SHA-2

SHA-2 (Secure Hash Algorithm 2) — kriptografik algoritmlar oilasi. AQSh Milliy xavfsizlik agentligi (Andoza:Lang-en, NSA) tomonidan 2001-yilda ishlab chiqilgan.

    $\mathrm{Ch}(E,F,G)=(E\wedge F)\oplus (\mathrm{\neg }E\wedge G)$
    $\mathrm{Ma}(A,B,C)=(A\wedge B)\oplus (A\wedge C)\oplus (B\wedge C)$
    ${\mathrm{\Sigma }}_0(A)=(A⋙2)\oplus (A⋙13)\oplus (A⋙22)$
    ${\mathrm{\Sigma }}_1(E)=(E⋙6)\oplus (E⋙11)\oplus (E⋙25)$

Havolalar

• SHA-256, SHA-384 va SHA-512 tavsiflari
• SHA-2 tekshirgich