Sudhi Herle f343d45a8e Add sender authenticated message integrity; fixup KDF ... - use HKDF for producing keys, nonces - add running hmac of plaintext; sender-sign the hmac as trailer - use header checksum as "salt" for data encryption keys, nonces - generate explicit nonce for wrapping root keys for each recipient (previous impl had brittleness)		2022-11-13 11:53:00 -08:00
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pb	Add sender authenticated message integrity; fixup KDF	2022-11-13 11:53:00 -08:00