lock

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lock - encrypt and decrypt files using libsodium

REQUIREMENTS
    libsodium-dev

INSTALL
    make
    make install

UNINSTALL
    make uninstall

USAGE
    lock encrypt <file>
        Creates <file>.locked

    lock decrypt <file.locked>
        Creates <file> (strips .locked extension)

FILES
    /usr/local/bin/lock
    /usr/local/share/man/man1/lock.1

DESCRIPTION
    Encrypts and decrypts files using XChaCha20-Poly1305 AEAD with
    Argon2id key derivation. All secrets (passphrases, keys) are
    stored in locked memory and zeroed before deallocation.

    Encrypted files are base64-encoded and saved with a .locked
    suffix.