Merge "Merge remote-tracking branch 'aosp/upstream-master' into merge-152-from-upstream"

1 files changed, 63 insertions, 0 deletions

diff --git a/bcprov/src/main/java/org/bouncycastle/pqc/jcajce/spec/McElieceCCA2ParameterSpec.java b/bcprov/src/main/java/org/bouncycastle/pqc/jcajce/spec/McElieceCCA2ParameterSpec.java
new file mode 100644
index 0000000..d98a8f5
--- /dev/null
+++ b/bcprov/src/main/java/org/bouncycastle/pqc/jcajce/spec/McElieceCCA2ParameterSpec.java
@@ -0,0 +1,63 @@
+package org.bouncycastle.pqc.jcajce.spec;
+
+
+import java.security.spec.AlgorithmParameterSpec;
+
+/**
+ * This class provides a specification for the parameters of the CCA2-secure
+ * variants of the McEliece PKCS that are used with
+ * {@link McElieceFujisakiCipher}, {@link McElieceKobaraImaiCipher}, and
+ * {@link McEliecePointchevalCipher}.
+ *
+ * @see McElieceFujisakiCipher
+ * @see McElieceKobaraImaiCipher
+ * @see McEliecePointchevalCipher
+ */
+public class McElieceCCA2ParameterSpec
+    implements AlgorithmParameterSpec
+{
+
+    /**
+     * The default message digest ("SHA256").
+     */
+    public static final String DEFAULT_MD = "SHA256";
+
+    private String mdName;
+
+    /**
+     * Construct the default parameters. Choose the
+     */
+    public McElieceCCA2ParameterSpec()
+    {
+        this(DEFAULT_MD);
+    }
+
+    /**
+     * Constructor.
+     *
+     * @param mdName the name of the hash function
+     */
+    public McElieceCCA2ParameterSpec(String mdName)
+    {
+        // check whether message digest is available
+        // TODO: this method not used!
+//        try {
+//            Registry.getMessageDigest(mdName);
+//        } catch (NoSuchAlgorithmException nsae) {
+//            throw new InvalidParameterException("Message digest '" + mdName
+//                    + "' not found'.");
+//        }
+
+        // assign message digest name
+        this.mdName = mdName;
+    }
+
+    /**
+     * @return the name of the hash function
+     */
+    public String getMDName()
+    {
+        return mdName;
+    }
+
+}