Examples of codec.x509.SubjectPublicKeyInfo

org.bouncycastle.asn1.x509.SubjectPublicKeyInfo
Subject Public Key Info according to RFC2459. Consists of an AlgorithmID and the corresponding public key
```
 SubjectPublicKeyInfo  ::=  SEQUENCE  { algorithm            AlgorithmIdentifier, subjectPublicKey     BIT STRING } 
```
Raw public key material embedded in this structure need not be ASN.1/DER encoded. Some crypto systems such as elliptic curve systems use specific encodings of keys. For this reason, keys can be retrieved by means of two alternative ways:
- Raw encoded keys, returned as byte arrays, and
- Raw decoded keys, returned as ASN.1 types.
Only ASN.1/DER is supported as decoding method. Keys encoded in another code must be decoded externally. Creation date: (18.08.99 15:23:09) @author Markus Tak @version "$Id: SubjectPublicKeyInfo.java,v 1.3 2004/08/16 08:53:58 pebingerExp $"

        BigInteger serialNumber = BigInteger.valueOf(555L); 
        AlgorithmIdentifier signature = new AlgorithmIdentifier("1.2.3.44.555");
        Name issuer = new Name("O=Certificate Issuer");
        Validity validity = new Validity(new Date(100000000), 
                                         new Date(200000000));
        SubjectPublicKeyInfo subjectPublicKeyInfo = 
            new SubjectPublicKeyInfo(
                    new AlgorithmIdentifier("1.2.840.113549.1.1.2"), 
                                            new byte[10]);
        boolean[] issuerUniqueID  = new boolean[] 
                    {true, false, true, false, true, false, true, false};
        boolean[] subjectUniqueID = new boolean[]

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                new Certificate(
                    new TBSCertificate(2, certSerialNumber1, signature, 
                        new Name(certIssuerName), 
                        new Validity(new Date(), new Date()),
                    new Name(certIssuerName), 
                    new SubjectPublicKeyInfo(signature, new byte[10]),
                    null, null, null),
                signature, new byte[10]));
            X509CertImpl cert2 = new X509CertImpl(
                new Certificate(
                    new TBSCertificate(2, certSerialNumber2, signature, 
                        new Name(certIssuerName), 
                        new Validity(new Date(), new Date()),
                    new Name(certIssuerName), 
                    new SubjectPublicKeyInfo(signature, new byte[10]),
                    null, null, null),
                signature, new byte[10]));
            X509CertImpl cert3 = new X509CertImpl(
                new Certificate(
                    new TBSCertificate(2, certSerialNumber3, signature, 
                        new Name("O=Another Cert Issuer"), 
                        new Validity(new Date(), new Date()),
                    new Name(certIssuerName), 
                    new SubjectPublicKeyInfo(signature, new byte[10]),
                    null, null, null),
                signature, new byte[10]));
            assertNull("Certificate should not be presented in CRL " 
                    + "because issuer is not the same as CRL issuer", 
                    crl.getRevokedCertificate(cert1));

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                new Certificate(
                    new TBSCertificate(2, certSerialNumber1, signature, 
                        new Name(certIssuerName), 
                        new Validity(new Date(), new Date()),
                    new Name(certIssuerName), 
                    new SubjectPublicKeyInfo(signature, new byte[10]),
                    null, null, null),
                signature, new byte[10]));
            X509CertImpl cert2 = new X509CertImpl(
                new Certificate(
                    new TBSCertificate(2, certSerialNumber2, signature, 
                        new Name(certIssuerName), 
                        new Validity(new Date(), new Date()),
                    new Name(certIssuerName), 
                    new SubjectPublicKeyInfo(signature, new byte[10]),
                    null, null, null),
                signature, new byte[10]));
            X509CertImpl cert3 = new X509CertImpl(
                new Certificate(
                    new TBSCertificate(2, certSerialNumber3, signature, 
                        new Name("O=Another Cert Issuer"), 
                        new Validity(new Date(), new Date()),
                    new Name(certIssuerName), 
                    new SubjectPublicKeyInfo(signature, new byte[10]),
                    null, null, null),
                signature, new byte[10]));
            assertFalse("Certificate should not be presented in CRL " 
                    + "because issuer is not the same as CRL issuer", 
                    crl.isRevoked(cert1));

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            throw (IOException) new IOException(
                    "Failed to generate a distinguished name. ").initCause(e);
        }


        // generate a SubjectPublicKeyInfo
        SubjectPublicKeyInfo subjectPublicKeyInfo = null;
        try {
            subjectPublicKeyInfo = (SubjectPublicKeyInfo) SubjectPublicKeyInfo.ASN1
                    .decode(publicKey.getEncoded());
        } catch (IOException e) {
            throw (IOException) new IOException(

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            params = new X962Parameters(ecP);
        }


        ASN1OctetString    p = (ASN1OctetString)(new X9ECPoint(this.getQ()).getDERObject());


        SubjectPublicKeyInfo info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());


        try
        {
            dOut.writeObject(info);
            dOut.close();

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    public void setPublicKey(
        PublicKey       key)
    {
        try
        {
            tbsGen.setSubjectPublicKeyInfo(new SubjectPublicKeyInfo((ASN1Sequence)new DERInputStream(
                                new ByteArrayInputStream(key.getEncoded())).readObject()));
        }
        catch (Exception e)
        {
            throw new IllegalArgumentException("unable to process key - " + e.toString());

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    public byte[] getEncoded()
    {
        ByteArrayOutputStream   bOut = new ByteArrayOutputStream();
        DEROutputStream         dOut = new DEROutputStream(bOut);
        SubjectPublicKeyInfo    info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(PKCSObjectIdentifiers.rsaEncryption, new DERNull()), new RSAPublicKeyStructure(getModulus(), getPublicExponent()).getDERObject());


        try
        {
            dOut.writeObject(info);
            dOut.close();

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        ByteArrayInputStream    bIn = new ByteArrayInputStream(bytes);
        DERInputStream          dIn = new DERInputStream(bIn);


        try
        {
            this.reqInfo = new CertificationRequestInfo(subject, new SubjectPublicKeyInfo((ASN1Sequence)dIn.readObject()), attributes);
        }
        catch (IOException e)
        {
            throw new IllegalArgumentException("can't encode public key");
        }

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    public PublicKey getPublicKey(
        String  provider)
        throws NoSuchAlgorithmException, NoSuchProviderException,
                InvalidKeyException
    {
        SubjectPublicKeyInfo    subjectPKInfo = reqInfo.getSubjectPublicKeyInfo();


        try
        {
            X509EncodedKeySpec      xspec = new X509EncodedKeySpec(new DERBitString(subjectPKInfo).getBytes());
            AlgorithmIdentifier     keyAlg = subjectPKInfo.getAlgorithmId ();


            return KeyFactory.getInstance(keyAlg.getObjectId().getId (), provider).generatePublic(xspec);
        }
        catch (InvalidKeySpecException e)
        {

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    public void setPublicKey(
        PublicKey       key)
    {
        try
        {
            tbsGen.setSubjectPublicKeyInfo(new SubjectPublicKeyInfo((ASN1Sequence)new DERInputStream(
                                new ByteArrayInputStream(key.getEncoded())).readObject()));
        }
        catch (Exception e)
        {
            throw new IllegalArgumentException("unable to process key - " + e.toString());

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Related Classes of codec.x509.SubjectPublicKeyInfo

codec.asn1.ASN1BitString

codec.asn1.ASN1Boolean

codec.asn1.ASN1Choice

codec.asn1.ASN1GeneralizedTime

codec.asn1.ASN1IA5String

codec.asn1.ASN1Integer

codec.asn1.ASN1ObjectIdentifier

codec.asn1.ASN1OctetString

codec.asn1.ASN1Opaque

codec.asn1.ASN1Sequence

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