/usr/share/crypto++/TestData/lucd512.dat is in libcrypto++-utils 5.6.1-6+deb8u3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | 3046024100C339D027E5812ED5D9DE044F3697D0273625E5EA9EC4EF3FB89ADBFA9CD1FBF4D8C0EC
1118C44609F499EF644EEAECE2F38B3F67FAC81A075F31A60B5757A87D020109
|