The ciphertext for the 'hertz' picoCTF 2018 challenge.

hertz_picoCTF.txt

-------------------------------------------------------------------------------
swbjkfga nxkx ua ywrk vhfj - areagugrguwb_sucnxka_fkx_awhifehx_qqcyujkrxe
-------------------------------------------------------------------------------
"zxhh, ckubsx, aw jxbwf fbt hrssf fkx bwz drag vfquhy xagfgxa wv gnx
erwbfcfkgxa. erg u zfkb ywr, uv ywr twbg gxhh qx gnfg gnua qxfba zfk,
uv ywr aguhh gky gw txvxbt gnx ubvfquxa fbt nwkkwka cxkcxgkfgxt ey gnfg
fbgusnkuag-u kxfhhy exhuxix nx ua fbgusnkuag-u zuhh nfix bwgnubj
qwkx gw tw zugn ywr fbt ywr fkx bw hwbjxk qy vkuxbt, bw hwbjxk qy
'vfugnvrh ahfix,' fa ywr sfhh ywrkaxhv! erg nwz tw ywr tw? u axx u
nfix vkujngxbxt ywr-aug twzb fbt gxhh qx fhh gnx bxza."

ug zfa ub drhy, 1805, fbt gnx acxfoxk zfa gnx zxhh-obwzb fbbf cfihwibf
asnxkxk, qfut wv nwbwk fbt vfiwkugx wv gnx xqckxaa qfkyf vxtwkwibf.
zugn gnxax zwkta anx jkxxgxt ckubsx ifauhu orkfjub, f qfb wv nujn
kfbo fbt uqcwkgfbsx, znw zfa gnx vukag gw fkkuix fg nxk kxsxcguwb. fbbf
cihwibf nft nft f swrjn vwk awqx tfya. anx zfa, fa anx afut, arvvxkubj
vkwq hf jkuccx; jkuccx exubj gnxb f bxz zwkt ub ag. cxgxkaerkj, raxt
wbhy ey gnx xhugx.

fhh nxk ubiugfguwba zugnwrg xlsxcguwb, zkuggxb ub vkxbsn, fbt txhuixkxt
ey f asfkhxg-huixkuxt vwwgqfb gnfg qwkbubj, kfb fa vwhhwza:

"uv ywr nfix bwgnubj exggxk gw tw, swrbg (wk ckubsx), fbt uv gnx
ckwacxsg wv acxbtubj fb xixbubj zugn f cwwk ubifhut ua bwg gww gxkkuehx,
u anfhh ex ixky snfkqxt gw axx ywr gwbujng exgzxxb 7 fbt 10 fbbxggx
asnxkxk."

"nxfixba! znfg f iukrhxbg fggfso!" kxchuxt gnx ckubsx, bwg ub gnx
hxfag tuaswbsxkgxt ey gnua kxsxcguwb. nx nft drag xbgxkxt, zxfkubj fb
xqekwutxkxt swrkg rbuvwkq, obxx ekxxsnxa, fbt anwxa, fbt nft agfka wbnua ekxfag fbt f axkxbx xlckxaauwb wb nua vhfg vfsx. nx acwox ub gnfg
kxvubxt vkxbsn ub znusn wrk jkfbtvfgnxka bwg wbhy acwox erg gnwrjng, fbtzugn gnx jxbghx, cfgkwbumubj ubgwbfguwb bfgrkfh gw f qfb wv uqcwkgfbsx
znw nft jkwzb wht ub awsuxgy fbt fg swrkg. nx zxbg rc gw fbbf cihwibf,ouaaxt nxk nfbt, ckxaxbgubj gw nxk nua efht, asxbgxt, fbt anububj nxft,
fbt swqchfsxbghy axfgxt nuqaxhv wb gnx awvf.

"vukag wv fhh, txfk vkuxbt, gxhh qx nwz ywr fkx. axg ywrk vkuxbt'a
qubt fg kxag," afut nx zugnwrg fhgxkubj nua gwbx, exbxfgn gnx
cwhugxbxaa fbt fvvxsgxt ayqcfgny wv znusn ubtuvvxkxbsx fbt xixb ukwby
swrht ex tuasxkbxt.