Skip to main content

Questions tagged [encryption]

Encryption is the process of transforming plaintext using a cipher to make it unreadable to anyone except those possessing the key.

18 votes
5 answers
1k views

Database Encryption Security

I am encrypting and decrypting my database data from my web applications API. If my web server is compromised, what is to keep someone from using that same method to retrieve the data? For example, ...
ksexton's user avatar
  • 183
19 votes
5 answers
5k views

The AES Crypt implementation hashes a password 8192 times to generate the key. Is this necessary?

I'm considering encrypting some small files (hundreds of kb apiece) using the AES Crypt reference implementation. Looking at the source, it seems that the encryption key is derived from the IV and the ...
user avatar
41 votes
6 answers
11k views

How secure are my passwords in the hands of Firefox using a Master Password?

I'm relying on Firefox to remember my passwords, using a Master Password of more than 25 characters. How secure is this set-up?
Roger C S Wernersson's user avatar
77 votes
5 answers
130k views

Advantages and disadvantages of Stream versus Block Ciphers

Encryption algorithms such as Blowfish,AES,RC4,DES and Seal are implemented in one of two categories of ciphers. What are the advantages/disadvantages to the type of ciphers?
Eric Warriner's user avatar
26 votes
4 answers
4k views

IPsec (Internet Protocol Security) facts

Internet Protocol Security (IPsec) is a successor of the ISO standard Network Layer Security Protocol (NLSP). What are the advantages, disadvantages, other interesting facts regarding the protocol?
Eric Warriner's user avatar
24 votes
3 answers
8k views

How does a crypter for bypassing antivirus detection work?

I am talking about crypters used to encrypt files like viruses and keyloggers for the sole purpose of bypassing antivirus detection. How do they work?
gbr's user avatar
  • 2,020
21 votes
4 answers
12k views

What is the benefit with using encrypted RAM?

I sometimes hear that encryption is used for the RAM, but I don't really understand why this is needed. Why is RAM needed to be encrypted? And is this done by the hardware, the operating system or ...
Jonas's user avatar
  • 5,223
11 votes
5 answers
2k views

Encrypting a disk that has stuff on it?

Ok, so a pretty big disk ~1-2TB (90% full, multiple partitions + 2 operating systems on it), needs to be encrypted and zeroed-out, and it's a bit too much data for backing it all up before encryption. ...
tkit's user avatar
  • 3,362
13 votes
4 answers
3k views

What kinds of SSL certificates are usable for encryption?

I know that Verizon SSL certificates cost close to $600. There are couple of cheap alternatives, but I never really understood why Verizon does not offer such certificates. Look for RapidSSL at ...
Sairam's user avatar
  • 723
30 votes
8 answers
19k views

Do secure phone lines exist?

I could be out of context here about security, but , I would like to know if phone lines or phone calls over VOIP could be made secure . I know that Skype and other VOIP service providers have to ...
Sairam's user avatar
  • 723
51 votes
3 answers
115k views

How can I check that my cookies are only sent over encrypted https and not http?

I read a blog post GitHub moves to SSL, but remains Firesheepable that claimed that cookies can be sent unencrypted over http even if the site is only using https. They write that a cookie should be ...
Jonas's user avatar
  • 5,223

15 30 50 per page
1
390 391 392 393
394