### Question:
DefaultEncryptionProtocol implements EncryptionProtocol { @Nullable @Override public ByteArrayRuntimeObfuscator obfuscatePassword(@Nullable char[] password) { return obfuscatePasswordInternal(password, secureRandom); } private  DefaultEncryptionProtocol(EncryptionProtocolConfig defaultConfig, byte[] preferenceSalt,
                                      EncryptionFingerprint fingerprint, StringMessageDigest stringMessageDigest,
                                      SecureRandom secureRandom, boolean enableDerivedPasswordCaching,
                                      List<EncryptionProtocolConfig> additionalDecryptionConfigs); @Override String deriveContentKey(String originalContentKey); @Override byte[] encrypt(@NonNull String contentKey, byte[] rawContent); @Override byte[] encrypt(@NonNull String contentKey, @Nullable char[] password, byte[] rawContent); @Override byte[] decrypt(@NonNull String contentKey, byte[] encryptedContent); @Override byte[] decrypt(@NonNull String contentKey, @Nullable char[] password, byte[] encryptedContent); @Override void setKeyStretchingFunction(@NonNull KeyStretchingFunction function); @Override KeyStretchingFunction getKeyStretchingFunction(); @Nullable @Override ByteArrayRuntimeObfuscator obfuscatePassword(@Nullable char[] password); @Nullable @Override char[] deobfuscatePassword(@Nullable ByteArrayRuntimeObfuscator obfuscated); @Override void wipeDerivedPasswordCache();  }### Answer:
@Test public void obfuscatePassword() { testObfuscatePw("123456abcdefABCDEF_:;$%&/()=?\"}][{"); testObfuscatePw("5187h_asd€éÀä'#\uD83E\uDD2F#_"); testObfuscatePw("µ€ßüöäáé´Ààó"); testObfuscatePw("乨ØǲǲɻД\u058Dא\u08A1ᶀṻὉ\u202A₸ꜽײַ"); testObfuscatePw("乨ØǲǲɻaД\u058DAא\u08A1A2$ᶀṻὉ\u202A₸ꜽ!ö\uD83E\uDD2Fײַ"); }