All Questions

7
votes
2answers
675 views

Filling the disk with random data prior to encryption?

Filling the disk with random data prior to encrypting it will supposedly make it harder for the attacker to perform any cryptanalysis. Most sources seem to state this is because it will be harder for ...
11
votes
1answer
468 views

Slot machine segfault: what can we determine?

We walked into a casino and saw this near the entrance. I don't have a specific question, but is there anything that would be interesting to share and explain from the image?
3
votes
2answers
209 views

Blocking executables at the firewall in the enterprise

The infrastructure team in our medium enterprise has requested blocking of all executables at the firewall. We have a firewall which is capable of DLP, so therefore this can be set up fairly easily. ...
2
votes
1answer
144 views

Does OAuth 2.0 provide a way to reliably regenerate a key only when a session is active?

I want to encrypt sensitive data on my app server (facebook app) in such a way that my app may only decrypt this data when the user is in an active session. I need to be able to reliably ...
4
votes
2answers
2k views

Is an AIA or CRL useful / required at the Root CA if that Root is used to cross certify another PKI?

Suppose I have several independent PKIs that are used Two internal PKIs: One with SHA1 support the other with Suite B algorithms. A partner who I trust and have a policy map with. Since both my ...
6
votes
3answers
368 views

What sort of delay will deter a robot from crawling my site?

I use what I believe is the standard method of identifying bad bots that do not respect my robots.txt (i.e. disallowing crawling the bad-bots subdirectory, then logging those who still go there). So ...
-3
votes
1answer
151 views

What are the main reasons to leave an IT Security position? [closed]

There are many questions here on how to enter the field of IT Security. What are some reasons why people have left or are trying to get out of an IT Security position? This may be useful to know in ...
1
vote
2answers
838 views

About generating Exe files from Metasploit scripts

I'm a newbie to Metasploit framework. I want to create a standalone application (an exe file) exploiting MS08-067 vulnerability. Is that possible for me to have the application generated from ...
2
votes
2answers
448 views

How can I trace Hacking attempt

First of all I dont want to track the hacker. I want to track if the system is being compromised some way. For example when a website is under attack it'll receive malicious data. I want to check ...
1
vote
2answers
363 views

Can I use hardware token OTP to stop piracy?

Our firm sells an offline desktop (.exe) software, we are thinking of using OTP (from hardware token like in internet banking) to stop people from copying the software without permission. Basically, ...
0
votes
1answer
270 views

Is it possible detect a device using a 3G connection?

Someone has a hidden smartphone and are using the internet in a 3G connection. Can I find where is he? Maybe using a signal detector. find who is he? Maybe know the MAC number. just find if ...
5
votes
1answer
126 views

Symbiote Counter-Attack Detection

I saw this video on YouTube about hacking Cisco phones (and other embedded systems) and I was overjoyed when the presenter not only hacked, but presented a security solution. Intrigued, I started ...
2
votes
1answer
2k views

IE on Windows 2012 doesn't show certificate or lock icon despite using HTTPS

Can anyone explain why IE on Windows 2012 doesn't show the lock icon despite using HTTPS when visiting the following site? https://www.microsoft.com/en-us/default.aspx I am able to see the lock ...
6
votes
2answers
235 views

Example of malware in the wild?

I'd like to test an application that detects malware on my network. In order to do that, I have a Windows VM set up that I'd like to infect with malware. But for the life of me, I can't seem to find ...
7
votes
3answers
542 views

Risk Control - Ignored risks and accepted risks

Some say that ignored risks as part of an organization's behavior are much worse than accepted risks. I would like to test that axiom (in the eyes of some). When I am handling a risk and I choose to ...
9
votes
1answer
1k views

GPG-encrypted mailing list and other approaches to safe communication

What is the best way to communicate privately on a mailing-list? Requiring each member of the list to have the public key of each other member, and encrypt their messages with those, is cumbersome to ...
0
votes
2answers
1k views

Tool for generating MD4 collisions

There are a lot of research papers available online that discuss vulnerabilities of MD4 algorithm, but I couldn't find any implementation of these. Uptill now I have used tools like John the Ripper ...
4
votes
1answer
1k views

What tools can be use for Security Auditing for Redhat

Are there any good tools that can be used for Security auditing of Redhat Linux. That can audit all the critical areas of System and provide the detailed output of all the audited sections.
-1
votes
1answer
369 views

Why is it hard to catch cybercriminals? [duplicate]

Possible Duplicate: Why is it difficult to catch “Anonymous” or “Lulzsec” (groups)? I really want to know why the attackers behind the major attacks like Diginotar hack ...
2
votes
2answers
852 views

How to test security of an encryption algorithm?

What are the standards methods to test the quality of an encryption algorithms. Secondly if i am trying to implement an encryption algorithm then what practices should i adopt?
2
votes
1answer
648 views

Can Microsoft monitor my computer because of Windows 8 email sign in

Because Windows 8 uses an email sign in/cloud profile, do they have access to view my data and what I am doing with it? I am always wary that one of the EULAs is signing away the rights to my soul (or ...
5
votes
2answers
2k views

how strong is AES without salt

The AES cryto library provided to us from company, does not generate a different encrypted value for plain text. If text is "abcd" , it will generate the same encrypted value over multiple ...
1
vote
1answer
419 views

Storing Private Keys Generated on Server with specific User's Password Securely

I am currently building a system (PHP Web Application Framework) that creates an RSA Key Pair for a user to allow other users to send secure information from one to another. The public key is ...
2
votes
3answers
212 views

PGP on hibernation files?

I was afraid reading this: This $299 tool is reportedly capable of decrypting BitLocker, PGP, and TrueCrypt disks in real-time. It seems to me that PGP and other sensible tools have to lock memory to ...
2
votes
1answer
461 views

What happens to a certificate's Basic Constraints when a policy map is used?

One feature of a Basic Constraint when applied to a certificate (CA or end certificate) is that I can specify the maximum number of CAs that are permitted in the chain. I'm planning on having a 2 ...
0
votes
1answer
1k views

In SSL/TLS, how is the authenticity of a server's certificate verified?

Quote from an article on computerworld.com: "The private key is used to sign the server's TLS public key, which is currently used by browsers to validate SSL certificates." My understanding ...
3
votes
1answer
1k views

What OID Issuance Policies are appropriate for SmartCard and Browser Certificates?

I'm investigating issuance policies for SMIME and Browser certificates with different levels of assurance. For the purposes of S/MIME and Browser certificates, should I even use an assurance policy? ...
2
votes
0answers
137 views

Determine deployed 802.3x encryption/authentication protocols? Or, why can't I access Eth0?

Is there any means to identify deployed 802.3x authentication protocols on a wired interface (eth0) under Windows 7 (CLI), or from wlan0 on a *NIX based system? The scenario is as follows: I am a ...
2
votes
5answers
1k views

Apple ID Created With My Email Address

A little similar to this question. but rather than hack my email address someone has created an Apple ID with a gmail address that is similar to mine, but had dots '.' in it. For example if I have ...
1
vote
2answers
315 views

S/MIME verification

I am getting emails with smime.p7s attachments. when I look at my mail on my Linux box, I can see base64 encoded block in mail body. I can extract that block and open it on Windows using certmgr and ...
5
votes
1answer
228 views

How to solve race condition in 2-factor authentication solutions like RSA Security tokens or Google Authenticator?

One of the reasons we opt to use 2-factor authentication is to minimize the impact of keyloggers. The theory is that even if an attacker is able to observe the user type in the token numbers, they ...
24
votes
3answers
970 views

A Different Approach to PKI

After yet another failure of the public key infrastructure, I was thinking about how broken the whole thing is. This business of undeniably associating an identity with a public key, and all the work ...
3
votes
2answers
996 views

Failed RDP brute force attack from Microsoft IP address?

I use RDPGuard on my webserver. I have noticed that it blocked an IP address which seemed to originate from a Microsoft registered IP address: Process Information: Caller Process ID: 0xf78 Caller ...
4
votes
2answers
543 views

Does Authenticode still work offline and with a “fake” certificate

Here's our story: We're developing some software (written in C#/.NET) and we're already signing the assemblies with strong names, I do this in Visual Studio with a pfx file that is protected by a ...
1
vote
3answers
500 views

Web Application - Cookie Expiry

We are using a web application on cloud. I need a small clarification. We are using Perl with Apache. I see a following issue here for the below scenario. I need some inputs of whether this is most ...
1
vote
1answer
1k views

How to find IPS events in sonicwall syslog

I have a sonicwall os firewall, and the security dashboard shows about 9 intrusion prevention events in the last month. Most are called "Suspicious CIFS traffic 4". I have syslog servers setup with ...
6
votes
6answers
2k views

What does it actually mean when someone says their website is hacked?

I have seen many people say that their website has been hacked using some vulnerability. I never fully understood what this means. To me the only way to get control of website is get the FTP ...
3
votes
5answers
5k views

How to Investigate Wi-Fi Intrusion and where to look for evidence?

I'm trying to figure out how to configure a network so that I can tell what an intruder did (in the past) while on the network after they are detected. eg. If someone with a wi-fi enabled laptop ...
4
votes
2answers
398 views

What is the severity of a fake certificate?

I'm not a security specialist, thus reading this Google Blog post about a fake *.google.com certificate, raises a lot of concerns, if anyone can impersonate a website, especially a google website, my ...
15
votes
3answers
897 views

URL Shortening - How to verify if it is a non-malicious URL?

Again, I must mention that I have just started to learn about security. So, please bear with my newbie questions. If I receive a shortened URL from somewhere, say in an my-email or in a social media ...
3
votes
4answers
464 views

User-to-user encryption in addition to SSL for mobile phones?

I have learned that SSL is a protocol to implement machine-to-machine encryption and that there are protocols, like PGP, which implement user-to-user encryption (end-to-end encryption). There are ...
1
vote
2answers
329 views

How do I import a PKSC#12 private key into Java 5 (which may require PKCS#7)

I have a newer private key I have to import into an older server. How do I take a newer PKCS12 cert and import it into an older version of java that uses a different format?
4
votes
2answers
535 views

SSL Bit Length History

Sometimes I see web pages advertising a site's support for SSL with a given bit length (commonly 128), and saying that visitors need certain browsers that support this. Is 128-bit SSL common now, or ...
5
votes
2answers
452 views

Does IPv6 without NAT allow my ISP to identify/monitor/limit the number of devices in my network?

Does switching to IPv6 without any NAT mean my that ISP can identify/monitor/limit the number of devices in my private network more than they can with NAT (which is a necessity in an a private ...
3
votes
2answers
262 views

What's the point of using multiple checksum algorithm with “aide”?

In aide the author offers more than one hash algorithm to do the check-sum, why is that? Aren't a single one, i.e sha512 enough for determining file changes? I believe these algorithms are all ...
2
votes
2answers
1k views

Difference between Encryption and Verification certificate

What is the difference between the Encryption certificate and Verification certificate in Outlook? When exchanging certs, it just requires a digitally-signed message to be sent. It seems as though ...
8
votes
5answers
12k views

How is Chase Mobile Deposit Secure?

Chase has this app that allows you to snap a picture of a check with your phone and deposit that check into your account. How do they prevent: Someone from depositing a check that's not written to ...
2
votes
3answers
333 views

What are the security implications of Digital Lifeboat (or other p2p storage solutions)

From Digital Lifeboat's about us section Our solution is a distributed storage cloud service. Digital Lifeboat will compress and encrypt each file selected for backup. We then process your ...
1
vote
1answer
408 views

How do I verify, parse and process the results of the HTML5 keygen tag?

I'm investigating the HTML5 attribute Keygen and discovered that it sends this data on a Form POST to the server. Here is an example POST: ...
1
vote
1answer
142 views

How does window.w3ssss hack occur

Recently a .Net MVC 2 application on our server was infected with a virus / hack, it added some Javascript to the index.aspx pages of the site. While we have cleaned it up, I have not been able to ...

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