Tagged Questions
2
votes
2answers
93 views
Decrypt from cipher text encrypted using RSA
I am sniffing a client side application traffic and I found some encrypted data. I am not able to decrypt it. Information which I have is
Public Key:
...
2
votes
2answers
34 views
Does glibc2 version of the crypt function still use DES for alternative hashing methods?
I'm trying to understand how typical Linux distributions generate the password field for entries in /etc/shadow. I can't figure out what encryption algorithm is being used to produce the encrypted ...
4
votes
3answers
164 views
What would the cryptographic impact be of knowing the output of /dev/urandom?
Another noob question, I know, but something I'm unsure about.
If I somehow magically knew the output of /dev/urandom at any given time, how much would that weaken a given encryption system? Or, ...
15
votes
3answers
458 views
If I have two identical linux virtual machine images, will they generate identical random numbers?
A really noob question, I know, but something I was wondering about this morning. If this were the case, would they encrypt things identically?
Or maybe someone could direct me to a helpful research ...
3
votes
3answers
362 views
Pseudo Random Generator is not initialized from the (entropy pool)?
The RHEL5 manuals state that /dev/urandom will use the entropy pool until it's exhausted, and then it will resort to a fall-back pseudo-random algorithm, so that it will never block.
But when ...
-1
votes
1answer
161 views
dm-crypt and change ask for password text [closed]
I use dm-crypt how can I change ask for password text:
"No key available with this passphrase."
this is store in libcryptsetup.so.1 probably:
# grep "No key" * -R
Binary file ...
0
votes
4answers
443 views
What voip client support manual encryption?
In pidgin there is a plugin that we can use to encrypt our messages in chat windows .. Is there anything simular for voip (pc to pc) ? any client that support manual encryption for voice data?(linux)
5
votes
1answer
1k views
Using TPM for full disc encryption?
E.g.: Can I make a better full disc encryption with e.g.: LUKS using the TPM? How?
2
votes
3answers
101 views
Could an Encrypted VG/Image compromised?
I mean if I encrypt my ""full system"" so that everything (besides the /boot) is in an encrypted VolumeGroup (Linux).
So I store my /boot on a flash drive, thats always next to me.
Q: can the ...
31
votes
2answers
3k views
Is a rand from /dev/urandom secure for a login key?
Lets say I want to cookie for a user, would simply going to /dev/urandom, generating a 1024 bit string, checking if it already exists (and looping till I get a unique one) suffice? Or should I be ...
