Implement StandaloneWrongSuite. (#12)

* Add StandaloneWrongSuite.

* Partially implement StandaloneWrongSuite.

* Add setParam method to EC_Params.

* Fix new setParam method in EC_Params.

* Implement StandaloneWrongSuite

* Add custom classes for testing wrong curve parameters.

* Update custom classes.

* Add more custom classes for testing curves with wrong parameters.

* Modify StandaloneWrongSuite to work with the new custom classes.

* Various small cosmetic changes to new custom classes.

* Add missing author information to various classes.

* Fix a small mistake in CustomECFieldF2m

* Add randomG test, change some variables to final.

* Add option to skip certain tests + various small changes.

1 files changed, 67 insertions, 0 deletions

diff --git a/src/cz/crcs/ectester/common/ec/CustomECFieldF2m.java b/src/cz/crcs/ectester/common/ec/CustomECFieldF2m.java
new file mode 100644
index 0000000..24ea5aa
--- /dev/null
+++ b/src/cz/crcs/ectester/common/ec/CustomECFieldF2m.java
@@ -0,0 +1,67 @@
+package cz.crcs.ectester.common.ec;
+
+import java.math.BigInteger;
+import java.security.spec.ECFieldF2m;
+import java.util.Arrays;
+
+/**
+ * @author David Hofman
+ */
+public class CustomECFieldF2m extends ECFieldF2m {
+    private int m;
+    private int[] ks;
+    private BigInteger rp;
+
+    public CustomECFieldF2m(int m, int[] ks) {
+        //feed the constructor of the superclass some default, valid data
+        //getters will return custom parameters instead
+        super(163, new int[] {3, 2, 1});
+        this.m = m;
+        this.ks = ks.clone();
+
+        //causes ArithmeticException if m < 0 or any element of ks < 0
+        this.rp = BigInteger.ONE;
+        this.rp = this.rp.setBit(m);
+        for(int i = 0; i < this.ks.length; ++i) {
+            this.rp = this.rp.setBit(this.ks[i]);
+        }
+    }
+
+    @Override
+    public int getFieldSize() {
+        return m;
+    }
+
+    @Override
+    public int getM() {
+        return m;
+    }
+
+    @Override
+    public int[] getMidTermsOfReductionPolynomial() {
+        return ks.clone();
+    }
+
+    @Override
+    public BigInteger getReductionPolynomial() {
+        return rp;
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) {
+            return true;
+        } else if (!(o instanceof CustomECFieldF2m)) {
+            return false;
+        } else {
+            return m == ((CustomECFieldF2m) o).m && Arrays.equals(ks, ((CustomECFieldF2m) o).ks);
+        }
+    }
+
+    @Override
+    public int hashCode() {
+        int hash = m << 5;
+        hash += rp == null ? 0 : rp.hashCode();
+        return hash;
+    }
+}