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Encryption and decryption Technology Foundation, PKI and private CA creation

CA:OpensslOpenCAOpenSSL command:Configuration file:/etc/pki/tls/openssl.cnfTo build a private CA:Generate a self-visa book on the service that is configured as a CA, and provide the required directories and files for the CA;Steps:1. Generate Private key2. Generate self-signed certificate3. Provide the required directories and files for the CAOperation Steps(1) Generate the private key;[[Email protected] ~]

Encryption and decryption of learning notes, PKI,CA

what algorithm)Issuer NameValidity periodPrincipal Name (information of the owner)Principal public keyIssuer's unique identityUnique identity of the subjectExtendedIssuer's signatureSection: The following650) this.width=650; "src=" Http://s4.51cto.com/wyfs02/M01/7F/4E/wKiom1cZiPbD5SqBAABJk420JP4356.png "title=" Image 1.png "alt=" Wkiom1czipbd5sqbaabjk420jp4356.png "/>6. CA:CA kind: Public trust CA, private CA;Establish a private CA:(when used only in private scope)Tool: OpenSSL: can be used to

Linux Cryptographic decryption basics, PKI and SSL, creating private CAs

;LIBSSL: Library , SSL and TLS are implemented, openssl command: ENC, CA, dgstSymmetric encryption:Tools: OpenSSL enc, GPGAlgorithm: 3DES, AES, Blowfish, TwofishENC command:Encryption: ~]# OpenSSL enc-e-des3-a-salt-in fstab-out fstab.ciphertextDecryption: ~]# OpenSSL enc-d-des3-a-salt-in fstab.ciphertext-out fstabOne-way encryption:Tools: Md5sum, Sha1sum, Sha224sum, sha256sum,..., OpenSSL dgstDGST command:OpenSSL dgst-md5/path/to/somefile[email protected] ~]# OpenSSL Dgst-md5/tmp/fstabMD5 (/t

PKI entry-level Introduction

With the rapid development of e-commerce, information security has become one of the key issues, especially the requirements of online payment and online banking for information security. In order to carry out secure e-commerce activities on the Internet, public key infrastructure (PKI) has been widely used at home and abroad. Do we really need PKI? What is the use of P

Deploy a globally trusted PKI

Deploy a globally trusted PKI John Morello's column contains prerelease information that may change. The Public Key Infrastructure (or PKI) is a basic element for building trust between different applications, operating systems, and identity recognition fields. It is built on a hierarchical trust model. In this model, the final entity trusts the highest root level public key, so it implicitly trusts any ot

Overview of the Windows AD Certificate Services Family---PKI (1)

PKI (public Key Infrastructure) is a combination of software that uses encryption technology, processes, and services to help companies protect their communications and business transactions. A PKI is a system consisting of digital certificates, CAS, and other registered authorities. When an electronic transaction occurs, the PKI confirms and certifies the validi

Working Principle and encryption and decryption process of CA Based on PKI

ToPKIBasicCAWorking Principle andEncryption and decryption Processes 650) This. width = 650; "width =" 555 "Height =" 415 "Title =" pki.jpg "style =" width: 701px; Height: pixel PX; "alt =" wkiol1pcqkcz_vzjaag9jh9do8377.jpg "src =" http://s3.51cto.com/wyfs02/M01/43/CA/wKioL1PcqKCz_VzJAAGo9JH9dO8377.jpg "/> PKI (Public Key Infrastructure) is a key management platform that complies with established standards, it can provide cryptographic services such

The composition of PKI

PKI Public Key Infrastructure is a system or platform that provides public-key cryptography and digital signature services to manage keys and certificates. An organization can establish a secure network environment by using the PKI framework to manage keys and certificates.PKI mainly consists of four parts: Certificates in the form of X-V3 and certificate revocation List CRL (V2), CA operation Protocol, CA

PHP PKI Encryption Technology Detailed code example

PKI is the initial acronym of Public Key Infrastructure, which is the key infrastructure; PKI is a standard technology and specification to use public key cryptography to provide a set of security foundation platform for e-commerce development. In the Privilege standard, the PKI is defined as an infrastructure that supports public key management and can support

Introduction to PKI (5)

PKIIs a new security technology, which consistsPublic KeyCryptographic technology, digital certificates, certificate issuing authority (CA), and security policies for public keys. PKI is a system that uses public key technology to implement e-commerce security. It is an infrastructure that ensures security through network communication and online transactions. In a sense, PKI includes securityAuthentication

Introduction to PKI (6)

PKI core-Certification Center CA) Introduction To ensure the transmission security of online digital information, in addition to using stronger encryption algorithms and other measures in communication transmission, a trust and trust verification mechanism must be established, that is to say, all parties involved in e-commerce must have a verifiable identity, which is a digital certificate. Digital Certificates are the identity certificates used by en

PKI (Public Key Infrastructure) Basics Note

), through the hashing algorithm, transformed into a fixed-length output, the output is the hash value. This conversion is a compression map, that is, the space of the hash value is usually much smaller than the input space, the different inputs may be hashed to the same output, but not from the hash value to uniquely determine the input value. Simply, a function that compresses messages of any length to a message digest of a fixed length. Common algorithms? SHA-1, SHA-256 , MD5, MD2Characteris

PKI fundamentals and experiments based on Cisco IOS

digitally signed.We find that both symmetric and asymmetric cryptographic algorithms have their advantages and disadvantages, so the solution is to use asymmetric encryption algorithms to encrypt the symmetric encryption calculationThe key generated by the law is very secure, and the symmetric encryption algorithm is used to encrypt the real data, which is compact, fast, and secure, which is the solution we usually use in the actual environment.Solutions. But then there is a problem, is how the

Introduction to PKI and Certificate Services application

5th Chapter-PKI and Certificate Service Application First, public key infrastructure (1), what is a PKI ØPKI (public key infrastructure, PKI) is a technology that ensures information security by using public key technology and digital signatures, and is responsible for verifying the identity of a digital certificate holder Ø In a

Introduction to PKI (2)

Cryptographic algorithm encryption based on PKI) A single-key cryptographic algorithm, also known as symmetric cryptographic algorithms, refers to encryption.KeyThe same password algorithm as the decryption key. Therefore, when transmitting and processing information, the sender and receiver of information must jointly hold this password, which is called a symmetric password ). In symmetric key cryptography algorithms, encryption and decryption operat

Introduction to PKI (3)

Public Key digital signature algorithm Signature Based on PKI) DSADigital Signature Algorithm, Digital Signature Algorithm, used as part of the Digital Signature standard), it is another public key Algorithm, it cannot be usedEncryption, Used only as a digital signature. DSA uses a public key to verify the data integrity and identity of the Data sender for the receiver. It can also be used by a third party to determine the authenticity of the signatur

Introduction to PKI (4)

Digital Certificate Based on PKI Digital Certificates are the identity certificates for various entities (cardholders/individuals, merchants/enterprises, gateways/banks) to exchange information and conduct business activities online, all parties to the transaction need to verify the validity of the certificate of the other party, so as to solve the mutual trust problem. A certificate is a digital signature provided by the certificate authority.KeyThe

PKI and certificate service applications

With the rapid development of network technology, Internet has become an indispensable part of people's lives, but it also faces installation problems. To ensure that the Internet can transmit data securely, technicians have developed PKI technology. Now let's look at the data signature for PKI. Provides the following functions: Identity Verification: the recipient can confirm the sender's identity Data Int

PHP PKI encryption Technology (OpenSSL) detailed _php skills

Copy Code code as follows: //PKI EncryptionUse PKI encryption to open OpenSSL extensions php.ini extension = Php_openssl.dll extension /*pki mode is * Public key encryption, private key decryption; * Private key encryption, public key decryption; */ Private key encryption, public key decryption Client $data data $data = ' ABCD '; Get the private

Windows 2008 PKI Combat 1: Management

Microsoft PKI has made many improvements in Windows Server 2008 and has added many features, the first of which is certificate lifecycle management, especially with regard to automatic registration of computers and user certificates. In Windows Server 2008, Certificate Lifecycle Management is enhanced by the use of certificate roaming new features. We will describe this feature later. A more general practice for developers is to link the

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