x509certificate

How does one create a java.security.cert.X509Certificate instance from a PEM-formatted String? The PEM-formatted String is a HTTP request "SSL_CLIENT_CERT" header value. ANSWER : Based on mgaert's answer, here's what I wrote in Scala : val cert = factory.generateCertificate( new ByteArrayInputStream( Base64.decodeBase64( cert.stripPrefix("-----BEGIN CERTIFICATE-----").stripSuffix("-----END CERTIFICATE-----") ) ).asInstanceOf[X509Certificate] Decode the Base64 to binary, with some InputStream reading it, then try CertificateFactory cf = CertificateFactory.getInstance("X.509"); Certificate cert

I'm trying to process X509 certificates in several steps and running into a couple of problems. I'm new to JCE so I not completely up to date on everything yet. We want to be able to parse several different X509 certificates based on different encodings (PEM, DER and PCKS7). I've exported the same certificate from https://belgium.be in PEM and PCKS7 format using FireFox (certificate including chain). I've left couple lines out that are not needed for the questions public List<X509Certificate> parse(FileInputStream fis) { /* * Generate a X509 Certificate initialized with the data read from the

Let's say I have three certificates (in Base64 format) Root | --- CA | --- Cert (client/signing/whatever) How can I validate the certs and certificate path/chain in C#? (All those three certs may not be in my computer cert store) Edit : BouncyCastle has the function to verify. But I'm trying not to use any third-party library. byte[] b1 = Convert.FromBase64String(x509Str1); byte[] b2 = Convert.FromBase64String(x509Str2); X509Certificate cer1 = new X509CertificateParser().ReadCertificate(b1); X509Certificate cer2 = new X509CertificateParser().ReadCertificate(b2); cer1.Verify(cer2.GetPublicKey()

I've created a chain hierarchy like this. root-ca ==> signing-ca ==> subordinate-ca ==> server It is mentioned to create chain bundle, the lowest should go first. $ cat server.crt subordinate-ca.crt signing-ca.crt > server.pem But verification fails. $ openssl verify -CAfile root-ca.crt server.pem error 20 at 0 depth lookup:unable to get local issuer certificate However, if I change the order it seems to work. $ cat signing-ca.crt subordinate-ca.crt server.crt > server.pem $ openssl verify -CAfile root-ca.crt server.pem server.pem: OK So what would be the error here? The chain after "cat"

When I make x509 certificate to encypt and decypt message, I got some error information and could not fix this problem. Could someone ever happend to solve this bug? thanks. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Security.Cryptography.CryptographicException: keyset does not exist。 Source Error: Line 53: using (RSACryptoServiceProvider rsaProviderDecrypt = (RSACryptoServiceProvider)cerDecrypt.PublicKey.Key) Line

I am looking for an example or tutorial to generate X509 Certificates using BC in Java. A lot of example are having/using deprecated API. I gave a look at BC, but it doesn't show which class does what or no proper documentation/example. Please If any one you are having idea about it, please point me to a tutorial where I can use BC to generate X509 Certificates. [Generation and writing the public and private keys to files] The X509v3CertificateBuilder seems like the class to use. There are some examples of using the new API on the bouncycastle wiki . Creation of KeyPairGenerator: private

i want to consume a REST service with my spring application. To access that service i have a client certificate (self signed and in .jks format) for authorization. What is the proper way to authenticate against the rest service? This is my request: public List<Info> getInfo() throws RestClientException, URISyntaxException { HttpEntity<?> httpEntity = new HttpEntity<>(null, new HttpHeaders()); ResponseEntity<Info[]> resp = restOperations.exchange( new URI(BASE_URL + "/Info"), HttpMethod.GET, httpEntity, Info[].class); return Arrays.asList(resp.getBody()); } Here is example how to do this using

I am trying to export a cert without the private key as as BASE-64 encoded file, same as exporting it from windows. When exported from windows I am able to open the .cer file in notepad. When I try the following and open on notepad I get binary data...I think it is...not readable. X509Certificate2 cert = new X509Certificate2("c:\\myCert.pfx", "test", X509KeyStorageFlags.Exportable); File.WriteAllBytes("c:\\testcer.cer", cert.Export(X509ContentType.Cert)); I tried removing the 'X509KeyStorageFlags.Exportable" but that doesn't work. Am I missing something? Edit - I tried File.WriteAllText("c:\