I am part of a group of adults, a cipher club who like to decode random ciphers, from texts to symbols and other things. We were presented with a set of 5 ciphered text, and we have managed to crack 3 of them however these 2 we have been puzzling over for a while now. Ive tried so many different types of ciphers and cipher decoders, I've tried to use the index of coincidence but no luck there either, I was wondering if anyone could give any pointers to what ciphers these 2 strings are encoded in:
String 1 EIKIEGTNEFEATFGHSLLXRPLTGLADYMTUTBEAGNUTRBTQGZKGGHXETFEICAIDFGTUFRTFADQHEILECUKTTBTFPTCMUZUCIKCLIUXLQCQTCLGUGHXETFNHXETKEIAZXFELXBKOEHLXAXCGNTYQHOLXHZTKTFDKOTFQCLRTMICHDFGLACISRLELMXRFXBXLEATFLTBTRONCLGQXHQGHPTFEHCQYKIDODOKIHCOPETHOGTLGMKETERFBPLRHRLTHHTAOKIBNETHCHOFDAGHFLETFIMMBELEATFEITZAGXHUTSCZSVIFGTULETFDOHOLXFEVKOLFRRFQHKGUHRLNIMXQSCAKTKNFENGFQCWLETFRPLTGL
String 2
[CIPHERTEXTSTARTS]HI wsndtonInehbihs if at t iyoncniegtrf .e noionbpni y,iu.w ahoui hs hroyh!euecsy m.ot ew hrc hb;ntsresnmdma ipMsat ln ts , ryiceg ensh c n byr t k t oe de uhw stiytoer s eevlde utln a lerytkhhte ae srdaBry,etyofattu.ttd t?ybor ubeusf elog oentiyrueeruuuemcndu ’naIlaow ystal nta.mAy dt ddin aoa,’une yeof hct dsirnetso lruohwpo ctoioa oyif awtowsrdupttep nm aIraulnhiebW ynoi[CIPHERTEXTENDS]