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https://issues.apache.org/jira/browse/HDFS-15098?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17105426#comment-17105426
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Andrea commented on HDFS-15098:
-------------------------------
[~weichiu] [~zZtai]
Hi, I modified the method of KeyProvider.java that called generateKey(int size,
String algorithm). like this
{code:java}
// code placeholder
protected byte[] generateKey(int size, String algorithm)
throws NoSuchAlgorithmException {
algorithm = getAlgorithm(algorithm);
KeyGenerator keyGenerator = KeyGenerator.getInstance(algorithm);
keyGenerator.init(size);
byte[] key = keyGenerator.generateKey().getEncoded();
return key;
}
====>
protected byte[] generateKey(int size, String algorithm)
throws NoSuchAlgorithmException {
if("SM4/CTR/NoPadding".equals(algorithm)){
algorithm = "AES/CTR/NoPadding"
};
algorithm = getAlgorithm(algorithm);
KeyGenerator keyGenerator = KeyGenerator.getInstance(algorithm);
keyGenerator.init(size);
byte[] key = keyGenerator.generateKey().getEncoded();
return key;
}
{code}
and run "hadoop key create key5 -cipher 'SM4/CTR/NoPadding' -size 128 -provider
kms://http@localhost:16000/kms "
I get a result like
{code:java}
// code placeholder
key5 has been successfully created with options
Options{cipher='SM4/CTR/NoPadding', bitLength=128, description='null',
attributes=null}.
KMSClientProvider[http://localhost:16000/kms/v1/] has been updated.
{code}
Now, I temporary fixed a bug, when I run "hadoop fs -put file /encryptZone"
that print console info : "Now Codec is OpensslSm4CryptoCodec",
In the past, I get the console info is : "Now Codec is
OpensslOpensslAesCtrCryptoCodec", that I used this patch.
the console info in DFSClient.java is
{code:java}
// code placeholder
private static CryptoCodec getCryptoCodec(Configuration conf,
FileEncryptionInfo feInfo) throws IOException {
final CipherSuite suite = feInfo.getCipherSuite();
if (suite.equals(CipherSuite.UNKNOWN)) {
throw new IOException("NameNode specified unknown CipherSuite with ID "
+ suite.getUnknownValue() + ", cannot instantiate CryptoCodec.");
}
final CryptoCodec codec = CryptoCodec.getInstance(conf, suite);
if (codec instanceof OpensslAesCtrCryptoCodec) {
System.out.println("Now Codec is OpensslAesCtrCryptoCodec");
}
if (codec instanceof OpensslSm4CtrCryptoCodec) {
System.out.println("Now Codec is OpensslSm4CtrCryptoCodec");
}
if (codec instanceof JceAesCtrCryptoCodec) {
System.out.println("Now Codec is JceAesCtrCryptoCodec");
}
{code}
It Seems like the method of PBHelper.java(Hadoop-hdfs), "convert(CipherSuite
suite)" or convert(CipherSuiteProto proto), They are still received
AES/CTR/NoPadding , If you do not specify SM4 as the policy when execute "
hadoop key create "
So, what idea do you think?
Cheers!
> Add SM4 encryption method for HDFS
> ----------------------------------
>
> Key: HDFS-15098
> URL: https://issues.apache.org/jira/browse/HDFS-15098
> Project: Hadoop HDFS
> Issue Type: New Feature
> Affects Versions: 3.4.0
> Reporter: liusheng
> Assignee: zZtai
> Priority: Major
> Labels: sm4
> Attachments: HDFS-15098.001.patch, HDFS-15098.002.patch,
> HDFS-15098.003.patch
>
>
> SM4 (formerly SMS4)is a block cipher used in the Chinese National Standard
> for Wireless LAN WAPI (Wired Authentication and Privacy Infrastructure).
> SM4 was a cipher proposed to for the IEEE 802.11i standard, but has so far
> been rejected by ISO. One of the reasons for the rejection has been
> opposition to the WAPI fast-track proposal by the IEEE. please see:
> [https://en.wikipedia.org/wiki/SM4_(cipher)]
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