So sánh phương pháp

	Phân tích mật mã vi sai	Phân tích kênh phụ (Side-Channel Analysis)
Lĩnh vực	Mật mã học	Mật mã học
Họ	Machine learning	Machine learning
Năm ra đời	1990	1996
Người khởi xướng	Eli Biham	Paul Kocher
Loại	statistical attack on block ciphers	physical side-channel exploitation
Công trình gốc	Biham, E., & Shamir, A. (1990). Differential cryptanalysis of DES-like cryptosystems. In Advances in Cryptology - CRYPTO 1990, LNCS 537, pp. 2-21.	Kocher, P. C. (1996). Timing attacks on implementations of Diffie-Hellman, RSA, DSS, and other systems. In Advances in Cryptology - CRYPTO 1996, LNCS 1109, pp. 104-113.
Tên gọi khác	differential attack, differential path, differential probability	SCA, timing attack, power analysis, cache attack
Liên quan	3	3
Tóm tắt	Differential cryptanalysis is a statistical attack technique on symmetric block ciphers that analyzes differences in inputs and outputs to recover secret keys. Introduced by Eli Biham and Adi Shamir in 1990, differential cryptanalysis was the first practical attack on DES that outperformed brute force search. The technique exploits non-random properties of cipher transformations by studying how small changes in plaintext propagate through the cipher rounds. Differential cryptanalysis has shaped cipher design for three decades.	Side-channel analysis is a family of attacks that exploit physical properties of cryptographic implementations (timing, power consumption, electromagnetic emissions, cache behavior) to recover secret keys. Introduced by Paul Kocher in 1996, side-channel attacks have repeatedly broken implementations of theoretically secure cryptosystems by leveraging unintended information leakage. Side-channel analysis has become a critical concern in cryptographic system design, requiring constant-time implementations and physical countermeasures.