1 files changed, 118 insertions, 0 deletions
diff --git a/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/OriginatorId.java b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/OriginatorId.java
new file mode 100644
index 000000000..eee06cea7
--- /dev/null
+++ b/libraries/spongycastle/pkix/src/main/java/org/spongycastle/cms/OriginatorId.java
@@ -0,0 +1,118 @@
+package org.spongycastle.cms;
+
+import java.math.BigInteger;
+
+import org.spongycastle.asn1.x500.X500Name;
+import org.spongycastle.util.Arrays;
+import org.spongycastle.util.Selector;
+
+/**
+ * a basic index for an originator.
+ */
+class OriginatorId
+    implements Selector
+{
+    private byte[] subjectKeyId;
+
+    private X500Name issuer;
+    private BigInteger serialNumber;
+
+    /**
+     * Construct a signer ID with the value of a public key's subjectKeyId.
+     *
+     * @param subjectKeyId a subjectKeyId
+     */
+    public OriginatorId(byte[] subjectKeyId)
+    {
+        setSubjectKeyID(subjectKeyId);
+    }
+
+    private void setSubjectKeyID(byte[] subjectKeyId)
+    {
+        this.subjectKeyId = subjectKeyId;
+    }
+
+    /**
+     * Construct a signer ID based on the issuer and serial number of the signer's associated
+     * certificate.
+     *
+     * @param issuer the issuer of the signer's associated certificate.
+     * @param serialNumber the serial number of the signer's associated certificate.
+     */
+    public OriginatorId(X500Name issuer, BigInteger serialNumber)
+    {
+        setIssuerAndSerial(issuer, serialNumber);
+    }
+
+    private void setIssuerAndSerial(X500Name issuer, BigInteger serialNumber)
+    {
+        this.issuer = issuer;
+        this.serialNumber = serialNumber;
+    }
+
+    /**
+     * Construct a signer ID based on the issuer and serial number of the signer's associated
+     * certificate.
+     *
+     * @param issuer the issuer of the signer's associated certificate.
+     * @param serialNumber the serial number of the signer's associated certificate.
+     * @param subjectKeyId the subject key identifier to use to match the signers associated certificate.
+     */
+    public OriginatorId(X500Name issuer, BigInteger serialNumber, byte[] subjectKeyId)
+    {
+        setIssuerAndSerial(issuer, serialNumber);
+        setSubjectKeyID(subjectKeyId);
+    }
+
+    public X500Name getIssuer()
+    {
+        return issuer;
+    }
+
+    public Object clone()
+    {
+        return new OriginatorId(this.issuer, this.serialNumber, this.subjectKeyId);
+    }
+
+    public int hashCode()
+    {
+        int code = Arrays.hashCode(subjectKeyId);
+
+        if (this.serialNumber != null)
+        {
+            code ^= this.serialNumber.hashCode();
+        }
+
+        if (this.issuer != null)
+        {
+            code ^= this.issuer.hashCode();
+        }
+
+        return code;
+    }
+
+    public boolean equals(
+        Object  o)
+    {
+        if (!(o instanceof OriginatorId))
+        {
+            return false;
+        }
+
+        OriginatorId id = (OriginatorId)o;
+
+        return Arrays.areEqual(subjectKeyId, id.subjectKeyId)
+            && equalsObj(this.serialNumber, id.serialNumber)
+            && equalsObj(this.issuer, id.issuer);
+    }
+
+    private boolean equalsObj(Object a, Object b)
+    {
+        return (a != null) ? a.equals(b) : b == null;
+    }
+
+    public boolean match(Object obj)
+    {
+        return false;
+    }
+}