في ما يلي رسالة مشفرة حاولوا ان تفكو الشفرة و  تستخرجوا الكلمات 
عن طريق الطريقة الإحصائية لنسبة تكرر الأحرف في اللغة الإنجليزية
هناك  درجات اضافية .......

This is a encrypted text using simple substitution method i want you 
to try to Decrypt the text and find the secret letter if you can do 
it then you will get valuable bonus points..... 

the encrypted 
message : "IWRAVGCDILCWIHESCBIKEAVXIBLGVNVDQPAXLXLIBSICXAVGVJCHABSVKVX
PLABLBVGBICNWWIBSIXHIWWCDIWAGXLIAHHIGWIBVHRNIUAXQVJLYHCGKGCXLISIWICSBL
ISWRSVZIKXLIKGCHABSVKVXPVSFWEQRCWXAGDXLIXAGQKVXWVZISXLIJYNNWXVRWAGCXQR
IKNIXXISRVWXAGDAXCGKXLIGCGCNQWAGDXLIKVXWPLIGAXCSSAZIKECBFXLIHIWWCDIPCW
SIBIAZIKNVYKCGKBNICSXLIJASWXWXIRVJXLIXIBLGATYIAWXVYWICWAHRNIBVKIXVBVGZ
ISXXLINIXXISWVJXLICNRLCEIXAGXVBVHEAGCXAVGWVJXLIJVYSECWIWPLABLHCFIYRKGC
GIUXCRAIBIVJBSICXIKGIUXCRAIBIVJKGCWRINNAGDVYXXLIHIWWCDIAWWQGXLIXABCNNQ
BSICXIKAXBVGXCAGWXLIWIBSIXHIWWCDIAGXLIHAKKNIRNYWWLVSXHCSFISWITYIGBIWCX
ICBLIGKXLAWAWWNARRIKAGXVCGVSHCNRAIBIVJLYHCGKGCXLIWIBSIXHIWWCDIKGCWXSCG
KAWXLIGHAUIKPAXLVSKAGCSQKGCWXSCGKWVJWAHANCSNIGDXLXLISIWYNXAGDHAUXYSIAW
KSAIKVGXVRCRISPLABLBCGXLIGEIBYXAGXVXAGQKVXWBVGDSCXYNCXAVGWQVYWVNZIKXLI
RSVENIHCGKQVYDIXIUXSCJAJXIIGHCSFWVGXHCJVYS" 

SOME HINTS you have to apply some statistics to get the KEY to 
decypher the message ............... USE A program TOOL to help you
Other references: 

English letters frequencies
a  8.2     n       6.7
b  1.5     o       7.5
c  2.8     p       1.9
d  4.3     q       0.1
e  12.7    r       6  
f  2.2     s       6.3
g  2       t       9.1
h  6.1     u       2.8
i  7       v       1  
j  0.2     w       2.4
k  0.8     x       0.2
l  4       y       2  
m  2.4     z       0.1

 





 
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