Cryptography can be defined as communication techniques and secure information derived from mathematical concepts or rules-based calculationsA field of study and practice to secure information, preventing third parties from reading information to which they are not privy.

Cryptography

Definition 

Cryptography can be defined as communication techniques and secure information derived from mathematical concepts and rules-based calculations called algorithms, in order to transform messages in ways that are hard to decipher.

The prefix “crypt-” means “hidden” and the suffix “-graphy” stands for “writing.” 

Introduction

In simple words, Cryptography refers to a method by which information and communications tare protected through the use of codes, in order to protect information from falling into the wrong hands and so that only those for whom the information is intended can read and process it.

An original human readable message is referred to as plaintext in Cryptography. This so called ‘plaintext’ is changed by means of an algorithm, or series of mathematical operations, into something that to an uninformed observer would look like gibberish; this gibberish is called ciphertext.

A basic example of cryptography could be an encrypted message in which letters are replaced with other various characters. 

So, in order to decode the encrypted contents, one would require a grid or table that defines how the letters are transposed.

Here are three general classes of NIST-approved cryptographic algorithms, which are defined by the types of cryptographic keys that are used with each:

Cryptography

परिभाषा

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परिचय

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  1. बिटकॉइन
  2. बिटकॉइन कैश
  3. लिटिकोइन
  4. स्टेलर
  5. आईओटीए
  6. लहर
  7. लोकाचार

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