@InterfaceAudience.Private @InterfaceStability.Evolving public class EncryptionUtil extends java.lang.Object
Constructor and Description |
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EncryptionUtil() |
Modifier and Type | Method and Description |
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static java.security.Key |
unwrapKey(Configuration conf,
java.lang.String subject,
byte[] value)
Unwrap a key by decrypting it with the secret key of the given subject.
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static java.security.Key |
unwrapWALKey(Configuration conf,
java.lang.String subject,
byte[] value)
Unwrap a wal key by decrypting it with the secret key of the given subject.
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static byte[] |
wrapKey(Configuration conf,
byte[] key,
java.lang.String algorithm)
Protect a key by encrypting it with the secret key of the given subject.
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static byte[] |
wrapKey(Configuration conf,
java.lang.String subject,
java.security.Key key)
Protect a key by encrypting it with the secret key of the given subject.
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public static byte[] wrapKey(Configuration conf, byte[] key, java.lang.String algorithm) throws java.io.IOException
conf
- configurationkey
- the raw key bytesalgorithm
- the algorithm to use with this key materialjava.io.IOException
public static byte[] wrapKey(Configuration conf, java.lang.String subject, java.security.Key key) throws java.io.IOException
conf
- configurationsubject
- subject key aliaskey
- the keyjava.io.IOException
public static java.security.Key unwrapKey(Configuration conf, java.lang.String subject, byte[] value) throws java.io.IOException, java.security.KeyException
conf
- configurationsubject
- subject key aliasvalue
- the encrypted key bytesjava.io.IOException
java.security.KeyException
public static java.security.Key unwrapWALKey(Configuration conf, java.lang.String subject, byte[] value) throws java.io.IOException, java.security.KeyException
conf
- configurationsubject
- subject key aliasvalue
- the encrypted key bytesjava.io.IOException
- if key is not found for the subject, or if some I/O error occursjava.security.KeyException
- if fail to unwrap the key