lug-bg: RE: CRC sum

[unitrans@xxxxxxx (Yavor Ivanov)]

Ti kaza taka:
CRC sum-a mozesh da napravish s 1001 polinoma ot sorta A1*X^n + A2*X^(n-1) + ... + An*X + A(n+1). Chesto pod CRC se razbira chistoto sumirane na byte-ove ili word(2 bytes). No kakva tochno suma polzvash trjabva da proverish. Zashtoto i MD5sum pravi sashtoto no izchisljava suma na MD5 kodirani word(2 byte) ot fajla. Experimentiraj.

mozesh da pusnesh md5sum taka :

md5sum filename

ili 

md5sum -b filename

resultata mozesh da go zapishesh v file i da go proverish s :

md5sum -c res_filename
.
OK
probvah po tvoq na4in no mi go dava mnoogo dylgo i software nemigo priema 
eto ti primer za daden file trqbva da se polu4i CRC sum koeto e slednoto
164CC003 ei tva otgovarq na 123 a file e na http://yavor.bul.to/proba.pwl
tova 123 e pass-a na file koito v CRC sum e 164CC003 a kato go prevyrna v  pass otgovarq na 123 no kogato neznaem kakva e parolata trqbva da razberem kakyf e CRC sum ei tova nemoga da izvleka ot file-a
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