Decoding the World of Encryption: Practical Implementation of Five Common Encryption Algorithms in Python

In today’s digital age, data security has become a critical issue. Encryption algorithms serve as key tools for protecting data security and play an indispensable role in the field of information security. This article will introduce five common encryption algorithms (AES, DES, RSA, MD5, SHA-256).

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Introduction to Five Common Encryption Algorithms

[1] AES Encryption Algorithm: The Advanced Encryption Standard (AES) is a symmetric encryption algorithm that offers high security and wide applicability. It supports key lengths of 128, 192, and 256 bits, making it suitable for encrypting various types of data.

[2] DES Encryption Algorithm: The Data Encryption Standard (DES) is an earlier symmetric encryption algorithm. Although its security is relatively low, it is still used in some specific scenarios.

[3] RSA Encryption Algorithm: RSA is an asymmetric encryption algorithm suitable for digital signatures, key exchanges, and other scenarios. It is based on the difficulty of factoring large numbers in number theory, providing a high level of security.

[4] MD5 Hash Algorithm: MD5 is a hash algorithm used to generate a hash value for data. Although it is no longer considered secure, it is still used in some scenarios to verify data integrity.

[5] SHA-256 Hash Algorithm: SHA-256 is a secure hash algorithm that generates a 256-bit hash value, offering higher security than MD5. It is widely used in data integrity verification and digital signatures.

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