Vajad kellegagi rääkida?
Küsi julgelt abi LasteAbi
Logi sisse
Sulge

"transpositions" - 2 õppematerjali

Algoritmide ja andmestruktuuride praktikum
17
doc

Algoritmide ja andmestruktuuride praktikum

k = sv[i]; for(;k>0;k--){ v[j] = i + min; j++; } } //prindime uue hulga välja printf("n sorditud: n"); for(i=0;itranspositions" järgi ja siis ise murrab ka selle. Lahendus #include//kodeerib ja hiljem murrab 5. okt 2009 #include #include #include char alg_text[80],sala_text[80],kas_text[80],arv[1],jah[1]; int i,j,k,m,n,a; div_t J; void krypteeri(int ra,int len){ if((len/ra)!=0){ //kui pole õige pikkuseda lisame nulle lõppu int vah = ((len/ra)+1)*ra; for(i=len;i

Informaatika → Algoritmid ja andmestruktuurid
175 allalaadimist
TheCodeBreakers
946
pdf

TheCodeBreakers

lieutenant, Reino Hayhanen. The system dispensed with written keys such as Abel's one-time pad, which helped incriminate him. Hayhanen had to remember only four basic keys—SNEGOPA(D), the first 20 letters of a Russian popular song ("The Lone Accordion"), the date of the World War II victory over Japan (3/9/1945, in the Continental style), and his personal keynumber (13, changed to 20 in 1956). The latter three keys generated the keys for two transpositions and the coordinates of a straddling checkerboard through a process that was complicated but that possessed a kind of tractive logic, was meant to be memorized, and probably would be after two or three run-throughs. This process injected an arbitrary five-digit number at the very beginning of the key derivation, strongly influencing the end result. (This number was also inserted in a predetermined position in the cryptogram so that the decipherer would have it

Informaatika → krüptograafia
15 allalaadimist


Sellel veebilehel kasutatakse küpsiseid. Kasutamist jätkates nõustute küpsiste ja veebilehe üldtingimustega Nõustun