X509EncodedKeySpec
public
class
X509EncodedKeySpec
extends EncodedKeySpec
java.lang.Object | ||
↳ | java.security.spec.EncodedKeySpec | |
↳ | java.security.spec.X509EncodedKeySpec |
This class represents the ASN.1 encoding of a public key,
encoded according to the ASN.1 type SubjectPublicKeyInfo
.
The SubjectPublicKeyInfo
syntax is defined in the X.509
standard as follows:
SubjectPublicKeyInfo ::= SEQUENCE { algorithm AlgorithmIdentifier, subjectPublicKey BIT STRING }
Summary
Public constructors | |
---|---|
X509EncodedKeySpec(byte[] encodedKey)
Creates a new |
|
X509EncodedKeySpec(byte[] encodedKey, String algorithm)
Creates a new |
Public methods | |
---|---|
byte[]
|
getEncoded()
Returns the key bytes, encoded according to the X.509 standard. |
final
String
|
getFormat()
Returns the name of the encoding format associated with this key specification. |
Inherited methods | |
---|---|
Public constructors
X509EncodedKeySpec
public X509EncodedKeySpec (byte[] encodedKey)
Creates a new X509EncodedKeySpec
with the given encoded key.
Parameters | |
---|---|
encodedKey |
byte : the key, which is assumed to be
encoded according to the X.509 standard. The contents of the
array are copied to protect against subsequent modification. |
Throws | |
---|---|
NullPointerException |
if encodedKey
is null. |
X509EncodedKeySpec
public X509EncodedKeySpec (byte[] encodedKey, String algorithm)
Creates a new X509EncodedKeySpec
with the given encoded key.
This constructor is useful when subsequent callers of the
X509EncodedKeySpec
object might not know the algorithm
of the key.
Parameters | |
---|---|
encodedKey |
byte : the key, which is assumed to be
encoded according to the X.509 standard. The contents of the
array are copied to protect against subsequent modification. |
algorithm |
String : the algorithm name of the encoded public 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
getEncoded
public byte[] getEncoded ()
Returns the key bytes, encoded according to the X.509 standard.
Returns | |
---|---|
byte[] |
the X.509 encoding of the key. Returns a new array each time this method is called. |
getFormat
public final String getFormat ()
Returns the name of the encoding format associated with this key specification.
Returns | |
---|---|
String |
the string "X.509" . |