1 files changed, 21 insertions, 0 deletions
diff --git a/core/src/main/java/org/spongycastle/crypto/ec/ECUtil.java b/core/src/main/java/org/spongycastle/crypto/ec/ECUtil.java
new file mode 100644
index 00000000..cbfaaaa6
--- /dev/null
+++ b/core/src/main/java/org/spongycastle/crypto/ec/ECUtil.java
@@ -0,0 +1,21 @@
+package org.spongycastle.crypto.ec;
+
+import java.math.BigInteger;
+import java.security.SecureRandom;
+
+import org.spongycastle.math.ec.ECConstants;
+
+class ECUtil
+{
+    static BigInteger generateK(BigInteger n, SecureRandom random)
+    {
+        int nBitLength = n.bitLength();
+        BigInteger k;
+        do
+        {
+            k = new BigInteger(nBitLength, random);
+        }
+        while (k.equals(ECConstants.ZERO) || (k.compareTo(n) >= 0));
+        return k;
+    }
+}