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Submitted Solutions

Merkle Trees 0

Solved Challenges

Lattices Bounded Noise 50
Symmetric Ciphers The Good, The Pad, The Ugly 100
Symmetric Ciphers Pad Thai 80
Symmetric Ciphers Oh SNAP 120
Misc Nothing Up My Sleeve 150
Misc RSA vs RNG 150
Hash Functions WOTS Up 2 90
Hash Functions WOTS Up 75
Hash Functions Merkle Trees 25
Isogenies Three Isogenies 35
Isogenies Two Isogenies 30
Isogenies Montgomery Curves 30
Isogenies Image Point Arithmetic 30
Isogenies Where's the Supersingular Curve 25
Isogenies Introduction to Isogenies 10
Elliptic Curves Checkpoint 150
ZKPs Pairing-Based Cryptography 50
ZKPs Non-Interactive 35
ZKPs Too Honest 50
ZKPs Honest Verifier Zero Knowledge 30
ZKPs Special Soundness 25
ZKPs Proofs of Knowledge 20
Isogenies The j-invariant 20
ZKPs ZKP Introduction 5
Misc Toshi's Treasure 150
Symmetric Ciphers Paper Plane 120
Elliptic Curves No Random, No Bias 120
Misc Trust Games 150
Misc Jeff's LFSR 150
Misc Lo-Hi Card Game 120
Hash Functions Mixed Up 120
Hash Functions PriMeD5 100
Elliptic Curves Double and Broken 50
Symmetric Ciphers Dancing Queen 120
Diffie-Hellman The Matrix Revolutions 125
Diffie-Hellman The Matrix Reloaded 100
Elliptic Curves Digestive 60
Mathematics No Way Back Home 100
Mathematics Roll your Own 125
Symmetric Ciphers Forbidden Fruit 150
Mathematics Real Eisenstein 150
RSA Let's Decrypt Again 175
RSA Let's Decrypt 80
Crypto on the Web Decrypting TLS 1.3 35
Lattices Noise Free 40
Lattices From Private to Public Key LWE 25
Lattices LWE Low Bits Message 20
Lattices LWE High Bits Message 15
Hash Functions Hash Stuffing 50
Lattices LWE Intro 10
Lattices LWE Background 5
Crypto on the Web Decrypting TLS 1.2 30
Misc Bit by Bit 100
Misc L-Win 120
Hash Functions Twin Keys 100
Crypto on the Web Saying Hello 20
Crypto on the Web Sharks on the Wire 10
Crypto on the Web TLS Handshake 15
Crypto on the Web Secure Protocols 5
Elliptic Curves ProSign 3 100
Elliptic Curves Curveball 100
Elliptic Curves Micro Transmissions 120
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers Triple DES 60
Symmetric Ciphers ECB Oracle 60
Hash Functions MD0 80
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Bean Counter 60
Lattices Backpack Cryptography 120
Elliptic Curves Elliptic Nodes 150
Elliptic Curves Moving Problems 150
Diffie-Hellman The Matrix 75
Lattices Too Many Errors 100
RSA Vote for Pedro 150
Hash Functions Collider 50
Diffie-Hellman Static Client 2 120
Misc Bruce Schneier's Password 100
Crypto on the Web JSON in JSON 40
General Transparency 50
Symmetric Ciphers Keyed Permutations 5
Elliptic Curves Edwards Goes Degenerate 100
Diffie-Hellman Static Client 100
Mathematics Broken RSA 100
Mathematics Cofactor Cofantasy 150
Mathematics Unencryptable 125
Elliptic Curves Montgomery's Ladder 40
Mathematics Ellipse Curve Cryptography 125
Elliptic Curves Background Reading 5
Mathematics Modular Binomials 80
Symmetric Ciphers Logon Zero 80
Diffie-Hellman Additive 70
Elliptic Curves Exceptional Curves 100
RSA Crossed Wires 100
Lattices Find the Lattice 100
General SSH Keys 35
General CERTainly not 30
General Privacy-Enhanced Mail? 25
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers Bringing It All Together 50
Diffie-Hellman Export-grade 100
Misc Armory 100
Diffie-Hellman Script Kiddie 70
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
Mathematics Adrien's Signs 80
RSA Blinding Light 120
RSA Bespoke Padding 100
General XOR Properties 15
RSA Signing Server 60
RSA Null or Never 100
RSA Manyprime 40
RSA Inferius Prime 30
RSA RSA Backdoor Viability 175
RSA Ron was Wrong, Whit is Right 90
RSA Endless Emails 150
RSA Fast Primes 75
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Everything is Still Big 100
RSA Everything is Big 70
RSA Factoring 15
RSA Modulus Inutilis 50
RSA Salty 20
RSA Square Eyes 35
RSA Monoprime 30
RSA RSA Signatures 25
RSA RSA Decryption 20
RSA Private Keys 20
Lattices Gaussian Reduction 50
Lattices What's a Lattice? 40
Lattices Gram Schmidt 30
Mathematics Prime and Prejudice 200
Mathematics Successive Powers 60
Elliptic Curves Point Negation 10
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
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
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Diffusion through Permutation 30
Symmetric Ciphers Confusion through Substitution 25
Symmetric Ciphers Round Keys 20
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Symmetric Ciphers ECB CBC WTF 55
Misc No Leaks 100
Misc Gotta Go Fast 40
Hash Functions No Difference 175
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Resisting Bruteforce 10
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Lattices Size and Basis 15
Lattices Vectors 10
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 Favourite byte 20
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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