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Solved Challenges

Elliptic Curves Micro Transmissions 120
Elliptic Curves Digestive 60
RSA Null or Never 100
Mathematics Unencryptable 125
Misc Bit by Bit 100
Misc Toshi's Treasure 150
Misc Armory 100
Misc Bruce Schneier's Password 100
Mathematics Broken RSA 100
Mathematics Modular Binomials 80
Symmetric Ciphers Oh SNAP 120
Hash Functions Mixed Up 120
Crypto on the Web Megalomaniac 3 120
Crypto on the Web Megalomaniac 1 100
Crypto on the Web Authenticated Handshake 40
Crypto on the Web Decrypting TLS 1.3 35
Crypto on the Web Decrypting TLS 1.2 30
Crypto on the Web Saying Hello 20
Crypto on the Web TLS Handshake 15
Crypto on the Web Sharks on the Wire 10
Crypto on the Web Secure Protocols 5
Hash Functions No Difference 175
Symmetric Ciphers Beatboxer 150
Symmetric Ciphers Paper Plane 120
Crypto on the Web RSA or HMAC? Part 2 100
Mathematics Adrien's Signs 80
Diffie-Hellman Static Client 2 120
Diffie-Hellman Static Client 100
Elliptic Curves Exceptional Curves 100
Symmetric Ciphers Dancing Queen 120
Hash Functions Hash Stuffing 50
General SSH Keys 35
RSA RSA Backdoor Viability 175
RSA Ron was Wrong, Whit is Right 90
RSA Fast Primes 75
RSA Endless Emails 150
RSA Everything is Still Big 100
Elliptic Curves ProSign 3 100
Elliptic Curves Curveball 100
Symmetric Ciphers Forbidden Fruit 150
Hash Functions Twin Keys 100
Mathematics Successive Powers 60
Hash Functions Jack's Birthday Hash 20
RSA Signing Server 60
RSA Marin's Secrets 50
RSA Infinite Descent 50
Symmetric Ciphers Triple DES 60
Symmetric Ciphers Logon Zero 80
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Bringing It All Together 50
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
Hash Functions PriMeD5 100
Hash Functions MD0 80
Crypto on the Web JSON in JSON 40
Elliptic Curves Background Reading 5
Hash Functions Jack's Birthday Confusion 30
RSA Crossed Wires 100
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
Symmetric Ciphers ECB CBC WTF 55
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Hash Functions Collider 50
Diffie-Hellman Export-grade 100
Diffie-Hellman Additive 70
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Diffie-Hellman Starter 5 40
Diffie-Hellman Diffie-Hellman Starter 2 20
Misc No Leaks 100
Misc Gotta Go Fast 40
Crypto on the Web RSA or HMAC? 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
Diffie-Hellman Diffie-Hellman Starter 4 30
Diffie-Hellman Diffie-Hellman Starter 3 20
Diffie-Hellman Diffie-Hellman Starter 1 10
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
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
General Transparency 50
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
Mathematics Size and Basis 15
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Vectors 10
Mathematics Quadratic Residues 25
General Modular Inverting 25
General CERTainly not 30
General Privacy-Enhanced Mail? 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 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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