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Math Help - Cryptography (Hill + Playfair) For anyone who loves a challenge, I need some brains

  1. #1
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    Question Cryptography (Hill + Playfair) For anyone who loves a challenge, I need some brains

    Hello, I have been given a message encrypted with the hill cipher using a 2x2 matrix and have to try and recover both the plaintext and the matrix used. If anyone could help me at all with this I would be very grateful as I haven't succeeded in returning any of the plaintext so far and have resorted to brute force which coincidentally also isn't getting me anywhere.

    Cipher: 2x2 matrix
    Ciphertext: C mqwrmwcuf nzbuwj xrrkuf kgzk ycdsuhapxlel nvnd qw w cnzqowg nvnd samixxrb fyacmv, kgzk zkw ronapxlel lr aoqcm joqs gyhsrnpqoskbg and aarankwel lnqo. Apsfwbxlah qw ahi yey lr fsonwer bmoh soty, bod kyfvf rlboqb qcqa chq arsuzhoxo ffbft qw elayqe zks tqwo lnxn d nzbuwj zksij lmohc fzsfwbr bmoh sxxfv. An elfhncotkzk ko pq mlrft ell nr hmod uepqu ah s rcoonq ustfvz jkebt ykskzkare bgou Fldlcgr, zbb wnxp pacdf fuqcxlbt yasb ezmod nstxzss fskpuhst lr lbb wgka c ffgm ot yasb nvnd. Lbs, pquacjrfbdh nxfv ycsk wz kgzk o txfhs wjxlah zkot qzfndh zky dqul rl konv tslhco. Pfbsv euopco, zpliuf "Ezmod Nfouffzd", hrmoxq bepqu arlr vzw jsisso pnxp pqcl ew ecgxpfrl wqhslm wsa. Xrfda wft arxzkersq ermox mfap rmwcuf ar u Dldlcgr-opexq heffzv, loxl lfr nbbi opsluf ah yasb lnaoz gsrh yxxfv, mfepo vfb onfbx xq oapb wo nfb ezmox. Dr hmor awplrx jq olrfdr, lmo kewvrx fzfdfh zkw elnun nbbi qz yasb nvnd anb ofb zksix re hqhv zoxn x nxhs fmkzq hevl nv saxy. Gfr fsyvfdi coxb qfb euopco qw zkot qcstc iqcn dvveyy xy qryark kl bhsst lr wcssqo zkkkd uepqu, zbn Qan Zaana, q ftsasrmvst ot zkw Exffrsa Wcudcoy ad Bkwapssi sll fbjouf fzfvlnj Dlnun Mdfthyst, awqe zkqw ymb'g fl an qwmqq hsl lnbt qs yuxpfd arfhncov flycskm qxpmcoxmow. Ylnun Mdfthyst mifgaproi islqk kgzk Udyva Csfyvot Ftudst anl Jffl Bdowgy dod Zaanq ieyk ej fmohc fl ackerx fl gzfhhquf lxz jsa kgzk onfbh swwcwapd vqzvzsrm. Ji yepj oftsabg zkq uqefha gb wfb Faahxlst qz Ycwvodst Wysijpa chq Fhmvlblneo ycdsstapss ar Mvanqinx, Mvare lotst zkqw yubgn.X

    Thank every so much for your time
    Kay xxx
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  2. #2
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    Re: Cryptography (Hill + Playfair) For anyone who loves a challenge, I need some brai

    It begins: "A misplaced laptop filled with confidential data...".

    The deciphering matrix is:

    1 2
    19 13
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