I'm using SHA-1 to detect duplicates in a program handling files. It is not required to be cryptographic strong and may be reversible. I found this list of fast
nakama
vavr
virtualenvwrapper
script-fu
minimum-cut
x11
c1-cms
python-sounddevice
spring-batch-integration
perl5.6
rtcpeerconnection
dcg
vnrecognizetextrequest
dnp3
apache-ode
scribd
ruby-2.0
bluej
navbar
wkhttpcookiestore
dynamic-ip
bllip-parser
cdb
pykka
django-postgresql
console-redirect
sql-revoke
gsql
lightgraphs
objective-c-category