/usr/share/crypto++/TestData/ is in libcrypto++-utils 5.6.1-6+deb8u3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/crypto++/TestData/3desval.dat
/usr/share/crypto++/TestData/3wayval.dat
/usr/share/crypto++/TestData/camellia.dat
/usr/share/crypto++/TestData/cast128v.dat
/usr/share/crypto++/TestData/cast256v.dat
/usr/share/crypto++/TestData/descert.dat
/usr/share/crypto++/TestData/dh1024.dat
/usr/share/crypto++/TestData/dh2048.dat
/usr/share/crypto++/TestData/dlie1024.dat
/usr/share/crypto++/TestData/dlie2048.dat
/usr/share/crypto++/TestData/dsa1024.dat
/usr/share/crypto++/TestData/dsa1024b.dat
/usr/share/crypto++/TestData/dsa512.dat
/usr/share/crypto++/TestData/elgc1024.dat
/usr/share/crypto++/TestData/esig1023.dat
/usr/share/crypto++/TestData/esig1536.dat
/usr/share/crypto++/TestData/esig2046.dat
/usr/share/crypto++/TestData/gostval.dat
/usr/share/crypto++/TestData/ideaval.dat
/usr/share/crypto++/TestData/luc1024.dat
/usr/share/crypto++/TestData/luc2048.dat
/usr/share/crypto++/TestData/lucc1024.dat
/usr/share/crypto++/TestData/lucc512.dat
/usr/share/crypto++/TestData/lucd1024.dat
/usr/share/crypto++/TestData/lucd512.dat
/usr/share/crypto++/TestData/lucs1024.dat
/usr/share/crypto++/TestData/lucs512.dat
/usr/share/crypto++/TestData/marsval.dat
/usr/share/crypto++/TestData/mqv1024.dat
/usr/share/crypto++/TestData/mqv2048.dat
/usr/share/crypto++/TestData/nr1024.dat
/usr/share/crypto++/TestData/nr2048.dat
/usr/share/crypto++/TestData/rabi1024.dat
/usr/share/crypto++/TestData/rabi2048.dat
/usr/share/crypto++/TestData/rc2val.dat
/usr/share/crypto++/TestData/rc5val.dat
/usr/share/crypto++/TestData/rc6val.dat
/usr/share/crypto++/TestData/rijndael.dat
/usr/share/crypto++/TestData/rsa1024.dat
/usr/share/crypto++/TestData/rsa2048.dat
/usr/share/crypto++/TestData/rsa400pb.dat
/usr/share/crypto++/TestData/rsa400pv.dat
/usr/share/crypto++/TestData/rsa512a.dat
/usr/share/crypto++/TestData/rw1024.dat
/usr/share/crypto++/TestData/rw2048.dat
/usr/share/crypto++/TestData/saferval.dat
/usr/share/crypto++/TestData/serpentv.dat
/usr/share/crypto++/TestData/shacal2v.dat
/usr/share/crypto++/TestData/sharkval.dat
/usr/share/crypto++/TestData/skipjack.dat
/usr/share/crypto++/TestData/squareva.dat
/usr/share/crypto++/TestData/twofishv.dat
/usr/share/crypto++/TestData/usage.dat
/usr/share/crypto++/TestData/xtrdh171.dat
/usr/share/crypto++/TestData/xtrdh342.dat