Asymmetric Algorithm

Understanding the DES Encryption Algorithm

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Understanding the DES Encryption Algorithm

Notes on Learning the DES Algorithm DES (Data Encryption Standard) is a classic symmetric encryption algorithm developed by IBM and adopted by the U.S. National Bureau of Standards in 1977. It uses a fixed-length 56-bit key to encrypt 64-bit data blocks, transforming plaintext into ciphertext through a series of complex permutations and substitutions. This is … Read more

Understanding RSA Algorithm Principles (Part 1)

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Understanding RSA Algorithm Principles (Part 1)

If you ask me, which algorithm is the most important? I might answer “Public Key Encryption Algorithm“. Because it is the cornerstone of computer communication security, ensuring that encrypted data cannot be cracked. You can imagine the consequences if credit card transactions are compromised. Before getting into the main topic, let me briefly introduce what … Read more