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| Kryptanaliza różnicowa× | HMAC× | Kryptanaliza liniowa× | Kryptosystem RSA× | |
|---|---|---|---|---|
| Dziedzina | Kryptografia | Kryptografia | Kryptografia | Kryptografia |
| Rodzina | Machine learning | Machine learning | Machine learning | Machine learning |
| Rok powstania≠ | 1990 | 1997 | 1993 | 1978 |
| Twórca≠ | Eli Biham | Hugo Krawczyk | Mitsuru Matsui | Ronald Rivest |
| Typ≠ | statistical attack on block ciphers | cryptographic authentication mechanism | linear approximation attack | asymmetric encryption algorithm |
| Źródło pierwotne≠ | Biham, E., & Shamir, A. (1990). Differential cryptanalysis of DES-like cryptosystems. In Advances in Cryptology - CRYPTO 1990, LNCS 537, pp. 2-21. DOI ↗ | Krawczyk, H., Bellare, M., & Crechanko, R. (1997). HMAC: Keyed-Hashing for Message Authentication. RFC 2104. link ↗ | Matsui, M. (1993). Linear cryptanalysis method for DES cipher. In Advances in Cryptology - EUROCRYPT 1993, LNCS 765, pp. 386-397. DOI ↗ | Rivest, R. L., Shamir, A., & Adleman, L. (1978). A method for obtaining digital signatures and public-key cryptosystems. Communications of the ACM, 21(2), 120-126. DOI ↗ |
| Inne nazwy≠ | differential attack, differential path, differential probability | HMAC, keyed hash function | linear attack, linear approximation, piling-up lemma | RSA encryption, RSA public-key cryptography |
| Pokrewne≠ | 3 | 3 | 3 | 4 |
| Podsumowanie≠ | 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. | HMAC (Hash-Based Message Authentication Code) is a cryptographic algorithm for authenticating messages using a secret key and a hash function. Standardized in RFC 2104 (1997), HMAC can be combined with any cryptographic hash function (SHA-256, SHA-3, etc.) to create a message authentication code (MAC). HMAC provides both data integrity and authentication, detecting both accidental corruption and deliberate tampering, and is widely used in web security (TLS/SSL), API authentication, and network protocols. | 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. | RSA is a foundational public-key cryptosystem developed by Rivest, Shamir, and Adleman in 1978. It enables secure encryption and digital signatures by using a pair of mathematically linked keys: a public key for encryption and a private key for decryption. RSA's security relies on the computational difficulty of factoring large composite numbers into their prime factors. |
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