Addons for amazonka-s3 to support client-side encryption. This allows the use of a client-side master key to encrypt/decrypt data locally and store encrypted data in S3 to be later decrypt by any other client with access to the same master key. Unencrypted object data or keys are not sent to Amazon S3 using this method, but object metadata is transmitted in plaintext.

Encryption and decryption are done in a streaming fashion, with encrypted requests being incrementally signed using the version 4 signature algorithm and sent via chunked-encoding.

The client-side master key you provide can be a symmetric key, an asymmetric public/private key pair, or a KMS master key.

This library is designed to be compatible with the official Java AWS SDK (both V1 and V2 envelopes), but only a limited set of the possible encryption options are supported. Therefore assuming defaults, objects stored with this library should be retrievable by any of the other official SDKs, and vice versa. The metadata can be attached as header metadata on the stored object or as a separate JSON instructions file. PutObject, GetObject, and the various multipart upload operations are supported.

See Amazonka.S3.Encryption to get started.

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