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Submitted Solutions

Broken RSA 16

Solved Challenges

Elliptic Curves Moving Problems 150
Mathematics Prime and Prejudice 200
Mathematics Unencryptable 125
Symmetric Ciphers Forbidden Fruit 150
Elliptic Curves Edwards Goes Degenerate 100
Elliptic Curves ProSign 3 100
Elliptic Curves Curveball 100
Elliptic Curves Elliptic Nodes 150
Elliptic Curves Double and Broken 50
Elliptic Curves Montgomery's Ladder 40
Diffie-Hellman The Matrix Reloaded 100
Misc Bit by Bit 100
RSA Blinding Light 120
RSA Ron was Wrong, Whit is Right 90
RSA Bespoke Padding 100
Mathematics Roll your Own 125
Diffie-Hellman The Matrix 75
Crypto on the Web RSA or HMAC? Part 2 100
General SSH Keys 35
Mathematics Broken RSA 100
Misc No Leaks 100
Mathematics Modular Binomials 80
Symmetric Ciphers Triple DES 60
Misc Bruce Schneier's Password 100
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
Misc Nothing Up My Sleeve 150
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Additive 70
Diffie-Hellman Static Client 2 120
Diffie-Hellman Static Client 100
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
RSA Endless Emails 150
RSA Let's Decrypt 80
RSA Signing Server 60
RSA Fast Primes 75
RSA Everything is Still Big 100
RSA Null or Never 100
Mathematics Backpack Cryptography 120
Mathematics Adrien's Signs 80
Mathematics Successive Powers 60
Hash Functions Jack's Birthday Hash 20
Hash Functions Jack's Birthday Confusion 30
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 RSA or HMAC? 35
Hash Functions MD0 80
Misc Gotta Go Fast 40
Hash Functions Collider 50
Crypto on the Web JSON in JSON 40
Elliptic Curves Exceptional Curves 100
Elliptic Curves Smooth Criminal 60
Elliptic Curves Efficient Exchange 50
Elliptic Curves Curves and Logs 40
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Mathematics Find the Lattice 100
Mathematics Gaussian Reduction 50
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
Mathematics Size and Basis 15
Diffie-Hellman Diffie-Hellman Starter 5 40
Diffie-Hellman Diffie-Hellman Starter 4 30
Diffie-Hellman Diffie-Hellman Starter 3 20
Diffie-Hellman Diffie-Hellman Starter 2 20
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Crossed Wires 100
Mathematics Vectors 10
RSA Everything is Big 70
RSA Modulus Inutilis 50
RSA Salty 20
RSA Manyprime 40
RSA Square Eyes 35
RSA Monoprime 30
RSA Inferius Prime 30
RSA Factoring 15
RSA RSA Starter 6 25
RSA RSA Starter 5 20
RSA RSA Starter 4 20
RSA RSA Starter 3 20
RSA RSA Starter 2 15
RSA RSA Starter 1 10
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
General Transparency 50
General CERTainly not 30
General Privacy-Enhanced Mail? 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
Diffie-Hellman Diffie-Hellman Starter 1 10
Crypto on the Web Token Appreciation 5
General Lemur XOR 40
General You either know, XOR you don't 30
General Favourite byte 20
General XOR Properties 15
General XOR Starter 10
General Encoding Challenge 40
General Bytes and Big Integers 10
General Base64 10
General Hex 5
General ASCII 5
Introduction Network Attacks 5
Introduction Great Snakes 3
Introduction Finding Flags 2

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