Bhumikasarmaal

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Solved Challenges

Crypto on the Web JWT Secrets 25
Crypto on the Web No Way JOSE 20
Crypto on the Web JWT Sessions 10
Hash Functions Jack's Birthday Confusion 30
Symmetric Ciphers Oh SNAP 120
Symmetric Ciphers Dancing Queen 120
Symmetric Ciphers Stream of Consciousness 80
Symmetric Ciphers Logon Zero 80
Symmetric Ciphers CTRIME 70
Symmetric Ciphers Symmetry 50
Symmetric Ciphers Triple DES 60
Symmetric Ciphers Lazy CBC 60
Crypto on the Web Token Appreciation 5
Hash Functions Jack's Birthday Hash 20
Lattices From Private to Public Key LWE 25
Lattices Find the Lattice 100
Lattices Gaussian Reduction 50
Lattices What's a Lattice? 40
Lattices Gram Schmidt 30
Lattices Size and Basis 15
Lattices Vectors 10
RSA Manyprime 40
RSA Inferius Prime 30
Isogenies Special Isogenies 30
Isogenies Composite Isogenies 60
Isogenies Two Isogenies 30
Isogenies Three Isogenies 35
Isogenies Where's the Supersingular Curve 25
Isogenies Montgomery Curves 30
Isogenies Image Point Arithmetic 30
Isogenies The j-invariant 20
Isogenies Introduction to Isogenies 10
Diffie-Hellman Deriving Symmetric Keys 40
Diffie-Hellman Computing Shared Secrets 30
Diffie-Hellman Computing Public Values 25
Elliptic Curves Efficient Exchange 50
Mathematics Successive Powers 60
General Transparency 50
RSA Factoring 15
RSA Marin's Secrets 50
RSA Infinite Descent 50
RSA Square Eyes 35
RSA Monoprime 30
Symmetric Ciphers Bean Counter 60
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
Diffie-Hellman Generators of Groups 20
Diffie-Hellman Working with Fields 10
RSA RSA Signatures 25
RSA RSA Decryption 20
RSA Private Keys 20
RSA Euler's Totient 20
RSA Public Keys 15
RSA Modular Exponentiation 10
Mathematics Modular Binomials 80
Mathematics Adrien's Signs 80
Mathematics Chinese Remainder Theorem 40
Mathematics Modular Square Root 35
Mathematics Legendre Symbol 35
Mathematics Quadratic Residues 25
Symmetric Ciphers Flipping Cookie 60
Symmetric Ciphers ECB Oracle 60
Symmetric Ciphers ECB CBC WTF 55
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
Symmetric Ciphers Structure of AES 15
Symmetric Ciphers Round Keys 20
Symmetric Ciphers Resisting Bruteforce 10
Symmetric Ciphers Keyed Permutations 5
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 XOR Starter 10
General Bytes and Big Integers 10
General Base64 10
Introduction Network Attacks 5
Introduction Great Snakes 3
General Hex 5
General ASCII 5
Introduction Finding Flags 2

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