* frodwith/urcrypt: (75 commits)
move libaes_siv to deps
fix typo in urcrypt.h
libaes_siv now using tip of dfoxfranke master
check for recovery header presence in configure, put -O3 in flags, move pc to distcleanfiles
clean generated pkg-config file
update urbit's configure to use a liburcrypt version
add a versioning scheme to urcrypt
remove scrypt from urbit build (in urcrypt now)
move the rest of the scrypt jets to urcrypt, enable them, and correct the hoon test to match the source rfc.
scr-pbk->urcrypt
start scrypt porting
Squashed 'pkg/urcrypt/scrypt/' content from commit a402f4116
finish porting secp jets to urcrypt
pkg-config support for urcrypt, update urbit build
cosmetic configure things
require shared ssl when building a shared urcrypt
remove some old files
add autogen.sh
use srcdir in -I to support out of tree builds
whitespace and symbol cleanup
...
The secp core had some flaws: in particular, the logic for signing/recovery
did not match libsecbp256k1 w.r.t. the enigmatic "recid" (v) value. The jet
hints were also subtly wrong, in that the curve parameters were in a sample
(not an arm) and thus not matched by the jet matching scheme. Consequently,
the jets would be used (but incorrect) for other curve parameters.
Tests were also added to exercise the recovery id cases thoroughly.
