GPG Key CRC32 Utility

The most secure material to store GPG keys is paper.

Printing is simple, but how to import keys from paper?

Usage

Export:

• Export GPG keys;
• Append CRC32 checksum to each line of a file; then
• Print it out, keep it at a safe place.

Import:

• Scan that paper;
• Verify the CRC32 checksum, and remove them, now we have the original file; then
• Import GPG keys.