cryptomedium

Алиса не знает алгебру (Alice doesn't know algebra)

hackerlab

Task: RSA service encrypts a secret key with two different prime exponents under the same modulus N, providing both ciphertexts. Solution: Classic RSA Common Modulus Attack using Extended Euclidean Algorithm to find Bézout coefficients and recover plaintext from two ciphertexts.

$ ls tags/ techniques/
extended_euclidean_algorithmrsa_common_modulus_attackmodular_inverse_for_negative_exponents

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