[ https://issues.apache.org/jira/browse/HADOOP-10967?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alejandro Abdelnur updated HADOOP-10967: ---------------------------------------- Resolution: Fixed Fix Version/s: 3.0.0 Hadoop Flags: Reviewed Status: Resolved (was: Patch Available) Thanks Yi. Committed to trunk. > Improve DefaultCryptoExtension#generateEncryptedKey performance > ---------------------------------------------------------------- > > Key: HADOOP-10967 > URL: https://issues.apache.org/jira/browse/HADOOP-10967 > Project: Hadoop Common > Issue Type: Improvement > Components: security > Affects Versions: 2.6.0 > Reporter: Yi Liu > Assignee: Yi Liu > Fix For: 3.0.0 > > Attachments: HADOOP-10967.001.patch > > > This JIRA is to improve generateEncryptedKey performance: > *1.* SecureRandom#generateSeed is very slow, we should use > SecureRandom#nextBytes to generate the {{IV}} which is much faster. > *2.* Define SecureRandom as threadlocal object which can improve the > performance a bit. > *3.* Use {{new SecureRandom()}} instead of SHA1PRNG, the former has better > entropy. -- This message was sent by Atlassian JIRA (v6.2#6252)