diff options
| author | cinap_lenrek <cinap_lenrek@felloff.net> | 2017-12-31 09:06:42 +0100 |
|---|---|---|
| committer | cinap_lenrek <cinap_lenrek@felloff.net> | 2017-12-31 09:06:42 +0100 |
| commit | c039b52fc3d7c225fe8b6f88f21df83ac26d5984 (patch) | |
| tree | bed796d3111679d359851521644fbbee2378f200 /sys/include/libc.h | |
| parent | ee89c82dd35475b93dd67773b7d10e461921a734 (diff) | |
libc: constant time implementation for encode(2) routines, fix base32
the string encoding functions touch secret key material
in a bunch of places (devtls, devcap), so make sure we do
not leak information by cache timing side channels, making
the encoding and decoding routines constant time.
we also expose the alphabets through encXchr()/decXchr()
functions so caller can find the end of a encoded string
before calling decode function (for libmp).
the base32 encoding was broken in several ways. inputs
lengths of len%5 == [2,3,4] had output truncated and
it was using non-standard alphabet. documenting the alphabet
change in the manpage.
Diffstat (limited to 'sys/include/libc.h')
| -rw-r--r-- | sys/include/libc.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/include/libc.h b/sys/include/libc.h index 33d0dbaef..98226dc05 100644 --- a/sys/include/libc.h +++ b/sys/include/libc.h @@ -369,6 +369,12 @@ extern int dec32(uchar*, int, char*, int); extern int enc32(char*, int, uchar*, int); extern int dec16(uchar*, int, char*, int); extern int enc16(char*, int, uchar*, int); +extern int dec64chr(int); +extern int enc64chr(int); +extern int dec32chr(int); +extern int enc32chr(int); +extern int dec16chr(int); +extern int enc16chr(int); extern int encodefmt(Fmt*); extern void exits(char*); extern double frexp(double, int*); |