the right link for the deb is: http://ftp.nl.debian.org/debian/pool/main/o/openssl/libssl1.0.0_1.0.1t-1%2Bdeb8u7_armhf.deb
so the processo to solve is:
wget http://ftp.nl.debian.org/debian/pool/main/o/openssl/libssl1.0.0_1.0.1t-1%2Bdeb8u7_armhf.deb
sudo spkg -i libssl1.0.0_1.0.1t-1%2Bdeb8u7_armhf.deb