| Package | Description | 
|---|---|
| javax.crypto | 
 Provides the classes and interfaces for cryptographic operations. 
 | 
| Modifier and Type | Class and Description | 
|---|---|
class  | 
NullCipher
The NullCipher class is a class that provides an
 "identity cipher" -- one that does not tranform the plaintext. 
 | 
| Modifier and Type | Method and Description | 
|---|---|
static Cipher | 
Cipher.getInstance(String transformation)
Returns a  
Cipher object that implements the specified
 transformation. | 
static Cipher | 
Cipher.getInstance(String transformation,
           Provider provider)
Returns a  
Cipher object that implements the specified
 transformation. | 
static Cipher | 
Cipher.getInstance(String transformation,
           String provider)
Returns a  
Cipher object that implements the specified
 transformation. | 
| Modifier and Type | Method and Description | 
|---|---|
PKCS8EncodedKeySpec | 
EncryptedPrivateKeyInfo.getKeySpec(Cipher cipher)
Extract the enclosed PKCS8EncodedKeySpec object from the
 encrypted data and return it. 
 | 
Object | 
SealedObject.getObject(Cipher c)
Retrieves the original (encapsulated) object. 
 | 
| Constructor and Description | 
|---|
CipherInputStream(InputStream is,
                 Cipher c)
Constructs a CipherInputStream from an InputStream and a
 Cipher. 
 | 
CipherOutputStream(OutputStream os,
                  Cipher c)
Constructs a CipherOutputStream from an OutputStream and a
 Cipher. 
 | 
SealedObject(Serializable object,
            Cipher c)
Constructs a SealedObject from any Serializable object. 
 | 
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