1 files changed, 53 insertions, 0 deletions
diff --git a/core/src/main/java/org/spongycastle/crypto/params/CramerShoupParameters.java b/core/src/main/java/org/spongycastle/crypto/params/CramerShoupParameters.java
new file mode 100644
index 00000000..d1504bab
--- /dev/null
+++ b/core/src/main/java/org/spongycastle/crypto/params/CramerShoupParameters.java
@@ -0,0 +1,53 @@
+package org.spongycastle.crypto.params;
+
+import java.math.BigInteger;
+
+import org.spongycastle.crypto.CipherParameters;
+import org.spongycastle.crypto.Digest;
+
+public class CramerShoupParameters implements CipherParameters {
+
+	private BigInteger p; // prime order of G
+	private BigInteger g1, g2; // generate G
+	
+	private Digest H; // hash function
+
+	public CramerShoupParameters(BigInteger p, BigInteger g1, BigInteger g2, Digest H) {
+		this.p = p;
+		this.g1 = g1;
+		this.g2 = g2;
+		this.H = H;
+	}
+
+	public boolean equals(Object obj) {
+		if (!(obj instanceof DSAParameters)) {
+			return false;
+		}
+
+		CramerShoupParameters pm = (CramerShoupParameters) obj;
+
+		return (pm.getP().equals(p) && pm.getG1().equals(g1) && pm.getG2().equals(g2));
+	}
+
+	public int hashCode() {
+		return getP().hashCode() ^ getG1().hashCode() ^ getG2().hashCode();
+	}
+	
+	public BigInteger getG1() {
+		return g1;
+	}
+	
+	public BigInteger getG2() {
+		return g2;
+	}
+	
+	public BigInteger getP() {
+		return p;
+	}
+	
+	public Digest getH() {
+		H.reset();
+		return H;
+	}
+	
+}