Σύγκριση μεθόδων

	HMAC	Ανάλυση Μόλυνσης Δεδομένων
Πεδίο	Κρυπτογραφία	Κρυπτογραφία
Οικογένεια	Machine learning	Machine learning
Έτος προέλευσης	1997	2005
Δημιουργός	Hugo Krawczyk	James Newsome
Τύπος	cryptographic authentication mechanism	data flow tracking technique
Θεμελιώδης πηγή	Krawczyk, H., Bellare, M., & Crechanko, R. (1997). HMAC: Keyed-Hashing for Message Authentication. RFC 2104.	Newsome, J., & Song, D. X. (2005). Dynamic taint analysis for automatic detection, analysis, and signature generation of exploits on commodity software. In Network and Distributed System Security Symposium (NDSS 2005).
Εναλλακτικές ονομασίες	HMAC, keyed hash function	taint analysis, information flow, data tainting
Συναφείς	3	3
Σύνοψη	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.	Taint analysis is a data flow analysis technique that tracks how untrusted (tainted) input flows through a program to identify vulnerabilities where tainted data reaches dangerous operations (sinks). Formalized by Newsome and Song in 2005, taint analysis marks input data as tainted and propagates taint labels through the program, alerting when tainted data reaches sensitive operations like SQL queries or system calls. Taint analysis is fundamental to detecting injection vulnerabilities and is widely used in dynamic analysis tools and security monitoring systems.