本文介紹了如何使用IBMJSSE2默認提供程序從SSLContext獲取所有TLS會話？的處理方法，對大家解決問題具有一定的參考價值，需要的朋友們下面隨著小編來一起學習吧！
問題描述
我使用IBMJSSEProvider2作為TLS連接的默認設置，并使用以下代碼顯示有關TLS會話的信息：
SSLSessionContext sslSessionContext = SSLContext.getDefault().getClientSessionContext();
Enumeration<byte[]> sessionIds = sslSessionContext.getIds();
while (sessionIds.hasMoreElements()) {
SSLSession sslSession = sslSessionContext.getSession(sessionIds.nextElement());
writer.write("Client: " + sslSession.getPeerHost() + ":" + sslSession.getPeerPort() + "
");
writer.write(" Protocol: " + sslSession.getProtocol() + "
");
writer.write(" SessionID: " + byteArrayToHex(sslSession.getId()) + "
");
writer.write(" CipherSuite: " + sslSession.getCipherSuite() + "
");
for (X509Certificate certificate : sslSession.getPeerCertificateChain()) {
writer.write(" X509 Certificate: " + certificate.getSubjectDN() + "
");
writer.write(" Issuer: " + certificate.getIssuerDN().getName() + "
");
writer.write(" Algorithm: " + certificate.getSigAlgName() + "
");
writer.write(" Validity: " + certificate.getNotAfter() + "
");
}
}
上面的代碼在一個WebSphere8.5實例上運行。當我運行該算法時，它不會打印有關我使用Spring3.2中的RestTemplate實現連接到任何HTTPS URL的任何信息。
使用其他提供程序(如Oracle提供程序)顯示了相關信息。我是否遺漏了使其正常工作的內容？
我正在嘗試創建一個簡單的解決方案來解決一個活動的WebSphere實例支持哪些TLS版本的問題。當然，對于實時客戶端，不建議這樣做。
推薦答案
問題可能是底層庫沒有使用WebSphere上的默認上下文。因此，我必須創建一個定制的客戶端，使其使用特定的SSLContext，這樣我就可以列出我需要的所有信息。以下是實現此目的的代碼：
private static String URL = "https://www.google.com";
private static String TRUST_STORE_FILE = "/Users/xpto/trust.p12";
private static String TRUST_STORE_PASS = "truststore";
private static String TRUST_STORE_TYPE = "PKCS12";
private static String TLS_VERSION = "TLSv1.2";
public static void main(String[] args) throws Exception {
KeyStore keyStore = KeyStore.getInstance(TRUST_STORE_TYPE);
keyStore.load(new FileInputStream(TRUST_STORE_FILE), TRUST_STORE_PASS.toCharArray());
SSLContext sslContext = SSLContexts
.custom()
.loadTrustMaterial(keyStore)
.useProtocol(TLS_VERSION)
.build();
HttpComponentsClientHttpRequestFactory clientFactory = new HttpComponentsClientHttpRequestFactory(HttpClients
.custom()
.setSSLSocketFactory(new SSLConnectionSocketFactory(sslContext))
.build());
RestTemplate restTemplate = new RestTemplate(clientFactory);
HttpHeaders requestHeaders = new HttpHeaders();
requestHeaders.setContentType(MediaType.APPLICATION_JSON);
requestHeaders.setAccept(Arrays.asList(MediaType.APPLICATION_JSON));
HttpEntity<String> requestEntity = new HttpEntity<String>(requestHeaders);
print("Requesting: " + URL);
ResponseEntity<String> response = restTemplate.exchange(URL, HttpMethod.GET, requestEntity, String.class);
print("Response: " + response.getBody());
printSSLContextInfo(sslContext);
}
private static void printSSLContextInfo(SSLContext sslContext) throws Exception {
print("-------------
Printing TLS Client Information");
SSLSessionContext sslSessionContext = sslContext.getClientSessionContext();
Enumeration<byte[]> sessionIds = sslSessionContext.getIds();
while (sessionIds.hasMoreElements()) {
SSLSession sslSession = sslSessionContext.getSession(sessionIds.nextElement());
print("Client: " + sslSession.getPeerHost() + ":" + sslSession.getPeerPort());
print(" Protocol: " + sslSession.getProtocol());
print(" SessionID: " + byteArrayToHex(sslSession.getId()));
print(" CipherSuite: " + sslSession.getCipherSuite());
for (X509Certificate certificate : sslSession.getPeerCertificateChain()) {
print(" X509 Certificate: " + certificate.getSubjectDN());
print(" Issuer: " + certificate.getIssuerDN().getName());
print(" Algorithm: " + certificate.getSigAlgName());
print(" Validity: " + certificate.getNotAfter());
}
}
}
public static String byteArrayToHex(byte[] a) {
StringBuilder sb = new StringBuilder(a.length * 2);
for (byte b : a)
sb.append(String.format("%02x", b));
return sb.toString();
}
public static void print(Object msg) {
System.out.println(msg);
}
這篇關于如何使用IBMJSSE2默認提供程序從SSLContext獲取所有TLS會話？的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，
