EncodedKeySpec

public abstract class EncodedKeySpec
extends Object implements KeySpec

java.lang.Object
↳	java.security.spec.EncodedKeySpec

Known direct subclasses

PKCS8EncodedKeySpec, X509EncodedKeySpec, XdhKeySpec

PKCS8EncodedKeySpec	This class represents the ASN.1 encoding of a private key, encoded according to the ASN.1 type `PrivateKeyInfo`.
X509EncodedKeySpec	This class represents the ASN.1 encoding of a public key, encoded according to the ASN.1 type `SubjectPublicKeyInfo`.
XdhKeySpec	External Diffie\u2013Hellman (XDH) key spec holding either a public or private key.

This class represents a public or private key in encoded format.

See also:

Summary

Public constructors
`EncodedKeySpec(byte[] encodedKey)` Creates a new `EncodedKeySpec` with the given encoded key.

Protected constructors
`EncodedKeySpec(byte[] encodedKey, String algorithm)` Creates a new `EncodedKeySpec` with the given encoded key.

Public methods
`String`	`getAlgorithm()` Returns the name of the algorithm of the encoded key.
`byte[]`	`getEncoded()` Returns the encoded key.
`abstract String`	`getFormat()` Returns the name of the encoding format associated with this key specification.

Inherited methods

From class


        
          java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long timeoutMillis, int nanos)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis)` Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait()` Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

EncodedKeySpec

Added in API level 1

public EncodedKeySpec (byte[] encodedKey)

Creates a new EncodedKeySpec with the given encoded key.

Parameters
`encodedKey`	`byte`: the encoded key. The contents of the array are copied to protect against subsequent modification.

Throws
`NullPointerException`	if `encodedKey` is null.

Protected constructors

EncodedKeySpec

Added in API level 35

protected EncodedKeySpec (byte[] encodedKey, 
                String algorithm)

Creates a new EncodedKeySpec with the given encoded key. This constructor is useful when subsequent callers of the EncodedKeySpec object might not know the algorithm of the key.

Parameters
`encodedKey`	`byte`: the encoded key. The contents of the array are copied to protect against subsequent modification.
`algorithm`	`String`: the algorithm name of the encoded key See the KeyFactory section in the Java Security Standard Algorithm Names Specification for information about standard algorithm names.

Throws
`NullPointerException`	if `encodedKey` or `algorithm` is null.
`IllegalArgumentException`	if `algorithm` is the empty string `""`

Public methods

getAlgorithm

Added in API level 35

public String getAlgorithm ()

Returns the name of the algorithm of the encoded key.

Returns
`String`	the name of the algorithm, or null if not specified

getEncoded

Added in API level 1

public byte[] getEncoded ()

Returns the encoded key.

Returns
`byte[]`	the encoded key. Returns a new array each time this method is called.

getFormat

Added in API level 1

public abstract String getFormat ()

Returns the name of the encoding format associated with this key specification.

If the opaque representation of a key (see Key) can be transformed (see KeyFactory) into this key specification (or a subclass of it), getFormat called on the opaque key returns the same value as the getFormat method of this key specification.

Returns
`String`	a string representation of the encoding format.