Module encryption

Collection of encryption-related data structures and algorithms used in the Solana zk-token protocol.

The module contains implementations of the following cryptographic objects:

• Pedersen commitments that uses the prime-order Ristretto representation of Curve25519. curve25519-dalek is used for the Ristretto group implementation.
• The twisted ElGamal scheme, which converts Pedersen commitments into a public-key encryption scheme.
• Basic type-wrapper around the AES-GCM-SIV symmetric authenticated encryption scheme implemented by aes-gcm-siv crate.

Modules

auth_encryption

Authenticated encryption implementation.

discrete_log

The discrete log implementation for the twisted ElGamal decryption.

elgamal

The twisted ElGamal encryption implementation.

grouped_elgamal

The twisted ElGamal group encryption implementation.

pedersen

Pedersen commitment implementation using the Ristretto prime-order group.