1 files changed, 0 insertions, 131 deletions
diff --git a/bcprov/src/main/java/org/bouncycastle/crypto/signers/GOST3410Signer.java b/bcprov/src/main/java/org/bouncycastle/crypto/signers/GOST3410Signer.java
deleted file mode 100644
index 135f185..0000000
--- a/bcprov/src/main/java/org/bouncycastle/crypto/signers/GOST3410Signer.java
+++ /dev/null
@@ -1,131 +0,0 @@
-package org.bouncycastle.crypto.signers;
-
-import java.math.BigInteger;
-import java.security.SecureRandom;
-
-import org.bouncycastle.crypto.CipherParameters;
-import org.bouncycastle.crypto.DSA;
-import org.bouncycastle.crypto.params.GOST3410KeyParameters;
-import org.bouncycastle.crypto.params.GOST3410Parameters;
-import org.bouncycastle.crypto.params.GOST3410PrivateKeyParameters;
-import org.bouncycastle.crypto.params.GOST3410PublicKeyParameters;
-import org.bouncycastle.crypto.params.ParametersWithRandom;
-
-/**
- * GOST R 34.10-94 Signature Algorithm
- */
-public class GOST3410Signer
-        implements DSA
-{
-        GOST3410KeyParameters key;
-
-        SecureRandom    random;
-
-        public void init(
-            boolean                 forSigning,
-            CipherParameters        param)
-        {
-            if (forSigning)
-            {
-                if (param instanceof ParametersWithRandom)
-                {
-                    ParametersWithRandom rParam = (ParametersWithRandom)param;
-
-                    this.random = rParam.getRandom();
-                    this.key = (GOST3410PrivateKeyParameters)rParam.getParameters();
-                }
-                else
-                {
-                    this.random = new SecureRandom();
-                    this.key = (GOST3410PrivateKeyParameters)param;
-                }
-            }
-            else
-            {
-                this.key = (GOST3410PublicKeyParameters)param;
-            }
-        }
-
-        /**
-         * generate a signature for the given message using the key we were
-         * initialised with. For conventional GOST3410 the message should be a GOST3411
-         * hash of the message of interest.
-         *
-         * @param message the message that will be verified later.
-         */
-        public BigInteger[] generateSignature(
-            byte[] message)
-        {
-            byte[] mRev = new byte[message.length]; // conversion is little-endian
-            for (int i = 0; i != mRev.length; i++)
-            {
-                mRev[i] = message[mRev.length - 1 - i];
-            }
-            
-            BigInteger      m = new BigInteger(1, mRev);
-            GOST3410Parameters   params = key.getParameters();
-            BigInteger      k;
-
-            do
-            {
-                k = new BigInteger(params.getQ().bitLength(), random);
-            }
-            while (k.compareTo(params.getQ()) >= 0);
-
-            BigInteger  r = params.getA().modPow(k, params.getP()).mod(params.getQ());
-
-            BigInteger  s = k.multiply(m).
-                                add(((GOST3410PrivateKeyParameters)key).getX().multiply(r)).
-                                    mod(params.getQ());
-
-            BigInteger[]  res = new BigInteger[2];
-
-            res[0] = r;
-            res[1] = s;
-
-            return res;
-        }
-
-        /**
-         * return true if the value r and s represent a GOST3410 signature for
-         * the passed in message for standard GOST3410 the message should be a
-         * GOST3411 hash of the real message to be verified.
-         */
-        public boolean verifySignature(
-            byte[]      message,
-            BigInteger  r,
-            BigInteger  s)
-        {
-            byte[] mRev = new byte[message.length]; // conversion is little-endian
-            for (int i = 0; i != mRev.length; i++)
-            {
-                mRev[i] = message[mRev.length - 1 - i];
-            }
-            
-            BigInteger           m = new BigInteger(1, mRev);
-            GOST3410Parameters params = key.getParameters();
-            BigInteger           zero = BigInteger.valueOf(0);
-
-            if (zero.compareTo(r) >= 0 || params.getQ().compareTo(r) <= 0)
-            {
-                return false;
-            }
-
-            if (zero.compareTo(s) >= 0 || params.getQ().compareTo(s) <= 0)
-            {
-                return false;
-            }
-
-            BigInteger  v = m.modPow(params.getQ().subtract(new BigInteger("2")),params.getQ());
-
-            BigInteger  z1 = s.multiply(v).mod(params.getQ());
-            BigInteger  z2 = (params.getQ().subtract(r)).multiply(v).mod(params.getQ());
-            
-            z1 = params.getA().modPow(z1, params.getP());
-            z2 = ((GOST3410PublicKeyParameters)key).getY().modPow(z2, params.getP());
-
-            BigInteger  u = z1.multiply(z2).mod(params.getP()).mod(params.getQ());
-
-            return u.equals(r);
-        }
-}