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.
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
Public key cryptography: The key is a pair of children appearPublic key: public to all; PubKeyPrivate key: Keep it for yourself, must ensure its privacy; secret keyFeatures: Data encrypted with the public key can only be decrypted with the private
About 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
OpenSSLUsage details OpenSSL: Components: libcrypto and libssl Openssl Openssl Many sub-commands can be divided into three types: Standard Commands Message Digest command (dgst subcommand) Encryption command (enc subcommand) Standard Commands: enc,
Let's introduce the next three encryption methods:
Symmetric encryption
Public Key Cryptography
One-way encryption
Symmetric encryptionImplementation Tool OpenSSL ENC introduction[[email protected] sh]# man encenc -
Secure programming with the OpenSSL API
First, Concept: 1. What is SSL. SSL is an abbreviation, the full name is Secure Sockets Layer. It is the standard that supports secure communication over the Internet and integrates data cryptography into
Prepare the following packages: Cryptography,openssl,perl (compile OpenSSL required)Compiling OpenSSLOpen Vcvarsall.bat (You must have visual Studio installed on your computer) and switch to the OpenSSL directory at the console command
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
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