Depending on your threat model and who wants those passwords, an encrypted container can be a liability. A user can be compelled or coerced into opening it or providing the master password. Malware can capture it. If that container is opened, your adversary gets all the passwords stored there. There are advantages to hiding passwords in plain sight in the manner I described. There's no cryptographic attack when there's no encryption. There's no master password that can be captured or forced out of you. If your system is compromised, the malware can only capture the password that you used. The rest stay hidden. In the example I used, there's 6 source files with over 300,000 total random characters. Somewhere in there are a dozen passwords of unknown lengths and locations. Find them. There's a plausible deniability aspect to this arrangement as well. I created those source files by encrypting text documents. They can easily be decrypted. There's nothing to prove or suggest that they serve another purpose, like source material for passwords.