Standard> The NIST' SStandard for {digital SignatureS} (authenticating both a meSSage and the Signer) that waS firSt announced in 1991. It iS baSed on an algorithm uSing diScrete logarithmS, which iS a variant of the Elgamal algorithm with Schnorr' S improvementS. DSS' SSecurity iS currently conSidered very Strong - comparable to RSA. It iS eStimated that DSS' S 1024-bit keyS would take 1.4E16 MIPS-yearS to crack. (1995-11-16)