1 files changed, 157 insertions, 0 deletions
diff --git a/libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/symmetric/GOST28147.java b/libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/symmetric/GOST28147.java
new file mode 100644
index 000000000..8b4404298
--- /dev/null
+++ b/libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/symmetric/GOST28147.java
@@ -0,0 +1,157 @@
+package org.spongycastle.jcajce.provider.symmetric;
+
+import java.security.AlgorithmParameters;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.SecureRandom;
+import java.security.spec.AlgorithmParameterSpec;
+
+import javax.crypto.spec.IvParameterSpec;
+
+import org.spongycastle.asn1.cryptopro.CryptoProObjectIdentifiers;
+import org.spongycastle.crypto.BufferedBlockCipher;
+import org.spongycastle.crypto.CipherKeyGenerator;
+import org.spongycastle.crypto.engines.GOST28147Engine;
+import org.spongycastle.crypto.macs.GOST28147Mac;
+import org.spongycastle.crypto.modes.CBCBlockCipher;
+import org.spongycastle.crypto.modes.GCFBBlockCipher;
+import org.spongycastle.jcajce.provider.config.ConfigurableProvider;
+import org.spongycastle.jcajce.provider.symmetric.util.BaseAlgorithmParameterGenerator;
+import org.spongycastle.jcajce.provider.symmetric.util.BaseBlockCipher;
+import org.spongycastle.jcajce.provider.symmetric.util.BaseKeyGenerator;
+import org.spongycastle.jcajce.provider.symmetric.util.BaseMac;
+import org.spongycastle.jcajce.provider.symmetric.util.IvAlgorithmParameters;
+import org.spongycastle.jcajce.provider.util.AlgorithmProvider;
+import org.spongycastle.jce.provider.BouncyCastleProvider;
+
+public final class GOST28147
+{
+    private GOST28147()
+    {
+    }
+    
+    public static class ECB
+        extends BaseBlockCipher
+    {
+        public ECB()
+        {
+            super(new GOST28147Engine());
+        }
+    }
+
+    public static class CBC
+       extends BaseBlockCipher
+    {
+        public CBC()
+        {
+            super(new CBCBlockCipher(new GOST28147Engine()), 64);
+        }
+    }
+
+    public static class GCFB
+       extends BaseBlockCipher
+    {
+        public GCFB()
+        {
+            super(new BufferedBlockCipher(new GCFBBlockCipher(new GOST28147Engine())), 64);
+        }
+    }
+
+    /**
+     * GOST28147
+     */
+    public static class Mac
+        extends BaseMac
+    {
+        public Mac()
+        {
+            super(new GOST28147Mac());
+        }
+    }
+
+    public static class KeyGen
+        extends BaseKeyGenerator
+    {
+        public KeyGen()
+        {
+            this(256);
+        }
+
+        public KeyGen(int keySize)
+        {
+            super("GOST28147", keySize, new CipherKeyGenerator());
+        }
+    }
+
+    public static class AlgParamGen
+        extends BaseAlgorithmParameterGenerator
+    {
+        protected void engineInit(
+            AlgorithmParameterSpec genParamSpec,
+            SecureRandom random)
+            throws InvalidAlgorithmParameterException
+        {
+            throw new InvalidAlgorithmParameterException("No supported AlgorithmParameterSpec for AES parameter generation.");
+        }
+
+        protected AlgorithmParameters engineGenerateParameters()
+        {
+            byte[]  iv = new byte[16];
+
+            if (random == null)
+            {
+                random = new SecureRandom();
+            }
+
+            random.nextBytes(iv);
+
+            AlgorithmParameters params;
+
+            try
+            {
+                params = AlgorithmParameters.getInstance("GOST28147", BouncyCastleProvider.PROVIDER_NAME);
+                params.init(new IvParameterSpec(iv));
+            }
+            catch (Exception e)
+            {
+                throw new RuntimeException(e.getMessage());
+            }
+
+            return params;
+        }
+    }
+
+    public static class AlgParams
+        extends IvAlgorithmParameters
+    {
+        protected String engineToString()
+        {
+            return "GOST IV";
+        }
+    }
+
+    public static class Mappings
+        extends AlgorithmProvider
+    {
+        private static final String PREFIX = GOST28147.class.getName();
+
+        public Mappings()
+        {
+        }
+
+        public void configure(ConfigurableProvider provider)
+        {
+            provider.addAlgorithm("Cipher.GOST28147", PREFIX + "$ECB");
+            provider.addAlgorithm("Alg.Alias.Cipher.GOST", "GOST28147");
+            provider.addAlgorithm("Alg.Alias.Cipher.GOST-28147", "GOST28147");
+            provider.addAlgorithm("Cipher." + CryptoProObjectIdentifiers.gostR28147_gcfb, PREFIX + "$GCFB");
+
+            provider.addAlgorithm("KeyGenerator.GOST28147", PREFIX + "$KeyGen");
+            provider.addAlgorithm("Alg.Alias.KeyGenerator.GOST", "GOST28147");
+            provider.addAlgorithm("Alg.Alias.KeyGenerator.GOST-28147", "GOST28147");
+            provider.addAlgorithm("Alg.Alias.KeyGenerator." + CryptoProObjectIdentifiers.gostR28147_gcfb, "GOST28147");
+
+            provider.addAlgorithm("Mac.GOST28147MAC", PREFIX + "$Mac");
+            provider.addAlgorithm("Alg.Alias.Mac.GOST28147", "GOST28147MAC");
+        }
+    }
+}