diff options
Diffstat (limited to 'bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyAgreementSpi.java')
| -rw-r--r-- | bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyAgreementSpi.java | 250 |
1 files changed, 135 insertions, 115 deletions
diff --git a/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyAgreementSpi.java b/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyAgreementSpi.java index 4ea57fe..3dbe004 100644 --- a/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyAgreementSpi.java +++ b/bcprov/src/main/java/org/bouncycastle/jcajce/provider/asymmetric/ec/KeyAgreementSpi.java @@ -24,22 +24,28 @@ import org.bouncycastle.crypto.BasicAgreement; import org.bouncycastle.crypto.CipherParameters; import org.bouncycastle.crypto.DerivationFunction; import org.bouncycastle.crypto.agreement.ECDHBasicAgreement; -import org.bouncycastle.crypto.agreement.ECDHCBasicAgreement; -import org.bouncycastle.crypto.agreement.ECMQVBasicAgreement; -import org.bouncycastle.crypto.agreement.kdf.DHKDFParameters; -import org.bouncycastle.crypto.agreement.kdf.ECDHKEKGenerator; +// BEGIN android-removed +// import org.bouncycastle.crypto.agreement.ECDHCBasicAgreement; +// import org.bouncycastle.crypto.agreement.ECMQVBasicAgreement; +// import org.bouncycastle.crypto.agreement.kdf.DHKDFParameters; +// import org.bouncycastle.crypto.agreement.kdf.ECDHKEKGenerator; +// END android-removed import org.bouncycastle.crypto.digests.SHA1Digest; import org.bouncycastle.crypto.params.DESParameters; import org.bouncycastle.crypto.params.ECDomainParameters; import org.bouncycastle.crypto.params.ECPrivateKeyParameters; import org.bouncycastle.crypto.params.ECPublicKeyParameters; -import org.bouncycastle.crypto.params.MQVPrivateParameters; -import org.bouncycastle.crypto.params.MQVPublicParameters; +// BEGIN android-removed +// import org.bouncycastle.crypto.params.MQVPrivateParameters; +// import org.bouncycastle.crypto.params.MQVPublicParameters; +// END android-removed import org.bouncycastle.jcajce.provider.asymmetric.util.ECUtil; import org.bouncycastle.jce.interfaces.ECPrivateKey; import org.bouncycastle.jce.interfaces.ECPublicKey; -import org.bouncycastle.jce.interfaces.MQVPrivateKey; -import org.bouncycastle.jce.interfaces.MQVPublicKey; +// BEGIN android-removed +// import org.bouncycastle.jce.interfaces.MQVPrivateKey; +// import org.bouncycastle.jce.interfaces.MQVPublicKey; +// END android-removed import org.bouncycastle.util.Integers; import org.bouncycastle.util.Strings; @@ -89,7 +95,9 @@ public class KeyAgreementSpi private BigInteger result; private ECDomainParameters parameters; private BasicAgreement agreement; - private DerivationFunction kdf; + // BEGIN android-removed + // private DerivationFunction kdf; + // END android-removed private byte[] bigIntToBytes( BigInteger r) @@ -104,7 +112,9 @@ public class KeyAgreementSpi { this.kaAlgorithm = kaAlgorithm; this.agreement = agreement; - this.kdf = kdf; + // BEGIN android-removed + // this.kdf = kdf; + // END android-removed } protected Key engineDoPhase( @@ -123,25 +133,27 @@ public class KeyAgreementSpi } CipherParameters pubKey; - if (agreement instanceof ECMQVBasicAgreement) - { - if (!(key instanceof MQVPublicKey)) - { - throw new InvalidKeyException(kaAlgorithm + " key agreement requires " - + getSimpleName(MQVPublicKey.class) + " for doPhase"); - } - - MQVPublicKey mqvPubKey = (MQVPublicKey)key; - ECPublicKeyParameters staticKey = (ECPublicKeyParameters) - ECUtil.generatePublicKeyParameter(mqvPubKey.getStaticKey()); - ECPublicKeyParameters ephemKey = (ECPublicKeyParameters) - ECUtil.generatePublicKeyParameter(mqvPubKey.getEphemeralKey()); - - pubKey = new MQVPublicParameters(staticKey, ephemKey); - - // TODO Validate that all the keys are using the same parameters? - } - else + // BEGIN android-removed + // if (agreement instanceof ECMQVBasicAgreement) + // { + // if (!(key instanceof MQVPublicKey)) + // { + // throw new InvalidKeyException(kaAlgorithm + " key agreement requires " + // + getSimpleName(MQVPublicKey.class) + " for doPhase"); + // } + // + // MQVPublicKey mqvPubKey = (MQVPublicKey)key; + // ECPublicKeyParameters staticKey = (ECPublicKeyParameters) + // ECUtil.generatePublicKeyParameter(mqvPubKey.getStaticKey()); + // ECPublicKeyParameters ephemKey = (ECPublicKeyParameters) + // ECUtil.generatePublicKeyParameter(mqvPubKey.getEphemeralKey()); + // + // pubKey = new MQVPublicParameters(staticKey, ephemKey); + // + // // TODO Validate that all the keys are using the same parameters? + // } + // else + // END android-removed { if (!(key instanceof PublicKey)) { @@ -162,11 +174,13 @@ public class KeyAgreementSpi protected byte[] engineGenerateSecret() throws IllegalStateException { - if (kdf != null) - { - throw new UnsupportedOperationException( - "KDF can only be used when algorithm is known"); - } + // BEGIN android-removed + // if (kdf != null) + // { + // throw new UnsupportedOperationException( + // "KDF can only be used when algorithm is known"); + // } + // END android-removed return bigIntToBytes(result); } @@ -201,23 +215,25 @@ public class KeyAgreementSpi oidAlgorithm = ((ASN1ObjectIdentifier)oids.get(algKey)).getId(); } - if (kdf != null) - { - if (!algorithms.containsKey(oidAlgorithm)) - { - throw new NoSuchAlgorithmException("unknown algorithm encountered: " + algorithm); - } - - int keySize = ((Integer)algorithms.get(oidAlgorithm)).intValue(); - - DHKDFParameters params = new DHKDFParameters(new ASN1ObjectIdentifier(oidAlgorithm), keySize, secret); - - byte[] keyBytes = new byte[keySize / 8]; - kdf.init(params); - kdf.generateBytes(keyBytes, 0, keyBytes.length); - secret = keyBytes; - } - else + // BEGIN android-removed + // if (kdf != null) + // { + // if (!algorithms.containsKey(oidAlgorithm)) + // { + // throw new NoSuchAlgorithmException("unknown algorithm encountered: " + algorithm); + // } + // + // int keySize = ((Integer)algorithms.get(oidAlgorithm)).intValue(); + // + // DHKDFParameters params = new DHKDFParameters(new ASN1ObjectIdentifier(oidAlgorithm), keySize, secret); + // + // byte[] keyBytes = new byte[keySize / 8]; + // kdf.init(params); + // kdf.generateBytes(keyBytes, 0, keyBytes.length); + // secret = keyBytes; + // } + // else + // END android-removed { if (algorithms.containsKey(oidAlgorithm)) { @@ -264,35 +280,37 @@ public class KeyAgreementSpi private void initFromKey(Key key) throws InvalidKeyException { - if (agreement instanceof ECMQVBasicAgreement) - { - if (!(key instanceof MQVPrivateKey)) - { - throw new InvalidKeyException(kaAlgorithm + " key agreement requires " - + getSimpleName(MQVPrivateKey.class) + " for initialisation"); - } - - MQVPrivateKey mqvPrivKey = (MQVPrivateKey)key; - ECPrivateKeyParameters staticPrivKey = (ECPrivateKeyParameters) - ECUtil.generatePrivateKeyParameter(mqvPrivKey.getStaticPrivateKey()); - ECPrivateKeyParameters ephemPrivKey = (ECPrivateKeyParameters) - ECUtil.generatePrivateKeyParameter(mqvPrivKey.getEphemeralPrivateKey()); - - ECPublicKeyParameters ephemPubKey = null; - if (mqvPrivKey.getEphemeralPublicKey() != null) - { - ephemPubKey = (ECPublicKeyParameters) - ECUtil.generatePublicKeyParameter(mqvPrivKey.getEphemeralPublicKey()); - } - - MQVPrivateParameters localParams = new MQVPrivateParameters(staticPrivKey, ephemPrivKey, ephemPubKey); - this.parameters = staticPrivKey.getParameters(); - - // TODO Validate that all the keys are using the same parameters? - - agreement.init(localParams); - } - else + // BEGIN android-removed + // if (agreement instanceof ECMQVBasicAgreement) + // { + // if (!(key instanceof MQVPrivateKey)) + // { + // throw new InvalidKeyException(kaAlgorithm + " key agreement requires " + // + getSimpleName(MQVPrivateKey.class) + " for initialisation"); + // } + // + // MQVPrivateKey mqvPrivKey = (MQVPrivateKey)key; + // ECPrivateKeyParameters staticPrivKey = (ECPrivateKeyParameters) + // ECUtil.generatePrivateKeyParameter(mqvPrivKey.getStaticPrivateKey()); + // ECPrivateKeyParameters ephemPrivKey = (ECPrivateKeyParameters) + // ECUtil.generatePrivateKeyParameter(mqvPrivKey.getEphemeralPrivateKey()); + // + // ECPublicKeyParameters ephemPubKey = null; + // if (mqvPrivKey.getEphemeralPublicKey() != null) + // { + // ephemPubKey = (ECPublicKeyParameters) + // ECUtil.generatePublicKeyParameter(mqvPrivKey.getEphemeralPublicKey()); + // } + // + // MQVPrivateParameters localParams = new MQVPrivateParameters(staticPrivKey, ephemPrivKey, ephemPubKey); + // this.parameters = staticPrivKey.getParameters(); + // + // // TODO Validate that all the keys are using the same parameters? + // + // agreement.init(localParams); + // } + // else + // END android-removed { if (!(key instanceof PrivateKey)) { @@ -323,39 +341,41 @@ public class KeyAgreementSpi } } - public static class DHC - extends KeyAgreementSpi - { - public DHC() - { - super("ECDHC", new ECDHCBasicAgreement(), null); - } - } - - public static class MQV - extends KeyAgreementSpi - { - public MQV() - { - super("ECMQV", new ECMQVBasicAgreement(), null); - } - } - - public static class DHwithSHA1KDF - extends KeyAgreementSpi - { - public DHwithSHA1KDF() - { - super("ECDHwithSHA1KDF", new ECDHBasicAgreement(), new ECDHKEKGenerator(new SHA1Digest())); - } - } - - public static class MQVwithSHA1KDF - extends KeyAgreementSpi - { - public MQVwithSHA1KDF() - { - super("ECMQVwithSHA1KDF", new ECMQVBasicAgreement(), new ECDHKEKGenerator(new SHA1Digest())); - } - } + // BEGIN android-removed + // public static class DHC + // extends KeyAgreementSpi + // { + // public DHC() + // { + // super("ECDHC", new ECDHCBasicAgreement(), null); + // } + // } + // + // public static class MQV + // extends KeyAgreementSpi + // { + // public MQV() + // { + // super("ECMQV", new ECMQVBasicAgreement(), null); + // } + // } + // + // public static class DHwithSHA1KDF + // extends KeyAgreementSpi + // { + // public DHwithSHA1KDF() + // { + // super("ECDHwithSHA1KDF", new ECDHBasicAgreement(), new ECDHKEKGenerator(new SHA1Digest())); + // } + // } + // + // public static class MQVwithSHA1KDF + // extends KeyAgreementSpi + // { + // public MQVwithSHA1KDF() + // { + // super("ECMQVwithSHA1KDF", new ECMQVBasicAgreement(), new ECDHKEKGenerator(new SHA1Digest())); + // } + // } + // END android-removed } |