What is the traffic padding?

Definition(s): The generation of spurious instances of communication, spurious data units, and/or spurious data within data units. Note: May be used to disguise the amount of real data units being sent.

Which of the following is pervasive security mechanism?

– Pervasive security mechanisms, not specific to particular services. Eight types: – encipherment, – digital signature, – access control mechanisms, – data integrity mechanisms, – authentication exchanges, – traffic padding, – routing control, – notarization.

What is crypto analysis?

Cryptanalysis is the process of studying cryptographic systems to look for weaknesses or leaks of information.

What is Stego data?

Steganography is the technique of hiding secret data within an ordinary, non-secret, file or message in order to avoid detection; the secret data is then extracted at its destination. The word steganography is derived from the Greek words steganos (meaning hidden or covered) and the Greek root graph (meaning to write).

What is notarization in network security?

Notarization : This security mechanism involves use of trusted third party in communication. It acts as mediator between sender and receiver so that if any chance of conflict is reduced.

What is encryption and decryption?

Encryption is the process of translating plain text data (plaintext) into something that appears to be random and meaningless (ciphertext). Decryption is the process of converting ciphertext back to plaintext. To decrypt a particular piece of ciphertext, the key that was used to encrypt the data must be used.

What are the four 4 types of cryptanalytic attacks?

Cryptanalysis and Types of Attacks

• Known-Plaintext Analysis (KPA) : In this type of attack, some plaintext-ciphertext pairs are already known.
• Chosen-Plaintext Analysis (CPA) :
• Ciphertext-Only Analysis (COA) :
• Man-In-The-Middle (MITM) attack :
• Adaptive Chosen-Plaintext Analysis (ACPA) :

What is obfuscation and steganography?

Steganography is a form of obfuscation that is quite different from cryptography, which is the practice of writing coded or encrypted messages. Cryptographic messages are obviously hiding something: they typically look like gibberish and require specialist methods to decode.

What is steganography and cryptography?

Cryptography or secret writing, is a method where a secret method is converted in cipher text and sent to other person who then decrypt the cipher text into plain text. Steganography refers to Cover Writing. Cryptography refers to Secret Writing.

What are the five categories of security services?

Applying Cryptographic Security Services – a NIST summary

• The publication describes the following basic security services as confidentiality, integrity, authentication, source authentication, authorization and non-repudiation.
• A range of cryptographic and non-cryptographic tools may be used to support these services.

What is decrypt tool?

Ransomware is a malware that locks your computer or encrypts your files and demands a ransom (money) in exchange. Quick Heal has developed a tool that can help decrypt files encrypted by the following types of ransomware. The tool is free and can be used without any hassle.

What is traffic padding in network security?

Traffic padding may be used to hide the traffic pattern, which means to insert dummy traffic into the network and present to the intruder a different traffic pattern. The apparent traffic pattern, which is observed by intruder, is referred to as a cover mode that hides the real operation mode of the system.

What is tratraffic padding?

Traffic padding generates the cipher text output constantly, even in absence of the plaintext. A random continuous data stream is produced. When the plaintext is available, it is encrypted and then transmitted.

How to protect against spurious traffic and padding?

Generating spurious traffic and padding protocol data units to a constant length can provide limited protection against traffic analysis. the level of spurious traffic must approximate to the highest anticipated level of real traffic.