Cryptanalysis

Techopedia explains Cryptanalysis

Cryptanalysis attack types include:

• Known-Plaintext Analysis (KPA): Attacker decrypt ciphertexts with known partial plaintext.
• Chosen-Plaintext Analysis (CPA): Attacker uses ciphertext that matches arbitrarily selected plaintext via the same algorithm technique.
• Ciphertext-Only Analysis (COA): Attacker uses known ciphertext collections.
• Man-in-the-Middle (MITM) Attack: Attack occurs when two parties use message or key sharing for communication via a channel that appears secure but is actually compromised. Attacker employs this attack for the interception of messages that pass through the communications channel. Hash functions prevent MITM attacks.
• Adaptive Chosen-Plaintext Attack (ACPA): Similar to a CPA, this attack uses chosen plaintext and ciphertext based on data learned from past encryptions.