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所在平台: Udemy |
课程主页: https://www.udemy.com/course/security-and-encryption-fundamentals/
课程评论：没有评论
课程名称：网络安全与加密基础 概述：欢迎参加KN学习的安全与加密培训。本课程介绍了安全性和加密的基本概念。加密是将信息编码的过程，将原始信息（明文）转换为另一种形式（密文）。理想情况下，只有授权方可以将密文解码为明文，从而访问原始信息。加密本身并不能防止干扰，但可以阻止潜在拦截者理解内容。 技术上，加密方案通常使用算法生成的伪随机加密密钥。虽然可以在没有密钥的情况下解密消息，但对于设计良好的加密方案，则需要大量计算资源和技能。授权接收者可以使用由发送者提供的密钥轻松解密信息，而未授权用户则无法访问。 历史上，各种加密形式曾被用于加密通信，早期的加密技术常用于军事信息传递。随着时间的推移，新技术不断涌现，现今已广泛应用于多个领域。现代加密方案采用公钥和对称密钥的概念，确保安全性，因为现代计算机在破解加密方面效率低下。 端到端加密（E2EE）是一种通信系统，只有交互的用户可以阅读消息。其原则是防止潜在的窃听者，包括电信提供商、互联网提供商以及通信服务的提供商，获取解密对话所需的加密密钥。即信息只由真实的发送者和接收者阅读，而其他任何第三方都无法解密和存储信息。 在本培训中，您将学习加密的基础知识及如何应用加密概念。
Welcome to the KN Learning Security and Encryption training. Security and encryption is the process of encoding information. This process converts the original representation of the information, known as plaintext, into an alternative form known as ciphertext. Ideally, only authorized parties can decipher a ciphertext back to plaintext and access the original information. Encryption does not itself prevent interference but denies the intelligible content to a would-be interceptor.For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. It is possible to decrypt the message without possessing the key but, for a well-designed encryption scheme, considerable computational resources and skills are required. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients but not to unauthorized users.Historically, various forms of encryption have been used to aid in cryptography. Early encryption techniques were often utilized in military messaging. Since then, new techniques have emerged and become commonplace in all areas of modern computing. Modern encryption schemes utilize the concepts of public-key and symmetric-key. Modern encryption techniques ensure security because modern computers are inefficient at cracking the encryption.End-to-end encryption (E2EE) is a system of communication where only the communicating users can read the messages. In principle, it prevents potential eavesdroppers - including telecom providers, Internet providers, and even the provider of the communication service - from being able to access the cryptographic keys needed to decrypt the conversation.End-to-end encryption is intended to prevent data being read or secretly modified, other than by the true sender and recipient(s). The messages are encrypted by the sender but the third party does not have a means to decrypt them, and stores them encrypted. The recipients retrieve the encrypted data and decrypt it themselves. On this training you will learn the basics of encryption and how to apply encryption concepts.
