Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Fassara: Ko da yake ainihin kalmar "cryptanalysis" ba ta daɗe ba (William Friedman ne ya ƙirƙira ta a 1920), hanyoyin fasa lambobin da ciphers sun daɗe sosai. Bayani na farko da aka rubuta game da cryptanalysis an ba da shi ne daga masanin ilimin Larabawa na ƙarni na 9, Al-Kindi (wanda aka fi sani da "Alkindus" a Turai), a cikin Rubuce-rubucen kan deciphering Cryptographic Messages. Wannan rubutun ya haɗa da bayanin hanyar nazarin mita (Ibrahim Al-Kadi, 1992- ref-3). Masanin Italiyanci Giambattista della Porta shine marubucin wani aiki na asali akan cryptanalysis "De Furtivis Literarum Notis".Binciken mita shine kayan aiki na asali don karya mafi yawan ciphers na gargajiya. A cikin harsunan halitta, wasu haruffa na haruffa sun bayyana sau da yawa fiye da wasu; a Turanci, "E" yana iya zama harafin da ya fi kowa a cikin kowane samfurin rubutu. Hakazalika, digraph "TH" shine mafi yawan haruffa a cikin Turanci, da sauransu. Binciken yawanci ya dogara ne akan ɓoyewa wanda ya kasa ɓoye waɗannan ƙididdigar. Misali, a cikin sauƙin sauyawa na sauyawa (inda aka maye gurbin kowane harafi da wani), harafin da ya fi yawa a cikin rubutun cipher zai zama ɗan takarar "E". Saboda haka bincike na irin wannan cipher yana da sauƙi, idan dai ciphertext yana da tsayi sosai don bayar da ƙididdigar wakilci na haruffan haruffan da ya ƙunshi.A Turai a cikin ƙarni na 15 da 16, ra'ayin da aka yi na polyalphabetic maye gurbin cipher an ci gaba, a tsakanin wasu da jami'in diflomasiyyar Faransa Blaise de Vigenère (1523<unk>96). Kimanin ƙarni uku, ana ɗaukar cipher na Vigenère, wanda ke amfani da maɓallin maimaitawa don zaɓar haruffa daban-daban na ɓoyewa a cikin juyawa, a matsayin mai cikakken aminci (le chiffre indéchiffrable<unk>" cipher wanda ba za a iya fassara shi ba "). Duk da haka, Charles Babbage (1791<unk>1871) kuma daga baya, da kansa, Friedrich Kasiski (1805<unk>81) sun yi nasarar karya wannan cipher. A lokacin yakin duniya na daya, masu kirkiro a kasashe da dama sun kirkiro na'urori masu amfani da na'ura irin su Arthur Scherbius' Enigma, a kokarin rage...  Tambaya: Wanene ya kirkiro kalmar cryptanalysis?
William Friedman