360的系统修复在哪里:数据加密问题，请知道的朋友帮个忙，是英文题

A financial officer Southwick of a firm received a secrete message from his manager by using conventional transposition cipher encryption:
e c8ti 4mo/6 $ 3e5voR2 nika5m i. la7
Try to decrypt for him.
Note: there are 7 spaces in the encrypted message.
忘记给钥匙了，不过也是英文的....
c 5itg2tti: ka gAe2x tnhan4nb et
Try to decrypt it.
a. The total number of alphabets of the cipher text 33 is just 4 times of the 8 alphabets of the keyword. So we can divide the text into 8 groups, each contains 4 alphabets with orders from 1 to 8:
c(sp)5i tg2t ti:(sp) ka(sp)g Ae2x (sp)tnh an4n b (sp)et
here, the character (sp) means ‘space’.

b. Take the aliphatic order of the keyword as:
8 z b (sp)et
6 t (sp)tnh
4 r ka(sp)g
1 a c(sp)5i
7 w an4n
3 h ti:(sp)
2 c tg2t
5 S Ae2x

c. Then arrange the alphabet groups with same order in columns: (6 marks)
5 2 3 7 1 4 6 8
S c h w a r t z
A t t a c k (sp) b
e g i n (sp)a t (sp)
2 2 : 4 5 (sp) n e
x t (sp) n i g h t
Attack begin at 22:45 next night
c 5itg2tti: ka gAe2x tnhan4nb et 最后解出来的是明晚22：45开始攻击。其中sp是指空格的意思，
c 5itg2tti: ka gAe2x tnhan4nb et这串原码中有5个空格。各位达人知道这个解码钥匙的请多多帮助，非常感谢了！！！！