Use of Hybrid Public Key Encryption (HPKE) with JSON Web Encryption (JWE)

This specification defines how to use Hybrid Public Key Encryption (HPKE) with JSON Web Encryption (JWE). HPKE enables public key encryption of arbitrary-sized plaintexts to a recipient's public key, and provides security against adaptive chosen ciphertext attacks. This specification chooses a specific subset of the HPKE features to use with JWE. This specification updates RFC 7516 (JWE) to enable use of Integrated Encryption as a Key Management Mode.