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 50 224 solves
RSA Let's Decrypt Again 175 37 solves
Misc Twin Keys 100 30 solves
Misc Invariant 250 25 solves
Misc No Difference 175 35 solves
Misc Trust Games 150 28 solves
Misc PriMeD5 100 58 solves
Mathematics Ellipse Curve Cryptography 125 54 solves
RSA Let's Decrypt 80 74 solves
Elliptic Curves No Random, No Bias 120 47 solves
Elliptic Curves Edwards Goes Degenerate 100 35 solves
Mathematics Size and Basis 15 515 solves
Mathematics Gaussian Reduction 50 314 solves
Mathematics Find the Lattice 100 167 solves
Mathematics Vectors 10 534 solves
Mathematics Backpack Cryptography 120 105 solves
Mathematics Gram Schmidt 30 336 solves
Mathematics What's a Lattice? 40 369 solves
Mathematics Unencryptable 125 120 solves
Misc Too Many Errors 100 73 solves
Block Ciphers Forbidden Fruit 150 77 solves
Misc Collider 50 174 solves
Misc MD0 80 102 solves
Block Ciphers Triple DES 60 118 solves
Mathematics Modular Square Root 35 584 solves
Mathematics Broken RSA 100 221 solves
Mathematics Real Eisenstein 150 80 solves
Block Ciphers Keyed Permutations 5 918 solves
Block Ciphers Structure of AES 15 630 solves
Block Ciphers Round Keys 20 569 solves
Block Ciphers Resisting Bruteforce 10 837 solves
Block Ciphers Confusion through Substitution 25 493 solves
Block Ciphers Bringing It All Together 50 370 solves
Block Ciphers Diffusion through Permutation 30 443 solves
RSA Bespoke Padding 100 133 solves
Misc Nothing Up My Sleeve 150 72 solves
Elliptic Curves Moving Problems 150 91 solves
Block Ciphers Paper Plane 120 123 solves
Mathematics Prime and Prejudice 200 102 solves
General XOR Properties 15 1969 solves
Misc Toshi's Treasure 150 103 solves
Mathematics Legendre Symbol 35 742 solves
Mathematics Quadratic Residues 25 1086 solves
RSA Crossed Wires 100 360 solves
Elliptic Curves Elliptic Nodes 150 99 solves
Diffie-Hellman Static Client 2 120 120 solves
Misc Bit by Bit 100 119 solves
Misc Lo-Hi Card Game 120 129 solves
Elliptic Curves Micro Transmissions 120 104 solves
Elliptic Curves Curveball 100 121 solves
 


Least Solved
CategoryChallengePointsSolves
Misc Invariant 250 25 solves
Misc Trust Games 150 28 solves
Misc Twin Keys 100 30 solves
Elliptic Curves Edwards Goes Degenerate 100 35 solves
Misc No Difference 175 35 solves
RSA Let's Decrypt Again 175 37 solves
Elliptic Curves No Random, No Bias 120 47 solves
Mathematics Ellipse Curve Cryptography 125 54 solves
Misc PriMeD5 100 58 solves
Misc Nothing Up My Sleeve 150 72 solves
Misc Too Many Errors 100 73 solves
RSA Let's Decrypt 80 74 solves
Block Ciphers Forbidden Fruit 150 77 solves
Mathematics Real Eisenstein 150 80 solves
Elliptic Curves Moving Problems 150 91 solves
Elliptic Curves Elliptic Nodes 150 99 solves
Misc MD0 80 102 solves
Mathematics Prime and Prejudice 200 102 solves
Misc Toshi's Treasure 150 103 solves
Elliptic Curves Micro Transmissions 120 104 solves
Mathematics Backpack Cryptography 120 105 solves
Elliptic Curves ProSign 3 100 107 solves
Block Ciphers Triple DES 60 118 solves
Misc Bit by Bit 100 119 solves
Mathematics Unencryptable 125 120 solves

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