Collaborate Disseminate
I’m trying to get a serial number ( like $ssl_client_serial in nginx ) certificate without the private key and I don’t know how to do it.
I have drawn a scheme:
client <- HTTPS -> HAproxy or Nginx without private key … Continue reading How get serial number (or SHA1 Hash) certificate without private key?
What are the disadvantages of using SHA1 With RSA signature algorithm? Does it satisfy all security requirements?
Continue reading weakness of SHA1 with RSA signature algorithm
I received a Nessus warning of RDP as following,
The following certificates were part of the certificate chain sent by the remote host, but contain hashes that are considered to be weak.
|-Subject : CN=PBVA01
… Continue reading Check the signature algorithm of RDP certificate
I’m making a program to compare all the files on a 3Tb drive by hash and delete duplicates. I was initially going to use MD5, but was worried that with 3Tb of files, there was a slight chance of a collision that would cause a… Continue reading Would using both SHA1 and MD5 hashes of files help reduce the risk of deleting non duplicates
I am very new at John the Ripper and I am attempting to crack salted SHA-256 and SHA-512 passwords using version 1.8.0 (NOT the jumbo version) in a Linux VM. My question is, is it possible to crack the above passwords, given… Continue reading Crack Salted SHA-256/512 with John the Ripper
I read from a lot of sources that sha256 is not secure because it is fast. Most links that I read suggested bcrypt. However, I just want to know that if data is 64 cryptographically random byte, will attacker be able to find… Continue reading is it secure to use sha256 to hash 64 cryptographically random byte data with 12 byte salt?
In OpenLDAP documentation I can find information that it supports the following encryption schemes: MD5, SMD5, SHA and SSHA.
From these schemes the most secure is SSHA (SHA-1 with salt), but it still usus SHA-1 which has bee… Continue reading OpenLDAP security SSHA
first of all i know that you lot are against homework questions but this is really a matter of interest to me
i have a question like so:
which of the following is a hashing function:
a) SHA-1
b) CRC32
c) f(x)=0
d) a & b … Continue reading Is f(x)=0 technically a hashing function?
first of all i know that you lot are against homework questions but this is really a matter of interest to me
i have a question like so:
which of the following is a hashing function:
a) SHA-1
b) CRC32
c) f(x)=0
d) a & b … Continue reading Is f(x)=0 technically a hashing function?
Assume that I’ve used white noise from the classic “zener breakdown” circuit to produce 512 bits of random data.
If I use these as the key to a Veracrypt volume, is there any benefit to running 200,000 rounds of sha-512 on t… Continue reading Are many rounds of SHA needed for a random veracrypt key