So sánh phương pháp

	AES (Rijndael)	Phân tích mật mã tuyến tính
Lĩnh vực	Mật mã học	Mật mã học
Họ	Machine learning	Machine learning
Năm ra đời	2001	1993
Người khởi xướng	Joan Daemen	Mitsuru Matsui
Loại	symmetric encryption algorithm	linear approximation attack
Công trình gốc	Daemen, J., & Rijmen, V. (2002). The Design of Rijndael: AES - The Advanced Encryption Standard. Springer-Verlag. ISBN: 978-3540425809	Matsui, M. (1993). Linear cryptanalysis method for DES cipher. In Advances in Cryptology - EUROCRYPT 1993, LNCS 765, pp. 386-397.
Tên gọi khác	Rijndael, AES encryption, FIPS 197	linear attack, linear approximation, piling-up lemma
Liên quan	4	3
Tóm tắt	The Advanced Encryption Standard (AES), also known as Rijndael, is a symmetric block cipher adopted as the official encryption standard by the U.S. government in 2001. It processes data in 128-bit blocks using 128, 192, or 256-bit keys and performs multiple rounds of substitution, permutation, and mixing operations. AES is the most widely used symmetric encryption algorithm today, securing everything from government communications to everyday internet traffic.	Linear cryptanalysis is a known-plaintext attack that exploits linear approximations of a cipher's non-linear transformations to recover secret key bits. Introduced by Mitsuru Matsui in 1993, linear cryptanalysis provides practical attacks on ciphers like DES with computational complexity less than brute force. The technique analyzes statistical biases in how linear combinations of plaintext and ciphertext bits relate to key bits, enabling key recovery with reduced data requirements.