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Internet/Network Security/Questions Answered by Expert Amit
| Subject | Date Asked |
| IP Address | 5/28/2011 |
| Q: I have used my computer to host different things in the past, but I have been wondering how ... A: every computer (server) has an IP address, which is a "machine understandable" address for the ... | |
| Cryptograpjhy attacks | 3/10/2011 |
| Q: For the question of four attacks on company system my tutor didn't like birthday attack that I did I ... A: substitution attack is part of man-in-the-middle attack, which is again part of active attacks. The ... | |
| OUT OF DATE 2 | 2/24/2011 |
| Q: I was wondering would you please tell me: is it important for your computer to have java? Thanks ... A: Java is a programming language that can be used to make programs just as in C or C++. Unlike C or ... | |
| AVG virus software and Windows network problem. | 2/23/2011 |
| Q: On my RXP computer I was prompted to install the updated version of AVG antivirus which I did. It ... A: I don't use AVG, so cannot say for sure, but it is quite likely that AVG blocked access to the ... | |
| Cryptology | 2/21/2011 |
| Q: Im struggling to understand something related to cryptology. Describe four methods by which the ... A: DES key size is fixed, so an improved protocol would be: - Use of an algorithm that supports bigger ... | |
| OUT OF DATE | 2/14/2011 |
| Q: I was wondering would you please tell me: is it important for your computer to have java? Thanks A: It will depend on what you want to do with your computer. For normal web browsing you don't need ... | |
| Cryptography Implementation..? | 1/26/2011 |
| Q: Respected sir, My name is Alok. I have done Bsc in maths. And have done a 1 year dip in computers. I ... A: Cryptography implementation requires good knowledge of programming in any languages you mention. ... | |
| Balance between encryption strength and increase in length of paragraph | 1/23/2011 |
| Q: I am learning about encryption online, but would like to know if you would, how much the different ... A: The question is not complete without specifying key sizes. Similarly you have to specify what ... | |
| How can I make all the Internet traffic of my computer to go trough a particular proxy server? | 8/9/2010 |
| Q: How can I make all the Internet traffic of my computer to go trough a particular proxy server? I ... A: It depends on how much control you have over your gateway. If you have full control over the ... | |
| block Internet access for a single program. | 5/2/2010 |
| Q: Sir, I need to block internet access for a single program (Folder Lock 6). This program ... A: you have to use a firewall that filters at the application level. (see ... | |
| secure socket layer | 2/16/2010 |
| Q: Shortcomings of the technology The manner these weaknesses can be overcome A: SSL is now called TLS. As far as I know the protocol has no weaknesses. The problems with TLS always ... | |
| IT security systems relation to math | 2/5/2010 |
| Q: ...Please help me with where i should look to help me get started or give some idea of how math can ... A: (Theoretical) computer science can be considered as a branch of mathematics. Instead of giving you ... | |
| Hello sir | 2/2/2010 |
| Q: Pls how do i format my system. Each time i try, this error messages appear"close all disk utilities ... A: try to boot from the Windows installation CD and go to console. There you will have the option to ... | |
| Not knowing what's true of false | 2/2/2010 |
| Q: Do affiliates need to have a website for link cloaking software to work when they send prospects ... A: Sorry for the delay in responding. This is not my area of expertise, but from what I understand, if ... | |
| hardware and software | 1/10/2010 |
| Q: i wanted to know the changes in software and hardware. i know that hardware is stuff we can see, ... A: The general idea of hardware is what it was many years ago... 1) "if you can kick it its hardware, ... | |
| incorrect keystrokes | 12/21/2009 |
| Q: Frequently when I open a new tab on my browser my keystrokes come out as ababab for letters or ... A: Ok. the problem seems most likely to be one of the following - there is a malware in IE - the ... | |
| incorrect keystrokes | 12/21/2009 |
| Q: Frequently when I open a new tab on my browser my keystrokes come out as ababab for letters or ... A: can you provide more details of the problem? - which browser? - can you reproduce the problem? how? ... | |
| help | 9/1/2009 |
| Q: I'm not able to read the blog written in kannada, my OS is ubuntu and browser is mozilla. A: It looks like your OS needs the fonts for displaying Kannada. Are you able to view it in some other ... | |
| encryption algorithms | 7/30/2009 |
| Q: how many types of encryption algorithms and what it is ? A: your question is a bit vague. Encryption algorithms can be classified using several criteria. What ... | |
| Wifi Privacy | 7/29/2009 |
| Q: I have established a secured wifi connection with my neigbhour (he has the router). Is it possible ... A: Short answer is yes, it is possible for him to access your packets. There is nothing you can do to ... | |
| internet | 7/21/2009 |
| Q: i have a laptop and i got a good wireless connection but i can't connect to the internet: i mean ... A: Several causes: Did you configure the wireless adapter properly? Did you configure the router ... | |
| Internet slowdowns | 7/18/2009 |
| Q: My internet speed is rediculously slow. it will sometimes take several minutes for it to load ... A: It could also be a problem with network adapter (driver, configuration). Is it just the Internet ... | |
| browser history | 6/7/2009 |
| Q: Is there any way possible for a website to show up in my PC's browser history without someone using ... A: Its possible for someone to hack into your computer and modify the browser history. However, that ... | |
| IP addresses | 6/4/2009 |
| Q: I suspect my young daughter of nefarious internet activity involvement & I've decided to look into ... A: It depends on the type of mail service in question. If it is a web-based service, it is possible to ... | |
| Internet slowdowns | 5/29/2009 |
| Q: My internet speed is rediculously slow. it will sometimes take several minutes for it to load ... A: It seems to be a problem with your browser. Does it happen with all browsers? you should try another ... | |
| Internet explorer | 5/14/2009 |
| Q: When i type a site into google ( or any other search, it will not search it just comes up debug / ... A: I think the error is caused by a malware. I can suggest some possible actions (in order, if the ... | |
| Internet explorer | 5/13/2009 |
| Q: When i type a site into google ( or any other search, it will not search it just comes up debug / ... A: Please provide more information to understand the problem. Does google open in Firefox? What is the ... | |
| algorithm | 4/28/2009 |
| Q: Amit, I have heard some criticisms of PowerCrypt 2000 and its proprietary algorithm and use of MD5. ... A: I have not used this software but since you want my opinion, I would not use it for any serious ... | |
| Wireless Security | 4/25/2009 |
| Q: Is connecting to a wireless router with a patch cable more secure than a wireless connection A: yes it is more secure if you connect using a cable. If you do not disable the wifi interface, then ... | |
| Factoring Semiprimes | 3/16/2009 |
| Q: In RSA encryption, I understand that N is p*q where p and q are very large primes which should be of ... A: same *order of magnitude* is the key word. This does not mean they are close in value. Typically, ... | |
| outgoing mail server blocked at work | 3/11/2009 |
| Q: I am trying to configure Outlook for Mail.optonline.net through the SMTP server at work and the ... A: Depending on your work firewall policies, this may or may not be possible. You can try an ... | |
| Stolen wireless router! | 3/8/2009 |
| Q: I recently bought a wireless router online, and it was stolen off my porch upon delivery. I can ... A: Yes it is possible to trace the physical whereabouts of a wireless access point to a certain degree ... | |
| Gmail issues | 3/3/2009 |
| Q: Lately, whenever I try to log into my gmail I get the following message: Request-URI Too Large The ... A: I think this is an unsolved problem. It seems to happen with Firefox. Try one of the two: 1) Use IE ... | |
| Internet Sharing | 2/3/2009 |
| Q: I m pleased to see your profile and interest for working as a volunteer over this open forum side. ... A: If you use a newish wireless router, it should already have an option for WPA2. For a decent level ... | |
| Remote Viewing | 1/26/2009 |
| Q: I have an important question, I'm an admin on my office network, and there are 2 more admins. I ... A: Depending on the exact software the admin is using, you have to block tho ports on your computer ... | |
| Question marks on websites | 1/26/2009 |
| Q: Whenever I enter some sites, I can see only question marks. '???' Some egs include orkut/facebook ... A: It seems to be a problem with the language your browser tries to display. Assuming you are using ... | |
| question | 12/28/2008 |
| Q: i have an internet security question. there is a service provided by a cell phone service provider; ... A: The answer about security will depend on many factors like your ISP, your country and the protocols ... | |
| wireless connection | 12/14/2008 |
| Q: I had someone install a wireless router to my new computer. The wireless connection lasts for about ... A: Unfortunately, this is not enough information to answer your question. There can be several reasons ... | |
| Blue Screen on Internet connection | 12/1/2008 |
| Q: The problem occurs only when connected to the internet (Broadband). Here it goes..... While surfing ... A: That error message does not give much information (unless a guy at Microsoft sees the dump message. ... | |
| Childproof software | 12/1/2008 |
| Q: I can't find where else I can ask this question on this site.I have a program installed on my son's ... A: If you don't have a lot of data, the easiest way to install is to format the hard drive and use the ... | |
| suspicious internet downloads | 11/28/2008 |
| Q: Recently I found a bunch of porno images downloaded onto our family computer. They were not pop ups ... A: Although, this question does not fall within my area of expertise, I will try to answer it as it is ... | |
| spam | 11/25/2008 |
| Q: Amit Lately I have been getting a lot of spam that has my own email address as the sender?! How can ... A: It is not possible to stop the spammer from *sending* the mails. What you can do is stop the mail ... | |
| security | 11/15/2008 |
| Q: Amit I've accessed my online banking in an internet cafe How likely is it that somebody else may ... A: If you used your own laptop then there is a very low chance (as good as accessing from home). If you ... | |
| online identity | 10/31/2008 |
| Q: I know that my computer somehow has an identity when I get online. Is there a way a website I ... A: Yes its true that your computer has an identity (your ip address). Even if you change your ip ... | |
| ethical hackimg | 10/4/2008 |
| Q: iam planning to do acourse in ethical hacking from appin there site is www.appinonline.com......is ... A: From the website, the courses look ok. I've not seen or tried one. Getting a job based on these ... | |
Internet/Network Security
Answers by Expert:
Amit
Top Expert on this page
Expertise
I can answer all kinds of questions relating to cryptology, both theoretical and practical. I also answer related questions in computer science and mathematics. I will probably NOT ANSWER questions pertaining to intrusion detection, hacking, viruses, spyware, trojans, firewalls, etc, unless they involve some sort of cryptography.
Experience
Researcher in information security.
Education/Credentials
PhD in cryptography.
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