@imfede: They were built for an older FW version (The KT moved from OpenSSL 0.9.8 to OpenSSL 1.0.x in FW 5.1.0).
Rebuild them against OpenSSL 1, or link them statically.
(I'd recommend against just symlinking OpenSSl 0.9 to OpenSSL 1, the soname was bumped for a reason, so expect ABI mismatches if you do that).
Alternatively, you could pull the OpenSSL lib from FW 5.0.x, put in somewhere in the userstore, and run the tools with a tweaked LD_LIBRARY_PATH that has your custom path before the rest.
EDIT: See #82, brainfart. It's actually the other way around
. [Well, technically, my answer could still apply, except, well, the other way around (0.9.8 <=> 1.0.x / 5.0.x <=> 5.1.x)
. But, yeah, probably easier to just upgrade