Machina

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Submitted Solutions

Dancing Queen 1
Flipping Cookie 0
Bean Counter 0
Ron was Wrong, Whit is Right 1
Encoding Challenge 1

Solved Challenges

Elliptic Curves Edwards Goes Degenerate 100
Symmetric Ciphers Beatboxer 150
Misc Lo-Hi Card Game 120
Symmetric Ciphers Paper Plane 120
Post-Quantum LWE Low Bits Message 20
Post-Quantum From Private to Public Key LWE 25
Post-Quantum LWE High Bits Message 15
Post-Quantum LWE Intro 10
Post-Quantum LWE Background 5
Elliptic Curves Digestive 60
Crypto on the Web Decrypting TLS 1.3 35
Crypto on the Web Decrypting TLS 1.2 30
Mathematics Backpack Cryptography 120
Mathematics Find the Lattice 100
Misc Armory 100
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
Diffie-Hellman Static Client 100
Symmetric Ciphers Oh SNAP 120
Symmetric Ciphers Stream of Consciousness 80
Mathematics Prime and Prejudice 200
Mathematics Gaussian Reduction 50
RSA Vote for Pedro 150
Symmetric Ciphers Logon Zero 80
Misc L-Win 120
Elliptic Curves Micro Transmissions 120
Elliptic Curves ProSign 3 100
Elliptic Curves Curveball 100
Diffie-Hellman Script Kiddie 70
Mathematics What's a Lattice? 40
Elliptic Curves Elliptic Nodes 150
Elliptic Curves Moving Problems 150
Diffie-Hellman The Matrix 75
Elliptic Curves Exceptional Curves 100
Hash Functions Hash Stuffing 50
Mathematics Unencryptable 125
Symmetric Ciphers Dancing Queen 120
Mathematics Broken RSA 100
Hash Functions MD0 80
Mathematics Successive Powers 60
Mathematics Adrien's Signs 80
Mathematics Modular Binomials 80
Misc Gotta Go Fast 40
Hash Functions Collider 50
Elliptic Curves Smooth Criminal 60
Symmetric Ciphers CTRIME 70
Mathematics Gram Schmidt 30
RSA Let's Decrypt 80
Misc No Leaks 100
Elliptic Curves Efficient Exchange 50
Elliptic Curves Curves and Logs 40
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
Symmetric Ciphers Triple DES 60
Crypto on the Web RSA or HMAC? Part 2 100
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers Lazy CBC 60
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
Diffie-Hellman Additive 70
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
RSA Blinding Light 120
RSA Endless Emails 150
Diffie-Hellman Export-grade 100
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
Diffie-Hellman Diffie-Hellman Starter 2 20
Symmetric Ciphers Bean Counter 60
Crypto on the Web JSON in JSON 40
RSA Bespoke Padding 100
RSA Ron was Wrong, Whit is Right 90
RSA Fast Primes 75
RSA Signing Server 60
General SSH Keys 35
RSA Null or Never 100
Symmetric Ciphers Symmetry 50
Symmetric Ciphers ECB CBC WTF 55
Crypto on the Web RSA or HMAC? 35
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Modes of Operation Starter 15
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
RSA RSA Backdoor Viability 175
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
General Transparency 50
General CERTainly not 30
Diffie-Hellman Diffie-Hellman Starter 1 10
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Everything is Still Big 100
RSA Crossed Wires 100
RSA Everything is Big 70
RSA Modulus Inutilis 50
RSA Monoprime 30
RSA Manyprime 40
RSA Square Eyes 35
General Privacy-Enhanced Mail? 25
RSA Salty 20
RSA Inferius Prime 30
RSA RSA Starter 6 25
RSA RSA Starter 5 20
RSA RSA Starter 4 20
RSA Factoring 15
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
RSA RSA Starter 3 20
RSA RSA Starter 2 15
RSA RSA Starter 1 10
Mathematics Size and Basis 15
Mathematics Vectors 10
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
General Modular Inverting 25
General Modular Arithmetic 2 20
General Modular Arithmetic 1 20
General Extended GCD 20
General Greatest Common Divisor 15
General You either know, XOR you don't 30
General Favourite byte 20
General XOR Properties 15
General Lemur XOR 40
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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