Σύγκριση μεθόδων

	Κρυπτοσύστημα RSA	AES (Rijndael)	HMAC
Πεδίο	Κρυπτογραφία	Κρυπτογραφία	Κρυπτογραφία
Οικογένεια	Machine learning	Machine learning	Machine learning
Έτος προέλευσης	1978	2001	1997
Δημιουργός	Ronald Rivest	Joan Daemen	Hugo Krawczyk
Τύπος	asymmetric encryption algorithm	symmetric encryption algorithm	cryptographic authentication mechanism
Θεμελιώδης πηγή	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.	Daemen, J., & Rijmen, V. (2002). The Design of Rijndael: AES - The Advanced Encryption Standard. Springer-Verlag. ISBN: 978-3540425809	Krawczyk, H., Bellare, M., & Crechanko, R. (1997). HMAC: Keyed-Hashing for Message Authentication. RFC 2104.
Εναλλακτικές ονομασίες	RSA encryption, RSA public-key cryptography	Rijndael, AES encryption, FIPS 197	HMAC, keyed hash function
Συναφείς	4	4	3
Σύνοψη	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.	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.	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.