x509certificate

I'm curious to know if there's a simplish way to create a self-signed certificate comparable to the below New-SelfSignedCertificate command (other providers are OK too, for instance). I want to use only the .NET libraries without P/Invoke or external libraries such as Bouncy Castle or without calling PowerShell from the application. New-SelfSignedCertificate -DnsName $certificateName -CertStoreLocation $certificateStore -KeyExportPolicy Exportable -Provider "Microsoft Enhanced RSA and AES Cryptographic Provider" -NotAfter $certificateNotAfter I suppose the simplest alternative would be to call

I have a been given a private key that turned out to be in pkcs8 format, which I managed to turn into a pem file using the following command: openssl pkcs8 -inform der -nocrypt -in private.key -out pkey.pem I now need to convert this to pkcs12 so I can use it in .NET to create an X509 certificate (also I'd like to import it to windows cert manager). I tried this command: openssl pkcs12 -export -name myalias -in mycert.crt -inkey pkey.pem -out keystore.p12 however, I don't have the public key, I've tried using the pkey.pem file as the -in arg, but it tells me No certificate matches private key

I am referring Validate X.509 certificate against CA in Java this post. My implementation of checkServerTrusted look like: @Override public void checkServerTrusted(X509Certificate[] certs, String authType) throws CertificateException{ InputStream inStream; try { inStream = new FileInputStream("E:\\Desktop\\cert\\domain.crt"); CertificateFactory cf = CertificateFactory.getInstance("X.509"); X509Certificate Mycert = (X509Certificate)cf.generateCertificate(inStream); inStream.close(); if (certs == null || certs.length == 0 || authType == null || authType.length() == 0) { throw new

now I looking for solution regarding task how to rewrite deprecated solution for client side x509 certificate authentication via HttpComponentsMessageSender (not relevant). For example, deprecated solution is: SSLSocketFactory lSchemeSocketFactory = new SSLSocketFactory(this.keyStore, this.keyStorePassword); Scheme sch = new Scheme("https", 443, lSchemeSocketFactory); DefaultHttpClient httpClient = (DefaultHttpClient)getHttpClient(); httpClient.getConnectionManager().getSchemeRegistry().register(sch); As new solution with CloseableHttpClient I am using: SSLContextBuilder sslContextBuilder =

This code relates to DKIM signature verification used in anti-spam efforts. I have a byte[] from s1024._domainkey.yahoo.com that is ASN.1 encoded, but I don't know if that alone contains enough information to materialize a public key. Based on this class , it appears I can convert an ASN.1 key into a X509Certificate Public key, but I need to supply an OID and some ASN.1-encoded parameters. In this example I have metadata that the ASN1 key is: An RSA encoded key (ASN.1 DER-encoded [ITU-X660-1997] RSAPublicKey per RFC3447) Used with either sha1 sha256 hash algorithms Uses an OID relating to the

I have to write a tool which validates if a X509 certificate is valid or not (input = cert path / subject and password). How can I do that? I don't know much about certs... Take a look at X509Certificate2.Verify() In general, RFC 3280 includes almost complete instructions regarding how to perform validation, however those instructions are very non-trivial. Additionally you would need to read RFC 2560 (OCSP) and implement OCSP client. For most tasks you will find our TElX509CertificateValidator component perfectly suitable. It checks certificate paths, CRL and OCSP revocation (and checks