简介

pycrypto、pycrytodome和crypto是一个东西，crypto在python上面的名字是pycrypto，它是一个第三方库，但是已经停止更新三年了，所以不建议安装这个库；
这个时候pycryptodome就来了，它是pycrypto的延伸版本，用法和pycrypto是一模一样的。

安装方法

  1. pip install pycryptodome

使用文档

https://pycryptodome.readthedocs.io/

Package Description
Crypto.Cipher Modules for protecting confidentiality that is, for encrypting and decrypting data (example: AES).
Crypto.Signature Modules for assuring authenticity, that is, for creating and verifying digital signatures of messages (example: PKCS#1 v1.5).
Crypto.Hash Modules for creating cryptographic digests (example: SHA-256).
Crypto.PublicKey Modules for generating, exporting or importing public keys (example: RSA or ECC).
Crypto.Protocol Modules for faciliting secure communications between parties, in most cases by leveraging cryptograpic primitives from other modules (example: Shamir’s Secret Sharing scheme).
Crypto.IO Modules for dealing with encodings commonly used for cryptographic data (example: PEM).
Crypto.Random Modules for generating random data.
Crypto.Util General purpose routines (example: XOR for byte strings).