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Solved Challenges

Hash Functions Hash Stuffing 50
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Symmetric Ciphers Dancing Queen 120
Symmetric Ciphers Logon Zero 80
Symmetric Ciphers Triple DES 60
Crypto on the Web JSON in JSON 40
Crypto on the Web RSA or HMAC? 35
General SSH Keys 35
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 Token Appreciation 5
Symmetric Ciphers Stream of Consciousness 80
RSA Null or Never 100
General Transparency 50
RSA Bespoke Padding 100
RSA Blinding Light 120
RSA Ron was Wrong, Whit is Right 90
Elliptic Curves Exceptional Curves 100
Elliptic Curves Smooth Criminal 60
RSA Endless Emails 150
Symmetric Ciphers CTRIME 70
Hash Functions MD0 80
Mathematics Modular Binomials 80
Mathematics Successive Powers 60
Mathematics Adrien's Signs 80
Mathematics Find the Lattice 100
RSA Fast Primes 75
Elliptic Curves Efficient Exchange 50
RSA Marin's Secrets 50
RSA Infinite Descent 50
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB CBC WTF 55
Diffie-Hellman Export-grade 100
Symmetric Ciphers ECB Oracle 60
Diffie-Hellman Additive 70
RSA Signing Server 60
RSA Everything is Still Big 100
RSA Crossed Wires 100
RSA Everything is Big 70
RSA Square Eyes 35
RSA Manyprime 40
RSA Modulus Inutilis 50
RSA Salty 20
RSA Monoprime 30
RSA Inferius Prime 30
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Hash Functions Collider 50
Mathematics Gaussian Reduction 50
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
Mathematics Size and Basis 15
Mathematics Vectors 10
RSA Factoring 15
RSA RSA Starter 6 25
RSA RSA Starter 5 20
RSA RSA Starter 4 20
RSA RSA Starter 3 20
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Diffie-Hellman Starter 5 40
Diffie-Hellman Diffie-Hellman Starter 4 30
Diffie-Hellman Diffie-Hellman Starter 3 20
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
Mathematics Quadratic Residues 25
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 1 10
General CERTainly not 30
General XOR Properties 15
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
Misc No Leaks 100
Misc Gotta Go Fast 40
RSA RSA Starter 2 15
RSA RSA Starter 1 10
General Privacy-Enhanced Mail? 25
Mathematics Chinese Remainder Theorem 40
Symmetric Ciphers Modes of Operation Starter 15
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
General Lemur XOR 40
General You either know, XOR you don't 30
General Encoding Challenge 40
General Bytes and Big Integers 10
General Base64 10
General Favourite byte 20
General XOR Starter 10
General Hex 5
General ASCII 5
Introduction Network Attacks 5
Introduction Finding Flags 2
Introduction Great Snakes 3

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