Products
Mind Mapping Software
Outlining Software
甘特图软件
Uses
Mind Maps for Education
企业思维导图
用于个人发展的思维导图
思维导图的好处
資源
特点
教育
个人和工作
台式电脑
Video Tutorials
Watch tips and tricks about using Mindomo.
Help Center
Detailed help guide on configuring and using Mindomo.
文章
Top 29 Mind Map Examples
Gantt Chart Software
Concept Map Template
Free mind map software
What is a concept map?
Gantt Chart Maker
Mind Map App
Concept Map Maker
Mind map template
定价
登入
注册
Products
Mind Mapping Software
Outlining Software
甘特图软件
Uses
Mind Maps for Education
企业思维导图
用于个人发展的思维导图
思维导图的好处
資源
部落格
Video Tutorials
Help Center
甚麼是思維導圖?
在线创建思维导图
概念图制作者
文章
Top 29 Mind Map Examples
Gantt Chart Software
Concept Map Template
Free mind map software
What is a concept map?
Gantt Chart Maker
Mind Map App
Concept Map Maker
Mind map template
特点
教育
个人和工作
台式电脑
定价
注册
登入
类别
全部
-
integrity
-
encryption
-
confidentiality
作者:
CAITLYN KNIGHTS
2 年以前
224
Cryptography
Cryptography involves the practice of securing information by converting it into an unreadable format, known as ciphertext, which can only be transformed back into readable text, or plaintext, with the use of a key.
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Cryptography
Important terms
Key space
Number of possible keys that can be created from an algorithm
Key
Whats used to turn Plaintext->Ciphertext
Description
Ciphertext->Plaintext
Encryption
Plaintext->Ciphertext
Cipher
Encryption algorithm/technique
Ciphertext
Encrypted text
Plaintext
Readable text
What is it
Needs key to convert it back to readable texts
Converts readable texts into a form which we cannot read
Encryption Cipher
Vigenenere
Uses 26*26 a-z grid
rot 13
Letter + 13 = letter
Caesar
Letter + 3= letter
Authentication
One's identity
non-repudiation
Sender did send the data
Integrity
Received data isn't tempted with or altered
Confidentiality
Can only be seen by intended people