| 2026-10-11T00:50:43Z |
CTF Archive |
RRSSAA (ECSC 2023 (Norway)) |
0
|
| 2026-10-10T23:38:41Z |
CTF Archive |
Oofbleck (Firebird Internal CTF) |
0
|
| 2026-10-10T19:37:03Z |
CTF Archive |
Hide and seek (ECSC 2023 (Norway)) |
0
|
| 2026-10-10T17:41:54Z |
Misc |
Bad Temper 2 |
150
|
| 2026-10-10T00:41:31Z |
Isogenies |
Breaking SIDH |
250
|
| 2026-10-08T15:07:40Z |
Symmetric Ciphers |
Rhetorical Oracle 2 |
150
|
| 2026-10-08T09:09:55Z |
Symmetric Ciphers |
Rhetorical Oracle |
100
|
| 2026-10-07T10:04:25Z |
Mathematics |
Common Ground |
75
|
| 2026-10-07T09:51:24Z |
Hash Functions |
Long Story Short |
60
|
| 2026-10-07T04:57:28Z |
Hash Functions |
Seventy-Two |
50
|
| 2026-10-07T02:46:49Z |
Misc |
Bad Temper |
130
|
| 2026-10-04T17:37:29Z |
CTF Archive |
Lack of Entropy (Firebird Internal CTF) |
0
|
| 2026-10-04T14:06:29Z |
CTF Archive |
Unimplemented (TETCTF) |
0
|
| 2026-10-04T04:50:20Z |
CTF Archive |
1337crypt (DownUnderCTF) |
0
|
| 2026-10-03T16:35:12Z |
CTF Archive |
Calm Down (HKCERT CTF) |
0
|
| 2026-10-01T03:01:05Z |
ZKPs |
Ticket Maestro |
200
|
| 2026-10-01T03:00:35Z |
CTF Archive |
Ticket Maestro (CryptoHack) |
0
|
| 2026-09-30T13:11:04Z |
CTF Archive |
Hamiltonicity 2 (CryptoHack) |
0
|
| 2026-09-30T13:10:54Z |
ZKPs |
Hamiltonicity 2 |
175
|
| 2026-09-28T19:47:05Z |
Isogenies |
Better than Linear |
85
|
| 2026-09-28T01:06:33Z |
Isogenies |
A True Genus |
175
|
| 2026-09-20T22:34:37Z |
CTF Archive |
Fischlin's Transformation (CryptoHack) |
0
|
| 2026-09-20T22:34:14Z |
CTF Archive |
Hamiltonicity (CryptoHack) |
0
|
| 2026-09-20T20:12:05Z |
ZKPs |
Let's Prove It Again |
175
|
| 2026-09-20T20:11:47Z |
ZKPs |
Mister Saplins The Prover |
125
|
| 2026-09-20T20:11:33Z |
ZKPs |
Let's Prove It |
120
|
| 2026-09-20T20:11:18Z |
ZKPs |
Mister Saplin's Preview |
80
|
| 2026-09-20T20:11:02Z |
ZKPs |
Pairing-Based Cryptography |
50
|
| 2026-09-20T20:10:40Z |
ZKPs |
Fischlin Transform |
180
|
| 2026-09-20T20:10:24Z |
ZKPs |
Hamiltonicity 1 |
100
|
| 2026-09-20T20:10:05Z |
ZKPs |
Couples |
100
|
| 2026-09-20T17:41:54Z |
Isogenies |
Meet me in the Claw |
120
|
| 2026-09-20T14:37:01Z |
Isogenies |
Dual Masters |
90
|
| 2026-09-20T02:08:00Z |
Isogenies |
Abelian SIDH |
90
|
| 2026-09-20T01:16:56Z |
Isogenies |
André Encoding |
80
|
| 2026-09-19T19:16:40Z |
Isogenies |
What's My Kernel |
70
|
| 2026-09-19T14:14:45Z |
Isogenies |
CSIDH Key Exchange |
90
|
| 2026-09-19T13:18:41Z |
Isogenies |
Twisted CSIDH Isogenies |
70
|
| 2026-09-19T13:06:37Z |
Isogenies |
Secret Exponents |
60
|
| 2026-09-19T12:40:57Z |
Isogenies |
Prime Power Isogenies |
50
|
| 2026-09-19T12:18:55Z |
Isogenies |
Special Isogenies |
30
|
| 2026-09-19T12:05:54Z |
Isogenies |
SIDH Key Exchange |
80
|
| 2026-09-19T01:59:42Z |
Isogenies |
Composite Isogenies |
60
|
| 2026-09-19T01:16:58Z |
Isogenies |
Three Isogenies |
35
|
| 2026-09-17T21:08:52Z |
Isogenies |
Two Isogenies |
30
|
| 2026-09-17T20:51:03Z |
Isogenies |
DLOG on the Surface |
40
|
| 2026-09-17T19:05:26Z |
Isogenies |
Montgomery Curves |
30
|
| 2026-09-17T10:23:04Z |
Isogenies |
Image Point Arithmetic |
30
|
| 2026-09-17T10:09:14Z |
Isogenies |
Where's the Supersingular Curve |
25
|
| 2026-09-17T09:20:47Z |
Isogenies |
The j-invariant |
20
|
| 2026-09-17T09:12:16Z |
Isogenies |
Introduction to Isogenies |
10
|
| 2026-09-06T15:48:44Z |
CTF Archive |
OR Proof (CryptoHack) |
0
|
| 2026-09-06T15:44:43Z |
ZKPs |
OR Proof |
75
|
| 2026-09-06T11:39:05Z |
ZKPs |
Too Honest |
50
|
| 2026-09-06T01:44:21Z |
ZKPs |
Non-Interactive |
35
|
| 2026-09-06T01:25:51Z |
ZKPs |
Honest Verifier Zero Knowledge |
30
|
| 2026-09-05T09:03:20Z |
ZKPs |
Special Soundness |
25
|
| 2026-09-05T05:53:02Z |
ZKPs |
Proofs of Knowledge |
20
|
| 2026-09-05T05:37:50Z |
ZKPs |
ZKP Introduction |
5
|
| 2026-09-04T08:50:32Z |
Misc |
LFSR Destroyer |
250
|
| 2026-09-02T09:13:57Z |
Elliptic Curves |
An Evil Twisted Mind |
175
|
| 2026-09-02T08:48:03Z |
Misc |
Bruce Schneier's Password: Part 2 |
250
|
| 2026-08-30T19:44:02Z |
Elliptic Curves |
An Exceptional Twisted Mind |
125
|
| 2026-08-28T07:30:45Z |
Hash Functions |
Invariant |
250
|
| 2026-08-27T21:39:08Z |
Symmetric Ciphers |
Oracular Spectacular |
150
|
| 2026-08-26T12:16:30Z |
Elliptic Curves |
Real Curve Crypto |
200
|
| 2026-08-26T06:49:17Z |
Symmetric Ciphers |
Beatboxer |
150
|
| 2026-08-21T20:53:08Z |
Crypto on the Web |
Megalomaniac 2 |
120
|
| 2026-08-19T18:03:30Z |
Diffie-Hellman |
The Matrix Revolutions |
125
|
| 2026-08-19T01:35:53Z |
Lattices |
Too Many Errors |
100
|
| 2026-08-19T01:29:35Z |
Lattices |
Noise Cheap |
90
|
| 2026-07-13T04:53:02Z |
Lattices |
Missing Modulus |
80
|
| 2026-07-12T18:57:54Z |
Lattices |
Nativity |
60
|
| 2026-07-12T17:04:18Z |
Lattices |
Bounded Noise |
50
|
| 2026-07-11T14:58:58Z |
Mathematics |
Real Eisenstein |
150
|
| 2026-07-09T10:45:22Z |
Diffie-Hellman |
The Matrix Reloaded |
100
|
| 2025-09-06T19:54:55Z |
Crypto on the Web |
Megalomaniac 3 |
120
|
| 2025-09-04T12:34:58Z |
Lattices |
Noise Free |
40
|
| 2025-09-02T19:06:20Z |
Lattices |
From Private to Public Key LWE |
25
|
| 2025-09-02T19:04:17Z |
Lattices |
LWE Low Bits Message |
20
|
| 2025-09-02T19:00:18Z |
Lattices |
LWE High Bits Message |
15
|
| 2025-09-01T22:47:21Z |
Lattices |
Backpack Cryptography |
120
|
| 2025-08-31T23:36:39Z |
Elliptic Curves |
No Random, No Bias |
120
|
| 2025-08-29T12:34:12Z |
Lattices |
LWE Intro |
10
|
| 2025-08-28T21:29:10Z |
Lattices |
Find the Lattice |
100
|
| 2025-08-28T21:12:11Z |
Lattices |
LWE Background |
5
|
| 2025-08-28T21:04:21Z |
Lattices |
Gaussian Reduction |
50
|
| 2025-08-28T20:45:51Z |
Lattices |
What's a Lattice? |
40
|
| 2025-08-28T20:28:37Z |
Elliptic Curves |
Checkpoint |
150
|
| 2025-08-27T13:51:37Z |
Elliptic Curves |
A Twisted Mind |
80
|
| 2025-08-26T20:02:45Z |
Elliptic Curves |
Montgomery's Ladder |
40
|
| 2025-04-12T08:06:29Z |
Lattices |
Gram Schmidt |
30
|
| 2025-04-12T07:21:25Z |
Lattices |
Size and Basis |
15
|
| 2025-04-12T07:09:58Z |
Lattices |
Vectors |
10
|
| 2025-04-12T03:16:13Z |
Misc |
Trust Games |
150
|
| 2025-04-07T23:50:25Z |
Misc |
Toshi's Treasure |
150
|
| 2025-04-07T08:00:14Z |
Elliptic Curves |
Double and Broken |
50
|
| 2025-04-06T08:18:31Z |
Hash Functions |
WOTS Up 2 |
90
|
| 2025-04-06T02:46:26Z |
Hash Functions |
WOTS Up |
75
|
| 2025-04-05T22:52:52Z |
Hash Functions |
Merkle Trees |
25
|
| 2025-04-05T13:42:46Z |
Symmetric Ciphers |
Oh SNAP |
120
|
| 2025-04-05T04:45:28Z |
Symmetric Ciphers |
Dancing Queen |
120
|
| 2025-04-02T20:01:56Z |
Misc |
Jeff's LFSR |
150
|
| 2025-03-24T03:21:22Z |
Misc |
L-Win |
120
|
| 2025-03-22T09:31:36Z |
Misc |
Bit by Bit |
100
|
| 2025-03-22T07:10:49Z |
Misc |
Armory |
100
|
| 2025-03-21T08:11:33Z |
Misc |
Bruce Schneier's Password |
100
|
| 2025-03-07T08:35:35Z |
Symmetric Ciphers |
Forbidden Fruit |
150
|
| 2025-03-03T09:03:45Z |
Symmetric Ciphers |
Paper Plane |
120
|
| 2025-02-28T12:13:48Z |
Elliptic Curves |
Edwards Goes Degenerate |
100
|
| 2025-02-28T03:21:11Z |
Crypto on the Web |
Megalomaniac 1 |
100
|
| 2025-02-26T10:50:36Z |
Hash Functions |
Mixed Up |
120
|
| 2025-02-25T13:45:46Z |
Hash Functions |
MDFlag |
125
|
| 2025-02-25T09:26:21Z |
CTF Archive |
Sign in Please (HKCERT CTF) |
0
|
| 2025-02-23T08:30:03Z |
Misc |
Nothing Up My Sleeve |
150
|
| 2025-02-22T03:38:18Z |
Elliptic Curves |
Moving Problems |
150
|
| 2025-02-22T01:48:34Z |
Elliptic Curves |
Elliptic Nodes |
150
|
| 2025-02-22T00:02:31Z |
Elliptic Curves |
ProSign 3 |
100
|
| 2025-02-21T22:08:59Z |
Elliptic Curves |
Curveball |
100
|
| 2025-02-21T09:10:43Z |
Elliptic Curves |
Digestive |
60
|
| 2025-02-21T04:05:44Z |
Elliptic Curves |
Micro Transmissions |
120
|
| 2025-02-20T03:54:09Z |
Elliptic Curves |
Exceptional Curves |
100
|
| 2025-02-20T03:38:43Z |
Elliptic Curves |
Smooth Criminal |
60
|
| 2025-02-20T00:57:06Z |
Mathematics |
Ellipse Curve Cryptography |
125
|
| 2025-02-18T20:32:02Z |
Mathematics |
Prime and Prejudice |
200
|
| 2025-02-15T21:36:25Z |
Mathematics |
Cofactor Cofantasy |
150
|
| 2025-02-15T16:35:40Z |
Mathematics |
Roll your Own |
125
|
| 2025-02-14T21:01:05Z |
Mathematics |
Modular Binomials |
80
|
| 2025-02-14T06:58:39Z |
Mathematics |
No Way Back Home |
100
|
| 2025-02-13T20:32:58Z |
Mathematics |
Unencryptable |
125
|
| 2025-02-11T23:12:38Z |
RSA |
Vote for Pedro |
150
|
| 2025-02-11T19:21:46Z |
RSA |
Let's Decrypt Again |
175
|
| 2025-02-10T17:53:31Z |
RSA |
RSA Backdoor Viability |
175
|
| 2025-02-10T00:05:30Z |
Diffie-Hellman |
The Matrix |
75
|
| 2025-02-06T19:11:56Z |
RSA |
Bespoke Padding |
100
|
| 2025-02-06T17:25:22Z |
RSA |
Endless Emails |
150
|
| 2025-02-06T12:35:55Z |
RSA |
Everything is Still Big |
100
|
| 2025-02-06T07:34:45Z |
RSA |
Null or Never |
100
|
| 2025-02-06T00:21:16Z |
RSA |
Ron was Wrong, Whit is Right |
90
|
| 2025-02-05T22:48:53Z |
RSA |
Fast Primes |
75
|
| 2025-02-05T21:37:25Z |
RSA |
Marin's Secrets |
50
|
| 2025-02-05T12:22:48Z |
Misc |
RSA vs RNG |
150
|
| 2025-02-05T09:38:29Z |
Misc |
Lo-Hi Card Game |
120
|
| 2025-02-04T21:43:19Z |
Misc |
No Leaks |
100
|
| 2025-02-03T12:16:19Z |
Crypto on the Web |
Authenticated Handshake |
40
|
| 2025-02-03T10:53:05Z |
Crypto on the Web |
Decrypting TLS 1.3 |
35
|
| 2025-02-03T09:27:30Z |
Crypto on the Web |
Decrypting TLS 1.2 |
30
|
| 2025-02-03T09:14:32Z |
Crypto on the Web |
Saying Hello |
20
|
| 2025-02-03T08:58:01Z |
Crypto on the Web |
TLS Handshake |
15
|
| 2025-02-03T08:19:16Z |
Crypto on the Web |
Sharks on the Wire |
10
|
| 2025-02-03T07:07:17Z |
Crypto on the Web |
RSA or HMAC? Part 2 |
100
|
| 2025-01-31T17:24:02Z |
Misc |
Gotta Go Fast |
40
|
| 2025-01-28T19:26:44Z |
Hash Functions |
No Difference |
175
|
| 2025-01-28T10:02:48Z |
Symmetric Ciphers |
The Good, The Pad, The Ugly |
100
|
| 2025-01-27T13:36:33Z |
Symmetric Ciphers |
Pad Thai |
80
|
| 2025-01-26T17:59:22Z |
Hash Functions |
Twin Keys |
100
|
| 2025-01-26T17:53:47Z |
Symmetric Ciphers |
Lazy CBC |
60
|
| 2025-01-26T01:11:54Z |
Hash Functions |
MD0 |
80
|
| 2025-01-25T15:18:54Z |
Hash Functions |
PriMeD5 |
100
|
| 2025-01-25T13:53:04Z |
Hash Functions |
Hash Stuffing |
50
|
| 2025-01-25T13:02:26Z |
Hash Functions |
Collider |
50
|
| 2025-01-25T12:21:22Z |
Hash Functions |
Jack's Birthday Confusion |
30
|
| 2025-01-25T03:58:03Z |
Mathematics |
Broken RSA |
100
|
| 2025-01-25T03:28:10Z |
Mathematics |
Successive Powers |
60
|
| 2025-01-25T02:51:40Z |
RSA |
Blinding Light |
120
|
| 2025-01-24T10:28:36Z |
RSA |
Let's Decrypt |
80
|
| 2025-01-23T22:51:13Z |
Crypto on the Web |
JSON in JSON |
40
|
| 2025-01-23T17:59:54Z |
Crypto on the Web |
Secure Protocols |
5
|
| 2025-01-23T17:56:33Z |
Crypto on the Web |
RSA or HMAC? |
35
|
| 2025-01-23T15:29:17Z |
RSA |
Signing Server |
60
|
| 2025-01-23T13:42:13Z |
Crypto on the Web |
JWT Secrets |
25
|
| 2025-01-23T13:18:42Z |
Crypto on the Web |
No Way JOSE |
20
|
| 2025-01-23T12:30:21Z |
Crypto on the Web |
JWT Sessions |
10
|
| 2025-01-23T12:12:33Z |
Crypto on the Web |
Token Appreciation |
5
|
| 2025-01-22T23:34:39Z |
Symmetric Ciphers |
Logon Zero |
80
|
| 2025-01-22T09:43:07Z |
Symmetric Ciphers |
Stream of Consciousness |
80
|
| 2025-01-22T03:37:56Z |
RSA |
Infinite Descent |
50
|
| 2025-01-22T01:58:47Z |
RSA |
Crossed Wires |
100
|
| 2025-01-21T23:16:51Z |
RSA |
Everything is Big |
70
|
| 2025-01-21T16:17:43Z |
RSA |
Inferius Prime |
30
|
| 2025-01-21T15:14:21Z |
RSA |
Square Eyes |
35
|
| 2025-01-21T12:30:33Z |
Symmetric Ciphers |
CTRIME |
70
|
| 2025-01-21T11:17:50Z |
Symmetric Ciphers |
Triple DES |
60
|
| 2025-01-21T07:24:16Z |
Diffie-Hellman |
Script Kiddie |
70
|
| 2025-01-21T03:24:37Z |
Diffie-Hellman |
Static Client 2 |
120
|
| 2025-01-21T02:45:20Z |
Diffie-Hellman |
Additive |
70
|
| 2025-01-21T02:33:14Z |
Diffie-Hellman |
Static Client |
100
|
| 2025-01-20T23:00:48Z |
General |
Transparency |
50
|
| 2025-01-20T22:48:10Z |
General |
SSH Keys |
35
|
| 2025-01-20T22:32:03Z |
General |
CERTainly not |
30
|
| 2025-01-20T17:02:11Z |
General |
Privacy-Enhanced Mail? |
25
|
| 2025-01-20T16:53:34Z |
General |
Lemur XOR |
40
|
| 2025-01-20T15:33:21Z |
General |
Encoding Challenge |
40
|
| 2025-01-20T12:21:04Z |
Introduction |
Network Attacks |
5
|
| 2025-01-20T12:13:09Z |
Hash Functions |
Jack's Birthday Hash |
20
|
| 2025-01-20T09:14:03Z |
Elliptic Curves |
Efficient Exchange |
50
|
| 2025-01-20T08:44:47Z |
Elliptic Curves |
Curves and Logs |
40
|
| 2025-01-20T08:19:22Z |
Elliptic Curves |
Scalar Multiplication |
35
|
| 2025-01-20T08:10:38Z |
Elliptic Curves |
Point Addition |
30
|
| 2025-01-20T06:08:48Z |
Elliptic Curves |
Point Negation |
10
|
| 2025-01-20T05:40:56Z |
Elliptic Curves |
Background Reading |
5
|
| 2025-01-20T05:06:51Z |
Diffie-Hellman |
Export-grade |
100
|
| 2025-01-20T03:13:38Z |
Diffie-Hellman |
Parameter Injection |
60
|
| 2025-01-19T13:46:14Z |
Diffie-Hellman |
Deriving Symmetric Keys |
40
|
| 2025-01-19T13:18:03Z |
Diffie-Hellman |
Computing Shared Secrets |
30
|
| 2025-01-19T12:22:41Z |
Diffie-Hellman |
Computing Public Values |
25
|
| 2025-01-19T12:03:40Z |
Diffie-Hellman |
Generators of Groups |
20
|
| 2025-01-19T11:14:48Z |
Diffie-Hellman |
Working with Fields |
10
|
| 2025-01-19T11:10:55Z |
RSA |
Modulus Inutilis |
50
|
| 2025-01-19T10:45:49Z |
RSA |
Salty |
20
|
| 2025-01-19T07:25:06Z |
RSA |
Manyprime |
40
|
| 2025-01-19T04:38:01Z |
RSA |
Monoprime |
30
|
| 2025-01-19T04:01:46Z |
RSA |
Factoring |
15
|
| 2025-01-19T03:52:16Z |
RSA |
RSA Signatures |
25
|
| 2025-01-19T02:54:01Z |
Symmetric Ciphers |
Bean Counter |
60
|
| 2025-01-18T23:04:15Z |
Symmetric Ciphers |
Symmetry |
50
|
| 2025-01-18T01:41:24Z |
Symmetric Ciphers |
Flipping Cookie |
60
|
| 2025-01-18T00:34:26Z |
Symmetric Ciphers |
ECB CBC WTF |
55
|
| 2025-01-17T18:26:46Z |
RSA |
RSA Decryption |
20
|
| 2025-01-17T18:24:43Z |
RSA |
Private Keys |
20
|
| 2025-01-17T18:17:16Z |
RSA |
Euler's Totient |
20
|
| 2025-01-17T18:16:24Z |
RSA |
Public Keys |
15
|
| 2025-01-17T18:15:19Z |
RSA |
Modular Exponentiation |
10
|
| 2025-01-17T17:02:52Z |
Symmetric Ciphers |
ECB Oracle |
60
|
| 2025-01-17T03:29:09Z |
Symmetric Ciphers |
Passwords as Keys |
50
|
| 2025-01-17T03:15:16Z |
Symmetric Ciphers |
Modes of Operation Starter |
15
|
| 2025-01-17T00:05:54Z |
Symmetric Ciphers |
Bringing It All Together |
50
|
| 2025-01-16T13:01:06Z |
Symmetric Ciphers |
Diffusion through Permutation |
30
|
| 2025-01-16T03:38:38Z |
Symmetric Ciphers |
Confusion through Substitution |
25
|
| 2025-01-16T03:21:11Z |
Symmetric Ciphers |
Round Keys |
20
|
| 2025-01-16T02:34:03Z |
Symmetric Ciphers |
Structure of AES |
15
|
| 2025-01-16T02:13:19Z |
Symmetric Ciphers |
Resisting Bruteforce |
10
|
| 2025-01-16T01:58:55Z |
Symmetric Ciphers |
Keyed Permutations |
5
|
| 2025-01-14T22:23:50Z |
Mathematics |
Adrien's Signs |
80
|
| 2025-01-14T08:41:18Z |
Mathematics |
Chinese Remainder Theorem |
40
|
| 2025-01-14T08:37:53Z |
Mathematics |
Modular Square Root |
35
|
| 2025-01-14T08:33:24Z |
Mathematics |
Legendre Symbol |
35
|
| 2025-01-14T08:13:09Z |
Mathematics |
Quadratic Residues |
25
|
| 2025-01-14T08:08:32Z |
General |
Modular Inverting |
25
|
| 2025-01-14T08:05:09Z |
General |
Modular Arithmetic 2 |
20
|
| 2025-01-14T08:02:01Z |
General |
Modular Arithmetic 1 |
20
|
| 2025-01-14T08:00:43Z |
General |
Extended GCD |
20
|
| 2025-01-14T07:54:06Z |
General |
Greatest Common Divisor |
15
|
| 2025-01-14T03:52:01Z |
General |
You either know, XOR you don't |
30
|
| 2025-01-14T03:44:38Z |
General |
Favourite byte |
20
|
| 2025-01-14T03:37:19Z |
General |
XOR Properties |
15
|
| 2025-01-14T03:22:11Z |
General |
XOR Starter |
10
|
| 2025-01-14T03:18:01Z |
General |
Bytes and Big Integers |
10
|
| 2025-01-14T03:13:28Z |
General |
Base64 |
10
|
| 2025-01-14T02:50:30Z |
General |
Hex |
5
|
| 2025-01-14T02:41:03Z |
General |
ASCII |
5
|
| 2025-01-14T02:36:28Z |
Introduction |
Great Snakes |
3
|
| 2025-01-14T02:35:21Z |
Introduction |
Finding Flags |
2
|