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Posted to dev@parquet.apache.org by "Xinli Shang (Jira)" <ji...@apache.org> on 2021/09/30 02:09:00 UTC

[jira] [Created] (PARQUET-2098) Add more methods into interface of BlockCipher

Xinli Shang created PARQUET-2098:
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             Summary: Add more methods into interface of BlockCipher
                 Key: PARQUET-2098
                 URL: https://issues.apache.org/jira/browse/PARQUET-2098
             Project: Parquet
          Issue Type: Improvement
          Components: parquet-mr
            Reporter: Xinli Shang
            Assignee: Xinli Shang


Currently BlockCipher interface has methods without letting caller to specify length/offset. In some use cases like Presto,  it is needed to pass in a byte array and the data to be encrypted only occupys partially of the array.  So we need to add a new methods something like below for decrypt. Similar methods might be needed for encrypt. 

byte[] decrypt(byte[] ciphertext, int cipherTextOffset, int cipherTextLength, byte[] aad);



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