How to make a Safe GPG key Backup
World Crypto Network
The guide covers setting up a secure GPG backup by creating a long-term master key with three expiring sub-keys (signing, encryption, authentication) that rotate annually. After verifying keys with `gpg --list-secret-keys` and exporting with the armor flag, users encrypt a USB backup using LUKS/cryptsetup with a high-entropy passphrase, partition it with fdisk, format with ext4, then copy their GP

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