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https://issues.apache.org/jira/browse/LOG4J2-2930?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17202932#comment-17202932
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Matt Sicker commented on LOG4J2-2930:
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Right; I don't plan on implementing all these scenarios. I'm exploring the
problem space to see what API surface is needed. I'm also interested from a
cryptography nerd standpoint as designing or implementing cryptosystems is fun
yet uncommonly needed, so I will have a fairly interesting sample
implementation to go with the API updates. This should also help figure out if
this belongs as a special type of Layout that encapsulates another Layout or a
separate API entirely.
> Add plugin for encrypting/decrypting log events
> -----------------------------------------------
>
> Key: LOG4J2-2930
> URL: https://issues.apache.org/jira/browse/LOG4J2-2930
> Project: Log4j 2
> Issue Type: New Feature
> Components: Appenders, Core, Receivers
> Affects Versions: 2.13.3
> Reporter: Matt Sicker
> Priority: Major
>
> Some of the existing appenders write log events to sophisticated systems
> which support encrypting said data at rest and in transit (e.g., storing
> events in an encrypted SQL database using a TLS connection, writing data to
> an encrypted filesystem or disk, etc.) However, not every system supported in
> Log4j provides a feature or ability to encrypt and decrypt data natively.
> There are a small collection of ad hoc cryptographic operations in Log4j
> (e.g., {{SslConfiguration}}, {{KeyStoreConfiguration}},
> {{SecretKeyProvider}}, etc.) which should be refactored and extended to allow
> for more flexibility in key management and message encryption/decryption.
> This will allow appenders and receivers that wish to support encryption to do
> so much more easily. This should also allow for more sophisticated use of
> cryptography such as adding message digests or authentication tags to log
> messages to help prevent tampering and add authenticity.
> Related resources:
> *
> https://cheatsheetseries.owasp.org/cheatsheets/Cryptographic_Storage_Cheat_Sheet.html
> *
> https://cheatsheetseries.owasp.org/cheatsheets/Transport_Layer_Protection_Cheat_Sheet.html
> *
> https://cheatsheetseries.owasp.org/cheatsheets/Logging_Cheat_Sheet.html#protection
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