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| SHAハッシュ関数× | 対称鍵暗号解読 (Symmetric Key Cryptanalysis)× | |
|---|---|---|
| 分野 | 暗号学 | 暗号学 |
| 系統 | Process / pipeline | Process / pipeline |
| 提唱年≠ | 1993 | 1991 |
| 提唱者≠ | National Institute of Standards and Technology (NIST) | Eli Biham, Adi Shamir, Mitsuru Matsui |
| 種類≠ | One-way hash algorithm | Cryptographic strength analysis |
| 原典≠ | National Institute of Standards and Technology (1993). Secure Hash Standard (SHS). Federal Information Processing Standards (FIPS) Publication 180. link ↗ | Biham, E., & Shamir, A. (1991). Differential cryptanalysis of DES. Journal of Cryptology, 4(1), 3–72. link ↗ |
| 別名≠ | SHA-1, SHA-256, SHA-512, Secure Hash Algorithm | Symmetric Cryptanalysis, Block Cipher Analysis, Stream Cipher Cryptanalysis |
| 関連≠ | 4 | 3 |
| 概要≠ | 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. | Symmetric key cryptanalysis is the study of attacks against symmetric encryption algorithms (such as DES, AES, and stream ciphers) to evaluate their security and identify weaknesses. Classical techniques include differential cryptanalysis and linear cryptanalysis, which have shaped the design of modern ciphers and remain essential tools for cryptographers assessing algorithm robustness. |
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