age

File encryption with age involves specifying a recipient's public key and the target document. The utility processes the input and outputs an encrypted file readable only by the matching private key holder.

Yes, age supports SSH public key integration, allowing you to use existing SSH keys as recipients for file encryption. This enables secure file sharing without generating new keypairs specifically for the encryption tool.

The best way to encrypt a single file for multiple recipients is using the age utility's multiple recipient feature. It allows you to specify several public keys simultaneously so each recipient can decrypt the same file independently.

Passphrase-based file decryption relies on a user-provided secret string, whereas keypair decryption requires the recipient's specific private key file. The age utility supports both methods for flexible secure data transfer and access control.

Yes, the age utility handles ASCII armor output and supports standard input/output pipelines. This makes it suitable for batch processing and secure data transfer across systems where binary data might be corrupted or unsupported.

Age provides a modern, robust alternative to GPG for file protection by focusing on simplicity and explicit configuration. It avoids complex option configurations and legacy protocol overhead while maintaining strong cryptography standards.