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      1 /* GENERATED SOURCE. DO NOT MODIFY. */
      2 package com.android.org.bouncycastle.jcajce.provider.asymmetric.x509;
      3 
      4 import java.security.InvalidKeyException;
      5 import java.security.Key;
      6 import java.security.KeyFactorySpi;
      7 import java.security.PrivateKey;
      8 import java.security.PublicKey;
      9 import java.security.spec.InvalidKeySpecException;
     10 import java.security.spec.KeySpec;
     11 import java.security.spec.PKCS8EncodedKeySpec;
     12 import java.security.spec.X509EncodedKeySpec;
     13 
     14 import com.android.org.bouncycastle.asn1.pkcs.PrivateKeyInfo;
     15 import com.android.org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
     16 import com.android.org.bouncycastle.jce.provider.BouncyCastleProvider;
     17 
     18 /**
     19  * @hide This class is not part of the Android public SDK API
     20  */
     21 public class KeyFactory
     22     extends KeyFactorySpi
     23 {
     24 
     25     protected PrivateKey engineGeneratePrivate(
     26         KeySpec keySpec)
     27         throws InvalidKeySpecException
     28     {
     29         if (keySpec instanceof PKCS8EncodedKeySpec)
     30         {
     31             try
     32             {
     33                 PrivateKeyInfo info = PrivateKeyInfo.getInstance(((PKCS8EncodedKeySpec)keySpec).getEncoded());
     34                 PrivateKey     key = BouncyCastleProvider.getPrivateKey(info);
     35 
     36                 if (key != null)
     37                 {
     38                     return key;
     39                 }
     40 
     41                 throw new InvalidKeySpecException("no factory found for OID: " + info.getPrivateKeyAlgorithm().getAlgorithm());
     42             }
     43             catch (Exception e)
     44             {
     45                 throw new InvalidKeySpecException(e.toString());
     46             }
     47         }
     48 
     49         throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
     50     }
     51 
     52     protected PublicKey engineGeneratePublic(
     53         KeySpec keySpec)
     54         throws InvalidKeySpecException
     55     {
     56         if (keySpec instanceof X509EncodedKeySpec)
     57         {
     58             try
     59             {
     60                 SubjectPublicKeyInfo info = SubjectPublicKeyInfo.getInstance(((X509EncodedKeySpec)keySpec).getEncoded());
     61                 PublicKey            key = BouncyCastleProvider.getPublicKey(info);
     62 
     63                 if (key != null)
     64                 {
     65                     return key;
     66                 }
     67 
     68                 throw new InvalidKeySpecException("no factory found for OID: " + info.getAlgorithm().getAlgorithm());
     69             }
     70             catch (Exception e)
     71             {
     72                 throw new InvalidKeySpecException(e.toString());
     73             }
     74         }
     75 
     76         throw new InvalidKeySpecException("Unknown KeySpec type: " + keySpec.getClass().getName());
     77     }
     78 
     79     protected KeySpec engineGetKeySpec(Key key, Class keySpec)
     80         throws InvalidKeySpecException
     81     {
     82         if (keySpec.isAssignableFrom(PKCS8EncodedKeySpec.class) && key.getFormat().equals("PKCS#8"))
     83         {
     84             return new PKCS8EncodedKeySpec(key.getEncoded());
     85         }
     86         else if (keySpec.isAssignableFrom(X509EncodedKeySpec.class) && key.getFormat().equals("X.509"))
     87         {
     88             return new X509EncodedKeySpec(key.getEncoded());
     89         }
     90 
     91         throw new InvalidKeySpecException("not implemented yet " + key + " " + keySpec);
     92     }
     93 
     94     protected Key engineTranslateKey(Key key)
     95         throws InvalidKeyException
     96     {
     97         throw new InvalidKeyException("not implemented yet " + key);
     98     }
     99 }