package org.bouncycastle.asn1.ess; import org.bouncycastle.asn1.ASN1Encodable; import org.bouncycastle.asn1.ASN1EncodableVector; import org.bouncycastle.asn1.ASN1Object; import org.bouncycastle.asn1.ASN1OctetString; import org.bouncycastle.asn1.ASN1Primitive; import org.bouncycastle.asn1.ASN1Sequence; import org.bouncycastle.asn1.DERSequence; import org.bouncycastle.asn1.x509.AlgorithmIdentifier; import org.bouncycastle.asn1.x509.DigestInfo; import org.bouncycastle.asn1.x509.IssuerSerial; public class OtherCertID extends ASN1Object { private ASN1Encodable otherCertHash; private IssuerSerial issuerSerial; public static OtherCertID getInstance(Object o) { if (o instanceof OtherCertID) { return (OtherCertID) o; } else if (o != null) { return new OtherCertID(ASN1Sequence.getInstance(o)); } return null; } /** * constructor */ private OtherCertID(ASN1Sequence seq) { if (seq.size() < 1 || seq.size() > 2) { throw new IllegalArgumentException("Bad sequence size: " + seq.size()); } if (seq.getObjectAt(0).toASN1Primitive() instanceof ASN1OctetString) { otherCertHash = ASN1OctetString.getInstance(seq.getObjectAt(0)); } else { otherCertHash = DigestInfo.getInstance(seq.getObjectAt(0)); } if (seq.size() > 1) { issuerSerial = IssuerSerial.getInstance(seq.getObjectAt(1)); } } public OtherCertID( AlgorithmIdentifier algId, byte[] digest) { this.otherCertHash = new DigestInfo(algId, digest); } public OtherCertID( AlgorithmIdentifier algId, byte[] digest, IssuerSerial issuerSerial) { this.otherCertHash = new DigestInfo(algId, digest); this.issuerSerial = issuerSerial; } public AlgorithmIdentifier getAlgorithmHash() { if (otherCertHash.toASN1Primitive() instanceof ASN1OctetString) { // SHA-1 return new AlgorithmIdentifier("1.3.14.3.2.26"); } else { return DigestInfo.getInstance(otherCertHash).getAlgorithmId(); } } public byte[] getCertHash() { if (otherCertHash.toASN1Primitive() instanceof ASN1OctetString) { // SHA-1 return ((ASN1OctetString)otherCertHash.toASN1Primitive()).getOctets(); } else { return DigestInfo.getInstance(otherCertHash).getDigest(); } } public IssuerSerial getIssuerSerial() { return issuerSerial; } /** * <pre> * OtherCertID ::= SEQUENCE { * otherCertHash OtherHash, * issuerSerial IssuerSerial OPTIONAL } * * OtherHash ::= CHOICE { * sha1Hash OCTET STRING, * otherHash OtherHashAlgAndValue } * * OtherHashAlgAndValue ::= SEQUENCE { * hashAlgorithm AlgorithmIdentifier, * hashValue OCTET STRING } * * </pre> */ public ASN1Primitive toASN1Primitive() { ASN1EncodableVector v = new ASN1EncodableVector(); v.add(otherCertHash); if (issuerSerial != null) { v.add(issuerSerial); } return new DERSequence(v); } }