小定

9th place

3805 points


Solves

Challenge Category Value Time
nonce reuse Diffie-Hellman 499
man in the middle Diffie-Hellman 464
LSB oracle RSA - Chosen ciphertext 464
wiener attack RSA - Private exponent 223
low public exponent RSA - Public exponent 244
common modulus RSA - Modulu 244
factor attack 2 RSA - Modulu 265
factor attack RSA - Modulu 200
cut paste Symmetric cipher - Block cipher 285
easy baby RSA RSA - Starter 100
Caesar Classical cipher 265
bit-flipping Symmetric cipher - Block cipher 152
LCG Symmetric cipher - Keystream 100
Pwntools Python 200
RC4 Symmetric cipher - Stream cipher 100