Java Base64.decode方法代码示例

import com.microsoft.azure.storage.core.Base64; //导入方法依赖的package包/类
/**
 * Gets the content of the message as a byte array.
 * 
 * @return A <code>byte</code> array which contains the content of the message.
 * 
 * @throws StorageException
 *         If a storage service error occurred.
 */
public final byte[] getMessageContentAsByte() throws StorageException {
    if (Utility.isNullOrEmpty(this.messageContent)) {
        return new byte[0];
    }

    if (this.messageType == QueueMessageType.RAW_STRING) {
        try {
            return this.messageContent.getBytes(Constants.UTF8_CHARSET);
        }
        catch (final UnsupportedEncodingException e) {
            throw Utility.generateNewUnexpectedStorageException(e);
        }
    }
    else {
        return Base64.decode(this.messageContent);
    }
}
 

import com.microsoft.azure.storage.core.Base64; //导入方法依赖的package包/类
/**
 * Gets the content of the message as a string.
 * 
 * @return A <code>String</code> which contains the content of the message.
 * 
 * @throws StorageException
 *         If a storage service error occurred.
 */
public final String getMessageContentAsString() throws StorageException {
    if (this.messageType == QueueMessageType.RAW_STRING) {
        return this.messageContent;
    }
    else {
        if (Utility.isNullOrEmpty(this.messageContent)) {
            return null;
        }

        try {
            return new String(Base64.decode(this.messageContent), Constants.UTF8_CHARSET);
        }
        catch (final UnsupportedEncodingException e) {
            throw Utility.generateNewUnexpectedStorageException(e);
        }
    }
}
 

import com.microsoft.azure.storage.core.Base64; //导入方法依赖的package包/类
@Test
public void testCloudStorageAccountExportKey() throws InvalidKeyException, URISyntaxException {
    String accountKeyString = "abc2564=";
    String accountString = "BlobEndpoint=http://blobs/;AccountName=test;AccountKey=" + accountKeyString;
    CloudStorageAccount account = CloudStorageAccount.parse(accountString);
    StorageCredentialsAccountAndKey accountAndKey = (StorageCredentialsAccountAndKey) account.getCredentials();
    String key = accountAndKey.exportBase64EncodedKey();
    assertEquals(accountKeyString, key);

    byte[] keyBytes = accountAndKey.exportKey();
    byte[] expectedKeyBytes = Base64.decode(accountKeyString);
    TestHelper.assertByteArrayEquals(expectedKeyBytes, keyBytes);
}
 

import com.microsoft.azure.storage.core.Base64; //导入方法依赖的package包/类
@Test
public void testCloudStorageAccountExportKey() throws InvalidKeyException, URISyntaxException {
    String accountKeyString = "abc2564=";
    String accountString = "BlobEndpoint=http://blobs/;AccountName=test;AccountKey=" + accountKeyString;
    CloudStorageAccount account = CloudStorageAccount.parse(accountString);
    StorageCredentialsAccountAndKey accountAndKey = (StorageCredentialsAccountAndKey) account.getCredentials();
    String key = accountAndKey.exportBase64EncodedKey();
    assertEquals(accountKeyString, key);

    byte[] keyBytes = accountAndKey.exportKey();
    byte[] expectedKeyBytes = Base64.decode(accountKeyString);
    assertArrayEquals(expectedKeyBytes, keyBytes);
}
 

import com.microsoft.azure.storage.core.Base64; //导入方法依赖的package包/类
@Test
public void testQueueMessageValidateEncryption() throws StorageException, JsonProcessingException, IOException,
        InvalidKeyException, InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException,
        NoSuchAlgorithmException, NoSuchPaddingException, InterruptedException, ExecutionException {
    // Create the Key to be used for wrapping.
    SymmetricKey aesKey = TestHelper.getSymmetricKey();

    byte[] messageBytes = new byte[100];
    Random rand = new Random();
    rand.nextBytes(messageBytes);

    String inputMessage = Base64.encode(messageBytes);
    CloudQueueMessage message = new CloudQueueMessage(inputMessage);
    this.queue.setShouldEncodeMessage(false);

    QueueRequestOptions options = new QueueRequestOptions();
    options.setEncryptionPolicy(new QueueEncryptionPolicy(aesKey, null));

    // add message
    this.queue.addMessage(message, 0, 0, options, null);

    // Retrieve message without decrypting
    CloudQueueMessage retrMessage = this.queue.retrieveMessage();

    // Decrypt locally
    CloudQueueMessage decryptedMessage;
    CloudQueueEncryptedMessage encryptedMessage = CloudQueueEncryptedMessage.deserialize(retrMessage
            .getMessageContentAsString());
    EncryptionData encryptionData = encryptedMessage.getEncryptionData();

    byte[] contentEncryptionKey = aesKey.unwrapKeyAsync(encryptionData.getWrappedContentKey().getEncryptedKey(),
            encryptionData.getWrappedContentKey().getAlgorithm()).get();
    SecretKey keySpec = new SecretKeySpec(contentEncryptionKey, 0, contentEncryptionKey.length,
            "AES"); 

    Cipher myAes = Cipher.getInstance("AES/CBC/PKCS5Padding");
    myAes.init(Cipher.DECRYPT_MODE, keySpec, new IvParameterSpec(encryptionData.getContentEncryptionIV()));

    byte[] src = Base64.decode(encryptedMessage.getEncryptedMessageContents());

    decryptedMessage = new CloudQueueMessage(myAes.doFinal(src, 0, src.length));

    assertArrayEquals(message.getMessageContentAsByte(), decryptedMessage.getMessageContentAsByte());
}
 

import com.microsoft.azure.storage.core.Base64; //导入方法依赖的package包/类
/**
 * Sets the key to be used, using the specified <code>String</code> as the key.
 * <p/>
 * This method is provided to support key rotation. This method is not thread-safe.
 * 
 * @param key
 *            A <code>String</code> that represents the key being assigned.
 */
public void setKey(final String key) {
    this.key = Base64.decode(key);
}
 

import com.microsoft.azure.storage.core.Base64; //导入方法依赖的package包/类
/**
 * Creates an instance of the <code>Credentials</code> class, using the specified storage account name and access
 * key; the specified access key is stored as a Base64-encoded <code>String</code>.
 * 
 * @param accountName
 *        A <code>String</code> that represents the name of the storage account.
 * 
 * @param key
 *        A <code>String</code> that represents the Base64-encoded account access key.
 * 
 */
public Credentials(final String accountName, final String key) {
    this(accountName, Base64.decode(key));
}
 

import com.microsoft.azure.storage.core.Base64; //导入方法依赖的package包/类
/**
 * Creates an instance of the <code>StorageCredentialsAccountAndKey</code> class, using the specified storage
 * account name and access key; the specified access key is stored as a <code>String</code>.
 * 
 * @param accountName
 *            A <code>String</code> that represents the name of the storage account.
 * @param key
 *            A <code>String</code> that represents the Base-64-encoded account access key.
 */
public StorageCredentialsAccountAndKey(final String accountName, final String key) {
    this(accountName, Base64.decode(key));
}
 

import com.microsoft.azure.storage.core.Base64; //导入方法依赖的package包/类
/**
 * Gets the value of this {@link EntityProperty} as a <code>byte</code> array.
 * 
 * @return
 *         A <code>byte[]</code> representation of the {@link EntityProperty} value, or <code>null</code>.
 */
public byte[] getValueAsByteArray() {
    return this.isNull ? null : Base64.decode(this.value);
}
 

import com.microsoft.azure.storage.core.Base64; //导入方法依赖的package包/类
/**
 * Gets the value of this {@link EntityProperty} as a <code>byte</code> array.
 * 
 * @return
 *         A <code>byte[]</code> representation of the {@link EntityProperty} value, or <code>null</code>.
 */
public byte[] getValueAsByteArray() {
    return this.getIsNull() ? null : Base64.decode(this.value);
}