A password hash provider to handle PHPass passwords inside Keycloak.

Cannot encrypt passwords, can only verify them.

The primary purpose is to smoothly migrate from legacy databases with PHPass hashes.

You should set Authentication->Policies->Hashing Algorithm to pbkdf2-sha256. Keycloak will then automatically replace your legacy PHPass hashes with pbkdf2-sha256 hashes at the first login of the corresponding user.

./gradlew assemble -Pdependency.keycloak.version=${KEYCLOAK_VERSION}

Copy the jar file (./build/libs) to the keycloak providers directory.

You need to restart Keycloak.

Take a user with existing credentials, and modify them to be PHPass credentials.

For example,

• Open the database's credential table.
• Locate the user's row.
• In the secret_data column, set value to the full $P$... password hash.
• In the credential_data column, set algorithm to phpass.
• You need to restart Keycloak to clear its caches.