About GPG Key Manager
GPG Key Manager is an offline OpenPGP toolkit for creating and managing keys, encrypting text, and working with signatures on Android. Users can create key pairs using Ed25519 for signing with X25519 for encryption, or use RSA keys up to 4096 bits. Public and private keys can be listed, viewed, imported, and exported in ASCII-armored form. Text can be encrypted for a recipient using their public key and decrypted by the intended recipient using the corresponding private key and passphrase. Users can sign text with a private key and verify signatures with a public key, helping check authorship and whether signed content has changed. The app describes encrypted storage for private keys and says the passphrase is not saved. Cryptographic operations run locally; the app requests no permissions and makes no network calls. It supports light and dark themes, dynamic colors on newer Android versions, and many interface languages. GPG Key Manager is intended for users who understand key exchange and passphrase protection; recipients need the matching keys and compatible OpenPGP tools to use encrypted messages.
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