An implementation of [HPKE] using [Evercrypt].

This version is compatible with draft-12.

Supported HPKE modes

• Base
• PSK
• Auth
• AuthPSK

Supported cipher suites

KEM

• DH KEM x25519
• DH KEM P256

AEAD

• AES GCM 128
• AES GCM 256
• ChaCha20 Poly1305
• Exporter only

KDF

• HKDF SHA-256
• HKDF SHA-384
• HKDF SHA-512

Other Crypto Backend

Because [Evercrypt] does not support all platforms and algorithms at this point it is possible to use an alternative cryptography backend.

In order to use the alternative rust crypto backend, ([hkdf], [sha2], [p256], [p384], [x25519-dalek-ng], [chacha20poly1305], [aes-gcm]) the default features have to disabled and the rust-crypto feature has to be enabled. ignore cargo build --no-default-features --features="rust-crypto"