Examples of java.security.spec.InvalidKeySpecException

java.security.spec.InvalidKeySpecException
This is the exception for invalid key specifications. @author Jan Luehe @version 1.17, 11/17/05 @see KeySpec @since 1.2

                    return JDKKeyFactory.createPrivateKeyFromDERStream(
                                new ByteArrayInputStream(((PKCS8EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }


            throw new InvalidKeySpecException("Unknown KeySpec type.");
        }

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                    return JDKKeyFactory.createPublicKeyFromDERStream(
                                new ByteArrayInputStream(((X509EncodedKeySpec)keySpec).getEncoded()));
                }
                catch (Exception e)
                {
                    throw new InvalidKeySpecException(e.toString());
                }
            }


            throw new InvalidKeySpecException("Unknown KeySpec type.");
        }

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            {
                return generatePrivate(PrivateKeyInfo.getInstance(ASN1Primitive.fromByteArray(encKey)));
            }
            catch (Exception e)
            {
                throw new InvalidKeySpecException(e.toString());
            }
        }


        throw new InvalidKeySpecException("Unsupported key specification: "
            + keySpec.getClass() + ".");
    }

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            {
                return generatePublic(SubjectPublicKeyInfo.getInstance(encKey));
            }
            catch (Exception e)
            {
                throw new InvalidKeySpecException(e.toString());
            }
        }


        throw new InvalidKeySpecException("Unknown key specification: " + keySpec + ".");
    }

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                    .getCoeffScalar());
            }
        }
        else
        {
            throw new InvalidKeySpecException("Unsupported key type: "
                + key.getClass() + ".");
        }


        throw new InvalidKeySpecException("Unknown key specification: "
            + keySpec + ".");
    }

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        try {
            subjectPublicKeyInfo = (SubjectPublicKeyInfo) SubjectPublicKeyInfo.ASN1
                    .decode(encoding);
        } catch (IOException e) {
            throw new InvalidKeySpecException(Messages.getString(
                    "security.19A", e)); //$NON-NLS-1$
        }


        try {
            y = new BigInteger((byte[]) ASN1Integer.getInstance().decode(
                    subjectPublicKeyInfo.getSubjectPublicKey()));
        } catch (IOException e) {
            throw new InvalidKeySpecException(Messages.getString(
                    "security.19B", e)); //$NON-NLS-1$
        }


        ai = subjectPublicKeyInfo.getAlgorithmIdentifier();


        try {
            threeInts = (ThreeIntegerSequence) ThreeIntegerSequence.ASN1
                    .decode(ai.getParameters());
        } catch (IOException e) {
            throw new InvalidKeySpecException(Messages.getString(
                    "security.19B", e)); //$NON-NLS-1$
        }
        params = (DSAParams) (new DSAParameterSpec(new BigInteger(threeInts.p),
                new BigInteger(threeInts.q), new BigInteger(threeInts.g)));

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        try {
            privateKeyInfo = (PrivateKeyInfo) PrivateKeyInfo.ASN1
                    .decode(encoding);
        } catch (IOException e) {
            throw new InvalidKeySpecException(Messages.getString(
                    "security.19A", e)); //$NON-NLS-1$
        }


        try {
            x = new BigInteger((byte[]) ASN1Integer.getInstance().decode(
                    privateKeyInfo.getPrivateKey()));
        } catch (IOException e) {
            throw new InvalidKeySpecException(Messages.getString(
                    "security.19B", e)); //$NON-NLS-1$
        }


        ai = privateKeyInfo.getAlgorithmIdentifier();
        try {
            threeInts = (ThreeIntegerSequence) ThreeIntegerSequence.ASN1
                    .decode(ai.getParameters());
        } catch (IOException e) {
            throw new InvalidKeySpecException(Messages.getString(
                    "security.19B", e)); //$NON-NLS-1$
        }
        params = new DSAParameterSpec(new BigInteger(threeInts.p),
                new BigInteger(threeInts.q), new BigInteger(threeInts.g));

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            if (keySpec instanceof PKCS8EncodedKeySpec) {


                return new DSAPrivateKeyImpl((PKCS8EncodedKeySpec) keySpec);
            }
        }
        throw new InvalidKeySpecException(Messages.getString("security.19C")); //$NON-NLS-1$
    }

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            if (keySpec instanceof X509EncodedKeySpec) {


                return new DSAPublicKeyImpl((X509EncodedKeySpec) keySpec);
            }
        }
        throw new InvalidKeySpecException(Messages.getString("security.19D")); //$NON-NLS-1$
    }

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                if (keySpec.equals(PKCS8EncodedKeySpec.class)) {
                    return (T) (new PKCS8EncodedKeySpec(key.getEncoded()));
                }


                throw new InvalidKeySpecException(Messages
                        .getString("security.19C")); //$NON-NLS-1$
            }


            if (key instanceof DSAPublicKey) {
                DSAPublicKey publicKey = (DSAPublicKey) key;


                if (keySpec.equals(DSAPublicKeySpec.class)) {


                    y = publicKey.getY();


                    DSAParams params = publicKey.getParams();


                    p = params.getP();
                    q = params.getQ();
                    g = params.getG();


                    return (T) (new DSAPublicKeySpec(y, p, q, g));
                }


                if (keySpec.equals(X509EncodedKeySpec.class)) {
                    return (T) (new X509EncodedKeySpec(key.getEncoded()));
                }


                throw new InvalidKeySpecException(Messages
                        .getString("security.19D")); //$NON-NLS-1$
            }
        }
        throw new InvalidKeySpecException(Messages.getString("security.19F")); //$NON-NLS-1$
    }

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