Example usage for javax.crypto Cipher getInstance

List of usage examples for javax.crypto Cipher getInstance

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Introduction

In this page you can find the example usage for javax.crypto Cipher getInstance.

Prototype

public static final Cipher getInstance(String transformation, Provider provider)
        throws NoSuchAlgorithmException, NoSuchPaddingException

Source Link

Document

Returns a Cipher object that implements the specified transformation.

Usage

From source file:gov.nih.nci.security.util.AESEncryption.java

public AESEncryption(String passphrase, boolean isMD5Hash) throws EncryptionException {
    try {/*from www  . ja  v a 2 s .c  o  m*/
        this.provider = new BouncyCastleProvider();
        SecretKeySpec skey = getSKeySpec(passphrase, isMD5Hash);
        encryptCipher = Cipher.getInstance(AES_ENCRYPTION_SCHEME, provider);
        decryptCipher = Cipher.getInstance(AES_ENCRYPTION_SCHEME, provider);
        encryptCipher.init(Cipher.ENCRYPT_MODE, skey);
        AlgorithmParameters ap = encryptCipher.getParameters();
        decryptCipher.init(Cipher.DECRYPT_MODE, skey, ap);
    } catch (NoSuchAlgorithmException e) {
        throw new EncryptionException(e);
    } catch (NoSuchPaddingException e) {
        throw new EncryptionException(e);
    } catch (InvalidKeyException e) {
        throw new EncryptionException(e);
    } catch (InvalidAlgorithmParameterException e) {
        throw new EncryptionException(e);
    }
}