1 package org.bouncycastle.cms; 2 3 import java.math.BigInteger; 4 5 import org.bouncycastle.asn1.x500.X500Name; 6 import org.bouncycastle.cert.selector.X509CertificateHolderSelector; 7 import org.bouncycastle.util.Selector; 8 9 /** 10 * a basic index for a signer. 11 */ 12 public class SignerId 13 implements Selector 14 { 15 private X509CertificateHolderSelector baseSelector; 16 SignerId(X509CertificateHolderSelector baseSelector)17 private SignerId(X509CertificateHolderSelector baseSelector) 18 { 19 this.baseSelector = baseSelector; 20 } 21 22 /** 23 * Construct a signer ID with the value of a public key's subjectKeyId. 24 * 25 * @param subjectKeyId a subjectKeyId 26 */ SignerId(byte[] subjectKeyId)27 public SignerId(byte[] subjectKeyId) 28 { 29 this(null, null, subjectKeyId); 30 } 31 32 /** 33 * Construct a signer ID based on the issuer and serial number of the signer's associated 34 * certificate. 35 * 36 * @param issuer the issuer of the signer's associated certificate. 37 * @param serialNumber the serial number of the signer's associated certificate. 38 */ SignerId(X500Name issuer, BigInteger serialNumber)39 public SignerId(X500Name issuer, BigInteger serialNumber) 40 { 41 this(issuer, serialNumber, null); 42 } 43 44 /** 45 * Construct a signer ID based on the issuer and serial number of the signer's associated 46 * certificate. 47 * 48 * @param issuer the issuer of the signer's associated certificate. 49 * @param serialNumber the serial number of the signer's associated certificate. 50 * @param subjectKeyId the subject key identifier to use to match the signers associated certificate. 51 */ SignerId(X500Name issuer, BigInteger serialNumber, byte[] subjectKeyId)52 public SignerId(X500Name issuer, BigInteger serialNumber, byte[] subjectKeyId) 53 { 54 this(new X509CertificateHolderSelector(issuer, serialNumber, subjectKeyId)); 55 } 56 getIssuer()57 public X500Name getIssuer() 58 { 59 return baseSelector.getIssuer(); 60 } 61 getSerialNumber()62 public BigInteger getSerialNumber() 63 { 64 return baseSelector.getSerialNumber(); 65 } 66 getSubjectKeyIdentifier()67 public byte[] getSubjectKeyIdentifier() 68 { 69 return baseSelector.getSubjectKeyIdentifier(); 70 } 71 hashCode()72 public int hashCode() 73 { 74 return baseSelector.hashCode(); 75 } 76 equals( Object o)77 public boolean equals( 78 Object o) 79 { 80 if (!(o instanceof SignerId)) 81 { 82 return false; 83 } 84 85 SignerId id = (SignerId)o; 86 87 return this.baseSelector.equals(id.baseSelector); 88 } 89 match(Object obj)90 public boolean match(Object obj) 91 { 92 if (obj instanceof SignerInformation) 93 { 94 return ((SignerInformation)obj).getSID().equals(this); 95 } 96 97 return baseSelector.match(obj); 98 } 99 clone()100 public Object clone() 101 { 102 return new SignerId(this.baseSelector); 103 } 104 } 105