Java's hashCode is not safe for distributed systems — Martin Kleppmann’s blog

Published by Martin Kleppmann on 18 Jun 2012. As you probably know, hash functions serve many different purposes: Network and storage systems use them (in the guise of checksums) to detect accidental corruption of data. Crypographic systems use them to detect malicious corruption of data and to implement signatures. Password authentication systems use them to make it harder to extract plaintext pa