Use hashing algorithms (Score 1)

I created a small shell tool for myself. I'm entering some characters and the tool performs a incremental search in a file containing login identifiers (e.g. [e-mail]). Then it asks for a master password. At its core the tool creates a login specific password like this:

PASSWD=`echo "${login}${masterpasswd}" | openssl dgst -ripemd160 -binary | openssl dgst -sha1 -binary | openssl base64 | head --bytes 8`

The password is stored in the KDE klipper for 20 seconds afterwards.