Hi.
This looks like VERY GOOD piece of software, but I dont understand one thing

My tougths:

1.) Is it possible to recover part of private key, when I have valid address?

For example:
let's say one of my paper wallet is partialy destroyed, and I have lost 5 or more characters from private, like:

pub: 1DrqrF3JEYB9TXWymz4zGoEzM5i75JMLFB
priv: L3Wji4b***4Po3vo2gmi42Y2kbbxtnpAfQ5wJx11BgNr****8v3Q

Would be EXTREMALY usefull for paperwallet users!

Regards.