OpenSSL is an open source SSL implementation. The simplest and most important application based on the OpenSSL directive is to use Req, CAs, and X509 to issue a certificate.OpenSSL provides command-line options and interactive two ways to perform
OpenSSL introduction and compilation steps on Windows, Linux, and Mac systems
OpenSSL Introduction: OpenSSL is a powerful Secure Socket Layer password library, which includes major cryptographic algorithms, common keys, certificate encapsulation
If your nginx is using a dynamic OpenSSL library, upgrade OpenSSL directly, if your nginx is using a static OpenSSL library, then recompile and install Nginx. PHP Build Fix1. Nginx uses the dynamic OpenSSL library to upgrade OpenSSL directly1.1
Rsautl is a tool for RSA, a subset of the features of RSA and dgst that can be used to generate digital signatures, verify digital signatures, encrypt and decrypt files .Pkeyutl is a generic tool for asymmetric encryption, which is roughly the same
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There is also a service that tests whether the Web site is affected: Test your server for Heartbleed (cve-2014-0160) (now long 503)
According to the description on the page, this OpenSSL implementation vulnerability can
Using OpenSSL utilities
An OpenSSL command line takes the following form:
openssl utility arguments
For example:
openssl x509 -in OrbixCA -text
Each Command is individually described in this Appendix. To get a list of the arguments
OpenSSL req is used to generate a certificate request for a third party authority CA to issue and generate the certificate we need. The Req command can also invoke the X509 command for format conversion and display information such as Text,modulus
1. Overview of Asymmetric encryption algorithmsAsymmetric encryption algorithm is also called Public key algorithm, which solves the problem of symmetric encryption algorithm key distribution, the basic features of asymmetric encryption algorithm
1. Summary of information and digital signatureInformation Summary: Processing the data to obtain a fixed length of the results, its characteristics input:1, the output length is fixed. That is, the output length is independent of the input length.2,
Chapter I.1,: http://www.openssl.org/source/next a new version of OpenSSL, I am under the version is: openssl-1.0.0e.tar.gz1.0.1G source package can be obtained by #wget http://www.openssl.org/source/openssl-1.0.1g.tar.gz2. In the downloaded GZ
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