question: private boolean verifyVersion1 ( char [ ] cleartext , String hash ) throws PasswordException { String [ ] parts = split ( hash ) ; int id = Integer . parseInt ( parts [ 1 ] , RADIX_HEX ) ; byte [ ] salt = Base64 . decode ( parts [ 2 ] ) ; HashAlgorithmConfig config = configCoder . decode ( parts [ 3 ] ) ; byte [ ] hashBytes = Base64 . decode ( parts [ 4 ] ) ; HashAlgorithm hashAlgorithm ; try { hashAlgorithm = hashAlgorithmRegistry . getAlgorithm ( id ) ; } catch ( AlgorithmException e ) { throw new PasswordException ( e ) ; } byte [ ] hashedCleartext ; try { hashedCleartext = hashAlgorithm . hash ( cleartext , salt , config ) ; } catch ( AlgorithmException e ) { throw new PasswordException ( e ) ; } return slowEquals ( hashedCleartext , hashBytes ) ; }
target:  Verifies that the cleartext matches the hash generated by the version 1 of the software.