zxf216

> > Hi @dongjoon-hyun Do we have jira to track the work? > > @deshanxiao Not yet. @coderex2522 is working on it already. Will create JIRAs later. @coderex2522 Has the...

@dongjoon-hyun @coderex2522 I want to try implementing ORC encryption and decryption feature in C++. Are there any other developers working on this feature?

@coderex2522 Thank you for your support. I would like to know more about the design plan for ORC encryption function. Do you have any materials that you can provide me...

@wgtmac @coderex2522 My email is [email protected]. Can you share your email or WeChat with me? This way we can communicate more efficiently.

@dongjoon-hyun @wgtmac @coderex2522 We are developing a C++ feature to read encrypted columns in ORC, but have encountered an issue where the program throws an error when it needs to...

@wgtmac I found in the Java version of ORC code that IV is updated during seeking. I will study this first.

Solution @wgtmac **In the method DecryptionInputStream::seek, update the value of IV.** ``` void DecryptionInputStream::seek(PositionProvider& position) { changeIv(position.current()); input_->seek(position); } ``` **The changeIv method is defined as follows.** ``` void DecryptionInputStream::changeIv(long...

> Thank you for making a PR, @zxf216 . > > We have been tracking this via > > * [Add C++ API for Columnar Encryption #1183](https://github.com/apache/orc/issues/1183) > > BTW,...