Q: Where can I get an affordable code signing certificate to sign my java applet or application?

A: We got ours at https://author.tucows.com, the certificate is issued by Comodo, a trusted authority.

1 year Comodo Code Signing Certificate: $75.00
2 year Comodo Code Signing Certificate: $140.00
3 year Comodo Code Signing Certificate: $195.00

Code Signing enables software developers to digitally sign software and macros for secure delivery over the Internet. Customers who download digitally signed ActiveX controls, Java applets, dynamic link libraries, .cab files and .jar files from your site can be confident that code really comes from you and hasn’t been altered or corrupted since it was created and signed. Code Signing acts as a virtual “shrinkwrap” for your software: after you sign your code, if it is tampered with in any way, the digital signature will break and alert customers that the code has been altered and is not trustworthy.