Encryption support

[Jefffrey]

Not a focus now, just raising issue for tracking

[suxiaogang223]

Hi, I'd like to pick up this👀

[WenyXu]

Hi, I'd like to pick up this👀

Have fun

[suxiaogang223]

I spent some time looking at the orc format documentation and code. I divided the implementation plan into decryption and encryption.

decryption

The implementation of the decryption function is divided into decryption of statistical information and decryption of column data. Before this, the ReaderEncryption class must be constructed first.

• Impl ReaderEncryption (specification: https://github.com/apache/orc/blob/main/java/core/src/java/org/apache/orc/impl/reader/ReaderEncryption.java)
• Impl decryption Statistics: getStatistics
• Impl decryption Column Rows: EncryptedStream

encryption

• TODO

[suxiaogang223]

I spent some time looking at the orc format documentation and code. I divided the implementation plan into decryption and encryption.

decryption

The implementation of the decryption function is divided into decryption of statistical information and decryption of column data. Before this, the ReaderEncryption class must be constructed first.

• Impl ReaderEncryption (specification: https://github.com/apache/orc/blob/main/java/core/src/java/org/apache/orc/impl/reader/ReaderEncryption.java)
• Impl decryption Statistics: getStatistics
• Impl decryption Column Rows: EncryptedStream

encryption

• TODO

The tools for various encryption and decryption algorithms in the rust ecosystem are not very mature yet, and more time is needed to test libs.☹️