openssl verify certificate example

Self-built CA Based on OpenSSL and SSL certificate issuance For details about SSL/TLS, see the SSL/TLS principles.For more information about Certificate Authority (CA) and digital certificate, see OpenSSL and SSL digital certificate

In HTTPS learning note two, the concept of digital certificates has been clarified, composed and how the client validates the server-side certificate during the HTTPS connection process. This chapter describes how to use the OpenSSL library to

Digital Certificate and its authentication process [reprinted], digital certificate reprinted As we all know, public key cryptography makes it easy to use digital signatures, encrypted communications, and other key services by using the public key

======================================* OPENSSL======================================1. Install OPENSSL and confirm the location of the openssl. cnf file.$ Yum install openssl$ Rpm-qa | grep openssl$ Rpm-ql openssl -*2. Related directory settings,

Use OpenSSL to generate a certificate Step 1. Create key (password protected) Openssl genrsa-out prvtkey. pem 1024/2038 (with out password protected) Openssl genrsa-des3-out prvtkey. pem1024/2048 (password protected) The command generates a 1024/2048

From: http://blog.csdn.net/aking21alinjuju/article/details/7654097 I. Generate a CA certificate Currently, the CA of a third-party authority is not used for authentication and serves as the CA. Prerequisites: Download www.openssl.org from the

Use the OpenSSL to verify the certificate chain with the following command:Debian:/home/zhaoya/openssl#openssl verify-cafile Root_cert User_certThe Root_cert can contain a lot of certificates, you can use the Cat command to merge multilevel CA

Step 1. Create key (password protected)   OpenSSL genrsa-out prvtkey. pem1024/2038 (with outPassword Protected) OpenSSL genrsa-des3-out prvtkey. pem1024/2048 (Password Protected) The command generates a 1024/2048-bit key. Step 2. Create

About OpenSSL OpenSSL SSL is an abbreviation for the Secure Socket Layer protocol, which provides covert transmission over the Internet. Netscape Company introduced the SSL protocol standard at the same time as the first web browser, there are now 3.

In the previous article, we talked about common authentication methods: User Name/password authentication and Windows authentication. In the next article, we will introduce another important credential type: X.509 Certificate and the authentication