Chosen-plaintext and known-plaintext attacks are two types of cryptanalytic attacks that target the vulnerabilities of encryption algorithms. Let's analyze the vulnerabilities of encryption algorithms to these attacks:
1. Known-Plaintext Attacks:
* In a known-plaintext attack, the attacker has access to pairs of plaintext and corresponding ciphertext. The goal is to deduce the encryption key or exploit weaknesses in the encryption algorithm.
* Vulnerability to known-plaintext attacks often arises from properties of the encryption algorithm that can be exploited mathematically or statistically.
* Encryption algorithms vulnerable to known-plaintext attacks typically exhibit patterns or biases in the relationship between plaintext and ciphertext. These patterns can be exploited to deduce information about the key.
* Weaknesses in key scheduling, key generation, or the substitution-permutation network (SPN) structure of the algorithm can lead to vulnerability against known-plaintext attacks.
* Known-plaintext attacks are particularly effective wh....
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