从JKS KeyStore回读ECPrivateKey

我试图从JKS KeyStore读回ECPrivateKey（包括证书链），如下面的代码所示。从JKS KeyStore回读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());

我使用的曲线不受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。存储工作正常，回读失败：

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)

显然，JKS密钥库实现通过安全提供者列表不循环。但是，对于BC支持的其他KeyStore类型，此工作正常：PKCS12和BKS。 在使用BC恢复密钥时，有没有使用JKS作为KeyStore类型的方法？

代码中使用的createX509Certificate上述方法由下式给出：

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; 
}

来源

2012-12-28 martijno

我甚至不能通过'keyPairGenerator.initialize（jceParamSpec）;'，除非我在第一个位置安装BC。 –

我唯一的想法是，以实现自己的Provider是既可以代理“的KeyFactory”请求，BouncyCastle的供应商，其余的另一个知道JKS或代理所有请求到BouncyCastle的“KeyStore”请求除外。 Here's关于如何实现提供者的文档。

来源

2013-01-04 22:56:48 Staros

谢谢。要么，要么将格式切换为PKCS12。 – martijno

从JKS KeyStore回读ECPrivateKey

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