Example usage for org.bouncycastle.asn1 ASN1Integer getPositiveValue

Introduction

In this page you can find the example usage for org.bouncycastle.asn1 ASN1Integer getPositiveValue.

Prototype

public BigInteger getPositiveValue()

Source Link

Document

in some cases positive values get crammed into a space, that's not quite big enough...

Usage

From source file:be.fedict.trust.crl.CrlTrustLinker.java

License:Open Source License

private static BigInteger getCrlNumber(X509CRL crl) {
    byte[] crlNumberExtensionValue = crl.getExtensionValue(Extension.cRLNumber.getId());
    if (null == crlNumberExtensionValue) {
        return null;
    }//from   w ww. j  a va 2 s .  c  o  m
    try {
        ASN1OctetString octetString = (ASN1OctetString) (new ASN1InputStream(
                new ByteArrayInputStream(crlNumberExtensionValue)).readObject());
        byte[] octets = octetString.getOctets();
        ASN1Integer integer = (ASN1Integer) new ASN1InputStream(octets).readObject();
        BigInteger crlNumber = integer.getPositiveValue();
        return crlNumber;
    } catch (IOException e) {
        throw new RuntimeException("IO error: " + e.getMessage(), e);
    }
}

From source file:de.thiemann.ssl.report.model.CertificateV3.java

License:Open Source License

private PubKeyInfo transferPublicKeyInfo(byte[] encodedPublicKey) {
    PubKeyInfo info = new PubKeyInfo();

    try {/*from ww w.  j  a  v  a2s.c o  m*/
        SubjectPublicKeyInfo subPubKeyInfo = new SubjectPublicKeyInfo(
                (ASN1Sequence) ASN1Object.fromByteArray(encodedPublicKey));
        String asn1PubKeyId = subPubKeyInfo.getAlgorithmId().getAlgorithm().getId();

        if (asn1PubKeyId.equals(ASN1PublicKeyIds.RSA.getOid())) {
            DERSequence seq = (DERSequence) subPubKeyInfo.getPublicKey();
            ASN1Integer iModulus = (ASN1Integer) seq.getObjectAt(0);
            BigInteger modulus = iModulus.getPositiveValue();

            info.pubKeyAlgorithm = ASN1PublicKeyIds.RSA.name();
            info.pubKeySize = modulus.bitLength();
        } else if (asn1PubKeyId.equals(ASN1PublicKeyIds.DSA.getOid())) {
            info.pubKeyAlgorithm = ASN1PublicKeyIds.DSA.name();
        } else if (asn1PubKeyId.equals(ASN1PublicKeyIds.Diffie_Hellman.getOid())) {
            info.pubKeyAlgorithm = ASN1PublicKeyIds.Diffie_Hellman.name();
        } else if (asn1PubKeyId.equals(ASN1PublicKeyIds.KEA.getOid())) {
            info.pubKeyAlgorithm = ASN1PublicKeyIds.KEA.name();
        } else if (asn1PubKeyId.equals(ASN1PublicKeyIds.ECDH.getOid())) {
            info.pubKeyAlgorithm = ASN1PublicKeyIds.ECDH.name();
        } else
            info.pubKeyAlgorithm = "Unknown public key! OID: " + asn1PubKeyId;

    } catch (IOException e) {
        e.printStackTrace();
    }

    return info;
}

From source file:de.tsenger.animamea.asn1.AmDHPublicKey.java

License:Open Source License

/** Returns prime modulus p
 * @return/*from w  ww . ja  va2 s.  com*/
 */
public BigInteger getP() {
    if (p == null)
        return null;
    ASN1Integer derInt = (ASN1Integer) p.getObjectParser(BERTags.INTEGER, false);
    return derInt.getPositiveValue();
}

From source file:de.tsenger.animamea.asn1.AmDHPublicKey.java

License:Open Source License

/** Returns generator g
 * @return/* ww w  .j  a  v a 2 s  . c om*/
 */
public BigInteger getG() {
    if (g == null)
        return null;
    ASN1Integer derInt = (ASN1Integer) g.getObjectParser(BERTags.INTEGER, false);
    return derInt.getPositiveValue();
}

From source file:de.tsenger.animamea.asn1.AmDHPublicKey.java

License:Open Source License

/** Returns oder of the subgroup q
 * @return/*from  www .  j  a  va 2s. c  om*/
 */
public BigInteger getQ() {
    if (q == null)
        return null;
    ASN1Integer derInt = (ASN1Integer) q.getObjectParser(BERTags.INTEGER, false);
    return derInt.getPositiveValue();
}

From source file:de.tsenger.animamea.asn1.AmDHPublicKey.java

License:Open Source License

@Override
public BigInteger getY() {
    if (y == null)
        return null;
    ASN1Integer derInt = (ASN1Integer) y.getObjectParser(BERTags.INTEGER, false);
    return derInt.getPositiveValue();
}

From source file:de.tsenger.animamea.asn1.AmECPublicKey.java

License:Open Source License

/** Returns prime modulus p
 * @return/* w ww. j  a v  a  2s  . co  m*/
 */
public BigInteger getP() {
    if (p == null)
        return null;
    ASN1Integer derInt = ASN1Integer.getInstance(p, false);
    return derInt.getPositiveValue();
}

From source file:de.tsenger.animamea.asn1.AmECPublicKey.java

License:Open Source License

/** Returns first coefficient a
 * @return//from  w  w w.  j a  v  a  2s.com
 */
public BigInteger getA() {
    if (a == null)
        return null;
    ASN1Integer derInt = ASN1Integer.getInstance(a, false);
    return derInt.getPositiveValue();
}

From source file:de.tsenger.animamea.asn1.AmECPublicKey.java

License:Open Source License

/** Returns second coefficient b
 * @return/*  w  w  w  . j  a  v a 2 s.co m*/
 */
public BigInteger getB() {
    if (b == null)
        return null;
    ASN1Integer derInt = ASN1Integer.getInstance(b, false);
    return derInt.getPositiveValue();
}

From source file:de.tsenger.animamea.asn1.AmECPublicKey.java

License:Open Source License

/** Returns order of the base point r
 * @return//from  w w  w.j av  a  2 s  .c  om
 */
public BigInteger getR() {
    if (r == null)
        return null;
    ASN1Integer derInt = ASN1Integer.getInstance(r, false);
    return derInt.getPositiveValue();
}