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Submitted Solutions

Prime and Prejudice 1
RSA Backdoor Viability 1
Fast Primes 2
Beatboxer 0
Real Curve Crypto 3

Solved Challenges

CTF Archive 1337crypt 0
Mathematics Prime and Prejudice 200
RSA RSA Backdoor Viability 175
Hash Functions MDFlag 125
Hash Functions Twin Keys 100
RSA Fast Primes 75
RSA Everything is Still Big 100
RSA Endless Emails 150
Misc LFSR Destroyer 250
Elliptic Curves Moving Problems 150
Symmetric Ciphers Oh SNAP 120
Misc Jeff's LFSR 150
Hash Functions Invariant 250
Mathematics Backpack Cryptography 120
Misc Trust Games 150
Symmetric Ciphers Beatboxer 150
Symmetric Ciphers Dancing Queen 120
Elliptic Curves No Random, No Bias 120
Mathematics Real Eisenstein 150
Mathematics Cofactor Cofantasy 150
Elliptic Curves Double and Broken 50
RSA Null or Never 100
Misc Bruce Schneier's Password: Part 2 250
Symmetric Ciphers Forbidden Fruit 150
RSA Let's Decrypt Again 175
RSA Let's Decrypt 80
Crypto on the Web RSA or HMAC? Part 2 100
Crypto on the Web RSA or HMAC? 35
Symmetric Ciphers Paper Plane 120
Symmetric Ciphers Logon Zero 80
Mathematics Find the Lattice 100
Misc Toshi's Treasure 150
Hash Functions PriMeD5 100
Hash Functions No Difference 175
RSA Ron was Wrong, Whit is Right 90
Misc Too Many Errors 100
Crypto on the Web JSON in JSON 40
Elliptic Curves Montgomery's Ladder 40
RSA Everything is Big 70
Misc Armory 100
Misc L-Win 120
Diffie-Hellman Static Client 2 120
Diffie-Hellman Static Client 100
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Triple DES 60
Mathematics Gram Schmidt 30
Misc Nothing Up My Sleeve 150
Elliptic Curves ProSign 3 100
Elliptic Curves Curveball 100
Hash Functions MD0 80
RSA Manyprime 40
Crypto on the Web JWT Secrets 25
Diffie-Hellman The Matrix Revolutions 125
Diffie-Hellman The Matrix Reloaded 100
RSA Infinite Descent 50
RSA Salty 20
RSA Inferius Prime 30
Crypto on the Web No Way JOSE 20
General Transparency 50
Symmetric Ciphers ECB Oracle 60
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
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Bean Counter 60
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Modes of Operation Starter 15
Elliptic Curves Edwards Goes Degenerate 100
Misc Bruce Schneier's Password 100
Misc Bit by Bit 100
Symmetric Ciphers Passwords as Keys 50
Symmetric Ciphers Stream of Consciousness 80
Hash Functions Mixed Up 120
Elliptic Curves Micro Transmissions 120
Mathematics Modular Square Root 35
Mathematics Broken RSA 100
General CERTainly not 30
General Privacy-Enhanced Mail? 25
Elliptic Curves Elliptic Nodes 150
Mathematics No Way Back Home 100
Mathematics Chinese Remainder Theorem 40
General SSH Keys 35
General Encoding Challenge 40
RSA Marin's Secrets 50
RSA Crossed Wires 100
Hash Functions Hash Stuffing 50
Hash Functions Collider 50
RSA Factoring 15
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers Lazy CBC 60
Symmetric Ciphers ECB CBC WTF 55
Crypto on the Web TLS Handshake 15
Crypto on the Web Sharks on the Wire 10
General Extended GCD 20
Elliptic Curves Exceptional Curves 100
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 Real Curve Crypto 200
Symmetric Ciphers Keyed Permutations 5
Misc Gotta Go Fast 40
Misc No Leaks 100
Mathematics Unencryptable 125
Mathematics Ellipse Curve Cryptography 125
Mathematics Size and Basis 15
Diffie-Hellman The Matrix 75
RSA Blinding Light 120
RSA Signing Server 60
General Lemur XOR 40
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
Mathematics Roll your Own 125
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Export-grade 100
Diffie-Hellman Parameter Injection 60
Diffie-Hellman Additive 70
Diffie-Hellman Diffie-Hellman Starter 5 40
RSA RSA Starter 6 25
RSA Square Eyes 35
Crypto on the Web JWT Sessions 10
Crypto on the Web Token Appreciation 5
Crypto on the Web Secure Protocols 5
Crypto on the Web Saying Hello 20
Mathematics What's a Lattice? 40
Mathematics Gaussian Reduction 50
RSA Bespoke Padding 100
RSA Vote for Pedro 150
RSA Modulus Inutilis 50
RSA Monoprime 30
General Greatest Common Divisor 15
General Bytes and Big Integers 10
Mathematics Adrien's Signs 80
Elliptic Curves Point Negation 10
Elliptic Curves Background Reading 5
Mathematics Modular Binomials 80
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
Diffie-Hellman Diffie-Hellman Starter 4 30
Diffie-Hellman Diffie-Hellman Starter 3 20
Diffie-Hellman Diffie-Hellman Starter 2 20
Diffie-Hellman Diffie-Hellman Starter 1 10
General Modular Arithmetic 1 20
General Modular Arithmetic 2 20
General Modular Inverting 25
Hash Functions Jack's Birthday Confusion 30
Hash Functions Jack's Birthday Hash 20
Misc Lo-Hi Card Game 120
General You either know, XOR you don't 30
General Favourite byte 20
General XOR Properties 15
General XOR Starter 10
Mathematics Successive Powers 60
Mathematics Vectors 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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