Uma Maheswara Rao G created HDFS-6737: -----------------------------------------
Summary: DFSClinet should use IV generated beased on the configured CipherSuite with codecs used Key: HDFS-6737 URL: https://issues.apache.org/jira/browse/HDFS-6737 Project: Hadoop HDFS Issue Type: Sub-task Components: hdfs-client Affects Versions: fs-encryption (HADOOP-10150 and HDFS-6134) Reporter: Uma Maheswara Rao G Assignee: Uma Maheswara Rao G Seems like we are using IV as like Encrypted data encryption key iv. But the underlying Codec's cipher suite may expect different iv length. So, we should generate IV from the Coec's cipher suite configured. {code} final CryptoInputStream cryptoIn = new CryptoInputStream(dfsis, CryptoCodec.getInstance(conf, feInfo.getCipherSuite()), feInfo.getEncryptedDataEncryptionKey(), feInfo.getIV()); {code} So, instead of using feinfo.getIV(), we should generate like {code} byte[] iv = new byte[codec.getCipherSuite().getAlgorithmBlockSize()]; codec.generateSecureRandom(iv); {code} -- This message was sent by Atlassian JIRA (v6.2#6252)