Examples with GenP10Exception com.itrus.Exception.GenP10Exception used on opensource projects

Example 1 with GenP10Exception

use of com.itrus.Exception.GenP10Exception in project portal by ixinportal.

the class GenUtil method GenP10.

public static String GenP10(String userid, String subject, String alg) throws GenP10Exception {
    if (!"".equalsIgnoreCase(userid)) {
        if (keyMap.containsKey(userid)) {
            throw new GenP10Exception("用户唯一标识【" + userid + "】不能重复");
        }
    } else {
        throw new GenP10Exception("用户唯一标识不能为空");
    }
    KeyPairGenerator kpg = null;
    try {
        kpg = KeyPairGenerator.getInstance(alg);
    } catch (NoSuchAlgorithmException e1) {
        throw new GenP10Exception("输入秘钥对产生算法不正确：" + alg);
    }
    if ("SM2".equalsIgnoreCase(alg)) {
        kpg.initialize(256);
    } else {
        kpg.initialize(2048);
    }
    KeyPair kp = kpg.generateKeyPair();
    keyMap.put(userid, kp);
    byte[] publickey = kp.getPublic().getEncoded();
    final String pubAlg = kp.getPublic().getAlgorithm();
    String sAlg = null;
    try {
        sAlg = AlgorithmId.get(pubAlg).getOID().toString();
    } catch (NoSuchAlgorithmException e1) {
        throw new GenP10Exception("输入秘钥对产生算法不正确：" + sAlg);
    }
    SubjectPublicKeyInfo spki = null;
    if (sAlg.equals("1.2.156.10197.1.301")) {
        spki = SubjectPublicKeyInfo.getInstance(publickey);
    } else {
        spki = new SubjectPublicKeyInfo(ASN1Sequence.getInstance(publickey));
    }
    if ("".equals(subject)) {
        subject = "CN=defaultName";
    }
    X500Name x500 = new X500Name(subject);
    PKCS10CertificationRequestBuilder prb = new PKCS10CertificationRequestBuilder(x500, spki);
    ContentSigner signer = null;
    PrivateKey privateKey = kp.getPrivate();
    final Signature sign;
    try {
        if (privateKey.getAlgorithm().equals("SM2")) {
            sign = Signature.getInstance("SM3withSM2");
        } else {
            sign = Signature.getInstance("SHA1withRSA");
        }
        sign.initSign(privateKey);
    } catch (NoSuchAlgorithmException e) {
        throw new GenP10Exception("输入秘钥对产生算法不正确：SHA1withRSA");
    } catch (InvalidKeyException e) {
        throw new GenP10Exception("无效的私钥信息");
    }
    signer = new ContentSigner() {

        ByteArrayOutputStream originStream = new ByteArrayOutputStream();

        public byte[] getSignature() {
            try {
                sign.update(this.originStream.toByteArray());
                return sign.sign();
            } catch (SignatureException e) {
                throw new RuntimeException(e);
            }
        }

        public OutputStream getOutputStream() {
            return this.originStream;
        }

        public AlgorithmIdentifier getAlgorithmIdentifier() {
            try {
                return new AlgorithmIdentifier(AlgorithmId.get(pubAlg).getOID().toString());
            } catch (NoSuchAlgorithmException e) {
                throw new RuntimeException(e);
            }
        }
    };
    PKCS10CertificationRequestHolder pr = prb.build(signer);
    try {
        return new String(Base64.encode(pr.getEncoded()));
    } catch (IOException e) {
        throw new GenP10Exception("产生CSR错误，请检查输入参数");
    }
}