Computer Security

Recent paper presentation topics on information security include: NSA collecting millions of faces on the web and Understanding Information Security. Presentations on encryption is also a big topic.

Go to the "Start Menu";

Click on "Control Panel";

Find the "Add Or Remove Programs" icon;

Find and select"Acpro";

Clicking on "Remove".

if it doesn't work,I'd like to recommend you the Best Uninstall Tool ! It helps you to uninstall your imesh and related files completely.

Kerberos is an example of a private key encryption service.

The TCP 3 way handshake is when the server states what ports it has open, the client requests access to the port, and the server grants access.

Layman's terms:

Server - I have beer at my place.

Client - Can I come over?

Server - Sure!

Maybe you need to buy the full version or renew it.

Great question - one of the things about hashing is that it is very difficult or impossible to reverse the hashing process, even if you know the algorithm. This is because just doing the steps backwards will not result in the original value.

As the password is hidden, it can be hard to check if the password is correct. Many passwords are case sensitive, which means that the case (lower or upper) has to be correct. Therefore, if the password is 'RABBiT', then typing in 'rabbit' or 'RaBBIT' will not work. Another common problem is that if Caps Lock is on and you type 'RABBiT', it will come up as 'rabbIt'. There is usually a light that is either on (if Caps Lock is on), or off (if Caps Lock is off).

Usually, no. The passwords are encrypted and stored, so even if the admin tried something fish, chances are, they wont be able to make sense out of what is stored there.

There are various types of protections are available to protect cell phones from attackers. Some of the common ones include avoiding public WIFI, disabling auto-complete, using pass codes and so much more.

To find a topic good for you, see the Studant Project Help link below. The site has lots of projects to choose from.

A very intelligent question...

Actually it is possible if you have an backdoor access to the switch or router of your ISP. If you know what I mean.

But in general terms, it is NO!

This one is easy, the answer is the user is disconnected from Windows Explorer and a partition of the hard-drive.

Windows Explorer is everything that allows you to navigate a windows operating system: documents, taskbar, desktop... ect, so when the user 'logs off' the computer, windows explorer process is shutdown.

The user is also disconnected from the hard drive but the system is not, this is because if there are multiple accounts on the computer, then other accounts can access their personal space on the hard drive.

Aslong as the computer is switched on, even at logon screen power is still being consumed to run the computer's operating system and files which are ready for the user to log back on.

it depends on which programming language you are using.

the basic idea is to check when a key is hit on the keyboard for eg in C u can use kbhit() function. It returns a non-zero integer if a key is in the keyboard buffer. It will not wait for a key to be pressed.

however in VB, C# you can use keypressdown event to check which key is pressed.

Once you know which key is pressed you need to record the finding some where for eg in a file.

Also you need to do is to run your program as startup so that it is started as soon as the system boots up.

Your supervisor can request you password for company computer systems or email..etc. He/She cannot legally make you give up your personal passwords.

During a job interview, the interviewer may want to establish your character qualifications for the position. You may be asked for a password to review your facebook or other social network personality. You can not be forced to give your password, but it may impact your ability to get hired.

In the famous paper "New Directions in Cryptography", Whitfield Diffie and Martin Hellman first described the notion of a digital signature scheme, although they only conjectured that such schemes existed.[5][6] Soon afterwards, Ronald Rivest, Adi Shamir, and Len Adleman invented the RSA algorithm that could be used for primitive digital signatures[7]. (Note that this just serves as a proof-of-concept, and "plain" RSA signatures are not secure.) The first widely marketed software package to offer digital signature was Lotus Notes 1.0, released in 1989, which used the RSA algorithm. Basic RSA signatures are computed as follows. To generate RSA signature keys, one simply generates an RSA key pair containing a modulus N that is the product of two large primes, along with integers e and d such that e d = 1 mod φ(N), where φ is the Euler phi-function. The signer's public key consists of N and e, and the signer's secret key contains d. To sign a message m, the signer computes σ=md mod N. To verify, the receiver checks that σe = m mod N. As noted earlier, this basic scheme is not very secure. To prevent attacks, one can first apply a cryptographic hash function to the message m and then apply the RSA algorithm described above to the result. This approach can be proven secure in the so-called random oracle model. Other digital signature schemes were soon developed after RSA, the earliest being Lamport signatures[8], Merkle signatures (also known as "Merkle trees" or simply "Hash trees")[9], and Rabin signatures[10]. In 1984, Shafi Goldwasser, Silvio Micali, and Ronald Rivest became the first to rigorously define the security requirements of digital signature schemes[11]. They described a hierarchy of attack models: # In a key-onlyattack, the attacker is only given the public verification key. # In a known message attack, the attacker is given valid signatures for a variety of messages known by the attacker but not chosen by the attacker. # In a chosen message attack, the attacker first learns signatures on arbitrary messages of the attacker's choice. They also describe a hierarchy of attack results: # A total break results in the recovery of the signing key. # A universal forgery attack results in the ability to forge signatures for any message. # A selective forgery attack results in a signature on a message of the adversary's choice. # An existential forgery merely results in some valid message/signature pair not already known to the adversary. They also present the GMR signature scheme, the first that can be proven to prevent even an existential forgery against a chosen message attack.[11] Most early signature schemes were of a similar type: they involve the use of a trapdoor permutation, such as the RSA function, or in the case of the Rabin signature scheme, computing square modulo composite n. A trapdoor permutation family is a family of permutations, specified by a parameter, that is easy to compute in the forward direction, but is difficult to compute in the reverse direction. However, for every parameter there is a "trapdoor" that enables easy computation of the reverse direction. Trapdoor permutations can be viewed as public-key encryption systems, where the parameter is the public key and the trapdoor is the secret key, and where encrypting corresponds to computing the forward direction of the permutation, while decrypting corresponds to the reverse direction. Trapdoor permutations can also be viewed as digital signature schemes, where computing the reverse direction with the secret key is thought of as signing, and computing the forward direction is done to verify signatures. Because of this correspondence, digital signatures are often described as based on public-key cryptosystems, where signing is equivalent to decryption and verification is equivalent to encryption, but this is not the only way digital signatures are computed. Used directly, this type of signature scheme is vulnerable to a key-only existential forgery attack. To create a forgery, the attacker picks a random signature σ and uses the verification procedure to determine the message mcorresponding to that signature.[12] In practice, however, this type of signature is not used directly, but rather, the message to be signed is first hashed to produce a short digest that is then signed. This forgery attack, then, only produces the hash function output that corresponds to σ, but not a message that leads to that value, which does not lead to an attack. In the random oracle model, this hash-and-decrypt form of signature is existentially unforgeable, even against a chosen-message attack.[6] There are several reasons to sign such a hash (or message digest) instead of the whole document. * For efficiency: The signature will be much shorter and thus save time since hashing is generally much faster than signing in practice. * For compatibility:Messages are typically bit strings, but some signature schemes operate on other domains (such as, in the case of RSA, numbers modulo a composite number N). A hash function can be used to convert an arbitrary input into the proper format. * For integrity: Without the hash function, the text "to be signed" may have to be split (separated) in blocks small enough for the signature scheme to act on them directly. However, the receiver of the signed blocks is not able to recognize if all the blocks are present and in the appropriate order.

You can't You have to log on as an admin first. Even if you do you probably get screwed real bad

Digital imaging is allows for block to block copying of a suspect storage device. Imaging differs from drag & drop copying, in that it makes an identical copy of the drive (to include slack space) instead of just copying the files themselves. A write blocker may be required in some cases to prevent unintentional writing by the OS.

Once the original has been imaged at least twice, either an MD5 or SHA1 hash (digital fingerprint) is made to compare it against the images. If they match, then it is trivial for a forensic analyst to prove to the client that the evidence has been unaltered, and anything acquired is identical to what the suspect had on his original drive.

Answer: Try to disable "eset nod32" temporarily; then download a popular Internet Secutiy utility on a 30-day free trial basis. It is a state-of-the art computer security suite that will probably resolve your problem. Simply Copy http://www.avira.com/en/downloads/avira_antivir_premium.html and Paste it into your browser. You must ensure that eset nod32 is either disabled or uninstalled; otherwise, the doenloaded utility will not function.

E-Safety in internet safety - it's about utilizing information and communication technologies in a safe and responsible way.

It can refer electronic safety for children, and it can be associated with websites such as Facebook, Bebo, Twitter, MSN and any other social network. Make sure you know who your child is talking to online, not just on computers, but also laptops and mobile phones.

It can also refer to protecting personal information, such as credit card numbers, phone, address, social security number, and any other information that can be used to compromise your credit or identity.

Firewall appliances are stand-alone, self contained combinations of computing hardware and software. A commercial grade firewall system consists of application software that is configured for the firewall application and run on a general-purpose computer.

Symmetric ciphers use only one key. By contrast, an asymmetric cipher will use two keys. One key is kept "private" by the the owner while the other is "published" or otherwise released to the public (hence known as the "public key"). Data encrypted by one key can only be decrypted using the other key.

depends where you get it from but in general, the open-source code modifier is safe

Try GFI LanGuard. Works great and a cinch to setup.