dersou

318th place

32 points


Solves

Challenge Category Value Time
[★☆☆] Ransomware - Recovery 1 Cryptography 3
[★☆☆] Adversary - Key exchange Cryptography 9
[★☆☆] Adversary - 3AES Cryptography 3
[★☆☆] Adversary - Almost Classic Cryptography 3
[☆☆☆] First Contact - Or hack their mainframe... Forensics 1
[☆☆☆] First Contact - Independence day Forensics 1
[☆☆☆] First Contact - A Day in the Strife Forensics 1
[☆☆☆] First Contact - Between 15 and 17 Forensics 1
[☆☆☆] First Contact - Still fighting Forensics 1
[☆☆☆] First Contact - So long, but wait, we’re still playing! Forensics 1
[☆☆☆] First Contact - In competition with jellyfish Forensics 1
[☆☆☆] First Contact - Hard choices Forensics 1
[☆☆☆] SanityChecker - Password protected Malware Analysis and Reverse Engineering 1
[☆☆☆] SanityChecker - Bash dropper Malware Analysis and Reverse Engineering 1
[☆☆☆] SanityChecker - Sleepy python Malware Analysis and Reverse Engineering 1
[☆☆☆] Advanced Decryption Standard - easy like counting up to three Cryptography 1
[☆☆☆] Advanced Decryption Standard - Blockchain Cryptography 1
[☆☆☆] Advanced Decryption Standard - Codebook Cryptography 1