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Submitted Solutions

Prime and Prejudice 1
Endless Emails 0

Solved Challenges

Hash Functions MDFlag 125
Symmetric Ciphers Forbidden Fruit 150
Symmetric Ciphers Oh SNAP 120
Misc Jeff's LFSR 150
Crypto on the Web Decrypting TLS 1.2 30
Crypto on the Web TLS Handshake 15
Hash Functions Twin Keys 100
Elliptic Curves Digestive 60
Diffie-Hellman The Matrix Revolutions 125
Symmetric Ciphers Paper Plane 120
Symmetric Ciphers Dancing Queen 120
Post-Quantum Nativity 60
Symmetric Ciphers Logon Zero 80
Post-Quantum Noise Free 40
RSA Fast Primes 75
Misc Nothing Up My Sleeve 150
Misc RSA vs RNG 150
Post-Quantum From Private to Public Key LWE 25
Post-Quantum LWE Low Bits Message 20
Post-Quantum LWE High Bits Message 15
Post-Quantum LWE Intro 10
Post-Quantum LWE Background 5
Hash Functions Invariant 250
CTF Archive Unimplemented (TETCTF) 0
Elliptic Curves No Random, No Bias 120
RSA RSA Backdoor Viability 175
Crypto on the Web RSA or HMAC? Part 2 100
Misc L-Win 120
Elliptic Curves Exceptional Curves 100
Elliptic Curves Edwards Goes Degenerate 100
Misc Bruce Schneier's Password 100
Elliptic Curves Moving Problems 150
Elliptic Curves Montgomery's Ladder 40
RSA Let's Decrypt Again 175
Elliptic Curves Micro Transmissions 120
Elliptic Curves Elliptic Nodes 150
Elliptic Curves ProSign 3 100
Elliptic Curves Curveball 100
RSA Everything is Still Big 100
Diffie-Hellman The Matrix Reloaded 100
Mathematics Real Eisenstein 150
Crypto on the Web Secure Protocols 5
Mathematics No Way Back Home 100
Hash Functions Mixed Up 120
Post-Quantum Too Many Errors 100
Hash Functions Hash Stuffing 50
Misc Bit by Bit 100
RSA Bespoke Padding 100
Hash Functions MD0 80
Diffie-Hellman The Matrix 75
Mathematics Backpack Cryptography 120
Misc Toshi's Treasure 150
Misc Armory 100
Misc Lo-Hi Card Game 120
Hash Functions No Difference 175
Hash Functions PriMeD5 100
Elliptic Curves Smooth Criminal 60
Crypto on the Web RSA or HMAC? 35
Mathematics Find the Lattice 100
Symmetric Ciphers CTRIME 70
Mathematics Cofactor Cofantasy 150
Hash Functions Collider 50
Symmetric Ciphers Triple DES 60
Symmetric Ciphers Stream of Consciousness 80
Crypto on the Web JSON in JSON 40
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
Symmetric Ciphers ECB Oracle 60
Misc No Leaks 100
RSA Let's Decrypt 80
RSA Ron was Wrong, Whit is Right 90
Mathematics Gaussian Reduction 50
RSA Everything is Big 70
Misc Gotta Go Fast 40
Mathematics Gram Schmidt 30
Diffie-Hellman Static Client 2 120
Diffie-Hellman Static Client 100
Mathematics Ellipse Curve Cryptography 125
RSA Vote for Pedro 150
Mathematics Prime and Prejudice 200
Diffie-Hellman Script Kiddie 70
Crypto on the Web JWT Secrets 25
General Transparency 50
Diffie-Hellman Export-grade 100
General Encoding Challenge 40
Elliptic Curves Efficient Exchange 50
Elliptic Curves Curves and Logs 40
General You either know, XOR you don't 30
RSA Blinding Light 120
RSA Signing Server 60
Crypto on the Web No Way JOSE 20
General SSH Keys 35
General CERTainly not 30
RSA RSA Starter 6 25
Diffie-Hellman Additive 70
Diffie-Hellman Parameter Injection 60
Symmetric Ciphers Passwords as Keys 50
General Privacy-Enhanced Mail? 25
General Favourite byte 20
Mathematics Roll your Own 125
Diffie-Hellman Diffie-Hellman Starter 5 40
Diffie-Hellman Diffie-Hellman Starter 4 30
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Symmetric Ciphers Modes of Operation Starter 15
General Lemur XOR 40
General XOR Properties 15
RSA Null or Never 100
RSA Endless Emails 150
RSA Crossed Wires 100
RSA Modulus Inutilis 50
Mathematics Unencryptable 125
Mathematics Vectors 10
RSA Marin's Secrets 50
Elliptic Curves Scalar Multiplication 35
Elliptic Curves Point Addition 30
General XOR Starter 10
RSA Salty 20
Mathematics Broken RSA 100
Symmetric Ciphers Bringing It All Together 50
Symmetric Ciphers Diffusion through Permutation 30
Elliptic Curves Point Negation 10
RSA Infinite Descent 50
RSA Manyprime 40
RSA Square Eyes 35
RSA Inferius Prime 30
RSA Monoprime 30
General Bytes and Big Integers 10
Mathematics Adrien's Signs 80
Symmetric Ciphers Confusion through Substitution 25
Mathematics What's a Lattice? 40
Mathematics Size and Basis 15
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Structure of AES 15
Mathematics Modular Square Root 35
Mathematics Successive Powers 60
Symmetric Ciphers Resisting Bruteforce 10
General Base64 10
Introduction Network Attacks 5
Mathematics Legendre Symbol 35
Symmetric Ciphers Keyed Permutations 5
Elliptic Curves Background Reading 5
Mathematics Modular Binomials 80
Mathematics Chinese Remainder Theorem 40
Diffie-Hellman Diffie-Hellman Starter 3 20
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 1 10
RSA Factoring 15
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 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 Hex 5
General ASCII 5
Introduction Finding Flags 2
Introduction Great Snakes 3

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