nx_base64_extvec_gate.nx

nx_base64_extvec_gate.nx -- EIGHTH provably third-party-validated claim, and the first OUTSIDE cryptography: Base64 vs RFC 4648 section 10. ★A FIFTH VECTOR DIALECT. The previous seven gates read hex in four different layouts; RFC 4648 states its vectors as QUOTED ASCII: BASE64("") = "" BASE64("f") = "Zg==" BASE64("foobar") = "Zm9vYmFy" No hex reader touches this. ★The recurring lesson of this session, once more: there is no general parser, only one proven against the section in front of you. Construction unchanged from the other seven: nothing expected appears in this source, the document is pinned to a digest nx_vecfetch computed IN-PROCESS AT THE SOCKET, and every input AND output below is read out of that pinned document at run time. ★THE EMPTY-STRING VECTOR IS KEPT DELIBERATELY. BASE64("") = "" is the case an encoder is most likely to get wrong (a stray pad, a spurious byte) and the one a hand-written test is most likely to omit. The authority published it; we do not get to skip it. license_tier: ORIGINAL expect_exit: 0