השוואת שיטות

	קריפטואנליזה לינארית	AES (Rijndael)
תחום	קריפטוגרפיה	קריפטוגרפיה
משפחה	Machine learning	Machine learning
שנת המקור	1993	2001
הוגה השיטה	Mitsuru Matsui	Joan Daemen
סוג	linear approximation attack	symmetric encryption algorithm
מקור מכונן	Matsui, M. (1993). Linear cryptanalysis method for DES cipher. In Advances in Cryptology - EUROCRYPT 1993, LNCS 765, pp. 386-397.	Daemen, J., & Rijmen, V. (2002). The Design of Rijndael: AES - The Advanced Encryption Standard. Springer-Verlag. ISBN: 978-3540425809
כינויים	linear attack, linear approximation, piling-up lemma	Rijndael, AES encryption, FIPS 197
קשורות	3	4
תקציר	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.	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.