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Questions tagged [hash]

114 questions
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haproxy tls hash algorithm

I'm using HAProxy 1.7.5 and openssl 1.1.0f (from Debian 9.5 stabel) to serve TLS connections. Now there are clients offering SHA-384 and SHA-512 based signature algorithms in the client hello message. So HAProxy uses RSA+SHA512 in the DH key…
C.Scharfenberg
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shasum returns an incorrect result

Calculating SHA256 gives me an incorrect result when I'm using "shasum": $ echo "abcd" | shasum -a 256 fc4b5fd6816f75a7c81fc8eaa9499d6a299bd803397166e8c4cf9280b801d62c - # or $ echo abcd | shasum -a…
gadded
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Can you set the number of rounds that ansible's password_hash jinja2 filter uses?

In ansible, it's pretty convenient to use something like this: - name: Make sure user password is set user: name: my_user password: "{{ user_password|password_hash('sha512', 'SomeSalt') }}" where user_password is the plaintext password,…
Tal
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How to know which files to specify exclusions for the installers of whitelisted apps using hashes with a Windows GPO?

To specify in the software restriction GPO, the hashes of executable/script files that are allowed to execute during the installation of a program run from, for example %LOCALAPPDATA%\Temp, during installation; how does one figure out what programs…
leeand00
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How can I distribute clients to servers evenly with hash_ip in Nginx as loadbalancer?

I know Nginx can use hash_ip to tie specific clients to a server. My question is when Nginx is hashing with client IP, does it distribute clients to servers evenly regardless of whatever client IP is used or It can be depending on which IP is…
asleea
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I switched my password hashing from md5 to ssha512, now exim4 won't accept smtp-logins

I have recently switched my password hashing from md5 to ssha512. This works fine with dovecot, so I can read incoming mail without problems. It does not work as well for exim4. Log output from exim4: less /var/log/exim4/rejectlog 2015-07-27…
David Mändlen
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Thawte SSL123 SHA-2 Intermediate Certificate Chain, Broken?

I attempted to upgrade my one Web site, running nginx, from a SHA-1 SSL123 certificate to a SHA-2 one. Thawte's Web page with intermediate CAs has "RSA SHA-2 (under SHA-1 Root)" and "RSA SHA-2 (under SHA-2 Root)" tables. If I use the CA bundle for…
CommonsWare
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Does openldap support pbkdf2 hash algorithm?

Since pbkdf2 (Password-Based Key Derivation Function 2) is a more secure hash function, so I wonder if current openldap implementation support pbkdf2 (pbkdf2_sha256 for example)? I have found some information on google about pbkdf2 support in…
user1817188
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ECDSA hash from OpenSSL command-line

Although it seems relatively easy to build an ECDSA hash programmatically, I've exhaustively searched for how to do it via command-line (in order to validate my results), and have found no examples of how to do it via the command-line. Does anyone…
Dustin Oprea
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Download and save a file with proof that it was downloaded from a specific server/url on a specific date?

Assuming the file was downloaded over http is this possible? I'm guessing there could be some way to do it using a hash and a timestamp however I'm not sure how you could prove nothing was tampered with including the downloaded file itself. EDIT: As…
ajw0100
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Correct procedure for RKHunter file changes

I run RKHunter on Ubuntu as well as as automated system / package updates. Last night I started receiving RKHunter warnings as listed below and whilst it's obviously easy for me to just do: rkhunter --propupd That could potentially mask someone…
user385762
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Courier-imap (authlib) - supported hashes?

Which hashes are supported by courier-imap (or maybe its courier-authlib job?)? Ive tried passwords hashed with {SHA}, {SSHA} and {SSHA256}. Only first seems to work, but i need to use last one (ssha256).
WombaT
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How are password encrypted in iRedMail?

I'm preparing new mail system with iRedMail. My developers needs info about how are hashes of password generated. I want to know how iRedMail generates hashes, is any salt used and what algorithm? I didn't find it in iredadmin files (this files are…
B14D3
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PBKDF2 (or BCrypt) hash implementation for Apache HTTPD or APR

Does anyone know of (simple) way to use PBKDF2 or BCrypt as a password hash within Apache HTTPD. The general scenario is that I have a resource in /private that I would like to restrict to a given group of users. Those users will have passwords…
Ben Walding
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Reset and then restore mysql password

I have linux root password. There's MySQL server on that machine. One of the site's ini was rewritten and now it can't reach the mysql database. I don't have mysql root to change the password for database user. The server owner is now in vacation,…
ABTOMAT
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