"Cryptanalysis refers to the process of analyzing information systems in order to understand hidden aspects of the systems."
The study of techniques used to break encrypted data and communications.
Cryptography: The science of encoding and decoding secret messages.
Cryptology: The study of cryptography and related topics.
Classical ciphers: Ciphers that were used before the advent of computers, such as the Caesar Cipher and the Vigenere Cipher.
Modern ciphers: Ciphers that are used in modern cryptography, such as AES, RSA, and DES.
Attacks on ciphers: Techniques used to break ciphers, such as brute force attacks and statistical attacks.
Cryptographic hash functions: One-way functions that are used to secure data transmission, such as SHA and MD5.
Cryptanalysis: The study of cryptographic systems with the aim of breaking them.
Cryptographic systems: Systems that use cryptography for securing messages or data, such as SSL/TLS and PGP.
Key management: The management of encryption keys, including key distribution and storage.
Public key infrastructure: The infrastructure used to manage digital certificates, including certificate authorities and certificate revocation lists.
Steganography: The practice of hiding messages within other messages or images, with the aim of preventing their detection.
Quantum cryptography: A newer type of cryptography that uses quantum mechanics to secure data transmission.
Side-channel attacks: Attacks that exploit weaknesses in the physical implementation of a cryptographic system, such as power consumption or electromagnetic radiation.
Cryptanalysis tools: Software tools used to analyze cryptographic systems, such as Wireshark and Cain & Abel.
Classical Cryptanalysis: It is the oldest type of cryptanalysis that involves breaking ciphers that were used in ancient times, such as the Caesar cipher or the Vigenère cipher. The goal is to find patterns in the encrypted message to decipher it.
Frequency Analysis: Frequency analysis is a technique used to decipher ciphertext by analyzing the frequency of letters or groups of letters that appear in the message. It works by identifying patterns in the frequency of occurrence of letters in a message.
Brute Force Attack: A brute force attack is an attack in which an attacker tries every possible combination of characters to break a cipher. It is sometimes successful if the key is short, but for longer keys, it is time-consuming and resource-intensive.
Dictionary Attack: A dictionary attack is a type of attack that uses a pre-defined list of common passwords or phrases to break into a system. It is successful if the password is weak and easy to guess.
Rainbow Table Attack: A rainbow table attack is a type of attack that is used to crack passwords that are stored using a one-way hashing algorithm. It involves precomputing a massive table of all possible passwords, and then matching the hash values of the passwords with the ones in the table.
Differential Cryptanalysis: Differential cryptanalysis is a method of analyzing cryptographic algorithms based on analyzing pairs of plaintexts and their corresponding ciphertexts. It is used to find patterns in the encryption algorithm and exploit them to break the cipher.
Linear Cryptanalysis: Linear cryptanalysis is a method of analyzing cryptographic algorithms that can be modeled as linear equations. It involves analyzing the linear relationship between the plaintext and ciphertext and applying statistical techniques to break the cipher.
Side-Channel Attack: Side-channel attacks are a class of attacks that exploit weaknesses in the physical implementation of a cryptographic system, such as the voltage or electromagnetic emissions, to extract information about the keys.
Meet-in-the-Middle Attack: Meet-in-the-middle attack is an attack in which an attacker tries to find a key by using two encryption techniques, one from the plaintext to the key and the other from the ciphertext to the key.
Fault Injection Attack: A fault injection attack is a type of attack that involves intentionally introducing faults in a cryptographic system to compromise its security. It can be done by manipulating the voltage or clock signals during cryptographic operations.
Chosen Plaintext Attack: A chosen plaintext attack is an attack in which an attacker can choose what plaintext to encrypt and get access to the corresponding ciphertext. It can be used to derive the secret key used in the encryption process.
Chosen Ciphertext Attack: A chosen ciphertext attack is an attack in which an attacker can choose what ciphertext to decrypt and get access to the corresponding plaintext. It can be used to derive the secret key used in the encryption process.
Timing Attack: A timing attack is a type of side-channel attack that involves measuring the time it takes to execute cryptographic operations to extract information about the keys. It can be done by exploiting the differences in the time it takes to execute different instructions.
"Cryptanalysis is used to breach cryptographic security systems and gain access to the contents of encrypted messages, even if the cryptographic key is unknown."
"Cryptanalysis (from the Greek kryptós, 'hidden', and analýein, 'to analyze')"
"Cryptanalysis includes the study of side-channel attacks that do not target weaknesses in the cryptographic algorithms themselves, but instead exploit weaknesses in their implementation."
"The methods and techniques of cryptanalysis have changed drastically through the history of cryptography, adapting to increasing cryptographic complexity."
"ranging from the pen-and-paper methods of the past"
"machines like the British Bombes and Colossus computers at Bletchley Park in World War II"
"Methods for breaking modern cryptosystems often involve solving carefully constructed problems in pure mathematics."
"the goal has been the same"
"to understand hidden aspects of the systems."
"gain access to the contents of encrypted messages"
"In addition to mathematical analysis of cryptographic algorithms, cryptanalysis includes the study of side-channel attacks"
"exploit weaknesses in their implementation."
"through the history of cryptography"
"the mathematically advanced computerized schemes of the present."
"Cryptanalysis (from the Greek kryptós, 'hidden', and analýein, 'to analyze')"
"adapting to increasing cryptographic complexity"
"machines like the British Bombes and Colossus computers at Bletchley Park in World War II"
"problems in pure mathematics"
"integer factorization."