本文整理汇总了Java中org.apache.hadoop.crypto.Encryptor.init方法的典型用法代码示例。如果您正苦于以下问题：Java Encryptor.init方法的具体用法？Java Encryptor.init怎么用？Java Encryptor.init使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.apache.hadoop.crypto.Encryptor的用法示例。
在下文中一共展示了Encryptor.init方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: transformEncryptedKey
import org.apache.hadoop.crypto.Encryptor; //导入方法依赖的package包/类
public EncryptedKeyVersion transformEncryptedKey(EncryptedKeyVersion encryptedKeyVersion, ReEncryptionKeyInstance reKey)
throws IOException, GeneralSecurityException
{
CryptoCodec reCC = CryptoCodec.getInstance(conf, suite);
Encryptor encryptor = reCC.createEncryptor();
encryptor.init(reKey.getMaterial(), null);
int keyLen = encryptedKeyVersion.getEncryptedKeyVersion().getMaterial().length;
ByteBuffer bbIn = ByteBuffer.allocateDirect(keyLen);
ByteBuffer bbOut = ByteBuffer.allocateDirect(keyLen);
bbIn.put(encryptedKeyVersion.getEncryptedKeyVersion().getMaterial());
bbIn.flip();
encryptor.encrypt(bbIn, bbOut);
byte[] encryptedKey = new byte[bbOut.limit()];
bbOut.get(encryptedKey);
final String dstKeyNameVersion = reKey.getDstNameVersion();
return EncryptedKeyVersion.createForDecryption(KeyPairProvider.getBaseName(dstKeyNameVersion),
dstKeyNameVersion,
encryptedKeyVersion.getEncryptedKeyIv(), encryptedKey);
}
示例2: generateEncryptedKey
import org.apache.hadoop.crypto.Encryptor; //导入方法依赖的package包/类
@Override
public EncryptedKeyVersion generateEncryptedKey(String encryptionKeyName)
throws IOException, GeneralSecurityException {
// Fetch the encryption key
KeyVersion encryptionKey = keyProvider instanceof KeyPairProvider ?
((KeyPairProvider) keyProvider).getCurrentKeyPair(encryptionKeyName).publicToKeyVersion() :
keyProvider.getCurrentKey(encryptionKeyName);
Preconditions.checkNotNull(encryptionKey,
"No KeyVersion exists for key '%s' ", encryptionKeyName);
// Generate random bytes for new key and IV
Metadata keyMetadata = keyProvider.getMetadata(encryptionKeyName);
int keyLen = keyMetadata.getBitLength() / 8;
CryptoCodec cc = CryptoCodec.getInstance(keyProvider.getConf());
final byte[] newKey = new byte[keyLen];
cc.generateSecureRandom(newKey);
final byte[] iv = new byte[keyLen];
cc.generateSecureRandom(iv);
// Encryption key IV is derived from new key's IV
final byte[] encryptionIV = EncryptedKeyVersion.deriveIV(iv);
Encryptor encryptor = cc.createEncryptor();
encryptor.init(encryptionKey.getMaterial(), encryptionIV);
int encryptedKeyLen = cc.getCipherSuite().getAlgorithmBlockSize() * 5;
ByteBuffer bbIn = ByteBuffer.allocateDirect(keyLen);
ByteBuffer bbOut = ByteBuffer.allocateDirect(encryptedKeyLen);
bbIn.put(newKey);
bbIn.flip();
encryptor.encrypt(bbIn, bbOut);
byte[] encryptedKey = new byte[bbOut.limit()];
bbOut.get(encryptedKey);
// System.err.println("got encrypted len " + encryptedKey.length + " key len " + keyLen);
return new EncryptedKeyVersion(encryptionKeyName,
encryptionKey.getVersionName(), iv,
new KeyVersion(encryptionKey.getName(), EEK, encryptedKey));
}
示例3: generateEncryptedKey
import org.apache.hadoop.crypto.Encryptor; //导入方法依赖的package包/类
@Override
public EncryptedKeyVersion generateEncryptedKey(String encryptionKeyName)
throws IOException, GeneralSecurityException {
// Fetch the encryption key
KeyVersion encryptionKey = keyProvider.getCurrentKey(encryptionKeyName);
Preconditions.checkNotNull(encryptionKey,
"No KeyVersion exists for key '%s' ", encryptionKeyName);
// Generate random bytes for new key and IV
CryptoCodec cc = CryptoCodec.getInstance(keyProvider.getConf());
final byte[] newKey = new byte[encryptionKey.getMaterial().length];
cc.generateSecureRandom(newKey);
final byte[] iv = new byte[cc.getCipherSuite().getAlgorithmBlockSize()];
cc.generateSecureRandom(iv);
// Encryption key IV is derived from new key's IV
final byte[] encryptionIV = EncryptedKeyVersion.deriveIV(iv);
Encryptor encryptor = cc.createEncryptor();
encryptor.init(encryptionKey.getMaterial(), encryptionIV);
int keyLen = newKey.length;
ByteBuffer bbIn = ByteBuffer.allocateDirect(keyLen);
ByteBuffer bbOut = ByteBuffer.allocateDirect(keyLen);
bbIn.put(newKey);
bbIn.flip();
encryptor.encrypt(bbIn, bbOut);
bbOut.flip();
byte[] encryptedKey = new byte[keyLen];
bbOut.get(encryptedKey);
return new EncryptedKeyVersion(encryptionKeyName,
encryptionKey.getVersionName(), iv,
new KeyVersion(encryptionKey.getName(), EEK, encryptedKey));
}