Xianda Ke has uploaded this change for review. ( http://gerrit.cloudera.org:8080/8510
Change subject: IMPALA-6128: Spill-to-disk Encryption(AES-CFB + SHA256) is slow ...................................................................... IMPALA-6128: Spill-to-disk Encryption(AES-CFB + SHA256) is slow CFB mode is stream cipher and is secure when use different nonce/IV for every message. However it would be a performance bottleneck. CTR mode is also stream cipher and is secure, 4~6x faster than CFB mode in OpenSSL. AES-CTR+SHA256 is about 40~70% faster than AES-CFB+SHA256 Testing: run runtime tmp-file-mgr-test Change-Id: Ib97939f2334838263364b53ef3413871638bf53e --- M be/src/runtime/tmp-file-mgr.cc M be/src/util/openssl-util.cc M be/src/util/openssl-util.h 3 files changed, 12 insertions(+), 10 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/10/8510/2 -- To view, visit http://gerrit.cloudera.org:8080/8510 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newchange Gerrit-Change-Id: Ib97939f2334838263364b53ef3413871638bf53e Gerrit-Change-Number: 8510 Gerrit-PatchSet: 2 Gerrit-Owner: Xianda Ke <kexia...@gmail.com>
