asd

2nd place

8276 points


Solves

Challenge Category Value Time
CBC-MAC Symmetric cipher - Block cipher 500
factor attack 3 RSA - Modulu 464
discrete logarithm Chinese Remainder 500
prepend oracle Symmetric cipher - Block cipher 500
cut paste Symmetric cipher - Block cipher 285
know high bits RSA - Modulu 499
common modulus RSA - Modulu 244
factor attack 2 RSA - Modulu 265
boneh durfee attack RSA - Private exponent 500
wiener attack RSA - Private exponent 223
short padding RSA - Public exponent 500
related message RSA - Public exponent 500
broadcast with linear RSA - Public exponent 500
broadcast RSA - Public exponent 499
low public exponent RSA - Public exponent 244
LCG Symmetric cipher - Keystream 100
bit-flipping Symmetric cipher - Block cipher 152
RC4 Symmetric cipher - Stream cipher 100
factor attack RSA - Modulu 200
easy baby RSA RSA - Starter 100
Affine cipher Classical cipher 489
Simple substitution Classical cipher 447
Caesar Classical cipher 265
Pwntools Python 200