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ActiveCipherStorage is a Ruby gem for Rails Active Storage encryption and decryption. It encrypts files before storage, decrypts them on read, and supports AWS S3, streaming downloads, multipart uploads, AES-256-GCM envelope encryption, AWS KMS, and custom key providers.

Start Here

• Rails Active Storage Encryption
• S3 Streaming and Multipart Uploads
• Key Management and Rotation

Common Use Cases

• Encrypt files uploaded through Rails Active Storage.
• Decrypt encrypted attachments transparently when downloading.
• Store encrypted files in Amazon S3 or S3-compatible storage.
• Stream large encrypted files without loading the whole file into memory.
• Rotate encrypted data keys without rewriting the full file body.

Project Links

• Repository: https://github.com/codebyjass/active-cipher-storage
• RubyGems: https://rubygems.org/gems/active_cipher_storage
• Security policy: https://github.com/codebyjass/active-cipher-storage/blob/main/SECURITY.md