Hash-Based Message Authentication Code
HMAC hufanya kazi kwa kuingiza ufunguo wa siri katika hesabu ya kukokotoa kwa njia maalum ambayo inazuia washambuliaji kughushi misimbo ya uthibitishaji. Badala ya kuunganisha tu ufunguo na ujumbe na kukokotoa, HMAC hutumia operesheni mbili za kukokotoa zilizofungwa na maadili ya kujaza yaliyotokana na ufunguo (ipad na opad). Muundo huu wa kukokotoa mara mbili huhakikisha kwamba hata kama mshambuliaji anaweza kupata migongano ya kukokotoa, hawawezi kughushi HMAC halali bila kujua ufunguo wa siri.
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Vyanzo
- Krawczyk, H., Bellare, M., & Crechanko, R. (1997). HMAC: Keyed-Hashing for Message Authentication. RFC 2104. link ↗
- Bellare, M., Canetti, R., & Krawczyk, H. (1996). Keying hash functions for message authentication. In Advances in Cryptology - CRYPTO 1996, LNCS 1109, pp. 1-15. DOI: 10.1007/3-540-68697-5_1 ↗
Jinsi ya kunukuu ukurasa huu
ScholarGate. (2026, June 3). Hash-Based Message Authentication Code. ScholarGate. https://scholargate.app/sw/cryptography/hmac
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
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- Uchambuzi wa TofautiKriptografia↔ compare
- Mfumo wa Usimbaji fiche wa RSAKriptografia↔ compare
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