Just to clarify, an X.509 certificate does not contain the private key. The word certificate is sometimes misused to represent the combination of the certificate and the private key, but they are two distinct entities. The whole point of using certificates is to send them more or less openly, without sending the private key, which … Read more
The common name attribute in a Distinguished Name is encoded as: X520CommonName ::= CHOICE { teletexString TeletexString (SIZE (1..ub-common-name)), printableString PrintableString (SIZE (1..ub-common-name)), universalString UniversalString (SIZE (1..ub-common-name)), utf8String UTF8String (SIZE (1..ub-common-name)), bmpString BMPString (SIZE (1..ub-common-name)) } where ub-common-name is 64. The last three encodings allow the use of all Unicode code points (using UTF-16 for … Read more
A CA certificate is a digital certificate issued by a certificate authority (CA), so SSL clients (such as web browsers) can use it to verify the SSL certificates sign by this CA. For example, stackoverflow.com uses Let’s Encrypt to sign its servers, and SSL certificates sent by stackoverflow.com mention they are signed by Let’s Encrypt. … Read more
Here is the simple steps for you While generating the CSR you should use -config and -extensions and while generating certificate you should use -extfile and -extensions Here is the example: openssl req -new -nodes -keyout test.key -out test.csr -days 3650 -subj “/C=US/ST=SCA/L=SCA/O=Oracle/OU=Java/CN=test cert” -config /etc/pki/tls/openssl.cnf -extensions v3_req openssl x509 -req -days 3650 -in test.csr … Read more
The basics command line steps to generate a private and public key using OpenSSL are as follow openssl genrsa -out private.key 1024 openssl req -new -x509 -key private.key -out publickey.cer -days 365 openssl pkcs12 -export -out public_privatekey.pfx -inkey private.key -in publickey.cer Step 1 – generates a private key Step 2 – creates a X509 certificate … Read more
This is not bad. Java doesn’t provide any functions to write PEM files. What you are doing is the correct way. Even KeyTool does the same thing, BASE64Encoder encoder = new BASE64Encoder(); out.println(X509Factory.BEGIN_CERT); encoder.encodeBuffer(cert.getEncoded(), out); out.println(X509Factory.END_CERT); If you use BouncyCastle, you can use PEMWriter class to write out X509 certificate in PEM.
You need to specify an extensions file. For example: openssl x509 -days 365 -in myCSR.csr -extfile v3.ext -CA myCA.crt -CAkey myCA.key -CAcreateserial -out userCertificate.crt The extensions file (v3.ext) can look like this: authorityKeyIdentifier=keyid,issuer basicConstraints=CA:FALSE keyUsage = digitalSignature, nonRepudiation, keyEncipherment, dataEncipherment
Interesting problem you got there. As far as I could tell with my Google-fu, there exists support for #X509PKIPathv1 in some projects (e.g., Oracle’s XMLSec or Open SAML), however it is not widespread and even application like Soap UI don’t support it for SOAP-WS. Not only that, but other languages/frameworks have the same lack of … Read more
Short answer: You can starting in .NET Framework 4.7.2. This functionality was originally added to .NET Core 2.0 in the form of the CertificateRequest class, which can build a PKCS#10 certification signing request or an X.509 (self-signed or chained) public key certificate. The classes for that feature were made available in .NET Framework 4.7.2. using … Read more
I will answer to my own questions, but not delete it, in case someone else got the same problems: return new JcaX509CertificateConverter().getCertificate(certificateHolder); And for attribute certificates: return new X509V2AttributeCertificate(attributeCertificateHolder.getEncoded()); Not nice, as it is encoding and decoding, but it works.