Five and eight

Medium–hard. Affine cipher. E(x) = (5x + 8) mod 26. A=0.

CipherSunday 30 August 2026

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A=0 through Z=25. You multiply by 5, add 8, wrap at 26. Spaces stay honest.

GCCF ZRC LWMRZU AV

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Five and eight — The Gold Standard