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HADOOP-10891. Add EncryptedKeyVersion factory method to KeyProviderCryptoExtension. (wang) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1619540 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Alejandro Abdelnur 2014-08-21 18:59:38 +00:00
parent 30fe1849c3
commit c6eee38b81
2 changed files with 27 additions and 0 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -160,6 +160,9 @@ Release 2.6.0 - UNRELEASED
HADOOP-10720. KMS: Implement generateEncryptedKey and decryptEncryptedKey
in the REST API. (asuresh via tucu)
HADOOP-10891. Add EncryptedKeyVersion factory method to
KeyProviderCryptoExtension. (wang)
BUG FIXES
HADOOP-10781. Unportable getgrouplist() usage breaks FreeBSD (Dmitry

24
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/crypto/key/KeyProviderCryptoExtension.java
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@ -79,6 +79,30 @@ protected EncryptedKeyVersion(String keyName,
this.encryptedKeyVersion = encryptedKeyVersion;
}
/**
* Factory method to create a new EncryptedKeyVersion that can then be
* passed into {@link #decryptEncryptedKey}. Note that the fields of the
* returned EncryptedKeyVersion will only partially be populated; it is not
* necessarily suitable for operations besides decryption.
*
* @param encryptionKeyVersionName Version name of the encryption key used
* to encrypt the encrypted key.
* @param encryptedKeyIv Initialization vector of the encrypted
* key. The IV of the encryption key used to
* encrypt the encrypted key is derived from
* this IV.
* @param encryptedKeyMaterial Key material of the encrypted key.
* @return EncryptedKeyVersion suitable for decryption.
*/
public static EncryptedKeyVersion createForDecryption(String
encryptionKeyVersionName, byte[] encryptedKeyIv,
byte[] encryptedKeyMaterial) {
KeyVersion encryptedKeyVersion = new KeyVersion(null, null,
encryptedKeyMaterial);
return new EncryptedKeyVersion(null, encryptionKeyVersionName,
encryptedKeyIv, encryptedKeyVersion);
}
/**
* @return Name of the encryption key used to encrypt the encrypted key.
*/