我試圖從JKS KeyStore讀回ECPrivateKey
(包括證書鏈),如下面的代碼所示。從JKS KeyStore回讀ECPrivateKey
String storeType = "JKS", storePass = "secret", storePath = "c:/keystore.ks";
ECNamedCurveParameterSpec bcParamSpec = ECNamedCurveTable.getParameterSpec("brainpoolp224r1");
ECNamedCurveSpec jceParamSpec = new ECNamedCurveSpec(bcParamSpec.getName(), bcParamSpec.getCurve(), bcParamSpec.getG(), bcParamSpec.getN(), bcParamSpec.getH(), bcParamSpec.getSeed());
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("EC");
keyPairGenerator.initialize(jceParamSpec);
KeyPair keyPair = keyPairGenerator.generateKeyPair();
ECPublicKey publicKey = (ECPublicKey)keyPair.getPublic();
ECPrivateKey privateKey = (ECPrivateKey)keyPair.getPrivate();
Certificate trustCert = createX509Certificate("CN=CA", "CN=CA", publicKey, privateKey, "SHA224withECDSA");
Certificate[] chain = { createX509Certificate("CN=Client", "CN=CA", publicKey, privateKey, "SHA224withECDSA"), trustCert };
KeyStore keyStore = KeyStore.getInstance(storeType);
keyStore.load(null, storePass.toCharArray());
keyStore.setKeyEntry("eckey", privateKey, storePass.toCharArray(), chain);
FileOutputStream outputStream = new FileOutputStream(storePath);
keyStore.store(outputStream, storePass.toCharArray());
outputStream.close();
/* Now read it back */
FileInputStream inputStream = new FileInputStream(storePath);
KeyStore keyStore2 = KeyStore.getInstance(storeType);
keyStore2.load(inputStream, storePass.toCharArray());
Key privateKey2 = keyStore2.getKey("eckey", storePass.toCharArray());
我使用的曲線不受Sun/Oracle安全提供程序支持,所以我使用Bouncy Castle。 BC在我的安全提供商列表中的0位插入。存儲工作正常,回讀失敗:
java.security.UnrecoverableKeyException: Unknown named curve: 1.3.36.3.3.2.8.1.1.5
at sun.security.provider.KeyProtector.recover(KeyProtector.java:338)
at sun.security.provider.JavaKeyStore.engineGetKey(JavaKeyStore.java:138)
at sun.security.provider.JavaKeyStore$JKS.engineGetKey(JavaKeyStore.java:55)
at java.security.KeyStore.getKey(KeyStore.java:792)
顯然,JKS密鑰庫實現通過安全提供者列表不循環。但是,對於BC支持的其他KeyStore類型,此工作正常:PKCS12
和BKS
。 在使用BC恢復密鑰時,有沒有使用JKS
作爲KeyStore類型的方法?
代碼中使用的createX509Certificate
上述方法由下式給出:
private static X509Certificate createX509Certificate(String dn, String issuer, PublicKey publicKey, PrivateKey privateKey, String sigAlg) throws Exception {
X509V3CertificateGenerator certGenerator = new X509V3CertificateGenerator();
certGenerator.setSerialNumber(BigInteger.valueOf(Math.abs(new Random().nextLong())));
certGenerator.setIssuerDN(new X509Name(issuer));
certGenerator.setSubjectDN(new X509Name(dn));
certGenerator.setNotBefore(Calendar.getInstance().getTime());
certGenerator.setNotAfter(Calendar.getInstance().getTime());
certGenerator.setPublicKey(publicKey);
certGenerator.setSignatureAlgorithm(sigAlg);
X509Certificate certificate = (X509Certificate)certGenerator.generate(privateKey, "BC");
return certificate;
}
我甚至不能通過'keyPairGenerator.initialize(jceParamSpec);',除非我在第一個位置安裝BC。 –