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sasc:res:tema1 [2017/03/19 23:40] dan.dragan [Bonus (4 pct)] |
sasc:res:tema1 [2017/03/19 23:46] (current) dan.dragan |
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| {{:sasc:res:css_enc.png|}} | {{:sasc:res:css_enc.png|}} | ||
| - | Decode the following ciphertext: '74b906c56684a5d250fe68bc09eb7ee55ffd2271b8d07d6c35a41d96e4ada74de4852d031ba080374dce7bbcaafd0a4bd4' and knowing that the first bit for both 17 bits and 25 bits LFSRs is 1 and the first 6 bytes of plaintext of the encryption are: 'ENCRYP'. | + | Decode the following ciphertext: |
| + | <code> | ||
| + | '74b906c56684a5d250fe68bc09eb7ee55ffd2271b8d07d6c35a41d96e4ada74de4852d031ba080374dce7bbcaafd0a4bd4' | ||
| + | </code> | ||
| + | knowing that the first bit for both 17 bits and 25 bits LFSRs is 1 and the first 6 bytes of plaintext of the encryption are: | ||
| + | <code> | ||
| + | 'ENCRYP' | ||
| + | </code> | ||
| + | |||
| + | Please download the skeleton from here: {{:sasc:res:dvd_css.zip|}} | ||