Package org.bouncycastle.asn1.x509

Class SubjectPublicKeyInfo

java.lang.Object

org.bouncycastle.asn1.ASN1Object

org.bouncycastle.asn1.x509.SubjectPublicKeyInfo

All Implemented Interfaces:

ASN1Encodable, Encodable

public class SubjectPublicKeyInfo
extends ASN1Object

The object that contains the public key stored in a certificate.

The getEncoded() method in the public keys in the JCE produces a DER encoded one of these.

Constructor Summary

Constructors

Constructor	Description
SubjectPublicKeyInfo(AlgorithmIdentifier algId, byte[] publicKey)
SubjectPublicKeyInfo(AlgorithmIdentifier algId, ASN1Encodable publicKey)

Method Summary

Modifier and Type	Method	Description
AlgorithmIdentifier	getAlgorithm()
static SubjectPublicKeyInfo	getInstance(Object obj)
static SubjectPublicKeyInfo	getInstance(ASN1TaggedObject obj, boolean explicit)
DERBitString	getPublicKeyData()	for when the public key is raw bits.
ASN1Primitive	parsePublicKey()	for when the public key is an encoded object - if the bitstring can't be decoded this routine throws an IOException.
ASN1Primitive	toASN1Primitive()	Produce an object suitable for an ASN1OutputStream.

Methods inherited from class org.bouncycastle.asn1.ASN1Object

encodeTo, encodeTo, equals, getEncoded, getEncoded, hasEncodedTagValue, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SubjectPublicKeyInfo

public SubjectPublicKeyInfo(AlgorithmIdentifier algId,
 ASN1Encodable publicKey)
                     throws IOException

Throws:

IOException

SubjectPublicKeyInfo

public SubjectPublicKeyInfo(AlgorithmIdentifier algId,
 byte[] publicKey)

Method Details

getInstance

public static SubjectPublicKeyInfo getInstance(ASN1TaggedObject obj,
 boolean explicit)

getInstance

public static SubjectPublicKeyInfo getInstance(Object obj)

getAlgorithm

public AlgorithmIdentifier getAlgorithm()

parsePublicKey

public ASN1Primitive parsePublicKey()
                             throws IOException

for when the public key is an encoded object - if the bitstring can't be decoded this routine throws an IOException.

Returns:

the public key as an ASN.1 primitive.

Throws:

IOException - - if the bit string doesn't represent a DER encoded object.

getPublicKeyData

public DERBitString getPublicKeyData()

for when the public key is raw bits.

Returns:

the public key as the raw bit string...

toASN1Primitive

public ASN1Primitive toASN1Primitive()

Produce an object suitable for an ASN1OutputStream.

 SubjectPublicKeyInfo ::= SEQUENCE {
                          algorithm AlgorithmIdentifier,
                          publicKey BIT STRING }
 

Specified by:

toASN1Primitive in interface ASN1Encodable

Specified by:

toASN1Primitive in class ASN1Object

Returns:

a primitive representation of this object.