The tag has no wiki summary.

learn more… | top users | synonyms

1
vote
1answer
87 views

Random number for HTTPS MAC

Recently I found that Netscape used quite simple algorithm to generate random number for Message Authentication Code to establish an HTTPS connection (Nestscpe used time, process identification ...
10
votes
3answers
721 views

Where do you use ROT13?

I was reading through the docs for vim, and noticed there's a shortcut, for example g?w would transform the next word using ROT13. I also know that you can change the encoding of a Python file to ...
3
votes
3answers
328 views

How would I go about changing encryption methods on existing passwords?

If I have an application that is using a less secure method for storing passwords, such as SHA-1, how would I go about converting to SHA-256 or SHA-512?
5
votes
2answers
2k views

do I need French export compliance approval to submit an iOS app that uses encryption? [closed]

My company just (5th July 2011) received the following email from Apple: Starting in the first week of July, apps that meet the following criteria are required to comply with French ...
5
votes
2answers
489 views

Licensing issue for RSA and Rijndael algorithms

I'm using .Net to build a commercial application, i.e. a secure chat application. This application is using RSA and Rijndael algorithms. Do we need licenses for using RSA and Rijndael algorithms for ...
1
vote
4answers
207 views

How to handle the problem of modified encrypted files

I have a simple encryption/decryption application that I am testing to learn more about security. I found out that if the user modifies the encrypted file, then decryption fails because the hashing ...
0
votes
1answer
213 views

Legal Requirements for Software Makers

Since the Legal site of Stack Exchange isn't ready quite yet, I figured this would be the best place to ask this question. What are, if any, the legal requirements (or online resources for finding ...
0
votes
1answer
201 views

Is having decrypted compressed files in iPhone is a problem on submission?

I am about to submit an iPhone application. I do download Encrypted Zip files from a remote server and of course I do decrypt the files to view them to the user. Does that mean I need to answer YES ...
3
votes
2answers
372 views

What encryption method should I use?

I am looking for some information on encryption. Here's what I'm trying to do: Get unique information from our customer (an ID or something) Generate and encrypt some data on our side (using the ...
7
votes
2answers
260 views

Data encryption/protection - where to find info about high-level best practices [closed]

I feel that no one in the group I work in, myself included, really groks encryption and security, or the reasons behind making certain decisions. For example, we recently had a conversation regarding ...
10
votes
2answers
159 views

Saving critical data in (third party) databases

How do you save important(privacy-wise) user data like SSN, Credit Card Numbers and Addresses in databases? Scenario: Only data which needs to be available is saved. For eg, SSN is saved because the ...
5
votes
4answers
277 views

Copyright issues with encryption algorythms

I'm developing an application for Android/Java. This application is a kind of password manager, so I'm storing encrypted passwords under the hood of a master password. There are a number of encryption ...
3
votes
1answer
480 views

Are PGP keys as good for certificates as X.509 keys?

I'm working on a decentralized transaction processing system that needs both authentication and general encryption, and I have a design decision to make: should I use PGP or X.509 certificates? While ...
6
votes
3answers
495 views

Cross border data obfuscation and how to deal with it?

I am currently facing a situation where I will need to obfuscate data for legal reasons (these are countrywide rules and not specific to me) I will still need to work with teams outside this area who ...
2
votes
4answers
105 views

How to restrict viral file sharing

So I have a website I would like to make that would essentially be selling files. For the sake of discussion let's say that these files are like the raw text of a book. If somebody buys a file from my ...