1. 加密：
顾名思义，加密通常是一种用于使用算法隐藏消息的技术。使用算法对消息进行编码是密码学的基本应用。通常有助于保护私人信息、敏感数据，并增强客户端应用程序和服务器之间通信的安全性。它被认为是最有效和最流行的数据安全技术之一。
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2. 密码学：
密码学，顾名思义，通常是对加密等方法的研究。它的主要目标是提供简单的方法来使用加密和相关技术来保护和保护信息和通信。它只是允许一个人存储敏感信息或通过不安全的网络传输它，以便除了预期的接收者之外的任何人都无法读取或访问它。其功能包括身份验证、不可否认性、机密性和完整性。
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加密和密码学的区别：
|
Encryption |
Cryptography |
|---|---|
| It is a process of encoding message or information so that only authorized parties can have access to it. | It is study of techniques such as encryption for secure communication in presence of third parties. |
| It is considered as principal application of cryptography. | It is considered as art of creating codes using techniques of encryption and decryption. |
| It simply uses algorithm to encrypt data and secret key to decrypt it. | It simply provides methods of protecting data through encryption and its related processes. |
| It is all about mathematical and algorithmic in nature. | It is all about techniques and technologies in nature. |
| Its main purpose is confidentiality that means concealing content of message by translating it into code. | Its main purpose is to apply complex mathematics and logic to design strong encryption methods. |
| Types of encryption includes symmetric and asymmetric encryption. | Types of cryptography includes symmetric key cryptography and asymmetric key cryptography. |
| It provides security to data all times, maintains integrity, protects privacy, protects data across devices, etc. | In provides techniques like encryption techniques that can guard information and communication, cryptographic technique like MAC and digital signatures to protect information against spoofing and forgeries. |
| It follows same approach with some terms like ciphertext, plaintext, and cipher. | It has symmetric and asymmetric version with concept of shared and non-shared key. |
| It is useful to modern data security such as digital signatures and protect sensitive electronic data such as emails and passwords. | It is useful in electronic commerce, military communications, chip-based card payments, digital currencies, time stamping, etc. |