Cryptographic Attack | Plan Text And Cipher Text Based Attack | TECH WORTHY MIND

There are how many cryptographic attack methods that include Plan text-based as well as cipher text-based attack

Describing Cryptographic t

Cryptographic Attacks can be referred to as techniques of performing cryptanalysis. These attacks are based on what access the cryptanalyst has over the plaintext, ciphertext, and other aspects of the Cryptographic attack. Some popular cryptographic attacks are as follows:

Cipher-only attack

Refer to an attack in which the cryptanalyst has a piece of ciphertext (encrypted text) and has no knowledge of plaintext (unencrypted text). This attack is very difficult to perform as it involves the most difficult type of cryptanalysis and required accurate guesswork of how the data would have been encrypted.

Chosen-ciphertext attack

Refer to an attack in which the cryptanalyst selects some ciphertext and tries to find the matching plaintext. With this information, the cryptanalyst tries to find the key used for decryption.

Known-plaintext attack

Represent an attack in which the cryptanalyst knows a portion of the plaintext generated from the ciphertext. The cryptanalyst uses this information to extract the key used for encryption and recover the encrypted text.

Chosen-plaintext attack

Refer to an attack in which the cryptanalyst can produce ciphertext from some randomly selected plaintext; however, the cryptanalyst is not able to break the key that is used to produce the ciphertext. The cryptanalyst tries to break the key by comparing the entire ciphertext with the original plaintext.

Man-in-the-middle attack

Refer to an attack in which the attacker (cryptanalyst) placed a piece of surveillance software at the communication channel between the two users who want to exchange keys for secure communication. Then the attacker exchange keys with each other, not with the attacker. In this way, the users unknowingly send keys to the attacker.

Replay attack

Refer to an attack in which the attacker tries to fraudulently repeat or delay a valid data transmission. For example, user A sends his/her password to another user B as proof of his/her identity and a third user C somehow captures the password sent by user A. Now, when user A and B have ended communication, user C connects to user B and sends the password of user A as proof of identity, and communicates with him/her as being user A.