Lockbox digital signature component problem
I'm evaluating TurboPower LockBox library for digital signing. I've created a 1024 bit RSA key and tried to sign a 260 bytes of text with it. After changing one or two characters in the text the signature is still valid for it. Is that ok? Or maybe it's a problem with this library. Changing even one character has a crucial effect. Do I need to create a larger key? UPDATE To test the library I used the demo application that comes with it. I have generated a 1024 RSA key pair and then tried the digital signing functions. First I've tried with a real 260 bit text file and found out that I can