To connect / deploy to a maven repository that requires a password:

Create a master password in settings-security.xml file. Place this file in ~/.m2 folder. To create the password:

mvn -emp mypassword

It will print: {rsB56BJcqoEHZqEZ0R1VR4TIspmODx1Ln8/PVvsgaGw=}

~/.m2/settings-security.xml file content:

<settingsSecurity>
  <master>{rsB56BJcqoEHZqEZ0R1VR4TIspmODx1Ln8/PVvsgaGw=}</master>
</settingsSecurity>

Now, to encrypt a password using the master password:

mvn -ep qualityFIRST

{uMrbEOEf/VQHnc0W2X49Qab75j9LSTwiM3mg2LCrOzI=}

Next, add this password to maven settings.xml file:

<servers>
  <server>
    <id>internal</id>
    <username>user</username>
    <password>{uMrbEOEf/VQHnc0W2X49Qab75j9LSTwiM3mg2LCrOzI=}</password>
  </server>
</servers>