Commit graph

7 commits

Author SHA1 Message Date
Manuel Pégourié-Gonnard
89b8d83723 cmac: make subkey gen more constant-time
The previous version had secret-dependent memory accesses. While it was
probably not an issue in practice cause the two bytes of the array are
probably on the same cache line anyway, as a matter of principle this should
be avoided.
2016-10-13 13:51:08 +01:00
Manuel Pégourié-Gonnard
28ea791521 cmac: zeroize sensitive intermediate values 2016-10-13 13:51:08 +01:00
Manuel Pégourié-Gonnard
756bcf7631 cmac: factor multiply by u to its own function
We're doing exactly the same operation for K1 and K2.
2016-10-13 13:51:08 +01:00
Manuel Pégourié-Gonnard
a4dfa0550f cmac: fix whitespace/codingstyle issues 2016-10-13 13:51:08 +01:00
Manuel Pégourié-Gonnard
9c83eebe67 cmac: improve argument order and naming
- always use the pattern "buffer, length"
- avoid using unqualified "length" as a name when there are more than one
2016-10-13 13:51:08 +01:00
Robert Cragie
9bf1e5dd3b Line endings wrong 2016-10-13 13:51:08 +01:00
Robert Cragie
45feb6ef20 Add support for AES-128-CMAC and AES-CMAC-PRF-128 2016-10-13 13:51:07 +01:00