谢希仁版计算机网络本科教材倒数第二章的课后第一题
kfd ktbd fzm eubd kfd pzyiom mztx ku kzyg ur bzha kfthcm
ur mftnm zhx mfudm zhx mdzythc pzq ur ezsszcdm zhx gthcm
zhx pfa kfd mdz tm sutythc fuk zhx pfdkfdi ntcm fzld pthcm
sok pztk z stk kfd uamkdim eitdx sdruid pd fzld uoi efzk
rui mubd ur om zid uok ur sidzkf zhx zyy ur om zid rzk
hu foiia mztx kfd ezindhkdi kfda kfzhgdx ftb boef rui kfzk
准备：单字母高频统计表
Frequencies of the letters in the English language E 12.51% T 9.25 A 8.04 O 7.60 I 7.26 N 7.09 S 6.54 R 6.12 H 5.49 L 4.14 D 3.99 C 3.06 U 2.71 M 2.53 F 2.30 P 2.00 G 1.96 W 1.92 Y 1.73 B 1.54 V 0.99 K 0.67 X 0.19 J 0.16 Q 0.11 Z 0.09
The most common first letter in a word in order of frequency T, O, A, W, B, C, D, S, F, M, R, H, I, Y, E, G, L, N, O, U, J, K
The most common second letter in a word in order of frequency
H, O, E, I, A, U, N, R, T
The most common third letter in a word in order of frequency
E, S, A, R, N, I
The most common last letter in a word in order of frequency
E, S, T, D, N, R, Y, F, L, O, G, H, A, K, M, P, U, W
More than half of all words end with
E ,T, D, S
Letters most likely to follow E in order of frequency
R,S,N,D
The most common digraphs on order of frequency
TH, HE, AN, IN, ER, ON, RE, ED, ND, HA, AT, EN, ES, OF, NT, EA, TI, TO, IO, LE, IS, OU, AR, AS, DE, RT, VE
The most common trigraphs in order of frequency
THE, AND, THA, ENT, ION, TIO, FOR, NDE, HAS, NCE, TIS, OFT, MEN
The most common double letters in order of frequency
SS, EE, TT, FF, LL, MM, OO
The most common two-letter words in order of frequency
of, to, in, it, is, be, as, at, so, we, he, by, or, on, do, if, me, my, up, an, go, no, us, am
The most common three-letter words in order of frequency
the, and, for, are, but, not, you, all, any, can, had, her, was, one, our, out, day, get, has, him, his, how, man, new, now, old, see, two, way, who, boy, did, its, let, put, say, she, too, use
The most common four-letter words in order of frequency
That, with, have, this, will, your, from, they, know, want, been, good, much, some, time, very, when, come, here, just, like, long, make, many, more, only, over, such, take, than, them, well, were
The most commonly used words in the English language in order of frequency
The, of, and, to, in, a, is, that, be, it, by, are, for, was, as, he, with, on, his, at, which, but, from, has, this, will, one, have, not, were, or, all, their, an, I, there, been, many, more, so, when, had, may, today, who, would, time, we, about, after, dollars, if, my, other, some, them, being, its, no, only, over, very, you, into, most, than, they, day, even, made, out, first, great, must, these, can, days, every, found, general, her, here, last, new, now, people, public, said, since, still, such, through, under, up, war, well, where, while, years, before, between, country, debts, good, him, interest, large, like, make, our, take, upon, what
最高的是e用到的是a
第一轮
一眼扫过去.kfd zhx kf组合 kfda里面 a是s或者y 统计z 27个.k 21个
而z是单字母.所以推测z=a
最后
明文表 t h e a o u y r f b s i w ?(i) l n g m c p k x
密文表 k f d z u o a i r s m t p ?(v) y h c b e n g q
