SHA-2

SHA-2 (Secure Hash Algorithm 2) — kriptografik algoritmlar oilasi. AQSh Milliy xavfsizlik agentligi (inglizcha: National Security Agency, NSA) tomonidan 2001-yilda ishlab chiqilgan.

    $\operatorname {Ch} (E,F,G)=(E\land F)\oplus (\neg E\land G)$
    $\operatorname {Ma} (A,B,C)=(A\land B)\oplus (A\land C)\oplus (B\land C)$
    $\Sigma _{0}(A)=(A\!\ggg \!2)\oplus (A\!\ggg \!13)\oplus (A\!\ggg \!22)$
    $\Sigma _{1}(E)=(E\!\ggg \!6)\oplus (E\!\ggg \!11)\oplus (E\!\ggg \!25)$

Havolalar

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