Data hiding is the art of hiding data for various purposes such as; to maintain private data, secure confidential data and so on. There are lots of techniques used for data hiding; Steganography and Watermarking; Steganography is an ancient well-known technology which has many applications even in today’s modern society. It is the art and science of hiding a secret message within a cover media in such way that only intended recipient have knowledge about secret message and the extraction of it at its destination. Cover media can be image, audio, video, text and network. It is concerned with sending a secret message while hiding its existence.
Setting file permissions is a form of DAC because it is the owner’s discretion. Configuring as many security layers as the user can will ensure the server will stay secure. Not all OS are 100% secure, but they can be configured to make it very hard for a hacker to
Asymmetric key Encryption is also called public key cryptography. In this, two different keys are used, one is for encryption called public key and decryption is performed by another key termed as a private key. It is not so easy to guess or interrupt both public key and private key as well as to gain access to the information. In the asymmetric key encryption, all the recipients have their public key and sender has its own private key, which is kept secret from everyone. Symmetric key encryption is also known as private key encryption.
All the three passwords are confidential to keep your account and money secured. When you are sending your username and password from your computer to bank server it should maintained confidentiality. No third party should be able to hack or share your information. There are few characteristics of confidentiality which are explained in detail as follows: i. Access Control Access control is a type of security technique which is used to identify an authorised user who can view or who will use resources for various data processing activities in a secured environment.
Hospitals should purchase self-encrypting hard drives. According to beckershospitalreview.com “Self-encrypting hard drives provide Source: iamwire.com stronger protection.” Encryption “uses a complex algorithm called a cipher in order to turn normalized data (plaintext) into a series of seemingly random characters (ciphertext) that is unreadable by those without a special key in which to decrypt it (makeuseof.com).” This is a very valuable asset to hospitals because if they ever got hit with a cyber attack the hackers wouldn’t be able to see what the data
The amendment also prevents worry of government trespassing without a warrant. However, the government could be trying to find a terrorist, for example, and be searching phones and/or emails. Furthermore, the Fourth Amendment guarantees people the right to privacy, makes American Citizens feel safe, and precludes worry about
This model is based on assigning security labels called security clearances to all object and users according to the specified classification. Thus, it enables a user read the objects which have the same label or smaller. For example, if considering the following classification of security levels: Unclassified – Confidential – Secret – Top Secret (each level dominates the previous), the user possessing a label “Secret” is not able to access the information labeled as “Top Secret” . The information flow from dominating level to lower level is regulated by the “Read down” and “Write up” principles. The integrity of information is also regulated by the two principles “Read up” and “Write down”
P8.4. a. Preventive controls such as authentication so anyone trying accessing the system has to provide credentials and verify their identity, encryption so sensitive information cannot be accessed, and have a strong internal environment that educates employees on security measures. Detective controls such as log analysis could be used to show determine if someone is trying to log on to a system and is unsuccessful. Corrective controls such as having an effective CIRT that can access the laptop and block or delete important information so the theft cannot access the laptop.
Moral Argument Edward Snowden was a contractor for N.S.A., he took steps to secure (steal) a User ID and Password from a co-worker. He used the stolen information to download highly confidential information and documents. The N.S.A. had spent some time collecting (Spying) on the American People and people from other Country’s who may have contact individuals in the United State. The N.S.A collected this information by tracking phone calls, text messages, emails and chats without the consent of the individuals involved.
In today’s world the technology which is made wireless communication easier is Bluetooth technology which is used for transferring data in short range. People who are looking to gain information in an unauthorized manner is viewed very closely to any new improvement or invention. Security of data is very important aspect in Bluetooth .Bluetooth security has many other different versions of bluetooth regarding security and speed of transferring the data which is to be according to the need and demand .Mainly this paper covers man in the middle attack security issues . While establishing encryption key between two Bluetooth devices, there is eavesdropping and MITM attack . Based on elliptic curves cryptography and interlock protocol a schema
Secret code is applied to the message and hashed and is sent to the receiver 6. Secret code is applied to the message and hashed and this hashed message is encrypted and sent to the receiver. It is used in digital signatures the hash is encrypted using sender’s private key and then encrypted using public key and sent to the receiver and the receiver decrypts the message using the private key. It is used in password storage A good system does not store the plaintext equivalent but store something else which include some randomness .so now if we use hash and because of its onewayness it is impossible to get back the password. If we use pure hash in the password and encrypt it, it can be broken easily by exhaustive search so that is why we have add some randomness to the password before the hash function is applied.
Which method does not involve password travel across the internet ? a) E commerce b) Manipulation system c) Challenge–response system d) Responce system Answer:c 8. In Assymmetric Encryption, a message encrypted with the Public Key only be decrypted with the receiver’s appropriate Private Key. Justify? a) Not true, the message can also be decrypted with the Public Key b) A so called “one way function with back door” is applied for the encryption c) The Public Key contains a special function which is used to encrypt the message and which can only be reversed by the appropriate Private Key d) The encrypted message contains the function for decryption which identifies the Private Key Answer:b 9.
Don’t use words that exist in foreign dictionaries as your passwords. It is risky. Online criminals and hackers could easily crack such passwords. However, you can use the first letter of each word in a long phrase to create strong passwords. You can also strengthen such passwords by making some letters uppercase and by swapping out some letters with numbers and symbols 7.
“The NSA is not listening to Americans ' phone calls or monitoring their emails” (Does the Government). As the government states they are permitted to collect any Americans communications The Fourth Amendment protects your privacy, for instance the police cannot search personal properties. Due to the definition of "the right of the people to be secure in their persons, houses, papers,” it makes people feel secure (Legal Information). In addition, it prevents all irrelevant searches that are not useful. On the other hand the Fourth Amendment makes it challenging for law enforcement to gather information.
Even if you do not work on a Government network, you should conduct some type of training or reading so you can safe guard your privacy. You can prevent Malware from affecting your computer and networks by identifying the characteristics of Malware. The easiest way for an individual user to introduce Malware to their network is by email. Ensure you know how to identify if your email contains Malware . Furthermore, when you receive an email do not open any attachments unless you know 100% who sent the email and that the attachment is safe.