I started investing a not insignificant part of my salary into BTC a few years ago. I created 10 paper wallets (using bitcoinpaperwallet.com) on a dedicated laptop disconnected from the Internet. I then stored them in my office drawer however I no longer feel safe due to potential theft/elements etc. and I don't have access to a safety deposit box.
I want to digitize them and use strong encryption so I can store them on a few different servers that I own for redundancy. I don't need to regularly withdraw BTC from these wallets as they are for investment, I keep a separate small hot wallet on blockchain.info for spending. I'm confused as to how I should;
a) Digitize the paper wallets. I dont want to have to manually enter the private keys and make a mistake. Is there software I can run on the disconnected laptop that can scan the QR codes for the private keys using the webcam? I know blockchain.info does this but the laptop doesn't have Internet access. b) Once I have the private keys in a digital format (either in a plain text file or some wallet format) what form of encryption do you recommend. I'm currently planning on using PGP with 8k RSA keys.
Any advice would be most appreciated.