Cipher Challenge
The Indecipherable Cipher
Vigenère cipher. Adapted from Wikipedia's “Vigenère cipher” history section under CC BY-SA 4.0; changes were made.
Ciphertext
Hye uowkwvm seuoru bls ticnii vsk tayriu Dmuvnèek fvombj wvzl jmzsiay jmwnifvng ormmrhfrf. Gvfcrr 1467, Cebt Frbxwjtn Gpsmvhz drygiqfsu a zkxrt hwjk gnek ipzfwrj e nzmhvr gu gyiruv cvvlvz ezghnhika. Ncyaatij Bvwkhrsmla pokee gviiruvd fnmwbir rlcnesmxg zn n zescpo iepze. Zv 1553, Kwfvnt Frbxwjtn Hictegf aqjiu i vsgenzmeo gclngkvjqkb khnz wvtiqkeq g rve ezghnhik nsf vapn pvbxsi, mnqmeo mh grnixzkez ko pneeoi hye cgxkmvb sy nmvvmmbx oa g wywvh noej si xlfrsr. Hprqws ue Iokvvèvs guormjpir r dvljvzibk ahzsbmc gpsgkq zv 1586, csk nvtikmibkh-pkrkcvm nrvziia ehkapniu pmg eazk xf Jizcafu'w imtsrtvtk-bmc rvsvmr. Wwv qvngavzmw hye ekwltxweg potymv sejbeiu i jcimvjesti fvphzekqsb. Cejow Tivffly iectir zt htfimeyrbyk, eel Wqzeazmwqg Odeeogrv whzly jijkvwseq ox ra magofymsti hf tegrjtehv ia 1917. Zlrb vsguggxzwr glriozvl ijvn gnslol Qyaerij Jepsatk lrl tfzvnzicg fffkrt e mivwrng or kpi bznrzivvxv teazyig ebu Feoiuzmqy Knymjsm zrtrx tljpwjhrj e xmrsiay gxkigy. Ieckekmh uiohvw zv e zfnt imgpifkekz grv vsmenr hzaxoecry vvtehvd gu xym ospwbxh cmrukh; btgv bls kekz mj lmjzdrj fp blok prxmfl, ioth puplur pvgvtw kw vsjezhpv i wwdpykv jpmtkeq gpgpepvt. Purwmhsiagk jfzgsj ufkh tqtvvr qowba ebu a fsect wsk os qip xlfrsry hlzmbx tuk Edmvwtaa Immqp Krr, oax Lvmce rrghvzw fvghreitc fvcbbiimh hyevx qvawoxef.