What type of attack is a bit flipping attack?

cryptographic cipher
A bit-flipping attack is an attack on a cryptographic cipher in which the attacker can change the ciphertext in such a way as to result in a predictable change of the plaintext, although the attacker is not able to learn the plaintext itself.

What is CBC bit flipping?

What is Bit Flipping Attack? Bit Flipping Attack requires the mode of encryption used for encryption to be CBC(Cipher Block Chaining) about which is described in the previous blogs.

What is bit flip?

In computing, bit flipping may refer to: Bitwise operation NOT, performing logical negation to a single bit, or each of several bits, switching state 0 to 1, and vice versa. Memory error or soft error, an unintentional state switch from 0 to 1, or vice versa, of a bit stored to random access memory or other medium.

Which encrypted virus does not need a decryptor?

2736 Virus. In fact, this is an even simpler implementation of the simple XOR method. Detection of such viruses is still possible without trying to decrypt the actual virus body. In most cases, the code pattern of the decryptor of these viruses is unique enough for detection.

Is CBC secure?

This is because the initialization vector adds a random factor to each block; hence, why the same blocks in different positions will have different ciphers. Although CBC mode is more secure, its encryption is not tolerant of block losses. This is because blocks depend on their previous blocks for encryption.

What happens if a bit flips?

A bit flip occurs when you’re copying data and one of the bits changes so that it’s incorrect. A value of 1 incorrectly becomes a zero, or vice versa. Bit flips that lead to bug checks are a common way that Windows detects a hardware problem (e.g., bad memory, an overheating CPU).

How often do bit flips happen?

This converts into an average of one single-bit-error every 14 to 40 hours per Gigabit of DRAM. The field study also explains that the error-rate increases by the age of the memory. Brand new DRAMs might not show any errors for weeks and months, but then the error-rate suddenly goes up.

Why is RC4 vulnerable to a bit flipping attack?

Because RC4 is a stream cipher, it is more malleable than common block ciphers. If not used together with a strong message authentication code (MAC), then encryption is vulnerable to a bit-flipping attack. The cipher is also vulnerable to a stream cipher attack if not implemented correctly.

Which is a weakness of the RC4 stream cipher?

RC4 stream ciphers are strong in coding and easy to implement. RC4 stream ciphers do not require more memory. RC4 stream ciphers are implemented on large streams of data. If RC4 is not used with strong MAC then encryption is vulnerable to a bit-flipping attack. RC4 stream ciphers do not provide authentication.

Is the Fluhrer Mantin and Shamir attack applicable to RC4?

The Fluhrer, Mantin and Shamir attack does not apply to RC4-based SSL, since SSL generates the encryption keys it uses for RC4 by hashing, meaning that different SSL sessions have unrelated keys.

Who is the inventor of the RC4 cipher?

RC4 means Rivest Cipher 4 invented by Ron Rivest in 1987 for RSA Security. It is a Stream Ciphers. Stream Ciphers operate on a stream of data byte by byte. RC4 stream cipher is one of the most widely used stream ciphers because of its simplicity and speed of operation.