DX-67209 updated aes_encrypt/decrypt

[xxlaykxx]

aes_ecrypt/decrypt support 128, 192, 254 bit key and this strict requirement - key should be 16 or 24 or 32 chars.
If not - error will be returned.

[github-actions]

Thanks for opening a pull request!

If this is not a minor PR. Could you open an issue for this pull request on GitHub? https://github.com/apache/arrow/issues/new/choose

Opening GitHub issues ahead of time contributes to the Openness of the Apache Arrow project.

Then could you also rename the pull request title in the following format?

GH-${GITHUB_ISSUE_ID}: [${COMPONENT}] ${SUMMARY}

or

MINOR: [${COMPONENT}] ${SUMMARY}

In the case of PARQUET issues on JIRA the title also supports:

PARQUET-${JIRA_ISSUE_ID}: [${COMPONENT}] ${SUMMARY}

See also:

• Other pull requests
• Contribution Guidelines - How to contribute patches

[lriggs]

This could be combined with the other similar code below into a helper function.

[lriggs]

Don't the helper functions already check the length? I think it would be better to just do the check in one place since the code would be easier to read and better tested. It doesn't look like this path is being tested since the unit tests call the helper functions.