Hi Everyone,
I'm working on ChaCha20Poly1305 authenticated encryption from RFC 8439. The
class was added at https://github.com/weidai11/cryptopp/issues/724 and
https://github.com/weidai11/cryptopp/commit/315e54e63d58, and a minimal
wiki page was added https://www.cryptopp.com/wiki/ChaCha20Poly1305.
Encrypt and Decrypt is fine using:
ChaCha20Poly1305::Encryption enc;
...
enc.EncryptAndAuthenticate(...);
And:
ChaCha20Poly1305::Decryption dec;
...
bool result = dec.DecryptAndVerify(...);
I'm working on one problem, though. Verification is failing when using
filters. For some reason comparison of the existing MAC and the newly
calculated MAC is failing because the existing MAC is empty in the
VerificationFilter (derp...).
Hold-off on using ChaCha20Poly1305 for the time being until I get to the
bottom of the filter issue (or use one-shot EncryptAndAuthenticate and
DecryptAndVerify).
Jeff
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