New Challenges

This page contains lists of recent and most difficult challenges. To play the challenges, please go to the challenges section.
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Recently Released
CategoryChallengePointsSolves
General Transparency 50 137 solves
RSA Let's Decrypt Again 175 26 solves
Misc Twin Keys 100 23 solves
Misc Invariant 250 15 solves
Misc No Difference 175 25 solves
Misc Trust Games 150 20 solves
Misc PriMeD5 100 50 solves
Mathematics Ellipse Curve Cryptography 125 48 solves
RSA Let's Decrypt 80 61 solves
Elliptic Curves No Random, No Bias 120 40 solves
Elliptic Curves Edwards Goes Degenerate 100 28 solves
Mathematics Size and Basis 15 458 solves
Mathematics Gaussian Reduction 50 271 solves
Mathematics Find the Lattice 100 137 solves
Mathematics Vectors 10 473 solves
Mathematics Backpack Cryptography 120 90 solves
Mathematics Gram Schmidt 30 298 solves
Mathematics What's a Lattice? 40 322 solves
Mathematics Unencryptable 125 98 solves
Misc Too Many Errors 100 68 solves
Block Ciphers Forbidden Fruit 150 69 solves
Misc Collider 50 155 solves
Misc MD0 80 91 solves
Block Ciphers Triple DES 60 107 solves
Mathematics Modular Square Root 35 534 solves
Mathematics Broken RSA 100 202 solves
Mathematics Real Eisenstein 150 73 solves
Block Ciphers Keyed Permutations 5 809 solves
Block Ciphers Structure of AES 15 565 solves
Block Ciphers Round Keys 20 518 solves
Block Ciphers Resisting Bruteforce 10 743 solves
Block Ciphers Confusion through Substitution 25 445 solves
Block Ciphers Bringing It All Together 50 336 solves
Block Ciphers Diffusion through Permutation 30 401 solves
RSA Bespoke Padding 100 118 solves
Misc Nothing Up My Sleeve 150 69 solves
Elliptic Curves Moving Problems 150 84 solves
Block Ciphers Paper Plane 120 114 solves
Mathematics Prime and Prejudice 200 95 solves
General XOR Properties 15 1797 solves
Misc Toshi's Treasure 150 96 solves
Mathematics Legendre Symbol 35 686 solves
Mathematics Quadratic Residues 25 1003 solves
RSA Crossed Wires 100 328 solves
Elliptic Curves Elliptic Nodes 150 93 solves
Diffie-Hellman Static Client 2 120 114 solves
Misc Bit by Bit 100 113 solves
Misc Lo-Hi Card Game 120 121 solves
Elliptic Curves Micro Transmissions 120 97 solves
Elliptic Curves Curveball 100 112 solves
 


Least Solved
CategoryChallengePointsSolves
Misc Invariant 250 15 solves
Misc Trust Games 150 20 solves
Misc Twin Keys 100 23 solves
Misc No Difference 175 25 solves
RSA Let's Decrypt Again 175 26 solves
Elliptic Curves Edwards Goes Degenerate 100 28 solves
Elliptic Curves No Random, No Bias 120 40 solves
Mathematics Ellipse Curve Cryptography 125 48 solves
Misc PriMeD5 100 50 solves
RSA Let's Decrypt 80 61 solves
Misc Too Many Errors 100 68 solves
Block Ciphers Forbidden Fruit 150 69 solves
Misc Nothing Up My Sleeve 150 69 solves
Mathematics Real Eisenstein 150 73 solves
Elliptic Curves Moving Problems 150 84 solves
Mathematics Backpack Cryptography 120 90 solves
Misc MD0 80 91 solves
Elliptic Curves Elliptic Nodes 150 93 solves
Mathematics Prime and Prejudice 200 95 solves
Misc Toshi's Treasure 150 96 solves
Elliptic Curves Micro Transmissions 120 97 solves
Mathematics Unencryptable 125 98 solves
Elliptic Curves ProSign 3 100 100 solves
Block Ciphers Triple DES 60 107 solves
Elliptic Curves Curveball 100 112 solves

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