begin
        Send CreateComObject of hoRsa
    End
    Get pvComObject of hoCert to vCert
    Get ComSetX509Cert Of hoRsa vCert True To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoRsa To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Set ComEncodingMode Of hoRsa To "base64url"

    Get ComGetAsString Of hoSbToken To sTemp1
    Get ComSignStringENC Of hoRsa sTemp1 "sha256" To sSignature
    Get ComLastMethodSuccess Of hoRsa To bTemp1
    If (bTemp1 = False) Begin
        Get ComLastErrorText Of hoRsa To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComAppend Of hoSbToken ";signature:=" To iSuccess
    Get ComAppend Of hoSbToken sSignature To iSuccess

    // Base64URL encode the result
    Get ComEncode Of hoSbToken "base64url" "utf-8" To iSuccess
    Get ComGetAsString Of hoSbToken To sToken

    Showln sToken


End_Procedure