The SSL certificate file contains the X.509 certificate (which, in turn, contains a public key used for encryption). The SSL Certificate Key File contains the private key corresponding to the public key in the certificate. In order for the webserver to encrypt and decrypt traffic, it must have both the public key (certificate) and corresponding … Read more
Here is a list of four good books on the subject (SSL/TLS): SSL and TLS: Theory and Practice SSL and TLS: Designing and Building Secure Systems SSL & TLS: Essentials Securing the Web Network Security with OpenSSL Here are some good books on PKI: Understanding PKI: Concepts, Standards, and Deployment Considerations Planning for PKI: Best … Read more
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
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
(Expanding more than I feel is appropriate for an edit.) PKCS1, available in several versions as rfcs 2313 2437 3447 and 8017, is primarily about using the RSA algorithm for cryptography including encrypting decrypting signing and verifying. But since crypto is often used between systems or at least programs it is convenient to have a … Read more
The Subject, in security, is the thing being secured. In this case it could be a person’s email or a website or a machine. If we take the example of an email, say my email, then the subject key container would be the protected location containing my private key. The certificate store usually refers to … Read more
Simply drag & drop your .cer Files into your running Simulator window. You’ll see Safari flashing and then the import dialog for your Certificate (or Certificate Authority)… Working for iOS 7 Simulator (and i Think did work for iOS 6 too).
openssl rsa -in privkey.pem -pubout > key.pub That writes the public key to key.pub
Your understanding of “public keys encrypt, private keys decrypt” is correct… for data/message ENCRYPTION. For digital signatures, it is the reverse. With a digital signature, you are trying to prove that the document signed by you came from you. To do that, you need to use something that only YOU have: your private key. A … Read more