My goal is to digitally sign a form on the client side and then send it to the server for verification.
I have incorporated the crypto.signText() function into my code, but I am encountering an issue where the form does not prompt me to select a certificate when submitted.
Here is the relevant snippet of my code:
signature = theWindow.crypto.signText(res, "ask");
It seems that the behavior of data signing is heavily influenced by the browser being used.
Exploring the optimal method for digitally signing data in web forms using user certificates
As a result, it may be more advantageous to utilize a Java applet as opposed to implementing signature capabilities in JavaScript.
Link to resource for more information
When using the crypto.signText function, there is a caOption parameter that can be specified:
resultString = [window.]crypto.signText(stringToSign, caOption, [caNameString1, [caNameString2, . . . ]])
Do you need assistance with coding the prompt text?
<HTML>
<HEAD>
<SCRIPT>
var bar = crypto.signText("Invoice\n--------------------\n5 Chairs $200.00\n1 Desk $500.00\n3 Lamps $150.00\n--------------------\nTotal Cost $850.00", "query");
</SCRIPT>
</HEAD>
<BODY>
Here lies an HTML document<p>
<SCRIPT>
document.write(bar);
</SCRIPT>
</BODY>
</HTML>
To enable the crypto.signText function, it is necessary to import your certificate into the browser's certificate library.
For Firefox users, navigate to preferences, advanced, Certificates.
Import your .p12 certificate file and consider adjusting the trust settings for the server certificate.
I have not achieved full functionality yet, as I am prompted to select a certificate (providing the imported one) and enter a password that is unfortunately not accepted. This may be due to my self-made server certificate not being recognized by the browser.
Here is an interesting link (in Spanish):
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