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## What changes were proposed in this pull request? DIGEST-MD5 mechanism is used for SASL authentication and secure communication. DIGEST-MD5 mechanism supports 3DES, DES, and RC4 ciphers. However, 3DES, DES and RC4 are slow relatively. AES provide better performance and security by design and is a replacement for 3DES according to NIST. Apache Common Crypto is a cryptographic library optimized with AES-NI, this patch employ Apache Common Crypto as enc/dec backend for SASL authentication and secure channel to improve spark RPC. ## How was this patch tested? Unit tests and Integration test. Author: Junjie Chen <junjie.j.chen@intel.com> Closes #15172 from cjjnjust/shuffle_rpc_encrypt. |
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