Which of the following statements are true with respect to the blowfish algorithm?i) Provided key is large enough, brute-force key search is not practical, especially given the high key schedule costii) Key dependent S-boxes and sub keys make analysis very difficultiii) Changing both halves in each round increases securityiv) Blowfish has improved avalanche effects

Cryptography principles: These are the fundamental concepts and techniques used to protect data and secure communication.  Some principles include: Confidentiality Integrity Authentication Non-repudiation Key management Asymmetric cryptography: Also known as public-key cryptography, this is a key component of blockchain technology. It allows anyone to verify the integrity of transactions and protect funds from hackers. Hashing: This is a fundamental concept in cryptography that is used in various technologies, including blockchain, digital signatures, data integrity, and password... Show more

Cryptography principles: These are the fundamental concepts and techniques used to protect data and secure communication. 
Some principles include:
Confidentiality
Integrity
Authentication
Non-repudiation
Key management

Asymmetric cryptography: Also known as public-key cryptography, this is a key component of blockchain technology. It allows anyone to verify the integrity of transactions and protect funds from hackers.
Hashing: This is a fundamental concept in cryptography that is used in various technologies, including blockchain, digital signatures, data integrity, and password storage. In blockchain, hashing is used to ensure the security and integrity of data stored in the chain.
Public key cryptography: This form of cryptography allows users to communicate securely without having prior access to a shared secret key. This is done by using a pair of cryptographic keys designated as public key and private key.
Digital signatures: This is essential in cryptography as it helps in keeping documents secure. It helps in verifying the authenticity of a message or document and makes digital communications safer.
Authentication: This is an essential part of cryptography, and without it, many sensitive pieces of information would not be secure. It ensures the integrity of both the sender and the receiver.
Cipher: This is a series of steps that scrambles (encrypts) the original message, known as a plaintext, to a resultant message known as a ciphertext.
Cryptographic algorithm: This is a fundamental building block of cryptography. A cipher mode provides additional security features and determines how data is processed.
Key: This is a bit valued string that is used to convert the plaintext into cipher text and vice-versa. A key can be a word, number or phrase.

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