diff options
Diffstat (limited to 'libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/symmetric/SEED.java')
-rw-r--r-- | libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/symmetric/SEED.java | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/symmetric/SEED.java b/libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/symmetric/SEED.java new file mode 100644 index 000000000..494f039ee --- /dev/null +++ b/libraries/spongycastle/prov/src/main/java/org/spongycastle/jcajce/provider/symmetric/SEED.java @@ -0,0 +1,183 @@ +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.kisa.KISAObjectIdentifiers; +import org.spongycastle.crypto.BlockCipher; +import org.spongycastle.crypto.CipherKeyGenerator; +import org.spongycastle.crypto.engines.SEEDEngine; +import org.spongycastle.crypto.engines.SEEDWrapEngine; +import org.spongycastle.crypto.generators.Poly1305KeyGenerator; +import org.spongycastle.crypto.macs.GMac; +import org.spongycastle.crypto.modes.CBCBlockCipher; +import org.spongycastle.crypto.modes.GCMBlockCipher; +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.BaseWrapCipher; +import org.spongycastle.jcajce.provider.symmetric.util.BlockCipherProvider; +import org.spongycastle.jcajce.provider.symmetric.util.IvAlgorithmParameters; +import org.spongycastle.jce.provider.BouncyCastleProvider; + +public final class SEED +{ + private SEED() + { + } + + public static class ECB + extends BaseBlockCipher + { + public ECB() + { + super(new BlockCipherProvider() + { + public BlockCipher get() + { + return new SEEDEngine(); + } + }); + } + } + + public static class CBC + extends BaseBlockCipher + { + public CBC() + { + super(new CBCBlockCipher(new SEEDEngine()), 128); + } + } + + public static class Wrap + extends BaseWrapCipher + { + public Wrap() + { + super(new SEEDWrapEngine()); + } + } + + public static class KeyGen + extends BaseKeyGenerator + { + public KeyGen() + { + super("SEED", 128, new CipherKeyGenerator()); + } + } + + public static class GMAC + extends BaseMac + { + public GMAC() + { + super(new GMac(new GCMBlockCipher(new SEEDEngine()))); + } + } + + public static class Poly1305 + extends BaseMac + { + public Poly1305() + { + super(new org.spongycastle.crypto.macs.Poly1305(new SEEDEngine())); + } + } + + public static class Poly1305KeyGen + extends BaseKeyGenerator + { + public Poly1305KeyGen() + { + super("Poly1305-SEED", 256, new Poly1305KeyGenerator()); + } + } + + public static class AlgParamGen + extends BaseAlgorithmParameterGenerator + { + protected void engineInit( + AlgorithmParameterSpec genParamSpec, + SecureRandom random) + throws InvalidAlgorithmParameterException + { + throw new InvalidAlgorithmParameterException("No supported AlgorithmParameterSpec for SEED 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("SEED", 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 "SEED IV"; + } + } + + public static class Mappings + extends SymmetricAlgorithmProvider + { + private static final String PREFIX = SEED.class.getName(); + + public Mappings() + { + } + + public void configure(ConfigurableProvider provider) + { + + provider.addAlgorithm("AlgorithmParameters.SEED", PREFIX + "$AlgParams"); + provider.addAlgorithm("Alg.Alias.AlgorithmParameters." + KISAObjectIdentifiers.id_seedCBC, "SEED"); + + provider.addAlgorithm("AlgorithmParameterGenerator.SEED", PREFIX + "$AlgParamGen"); + provider.addAlgorithm("Alg.Alias.AlgorithmParameterGenerator." + KISAObjectIdentifiers.id_seedCBC, "SEED"); + + provider.addAlgorithm("Cipher.SEED", PREFIX + "$ECB"); + provider.addAlgorithm("Cipher." + KISAObjectIdentifiers.id_seedCBC, PREFIX + "$CBC"); + + provider.addAlgorithm("Cipher.SEEDWRAP", PREFIX + "$Wrap"); + provider.addAlgorithm("Alg.Alias.Cipher." + KISAObjectIdentifiers.id_npki_app_cmsSeed_wrap, "SEEDWRAP"); + + provider.addAlgorithm("KeyGenerator.SEED", PREFIX + "$KeyGen"); + provider.addAlgorithm("KeyGenerator." + KISAObjectIdentifiers.id_seedCBC, PREFIX + "$KeyGen"); + provider.addAlgorithm("KeyGenerator." + KISAObjectIdentifiers.id_npki_app_cmsSeed_wrap, PREFIX + "$KeyGen"); + + addGMacAlgorithm(provider, "SEED", PREFIX + "$GMAC", PREFIX + "$KeyGen"); + addPoly1305Algorithm(provider, "SEED", PREFIX + "$Poly1305", PREFIX + "$Poly1305KeyGen"); + } + } +} |