小型CA系统.数字证书制作超酷工具，还可以对数据加解密、还能实现数据在网络上的安全传输。-Small-scale CA system. Making cool tools for a digital certificate, you can also encrypt and decrypt the data, but also on the network data secure transmission.

Aes CryptoSystem Describing how to encrypt and decrypt an input , using a key.

* Class to encrypt and decrypt Rot-13 messages. * Single characters are encoded by rotating the ASCII code for the specific character. * A string of text can be encrypted and decrypted by rotating the ASCII code for the specific text and is

This project presents a novel Multi-message Ciphertext Policy Attribute-Based Encryption (MCP-ABE) technique, and employs the MCP-ABE to design an access control scheme for sharing scalable media based on data consumers’ attributes (e.g., age, nati