pki digital signature

Information Digest, digital signatureAccording to the article, the asymmetric key algorithm is:http://blog.csdn.net/u014419512/article/details/26290821Now we are able to continue our scene:If one day. Alice received a copy of the signature Bob the file. Alice wished to confirm that the document must have come from Bob, and Alice wished to be sure. The document was not tampered with in the course of its tra

Tags: Data Encryption basic CA digital signature Data security-> Encryption 1. Basic concepts: Confidentiality: prevent others from getting data Integrity: data is not damaged Authentication: ensure the data source PKI (Public Key Infrastructure): Public Key Infrastructure. Generate password through negotiation: interne Key Exchange (IKE) Diffie-H

transmission of electronic files, authenticity and non-repudiation. The digital signature is defined in the Iso7498-2 standard as: "Some data attached to a data unit, or a cipher transformation of a data unit, allows the receiver of the data unit to confirm the integrity of the data unit source and data unit, and to protect the data against forgery by a person (such as a receiver). The American Electronic

 Original (English): http://www.youdzone.com/signature.html This article (Chinese, translated) is reproduced in: http://www.ruanyifeng.com/blog/2011/08/what_is_a_digital_signature.html 1. Bob has two keys, one is the public key, the other is the private key. 2. Bob gave his public key to his friends----patty, Doug, Susan----each one. 3. Susan is going to write a confidential letter to Bob. When she finished, she used Bob's public key to encrypt it, and it was a secret effect. 4. When Bob

the data must be decrypted with another key.) ), get a summary of the text, and then use the same hash algorithm as the sender to calculate the digest value, and then compare with the decrypted summary, found that the two are exactly the same, the text has not been tampered with.In fact, the two concepts of encryption, decryption and digital signature are introduced, and the process of implementation is ex

Encryption and decryption use the same key algorithm, called symmetric encryption algorithm. encryption and decryption use different keys, called asymmetric encryption algorithms. The public key system is an asymmetric encryption algorithm. For symmetric encryption, symmetric keys must be protected. For public key algorithms, private keys must be protected.Public key encryption algorithms and derived digital signatures and

I. Overview 1, the digital Signature algorithm can be regarded as a message digest algorithm with a key, and this key includes the public and private keys. He's a combination of asymmetric encryption algorithms and message digest algorithms. 2, the digital Signature algorithm is the public Key Infrastructure (

Reference to this blog: Introduction to RSA encryption algorithm basic knowledge of digital signature 1. Digital signatures and data encryption are required to use the RSA and other asymmetric encryption algorithm Where the digital signature is the sender with the priv

Paperless Signature Overview In this chapter, we will study digital signatures, which are the first level to determine the identity of the contact who exchanges messages. We will use code samples to describe the two methods used to identify the message source (one is more difficult and the other is easier ). We will also list the digital

Shore Yang Xiping This paper introduces the application of digital signature technology in E-government, the traditional digital signature technology is based on asymmetric cryptographic algorithm, the original text is transmitted in clear text, in this way, the security of the original text is greatly threatened, the

This article mainly talks about encryption and digital signature in cryptography, and how to use it in java. For partners interested in cryptography, we recommend that you read Bruce Schneier's book: Applied Crypotography. Security has been greatly improved in the jdk1.5 release, and direct support for the RSA algorithm is also provided. Now we start with an example to solve the problem (this article is onl

In an Android system, all applications installed to the system must have a digital certificate that identifies the author of the application and establishes a trust relationship between the applications, if a permission ProtectionLevel is signature, Then only applications that have the same digital certificate as the program where the permission resides can get t

1. What is a digital signature? A digital signature is a sign of your program as your own, and when someone sees the signature, they know it's relevant to you .2. Why digital signatures? The simplest and most straightforward answe

This article mainly talks about encryption and digital signature in cryptography, and how to use it in java. For partners interested in cryptography, we recommend that you read Bruce Schneier's book: Applied Crypotography. Security has been greatly improved in the jdk1.5 release, and direct support for the RSA algorithm is also provided. Now we start with an example to solve the problem (this article is onl

CA certificates are widely used in digital signatures, and because Windows supports RSA algorithms well, many third-party applications under the Windows platform support the application of cryptography for RSA algorithm certificates. Recently, the opportunity to take advantage of project summary, especially in Windows under the common CA Certificate digital signature