cryptomedium

Boolean Predictor

duckerz

Task: RSA parity oracle that reveals if decrypted message is even/odd. Solution: LSB oracle attack using multiplicative property of RSA to perform binary search and recover the plaintext in log2(n) queries.

$ ls tags/ techniques/
lsbrsaoracleparity
rsa_lsb_oracle_attackbinary_searchmultiplicative_property
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