Crypto on the Web | RSA or HMAC? Part 2 | 100 | |
Hash Functions | WOTS Up 2 | 90 | |
Hash Functions | WOTS Up | 75 | |
Hash Functions | Merkle Trees | 25 | |
Hash Functions | Invariant | 250 | |
Hash Functions | Mixed Up | 120 | |
Hash Functions | MDFlag | 125 | |
Hash Functions | No Difference | 175 | |
Hash Functions | Twin Keys | 100 | |
Hash Functions | PriMeD5 | 100 | |
Hash Functions | Hash Stuffing | 50 | |
Hash Functions | Collider | 50 | |
Symmetric Ciphers | Beatboxer | 150 | |
Symmetric Ciphers | Forbidden Fruit | 150 | |
Symmetric Ciphers | Paper Plane | 120 | |
Symmetric Ciphers | The Good, The Pad, The Ugly | 100 | |
Diffie-Hellman | The Matrix Revolutions | 125 | |
Diffie-Hellman | The Matrix Reloaded | 100 | |
Diffie-Hellman | The Matrix | 75 | |
Diffie-Hellman | Script Kiddie | 70 | |
Diffie-Hellman | Static Client 2 | 120 | |
Diffie-Hellman | Additive | 70 | |
Diffie-Hellman | Static Client | 100 | |
Symmetric Ciphers | Oh SNAP | 120 | |
Mathematics | Prime and Prejudice | 200 | |
Mathematics | Real Eisenstein | 150 | |
Mathematics | Cofactor Cofantasy | 150 | |
Mathematics | Roll your Own | 125 | |
Mathematics | Ellipse Curve Cryptography | 125 | |
Mathematics | No Way Back Home | 100 | |
RSA | Let's Decrypt Again | 175 | |
RSA | Vote for Pedro | 150 | |
RSA | Blinding Light | 120 | |
RSA | Let's Decrypt | 80 | |
RSA | Signing Server | 60 | |
RSA | Null or Never | 100 | |
RSA | Bespoke Padding | 100 | |
RSA | RSA Backdoor Viability | 175 | |
RSA | Fast Primes | 75 | |
RSA | Marin's Secrets | 50 | |
RSA | Infinite Descent | 50 | |
Mathematics | Broken RSA | 100 | |
Symmetric Ciphers | Pad Thai | 80 | |
Symmetric Ciphers | Dancing Queen | 120 | |
Symmetric Ciphers | Logon Zero | 80 | |
Symmetric Ciphers | Symmetry | 50 | |
Symmetric Ciphers | Stream of Consciousness | 80 | |
RSA | Ron was Wrong, Whit is Right | 90 | |
Hash Functions | MD0 | 80 | |
Diffie-Hellman | Export-grade | 100 | |
Symmetric Ciphers | CTRIME | 70 | |
RSA | Endless Emails | 150 | |
RSA | Crossed Wires | 100 | |
Symmetric Ciphers | Bean Counter | 60 | |
Symmetric Ciphers | Triple DES | 60 | |
Symmetric Ciphers | ECB CBC WTF | 55 | |
Symmetric Ciphers | ECB Oracle | 60 | |
Mathematics | Unencryptable | 125 | |
Crypto on the Web | Decrypting TLS 1.3 | 35 | |
Crypto on the Web | Decrypting TLS 1.2 | 30 | |
Crypto on the Web | Saying Hello | 20 | |
Crypto on the Web | TLS Handshake | 15 | |
Crypto on the Web | Sharks on the Wire | 10 | |
Crypto on the Web | Secure Protocols | 5 | |
Crypto on the Web | JWT Secrets | 25 | |
Crypto on the Web | No Way JOSE | 20 | |
Crypto on the Web | JWT Sessions | 10 | |
Crypto on the Web | Token Appreciation | 5 | |
ZKPs | ZKP Introduction | 5 | |
Misc | Gotta Go Fast | 40 | |
Isogenies | Introduction to Isogenies | 10 | |
Symmetric Ciphers | Lazy CBC | 60 | |
Symmetric Ciphers | Flipping Cookie | 60 | |
Diffie-Hellman | Parameter Injection | 60 | |
Symmetric Ciphers | Passwords as Keys | 50 | |
Symmetric Ciphers | Modes of Operation Starter | 15 | |
Symmetric Ciphers | Bringing It All Together | 50 | |
Symmetric Ciphers | Diffusion through Permutation | 30 | |
Symmetric Ciphers | Confusion through Substitution | 25 | |
Symmetric Ciphers | Round Keys | 20 | |
Mathematics | Modular Binomials | 80 | |
Mathematics | Adrien's Signs | 80 | |
Mathematics | Successive Powers | 60 | |
Mathematics | Modular Square Root | 35 | |
Mathematics | Legendre Symbol | 35 | |
Diffie-Hellman | Deriving Symmetric Keys | 40 | |
Diffie-Hellman | Computing Shared Secrets | 30 | |
Diffie-Hellman | Computing Public Values | 25 | |
Diffie-Hellman | Generators of Groups | 20 | |
CTF Archive | Hyper512 (HITCON CTF) | 0 | |
CTF Archive | ECLCG (HITCON CTF) | 0 | |
CTF Archive | Additional problems (CSC Belgium) | 0 | |
CTF Archive | unrandom DSA (HackTM CTF) | 0 | |
CTF Archive | kaitenzushi (HackTM CTF) | 0 | |
CTF Archive | d-phi-enc (HackTM CTF) | 0 | |
CTF Archive | broken oracle (HackTM CTF) | 0 | |
CTF Archive | What a Curve! (Breizh CTF) | 0 | |
CTF Archive | Twist and shout (ECSC 2023 (Norway)) | 0 | |
CTF Archive | Tough decisions (ECSC 2023 (Norway)) | 0 | |
CTF Archive | Sus (ImaginaryCTF) | 0 | |
CTF Archive | Share (HITCON CTF) | 0 | |
CTF Archive | RRSSAA (ECSC 2023 (Norway)) | 0 | |
CTF Archive | Put a ring on it (ECSC 2023 (Norway)) | 0 | |
CTF Archive | Leet Universe (ImaginaryCTF (Daily)) | 0 | |
CTF Archive | Irish flan (ECSC 2023 (Norway)) | 0 | |
CTF Archive | Hide and seek (ECSC 2023 (Norway)) | 0 | |
CTF Archive | GLP420 (HackTM CTF) | 0 | |
CTF Archive | Blind (ECSC 2023 (Norway)) | 0 | |
CTF Archive | Signature (TSJ CTF) | 0 | |
CTF Archive | pekobot (AIS3 Pre-Exam) | 0 | |
CTF Archive | RSA Secret Sharing (WACON) | 0 | |
CTF Archive | RSA Permutation (WACON) | 0 | |
CTF Archive | Probability (SEETF) | 0 | |
CTF Archive | Maybe Someday (GoogleCTF) | 0 | |
CTF Archive | Maybe Someday (Maybe Someday CTF) | 0 | |
CTF Archive | Key recovery (DCTF) | 0 | |
CTF Archive | Unbalanced (ICC Athens) | 0 | |
CTF Archive | ed25519 magic (ICC Athens) | 0 | |
CTF Archive | Functional (ICC Athens) | 0 | |
CTF Archive | diffecient (SekaiCTF) | 0 | |
CTF Archive | FaILProof Revenge (SekaiCTF) | 0 | |
CTF Archive | FaILProof (SekaiCTF) | 0 | |
CTF Archive | Dark Arts (CODEGATE CTF) | 0 | |
CTF Archive | Lack of Entropy (Firebird Internal CTF) | 0 | |
CTF Archive | C0ll1d3r (Firebird Internal CTF) | 0 | |
CTF Archive | Authenticator (Firebird Internal CTF) | 0 | |
CTF Archive | Unimplemented (TETCTF) | 0 | |
CTF Archive | Unevaluated (TETCTF) | 0 | |
CTF Archive | SpongeBob SquarePants / Battle for Bikini Bottom - Rehydrated (HTB Cyber Apocalypse) | 0 | |
CTF Archive | import numpy as MT (Zh3r0 CTF V2) | 0 | |
CTF Archive | Twist and Shout (Zh3r0 CTF V2) | 0 | |
CTF Archive | Substitution Cipher III (DownUnderCTF) | 0 | |
CTF Archive | Real Mersenne (Zh3r0 CTF V2) | 0 | |
CTF Archive | Oofbleck (Firebird Internal CTF) | 0 | |
CTF Archive | Tenet: The Plagarism (HKCERT CTF) | 0 | |
CTF Archive | Sratslla SEA (HKCERT CTF) | 0 | |
CTF Archive | Sign In Please, Again (HKCERT CTF) | 0 | |
CTF Archive | Key Backup Service 2 (HKCERT CTF) | 0 | |
CTF Archive | Key Backup Service 1 (HKCERT CTF) | 0 | |
CTF Archive | Cipher Mode Picker (HKCERT CTF) | 0 | |
CTF Archive | Chaos (Zh3r0 CTF V2) | 0 | |
CTF Archive | A Joke Cipher (HKCERT CTF) | 0 | |
CTF Archive | 1n_jection (Zh3r0 CTF V2) | 0 | |
CTF Archive | 1337crypt v2 (DownUnderCTF) | 0 | |
CTF Archive | 2020 (TETCTF) | 0 | |
CTF Archive | 1337crypt (DownUnderCTF) | 0 | |
CTF Archive | Calm Down (HKCERT CTF) | 0 | |
CTF Archive | Sign in Please (HKCERT CTF) | 0 | |
RSA | Everything is Still Big | 100 | |
Mathematics | Chinese Remainder Theorem | 40 | |
RSA | Everything is Big | 70 | |
RSA | Modulus Inutilis | 50 | |
RSA | Salty | 20 | |
RSA | RSA Signatures | 25 | |
RSA | RSA Decryption | 20 | |
RSA | Inferius Prime | 30 | |
RSA | Manyprime | 40 | |
General | Transparency | 50 | |
General | SSH Keys | 35 | |
General | CERTainly not | 30 | |
General | Privacy-Enhanced Mail? | 25 | |
General | Lemur XOR | 40 | |
General | Encoding Challenge | 40 | |
Introduction | Network Attacks | 5 | |
Hash Functions | Jack's Birthday Confusion | 30 | |
Hash Functions | Jack's Birthday Hash | 20 | |
Elliptic Curves | Background Reading | 5 | |
Diffie-Hellman | Working with Fields | 10 | |
RSA | Square Eyes | 35 | |
RSA | Monoprime | 30 | |
RSA | Factoring | 15 | |
RSA | Private Keys | 20 | |
RSA | Euler's Totient | 20 | |
RSA | Public Keys | 15 | |
RSA | Modular Exponentiation | 10 | |
Mathematics | Quadratic Residues | 25 | |
Symmetric Ciphers | Structure of AES | 15 | |
Symmetric Ciphers | Resisting Bruteforce | 10 | |
Symmetric Ciphers | Keyed Permutations | 5 | |
General | Modular Inverting | 25 | |
General | Modular Arithmetic 2 | 20 | |
General | You either know, XOR you don't | 30 | |
General | Favourite byte | 20 | |
General | XOR Properties | 15 | |
Lattices | LWE Background | 5 | |
General | XOR Starter | 10 | |
General | Modular Arithmetic 1 | 20 | |
General | Extended GCD | 20 | |
General | Greatest Common Divisor | 15 | |
General | Bytes and Big Integers | 10 | |
General | Base64 | 10 | |
General | Hex | 5 | |
General | ASCII | 5 | |
Introduction | Great Snakes | 3 | |
Introduction | Finding Flags | 2 |
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