ciphr

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Level: md5
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Submitted Solutions

Trust Games 1
No Random, No Bias 3
No Difference 1
Let's Decrypt Again 5
Unencryptable 1
Prime and Prejudice 2

Solved Challenges

Misc Invariant 250
Misc Trust Games 150
Misc No Difference 175
Elliptic Curves Edwards Goes Degenerate 100
General Transparency 50
RSA Let's Decrypt Again 175
Misc Twin Keys 100
Mathematics Ellipse Curve Cryptography 125
Elliptic Curves No Random, No Bias 120
RSA Let's Decrypt 80
Misc PriMeD5 100
Mathematics Backpack Cryptography 120
Mathematics Find the Lattice 100
Mathematics Gaussian Reduction 50
Mathematics What's a Lattice? 40
Mathematics Gram Schmidt 30
Misc MD0 80
Misc Too Many Errors 100
Mathematics Size and Basis 15
Mathematics Vectors 10
Misc Collider 50
Block Ciphers Triple DES 60
Block Ciphers Forbidden Fruit 150
Mathematics Unencryptable 125
Elliptic Curves Elliptic Nodes 150
Elliptic Curves Moving Problems 150
Elliptic Curves Micro Transmissions 120
Elliptic Curves ProSign 3 100
Elliptic Curves Curveball 100
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 Point Negation 10
Elliptic Curves Background Reading 5
Mathematics Real Eisenstein 150
Misc Nothing Up My Sleeve 150
Diffie-Hellman Static Client 2 120
Diffie-Hellman Static Client 100
Misc Lo-Hi Card Game 120
Misc Toshi's Treasure 150
Misc Armory 100
Misc Bit by Bit 100
Misc No Leaks 100
Misc Gotta Go Fast 40
Diffie-Hellman Script Kiddie 70
Diffie-Hellman Additive 70
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
Diffie-Hellman Diffie-Hellman Starter 1 10
Mathematics Broken RSA 100
Mathematics Modular Square Root 35
RSA Bespoke Padding 100
Block Ciphers Paper Plane 120
Block Ciphers Bringing It All Together 50
Block Ciphers Diffusion through Permutation 30
Block Ciphers Confusion through Substitution 25
Block Ciphers Round Keys 20
Block Ciphers Structure of AES 15
Block Ciphers Resisting Bruteforce 10
Block Ciphers Keyed Permutations 5
RSA Vote for Pedro 150
RSA Blinding Light 120
RSA Signing Server 60
RSA Null or Never 100
RSA Ron was Wrong, Whit is Right 90
RSA Endless Emails 150
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Fast Primes 75
RSA Everything is Still Big 100
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
RSA Factoring 15
Mathematics Prime and Prejudice 200
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Mathematics Legendre Symbol 35
General XOR Properties 15
Mathematics Quadratic Residues 25
Block Ciphers CTRIME 70
Block Ciphers Stream of Consciousness 80
Block Ciphers Bean Counter 60
Block Ciphers Symmetry 50
Block Ciphers Lazy CBC 60
RSA RSA Starter 6 25
RSA RSA Starter 5 20
RSA RSA Starter 4 20
RSA RSA Starter 3 20
RSA RSA Starter 1 10
RSA RSA Starter 2 15
Block Ciphers Flipping Cookie 60
Block Ciphers ECB CBC WTF 55
Block Ciphers ECB Oracle 60
Block Ciphers Passwords as Keys 50
Block Ciphers Block Cipher Mode Starter 15
Mathematics Successive Powers 60
General CERTainly not 30
General Privacy-Enhanced Mail? 25
Mathematics Chinese Remainder Theorem 40
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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