[jira] [Assigned] (CASSANDRA-13428) Security: provide keystore_password_file and truststore_password_file options

["Maulin Vasavada (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CASSANDRA-13428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Maulin Vasavada reassigned CASSANDRA-13428:
-------------------------------------------

    Assignee: Maulin Vasavada

> Security: provide keystore_password_file and truststore_password_file options
> -----------------------------------------------------------------------------
>
>                 Key: CASSANDRA-13428
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13428
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Feature/Encryption, Local/Config
>            Reporter: Bas van Dijk
>            Assignee: Maulin Vasavada
>            Priority: Normal
>   Original Estimate: 3h
>  Remaining Estimate: 3h
>
> Currently passwords are stored in plaintext in the configuration file as in:
> {code}
>     server_encryption_options:
>       keystore_password: secret
>       truststore_password: secret
>     client_encryption_options:
>       keystore_password: secret
> {code}
> This has the disadvantage that, in order to protect the secrets, the whole configuration file needs to have restricted ownership and permissions. This is problematic in operating systems like NixOS where configuration files are usually stored in world-readable locations.
> A secure option would be to store secrets in files (with restricted ownership and permissions) and reference those files from the unrestricted configuration file as in for example:
> {code}
>     server_encryption_options:
>       keystore_password_file: /run/keys/keystore-password
>       truststore_password_file: /run/keys/truststore-password
>     client_encryption_options:
>       keystore_password_file: /run/keys/keystore-password
> {code}
> This is trivial to implement and provides a big gain in security.
> So in summary I'm proposing to add the {{keystore_password_file}} and {{truststore_password_file}} options besides the existing {{keystore_password}} and {{truststore_password options}}. The former will take precedence over the latter.



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