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2026-08-11 CTF resources and toolsCTF RESOURCES TOOLS
2025-12-04 JuleCTF: RSA...W?CTF CRYPTO RSA
2025-10-20 RSA small e: cube root attackCTF CRYPTO RSA
2025-08-31 NNS CTF: Translator, not clanker, base64 unused bitsCTF MISC
2025-08-31 NNS CTF: parcellocker, small RSA signaturesCTF CRYPTO
2025-08-31 NNS CTF: noters, rust logic bugCTF PWN
2025-08-31 NNS CTF: haatetepe, AAAAAAAAAAAAAA on the webCTF PWN
2025-01-03 Symmetric crypto: OTP, AES modes, CRIMECTF CRYPTO
2025-01-03 Secret sharing: Shamir's and Blakley's schemesCTF CRYPTO
2025-01-03 RSA large e: Wiener's attackCTF CRYPTO RSA
2024-10-11 Attack/defense automation: PCAPs, SSH keys, gitCTF A/D
2024-07-28 Blockchain: smart contract securityCTF BLOCKCHAIN
2024-07-28 Binary exploitation: techniques and vulnerabilitiesCTF PWN
2024-07-27 Hardware: fault injection and side channelsCTF HARDWARE
2024-06-21 Caesar cipher and ROT variantsCTF CRYPTO
2024-06-20 HexadecimalCTF MISC ENCODINGS
2024-06-20 BinaryCTF MISC ENCODINGS
2024-06-20 Base64CTF MISC ENCODINGS
2024-06-07 BCACTF: reload decodeCTF MISC
2023-12-15 NPST 15. Bitråte: defeating bit rotCTF FORENSICS
2023-12-13 NPST 13. GeoGjettr: QR code restorationCTF OSINT
2023-12-12 NPST 12. Pakkestorm: IPv4 evil bitCTF FORENSICS
2023-12-11 NPST 11. Mystifistisk pakke: cracking a ZIPCTF FORENSICS
2023-12-11 NPST 11. Informasjonsdeling: multiple AES-GCM keysCTF CRYPTO
2023-12-10 NPST 10. AlvesorteringCTF MISC
2023-12-09 NPST 09. Kronolokalisering: shadow geolocation OSINTCTF OSINT
2023-12-07 NPST 07. Alle gode ting er tre: small RSA exponentCTF CRYPTO
2023-12-06 NPST 06. KAKER-kontroll: zero-width character stegoCTF MISC
2023-12-05 NPST 05. Muldvarpjakt: Overpass Turbo OSINTCTF OSINT
2023-12-04 NPST 04. Pinneved: obfuscated PythonCTF REVERSE-ENGINEERING
2023-12-03 NPST 03. Redacted: light DOCX forensicsCTF FORENSICS
2023-12-02 NPST 02. Scrambled: Rubik's cubeCTF MISC
2023-12-01 NPST 01. Mobildetektiven: SMS cipherCTF MISC
2023-11-27 RSA: encryption and decryptionCTF CRYPTO RSA
2023-11-27 RSA small primes: factoring with FactorDBCTF CRYPTO RSA
2023-11-27 RSA monoprime: when n = pCTF CRYPTO RSA
2023-11-27 RSA many primes: phi for repeated factorsCTF CRYPTO RSA
2023-11-27 Diffie-Hellman key exchangeCTF CRYPTO
2023-08-11 DREAM: sleepy vault, blind timing attack credential recoveryCTF MISC
2023-07-10 UIUCTF: escaping a Vim jail (unintended)CTF MISC
2022-03-14 SpaceCTF: AES-CTR key reuseCTF CRYPTO