Age Encryption - Modern Encryption Tool

Basic Information

• Product Name: Age (Actually Good Encryption)
• Developer: Filippo Valsorda (former Go security team member)
• Country/Region: USA/Italy
• Official Website: https://age-encryption.org/
• GitHub: https://github.com/FiloSottile/age
• Type: Open-source modern file encryption tool
• License: BSD-3-Clause
• First Release: 2019

Product Description

Age is a simple, modern, and secure file encryption tool (also a Go library) designed with small, explicit keys, zero configuration options, and UNIX-style composability in mind. Age is designed as a modern alternative to GPG, removing GPG's complexity and providing a tool that "does one thing and does it well."

Core Features/Characteristics

• Minimalist Design: No configuration options, strong default security parameters
• Post-Quantum Support: Added ML-KEM-768-based post-quantum recipient (age1pq1... prefix) in v1.3.0
• Small Keys: Explicit, easy-to-manage key formats
• UNIX Composability: Designed for pipeline and script composition
• Plugin Architecture: Supports hardware keys like age-plugin-yubikey
• YubiKey Support: Supports hardware PIV tokens via plugins
• Streaming Encryption: Supports streaming encryption/decryption for large files
• Seeking Decryption: DecryptReaderAt API supports random access (e.g., zip files)

Key Formats

# Public Key (Recipient)
age1... (X25519)
age1pq1... (Post-quantum, ML-KEM-768 hybrid)

# Private Key (Identity)
AGE-SECRET-KEY-1...
AGE-SECRET-KEY-PQ-1... (Post-quantum)

Business Model

Completely free and open-source (BSD-3-Clause license). Filippo Valsorda earns income through independent maintainer sponsorships.

Pricing

Completely free.

Use Cases

• File and backup encryption
• Configuration file encryption with SOPS
• Encryption operations in scripts and automation
• SSH key reuse (supports ssh-rsa and ssh-ed25519)
• Secure transmission of sensitive data

Relationship with OpenClaw

1. Configuration Encryption: Use Age to encrypt OpenClaw's API keys and sensitive configurations
2. Backup Encryption: Encrypt OpenClaw's local database backups
3. SOPS Backend: Serve as SOPS's encryption backend to manage OpenClaw's configuration keys
4. Post-Quantum Security: Post-quantum support in v1.3.0 provides future-proof security for OpenClaw data
5. Automation-Friendly: Command-line tool easily integrates into OpenClaw's automation workflows

Advantages

• Minimalist design, almost zero learning curve
• Post-quantum encryption support (ML-KEM-768)
• No configuration files, avoiding configuration errors
• Good integration with ecosystems like SOPS and SSH keys
• Active development and maintenance
• BSD license, no usage restrictions

Limitations

• Only for file encryption, does not support email signing, etc.
• Does not support trust models like Web of Trust
• Ecosystem not as mature as GPG
• Does not support key server distribution
• Not suitable for scenarios requiring complex key management

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