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	RSA暗号方式の分析	SHAハッシュ関数
分野	暗号学	暗号学
系統	Process / pipeline	Process / pipeline
提唱年	1978	1993
提唱者	Ronald Rivest, Adi Shamir, Leonard Adleman	National Institute of Standards and Technology (NIST)
種類	Asymmetric encryption and signature algorithm	One-way hash algorithm
原典	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.	National Institute of Standards and Technology (1993). Secure Hash Standard (SHS). Federal Information Processing Standards (FIPS) Publication 180.
別名	RSA Analysis, Rivest–Shamir–Adleman Analysis	SHA-1, SHA-256, SHA-512, Secure Hash Algorithm
関連	4	4
概要	RSA (Rivest–Shamir–Adleman) is a foundational asymmetric cryptosystem introduced in 1978 that enables both encryption and digital signatures using a pair of public and private keys. It remains one of the most widely deployed cryptographic algorithms in modern security infrastructure, supporting secure communication and authentication across the internet.	The Secure Hash Algorithm (SHA) is a family of cryptographic hash functions standardized by NIST starting in 1993. SHA functions produce fixed-length digests from arbitrary-length input data, serving as a fundamental building block for digital signatures, message authentication, and data integrity verification across security-critical applications.