1 Sep 24 | Elliptic Curves | A Twisted Mind | 80 |
23 Aug 24 | Elliptic Curves | Digestive | 60 |
22 Aug 24 | Isogenies | A True Genus | 175 |
17 Aug 24 | Isogenies | Meet me in the Claw | 120 |
12 Aug 24 | Isogenies | Dual Masters | 90 |
10 Aug 24 | Isogenies | Abelian SIDH | 90 |
9 Aug 24 | Isogenies | Better than Linear | 85 |
9 Aug 24 | Isogenies | André Encoding | 80 |
7 Aug 24 | CTF Archive | Hide and seek (ECSC 2023 (Norway)) | 0 |
7 Aug 24 | Isogenies | What's My Kernel | 70 |
6 Aug 24 | Isogenies | CSIDH Key Exchange | 90 |
5 Aug 24 | CTF Archive | Blind (ECSC 2023 (Norway)) | 0 |
5 Aug 24 | Isogenies | Twisted CSIDH Isogenies | 70 |
4 Aug 24 | Isogenies | Secret Exponents | 60 |
3 Aug 24 | CTF Archive | RRSSAA (ECSC 2023 (Norway)) | 0 |
3 Aug 24 | Isogenies | Prime Power Isogenies | 50 |
2 Aug 24 | Isogenies | Special Isogenies | 30 |
1 Aug 24 | Isogenies | Breaking SIDH | 250 |
29 Jul 24 | Isogenies | SIDH Key Exchange | 80 |
28 Jul 24 | Isogenies | Composite Isogenies | 60 |
26 Jul 24 | Isogenies | Three Isogenies | 35 |
25 Jul 24 | Isogenies | Two Isogenies | 30 |
24 Jul 24 | Hash Functions | WOTS Up 2 | 90 |
24 Jul 24 | Hash Functions | WOTS Up | 75 |
22 Jul 24 | Hash Functions | Merkle Trees | 25 |
19 Jul 24 | CTF Archive | OR Proof (CryptoHack) | 0 |
19 Jul 24 | ZKPs | OR Proof | 75 |
18 Jul 24 | ZKPs | Too Honest | 50 |
18 Jul 24 | ZKPs | Non-Interactive | 35 |
17 Jul 24 | ZKPs | Honest Verifier Zero Knowledge | 30 |
17 Jul 24 | ZKPs | Special Soundness | 25 |
17 Jul 24 | ZKPs | Proofs of Knowledge | 20 |
16 Jul 24 | ZKPs | ZKP Introduction | 5 |
16 Jul 24 | Isogenies | DLOG on the Surface | 40 |
15 Jul 24 | Isogenies | Montgomery Curves | 30 |
13 Jul 24 | Isogenies | Image Point Arithmetic | 30 |
13 Jul 24 | Isogenies | Where's the Supersingular Curve | 25 |
12 Jul 24 | Isogenies | The j-invariant | 20 |
12 Jul 24 | Isogenies | Introduction to Isogenies | 10 |
18 May 23 | Lattices | Missing Modulus | 80 |
23 Feb 23 | Misc | RSA vs RNG | 150 |
17 Feb 23 | Lattices | Nativity | 60 |
31 Jan 23 | Mathematics | No Way Back Home | 100 |
29 Jan 23 | Crypto on the Web | Authenticated Handshake | 40 |
27 Jan 23 | Crypto on the Web | Decrypting TLS 1.3 | 35 |
27 Jan 23 | Crypto on the Web | Decrypting TLS 1.2 | 30 |
20 Jan 23 | Crypto on the Web | Saying Hello | 20 |
17 Jan 23 | Crypto on the Web | TLS Handshake | 15 |
17 Jan 23 | Crypto on the Web | Sharks on the Wire | 10 |
17 Jan 23 | Crypto on the Web | Secure Protocols | 5 |
17 Jan 23 | Lattices | Noise Free | 40 |
16 Jan 23 | Lattices | From Private to Public Key LWE | 25 |
16 Jan 23 | Lattices | LWE Low Bits Message | 20 |
15 Jan 23 | Lattices | LWE High Bits Message | 15 |
15 Jan 23 | Lattices | LWE Intro | 10 |
15 Jan 23 | Lattices | LWE Background | 5 |
23 Aug 21 | Misc | Bruce Schneier's Password | 100 |
21 Aug 21 | Lattices | Too Many Errors | 100 |
20 Aug 21 | Misc | Toshi's Treasure | 150 |
19 Aug 21 | Misc | Armory | 100 |
19 Aug 21 | Misc | Bit by Bit | 100 |
18 Aug 21 | Misc | Jeff's LFSR | 150 |
15 Aug 21 | Misc | L-Win | 120 |
15 Aug 21 | Hash Functions | No Difference | 175 |
14 Aug 21 | Hash Functions | Mixed Up | 120 |
13 Aug 21 | Hash Functions | Twin Keys | 100 |
11 Aug 21 | Hash Functions | PriMeD5 | 100 |
8 Aug 21 | Hash Functions | MD0 | 80 |
7 Aug 21 | Hash Functions | Hash Stuffing | 50 |
7 Aug 21 | Hash Functions | Collider | 50 |
6 Aug 21 | Misc | Trust Games | 150 |
5 Aug 21 | Misc | Nothing Up My Sleeve | 150 |
4 Aug 21 | Misc | Lo-Hi Card Game | 120 |
3 Aug 21 | Misc | No Leaks | 100 |
2 Aug 21 | Crypto on the Web | RSA or HMAC? Part 2 | 100 |
1 Aug 21 | Crypto on the Web | JSON in JSON | 40 |
31 Jul 21 | Diffie-Hellman | The Matrix Revolutions | 125 |
28 Jul 21 | Diffie-Hellman | The Matrix Reloaded | 100 |
27 Jul 21 | Diffie-Hellman | The Matrix | 75 |
26 Jul 21 | Symmetric Ciphers | Dancing Queen | 120 |
26 Jul 21 | Mathematics | Roll your Own | 125 |
20 Jul 21 | Misc | Gotta Go Fast | 40 |
19 Jul 21 | Crypto on the Web | RSA or HMAC? | 35 |
19 Jul 21 | Crypto on the Web | JWT Secrets | 25 |
19 Jul 21 | Crypto on the Web | No Way JOSE | 20 |
19 Jul 21 | Crypto on the Web | JWT Sessions | 10 |
19 Jul 21 | Crypto on the Web | Token Appreciation | 5 |
8 Jul 21 | General | SSH Keys | 35 |
8 Jul 21 | Elliptic Curves | Double and Broken | 50 |
7 Jul 21 | Elliptic Curves | Montgomery's Ladder | 40 |
7 Jul 21 | Elliptic Curves | Edwards Goes Degenerate | 100 |
6 Jul 21 | Elliptic Curves | No Random, No Bias | 120 |
2 Jul 21 | Elliptic Curves | ProSign 3 | 100 |
1 Jul 21 | Elliptic Curves | Curveball | 100 |
1 Jul 21 | Elliptic Curves | Moving Problems | 150 |
1 Jul 21 | Elliptic Curves | Elliptic Nodes | 150 |
1 Jul 21 | Elliptic Curves | Micro Transmissions | 120 |
24 Jun 21 | Elliptic Curves | Exceptional Curves | 100 |
23 Jun 21 | Elliptic Curves | Smooth Criminal | 60 |
23 Jun 21 | Elliptic Curves | Efficient Exchange | 50 |
23 Jun 21 | Elliptic Curves | Curves and Logs | 40 |
23 Jun 21 | Elliptic Curves | Scalar Multiplication | 35 |
23 Jun 21 | Elliptic Curves | Point Addition | 30 |
23 Jun 21 | Elliptic Curves | Point Negation | 10 |
23 Jun 21 | Elliptic Curves | Background Reading | 5 |
23 Jun 21 | Diffie-Hellman | Script Kiddie | 70 |
19 Jun 21 | Diffie-Hellman | Static Client 2 | 120 |
15 Jun 21 | Diffie-Hellman | Additive | 70 |
15 Jun 21 | Diffie-Hellman | Static Client | 100 |
11 Jun 21 | Diffie-Hellman | Export-grade | 100 |
10 Jun 21 | Diffie-Hellman | Parameter Injection | 60 |
10 Jun 21 | Diffie-Hellman | Deriving Symmetric Keys | 40 |
10 Jun 21 | Diffie-Hellman | Computing Shared Secrets | 30 |
10 Jun 21 | Diffie-Hellman | Computing Public Values | 25 |
10 Jun 21 | Diffie-Hellman | Generators of Groups | 20 |
10 Jun 21 | Diffie-Hellman | Working with Fields | 10 |
10 Jun 21 | RSA | Let's Decrypt Again | 175 |
6 Jun 21 | RSA | Vote for Pedro | 150 |
5 Jun 21 | RSA | Blinding Light | 120 |
4 Jun 21 | RSA | Let's Decrypt | 80 |
2 Jun 21 | RSA | Signing Server | 60 |
1 Jun 21 | RSA | Null or Never | 100 |
1 Jun 21 | RSA | Bespoke Padding | 100 |
29 May 21 | RSA | RSA Backdoor Viability | 175 |
28 May 21 | RSA | Ron was Wrong, Whit is Right | 90 |
28 May 21 | RSA | Fast Primes | 75 |
25 May 21 | RSA | Marin's Secrets | 50 |
24 May 21 | RSA | Infinite Descent | 50 |
23 May 21 | RSA | Endless Emails | 150 |
21 May 21 | RSA | Everything is Still Big | 100 |
20 May 21 | RSA | Crossed Wires | 100 |
19 May 21 | RSA | Everything is Big | 70 |
19 May 21 | RSA | Modulus Inutilis | 50 |
18 May 21 | RSA | Salty | 20 |
17 May 21 | RSA | Manyprime | 40 |
17 May 21 | RSA | Square Eyes | 35 |
17 May 21 | RSA | Monoprime | 30 |
17 May 21 | RSA | Inferius Prime | 30 |
17 May 21 | RSA | Factoring | 15 |
17 May 21 | RSA | RSA Signatures | 25 |
17 May 21 | RSA | RSA Decryption | 20 |
17 May 21 | RSA | Private Keys | 20 |
17 May 21 | RSA | Euler's Totient | 20 |
17 May 21 | RSA | Public Keys | 15 |
17 May 21 | RSA | Modular Exponentiation | 10 |
16 May 21 | Symmetric Ciphers | Oh SNAP | 120 |
14 May 21 | Symmetric Ciphers | Triple DES | 60 |
13 May 21 | Symmetric Ciphers | Paper Plane | 120 |
11 May 21 | Symmetric Ciphers | Logon Zero | 80 |
9 May 21 | Symmetric Ciphers | Forbidden Fruit | 150 |
5 May 21 | Symmetric Ciphers | Stream of Consciousness | 80 |
4 May 21 | Symmetric Ciphers | CTRIME | 70 |
3 May 21 | Symmetric Ciphers | Bean Counter | 60 |
2 May 21 | Symmetric Ciphers | Symmetry | 50 |
1 May 21 | Symmetric Ciphers | Lazy CBC | 60 |
30 Apr 21 | Symmetric Ciphers | Flipping Cookie | 60 |
29 Apr 21 | Symmetric Ciphers | ECB CBC WTF | 55 |
29 Apr 21 | Symmetric Ciphers | ECB Oracle | 60 |
27 Apr 21 | Symmetric Ciphers | Passwords as Keys | 50 |
26 Apr 21 | Symmetric Ciphers | Modes of Operation Starter | 15 |
25 Apr 21 | Symmetric Ciphers | Bringing It All Together | 50 |
25 Apr 21 | Symmetric Ciphers | Diffusion through Permutation | 30 |
25 Apr 21 | Symmetric Ciphers | Confusion through Substitution | 25 |
25 Apr 21 | Symmetric Ciphers | Round Keys | 20 |
25 Apr 21 | Symmetric Ciphers | Structure of AES | 15 |
25 Apr 21 | Symmetric Ciphers | Resisting Bruteforce | 10 |
24 Apr 21 | Symmetric Ciphers | Keyed Permutations | 5 |
24 Apr 21 | Mathematics | Prime and Prejudice | 200 |
21 Apr 21 | Mathematics | Real Eisenstein | 150 |
19 Apr 21 | Mathematics | Cofactor Cofantasy | 150 |
11 Apr 21 | Mathematics | Unencryptable | 125 |
11 Apr 21 | Mathematics | Ellipse Curve Cryptography | 125 |
3 Apr 21 | Mathematics | Broken RSA | 100 |
1 Apr 21 | Mathematics | Modular Binomials | 80 |
30 Mar 21 | Mathematics | Adrien's Signs | 80 |
29 Mar 21 | Mathematics | Successive Powers | 60 |
28 Mar 21 | Hash Functions | Jack's Birthday Confusion | 30 |
26 Mar 21 | Hash Functions | Jack's Birthday Hash | 20 |
25 Mar 21 | Lattices | Backpack Cryptography | 120 |
24 Mar 21 | Lattices | Find the Lattice | 100 |
23 Mar 21 | Lattices | Gaussian Reduction | 50 |
22 Mar 21 | Lattices | What's a Lattice? | 40 |
21 Mar 21 | Lattices | Gram Schmidt | 30 |
20 Mar 21 | Lattices | Size and Basis | 15 |
19 Mar 21 | Lattices | Vectors | 10 |
18 Mar 21 | Mathematics | Chinese Remainder Theorem | 40 |
17 Mar 21 | Mathematics | Modular Square Root | 35 |
15 Mar 21 | Mathematics | Legendre Symbol | 35 |
14 Mar 21 | Mathematics | Quadratic Residues | 25 |
14 Mar 21 | General | Transparency | 50 |
12 Mar 21 | General | CERTainly not | 30 |
11 Mar 21 | General | Privacy-Enhanced Mail? | 25 |
10 Mar 21 | General | Modular Inverting | 25 |
9 Mar 21 | General | Modular Arithmetic 2 | 20 |
8 Mar 21 | General | Modular Arithmetic 1 | 20 |
7 Mar 21 | General | Extended GCD | 20 |
6 Mar 21 | General | Greatest Common Divisor | 15 |
5 Mar 21 | General | Lemur XOR | 40 |
4 Mar 21 | General | You either know, XOR you don't | 30 |
3 Mar 21 | General | Favourite byte | 20 |
2 Mar 21 | General | XOR Properties | 15 |
1 Mar 21 | General | XOR Starter | 10 |
28 Feb 21 | General | Encoding Challenge | 40 |
27 Feb 21 | General | Bytes and Big Integers | 10 |
26 Feb 21 | General | Base64 | 10 |
25 Feb 21 | General | Hex | 5 |
24 Feb 21 | General | ASCII | 5 |
23 Feb 21 | Introduction | Network Attacks | 5 |
23 Feb 21 | Introduction | Great Snakes | 3 |
23 Feb 21 | Introduction | Finding Flags | 2 |
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