Commit Graph

6 Commits

Author SHA1 Message Date
Manuel Pégourié-Gonnard
95d0bdbd84 Adapt the _ALT style to our new standard
- in .h files: only put the context declaration inside the #ifdef _ALT
  (this was changed in 2.9.0, ie after the original PR)
- in .c file: only leave selftest out of _ALT: even though some function are
  trivial to build from other parts, alt implementors might want to go another
way about them (for efficiency or other reasons)
2018-05-24 13:37:31 +02:00
Daniel King
e6e7968c3a Minor style and formatting fixes.
This change corrects some minor style violations, mostly for spacing
around parentheses.
2018-05-24 13:37:31 +02:00
Daniel King
b6897f67a4 Correct signedness of printf specifier in self tests 2018-05-24 13:37:31 +02:00
Daniel King
dedf4a3e7b Adjust verbose self-test output to match other ciphers. 2018-05-24 13:37:31 +02:00
Daniel King
a310c5e42b Allow some parameters to be NULL if the length is 0.
This change permits users of the ChaCha20/Poly1305 algorithms
(and the AEAD construction thereof) to pass NULL pointers for
data that they do not need, and avoids the need to provide a valid
buffer for data that is not used.
2018-05-24 13:37:31 +02:00
Daniel King
b8025c5826 Implement AEAD-ChaCha20-Poly1305.
This implementation is based off the description in RFC 7539.

The ChaCha20 code is also updated to provide a means of generating
keystream blocks with arbitrary counter values. This is used to
generated the one-time Poly1305 key in the AEAD construction.
2018-05-24 13:37:31 +02:00