1 files changed, 48 insertions, 0 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/params/RSAKeyGenerationParameters.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/params/RSAKeyGenerationParameters.java
new file mode 100644
index 000000000..6c0470591
--- /dev/null
+++ b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/params/RSAKeyGenerationParameters.java
@@ -0,0 +1,48 @@
+package org.spongycastle.crypto.params;
+
+import java.math.BigInteger;
+import java.security.SecureRandom;
+
+import org.spongycastle.crypto.KeyGenerationParameters;
+
+public class RSAKeyGenerationParameters
+    extends KeyGenerationParameters
+{
+    private BigInteger publicExponent;
+    private int certainty;
+
+    public RSAKeyGenerationParameters(
+        BigInteger      publicExponent,
+        SecureRandom    random,
+        int             strength,
+        int             certainty)
+    {
+        super(random, strength);
+
+        if (strength < 12)
+        {
+            throw new IllegalArgumentException("key strength too small");
+        }
+
+        //
+        // public exponent cannot be even
+        //
+        if (!publicExponent.testBit(0)) 
+        {
+                throw new IllegalArgumentException("public exponent cannot be even");
+        }
+        
+        this.publicExponent = publicExponent;
+        this.certainty = certainty;
+    }
+
+    public BigInteger getPublicExponent()
+    {
+        return publicExponent;
+    }
+
+    public int getCertainty()
+    {
+        return certainty;
+    }
+}