6 files declare their use of PhpPassword

PasswordVerifyTest.php in core/modules/phpass/tests/src/Unit/PasswordVerifyTest.php
PhpPasswordArgon2idIntegrationTest.php in core/tests/Drupal/KernelTests/Core/Password/PhpPasswordArgon2idIntegrationTest.php
PhpPasswordBcryptIntegrationTest.php in core/tests/Drupal/KernelTests/Core/Password/PhpPasswordBcryptIntegrationTest.php
PhpPasswordDefaultIntegrationTest.php in core/tests/Drupal/KernelTests/Core/Password/PhpPasswordDefaultIntegrationTest.php
PhpPasswordTest.php in core/tests/Drupal/Tests/Core/Password/PhpPasswordTest.php
PhpPasswordUnknownAlgorithmIntegrationTest.php in core/tests/Drupal/KernelTests/Core/Password/PhpPasswordUnknownAlgorithmIntegrationTest.php

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