diff options
Diffstat (limited to 'pki/base/util/src/netscape/security/provider/DSAKeyFactory.java')
| -rwxr-xr-x | pki/base/util/src/netscape/security/provider/DSAKeyFactory.java | 339 |
1 files changed, 166 insertions, 173 deletions
diff --git a/pki/base/util/src/netscape/security/provider/DSAKeyFactory.java b/pki/base/util/src/netscape/security/provider/DSAKeyFactory.java index f2292e34..91b43f99 100755 --- a/pki/base/util/src/netscape/security/provider/DSAKeyFactory.java +++ b/pki/base/util/src/netscape/security/provider/DSAKeyFactory.java @@ -32,215 +32,208 @@ import java.security.spec.X509EncodedKeySpec; /** * This class implements the DSA key factory of the Sun provider. - * + * * @author Jan Luehe - * + * * @version 1.8, 97/12/10 - * + * * @since JDK1.2 */ public class DSAKeyFactory extends KeyFactorySpi { /** - * Generates a public key object from the provided key specification - * (key material). - * + * Generates a public key object from the provided key specification (key + * material). + * * @param keySpec the specification (key material) of the public key - * + * * @return the public key - * - * @exception InvalidKeySpecException if the given key specification - * is inappropriate for this key factory to produce a public key. + * + * @exception InvalidKeySpecException if the given key specification is + * inappropriate for this key factory to produce a public + * key. */ protected PublicKey engineGeneratePublic(KeySpec keySpec) - throws InvalidKeySpecException { - try { - if (keySpec instanceof DSAPublicKeySpec) { - DSAPublicKeySpec dsaPubKeySpec = (DSAPublicKeySpec)keySpec; - return new DSAPublicKey(dsaPubKeySpec.getY(), - dsaPubKeySpec.getP(), - dsaPubKeySpec.getQ(), - dsaPubKeySpec.getG()); - - } else if (keySpec instanceof X509EncodedKeySpec) { - return new DSAPublicKey - (((X509EncodedKeySpec)keySpec).getEncoded()); - - } else { - throw new InvalidKeySpecException - ("Inappropriate key specification"); - } - } catch (InvalidKeyException e) { - throw new InvalidKeySpecException - ("Inappropriate key specification: " + e.getMessage()); - } + throws InvalidKeySpecException { + try { + if (keySpec instanceof DSAPublicKeySpec) { + DSAPublicKeySpec dsaPubKeySpec = (DSAPublicKeySpec) keySpec; + return new DSAPublicKey(dsaPubKeySpec.getY(), + dsaPubKeySpec.getP(), dsaPubKeySpec.getQ(), + dsaPubKeySpec.getG()); + + } else if (keySpec instanceof X509EncodedKeySpec) { + return new DSAPublicKey( + ((X509EncodedKeySpec) keySpec).getEncoded()); + + } else { + throw new InvalidKeySpecException( + "Inappropriate key specification"); + } + } catch (InvalidKeyException e) { + throw new InvalidKeySpecException( + "Inappropriate key specification: " + e.getMessage()); + } } /** - * Generates a private key object from the provided key specification - * (key material). - * + * Generates a private key object from the provided key specification (key + * material). + * * @param keySpec the specification (key material) of the private key - * + * * @return the private key - * - * @exception InvalidKeySpecException if the given key specification - * is inappropriate for this key factory to produce a private key. + * + * @exception InvalidKeySpecException if the given key specification is + * inappropriate for this key factory to produce a private + * key. */ protected PrivateKey engineGeneratePrivate(KeySpec keySpec) - throws InvalidKeySpecException { - try { - if (keySpec instanceof DSAPrivateKeySpec) { - DSAPrivateKeySpec dsaPrivKeySpec = (DSAPrivateKeySpec)keySpec; - return new DSAPrivateKey(dsaPrivKeySpec.getX(), - dsaPrivKeySpec.getP(), - dsaPrivKeySpec.getQ(), - dsaPrivKeySpec.getG()); - - } else if (keySpec instanceof PKCS8EncodedKeySpec) { - return new DSAPrivateKey - (((PKCS8EncodedKeySpec)keySpec).getEncoded()); - - } else { - throw new InvalidKeySpecException - ("Inappropriate key specification"); - } - } catch (InvalidKeyException e) { - throw new InvalidKeySpecException - ("Inappropriate key specification: " + e.getMessage()); - } + throws InvalidKeySpecException { + try { + if (keySpec instanceof DSAPrivateKeySpec) { + DSAPrivateKeySpec dsaPrivKeySpec = (DSAPrivateKeySpec) keySpec; + return new DSAPrivateKey(dsaPrivKeySpec.getX(), + dsaPrivKeySpec.getP(), dsaPrivKeySpec.getQ(), + dsaPrivKeySpec.getG()); + + } else if (keySpec instanceof PKCS8EncodedKeySpec) { + return new DSAPrivateKey( + ((PKCS8EncodedKeySpec) keySpec).getEncoded()); + + } else { + throw new InvalidKeySpecException( + "Inappropriate key specification"); + } + } catch (InvalidKeyException e) { + throw new InvalidKeySpecException( + "Inappropriate key specification: " + e.getMessage()); + } } /** - * Returns a specification (key material) of the given key object - * in the requested format. - * - * @param key the key - * + * Returns a specification (key material) of the given key object in the + * requested format. + * + * @param key the key + * * @param keySpec the requested format in which the key material shall be - * returned - * - * @return the underlying key specification (key material) in the - * requested format - * + * returned + * + * @return the underlying key specification (key material) in the requested + * format + * * @exception InvalidKeySpecException if the requested key specification is - * inappropriate for the given key, or the given key cannot be processed - * (e.g., the given key has an unrecognized algorithm or format). + * inappropriate for the given key, or the given key cannot + * be processed (e.g., the given key has an unrecognized + * algorithm or format). */ protected KeySpec engineGetKeySpec(Key key, Class keySpec) - throws InvalidKeySpecException { - - DSAParams params; - - try { - - if (key instanceof java.security.interfaces.DSAPublicKey) { - - // Determine valid key specs - Class dsaPubKeySpec = Class.forName - ("java.security.spec.DSAPublicKeySpec"); - Class x509KeySpec = Class.forName - ("java.security.spec.X509EncodedKeySpec"); - - if (dsaPubKeySpec.isAssignableFrom(keySpec)) { - java.security.interfaces.DSAPublicKey dsaPubKey - = (java.security.interfaces.DSAPublicKey)key; - params = dsaPubKey.getParams(); - return new DSAPublicKeySpec(dsaPubKey.getY(), - params.getP(), - params.getQ(), - params.getG()); - - } else if (x509KeySpec.isAssignableFrom(keySpec)) { - return new X509EncodedKeySpec(key.getEncoded()); - - } else { - throw new InvalidKeySpecException - ("Inappropriate key specification"); - } - - } else if (key instanceof java.security.interfaces.DSAPrivateKey) { - - // Determine valid key specs - Class dsaPrivKeySpec = Class.forName - ("java.security.spec.DSAPrivateKeySpec"); - Class pkcs8KeySpec = Class.forName - ("java.security.spec.PKCS8EncodedKeySpec"); - - if (dsaPrivKeySpec.isAssignableFrom(keySpec)) { - java.security.interfaces.DSAPrivateKey dsaPrivKey - = (java.security.interfaces.DSAPrivateKey)key; - params = dsaPrivKey.getParams(); - return new DSAPrivateKeySpec(dsaPrivKey.getX(), - params.getP(), - params.getQ(), - params.getG()); - - } else if (pkcs8KeySpec.isAssignableFrom(keySpec)) { - return new PKCS8EncodedKeySpec(key.getEncoded()); - - } else { - throw new InvalidKeySpecException - ("Inappropriate key specification"); - } - - } else { - throw new InvalidKeySpecException("Inappropriate key type"); - } - - } catch (ClassNotFoundException e) { - throw new InvalidKeySpecException - ("Unsupported key specification: " + e.getMessage()); - } + throws InvalidKeySpecException { + + DSAParams params; + + try { + + if (key instanceof java.security.interfaces.DSAPublicKey) { + + // Determine valid key specs + Class dsaPubKeySpec = Class + .forName("java.security.spec.DSAPublicKeySpec"); + Class x509KeySpec = Class + .forName("java.security.spec.X509EncodedKeySpec"); + + if (dsaPubKeySpec.isAssignableFrom(keySpec)) { + java.security.interfaces.DSAPublicKey dsaPubKey = (java.security.interfaces.DSAPublicKey) key; + params = dsaPubKey.getParams(); + return new DSAPublicKeySpec(dsaPubKey.getY(), + params.getP(), params.getQ(), params.getG()); + + } else if (x509KeySpec.isAssignableFrom(keySpec)) { + return new X509EncodedKeySpec(key.getEncoded()); + + } else { + throw new InvalidKeySpecException( + "Inappropriate key specification"); + } + + } else if (key instanceof java.security.interfaces.DSAPrivateKey) { + + // Determine valid key specs + Class dsaPrivKeySpec = Class + .forName("java.security.spec.DSAPrivateKeySpec"); + Class pkcs8KeySpec = Class + .forName("java.security.spec.PKCS8EncodedKeySpec"); + + if (dsaPrivKeySpec.isAssignableFrom(keySpec)) { + java.security.interfaces.DSAPrivateKey dsaPrivKey = (java.security.interfaces.DSAPrivateKey) key; + params = dsaPrivKey.getParams(); + return new DSAPrivateKeySpec(dsaPrivKey.getX(), + params.getP(), params.getQ(), params.getG()); + + } else if (pkcs8KeySpec.isAssignableFrom(keySpec)) { + return new PKCS8EncodedKeySpec(key.getEncoded()); + + } else { + throw new InvalidKeySpecException( + "Inappropriate key specification"); + } + + } else { + throw new InvalidKeySpecException("Inappropriate key type"); + } + + } catch (ClassNotFoundException e) { + throw new InvalidKeySpecException("Unsupported key specification: " + + e.getMessage()); + } } /** * Translates a key object, whose provider may be unknown or potentially * untrusted, into a corresponding key object of this key factory. - * + * * @param key the key whose provider is unknown or untrusted - * + * * @return the translated key - * + * * @exception InvalidKeyException if the given key cannot be processed by - * this key factory. + * this key factory. */ protected Key engineTranslateKey(Key key) throws InvalidKeyException { - try { - - if (key instanceof java.security.interfaces.DSAPublicKey) { - // Check if key originates from this factory - if (key instanceof netscape.security.provider.DSAPublicKey) { - return key; - } - // Convert key to spec - DSAPublicKeySpec dsaPubKeySpec - = (DSAPublicKeySpec)engineGetKeySpec - (key, DSAPublicKeySpec.class); - // Create key from spec, and return it - return engineGeneratePublic(dsaPubKeySpec); - - } else if (key instanceof java.security.interfaces.DSAPrivateKey) { - // Check if key originates from this factory - if (key instanceof netscape.security.provider.DSAPrivateKey) { - return key; - } - // Convert key to spec - DSAPrivateKeySpec dsaPrivKeySpec - = (DSAPrivateKeySpec)engineGetKeySpec - (key, DSAPrivateKeySpec.class); - // Create key from spec, and return it - return engineGeneratePrivate(dsaPrivKeySpec); - - } else { - throw new InvalidKeyException("Wrong algorithm type"); - } - - } catch (InvalidKeySpecException e) { - throw new InvalidKeyException("Cannot translate key: " - + e.getMessage()); - } + try { + + if (key instanceof java.security.interfaces.DSAPublicKey) { + // Check if key originates from this factory + if (key instanceof netscape.security.provider.DSAPublicKey) { + return key; + } + // Convert key to spec + DSAPublicKeySpec dsaPubKeySpec = (DSAPublicKeySpec) engineGetKeySpec( + key, DSAPublicKeySpec.class); + // Create key from spec, and return it + return engineGeneratePublic(dsaPubKeySpec); + + } else if (key instanceof java.security.interfaces.DSAPrivateKey) { + // Check if key originates from this factory + if (key instanceof netscape.security.provider.DSAPrivateKey) { + return key; + } + // Convert key to spec + DSAPrivateKeySpec dsaPrivKeySpec = (DSAPrivateKeySpec) engineGetKeySpec( + key, DSAPrivateKeySpec.class); + // Create key from spec, and return it + return engineGeneratePrivate(dsaPrivKeySpec); + + } else { + throw new InvalidKeyException("Wrong algorithm type"); + } + + } catch (InvalidKeySpecException e) { + throw new InvalidKeyException("Cannot translate key: " + + e.getMessage()); + } } } |