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A complete writeup of the BlackHat 2025 crypto CTF challenges, including Hatagawa-II and Whack-A-Scratch. We break custom cryptographic schemes and reverse engineering puzzles to recover flags, with detailed analysis.
Blackhat-2025
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- web (5)
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- writeup (2)
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- ssti (2)
- rce (2)
- hatagawa (1)
- hatagawa-ii (1)
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blackhat-2025 (1)
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- flagyard (1)
- codecon (1)
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- blind-sql (1)
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