A verifiable election platform whose bulletin board is a blockchain
no one administers. Ballots are encrypted with exponential ElGamal
and carry zero-knowledge proofs checked on-chain; only the final
tally is ever decrypted.
Format-preserving pseudonymization of personal data for test
databases, using FF1 encryption (NIST SP 800-38G) and keyed
dictionary substitution in a Spring Batch pipeline. The same phone
number gets the same pseudonym in every table, so joins between
tables keep working.
A moderated, bilingual job platform that connects a university's
alumni with the companies that want to hire them, with a full
review workflow for recruiters and admin vetting for everyone else.