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Questions tagged [encryption]

Encryption is transforming information through a cipher to protect it from unauthorized access.

Encryption is the process of taking some information (the plain text), and transforming it (usually with a cypher and a key) so that it is secure. Assuming a sufficiently strong cypher and key have been chosen, this cyphertext can be shared widely, without the information being compromised.

The reverse of Encryption is Decryption, where the process is reversed (normally by someone holding the key and cypher details) to return the information.

See the Wikipedia Page for more details.

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How do I setup ipsec VPN between APIs on different servers?

There are 2 sets of API each hosted in 2 different organisations: my client's organisation and her partner's organisation. The servers from the 2 organisations communicate between each other through the APIs hosted in each organisations. My client's…
xenon
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What would basic encryption key management do's and don'ts look like for an organization that has a low amount of keys?

The company I work at, just had a need for encryption to be utilized. What would be the best practice for taking care of this key, during its lifecycle? Where should I keep it?
Rhett Bohling
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Decrypt file for specific session in CentOS 7

I am looking for a way to encrypt my file that can be decrypted for the current terminal session. The moment we exit the session, it gets encrypted again. A use case for this scenario would be: Let's say if someone wants to gain access to the file…
EEE
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win10 bitlocker enrypts partition after update

one of my clients has an laptop with Win 10. After the client run the latest Updates apparently BitLocker started to encrypt the files/Partition WITHOUT CONSENT and WITHOUT PROVIDING ANY RECOVERY KEYS. When the client starts the laptop, a blue…
user13226980
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Might "Require TLS Encryption" in Exchange mail-flow rules cause compatibility issues for e-mail?

Picture of how I'm forcing TLS. This is essentially forced TLS. Should "Require TLS Encryption" be required for microsoft exchange mailflow rules? I'm worried about compatibility issues, e-mails not being sent or received if I force TLS encryption…
BornPerson
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Read files from an encrypted disk?

Is it possible to read from an LUKS-encrypted disk via the terminal, e.g. by booting from a live Linux system on a USB flash drive and accessing the encrypted host computer's hard drive?
david
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How to create a local email relay for encrypt mails

We have a Ubuntu 20.04 server with redmine installed. Redmine send automated mails through an external smtp provider. We have also other services that do the same thing (teamcity etc) Everything works fine, but now we need to use gpg for encrypting…
Jepessen
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How to set up IPsec between two instances within the same VPC assuming that the traffic between them isn't secure?

I want to set up a secure transit of data between services running is different instances. First , I thought about setting up an EFS but I don't really like that an instance could have an access to another one. Then , I thought about VPN and again…
am fs
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OpenVPN faster with encryption than without it

I would've expected OpenVPN to achieve higher speeds when encryption is disabled, but the opposite is true. When setting the cipher to AES-128-GCM, the speed between two of my computers is 580 to 613 Mbit/seconds: Mon Jun 15 11:46:06 2020 Data…
nick carraway
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Is it possible to umount a drive from where a program is running?

I want to run some confidential program on a cloud server. In order to protect it from being copied, I can encrypt it into a drive and mount the decrypted drive to run it. However I want to umount the decrypted drive once it sets up running in…
George Y
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RDP Connection closes due to Encryption error

My azure windows VM has been working fine for 3 months since it was set up. I tried to reconnect today via RDP and it came up with Remote Desktop Application - because of an error in data encrption this session will end. It worked several times…
Gordon Ireland
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Generate PFX file using P7B file with private key data in text format

I have the certificate in P7B format and along with I have private key data in text file format as below. Can anyone please help how can I generate the PFX certificate using this data? -----BEGIN PRIVATE KEY----- // Long Encrypted text -----END…
sumit vedi
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Modify OpenLDAP hashing algorithm

I have a CentOS7 Server running slapd 2.4.44 and I'd like to modify the default hashing algorithm being used. Instead of using SSHA, i'd like to use SHA-256 or SHA-512. I've been having trouble finding documentation on this and I'd like to ask if…
redhatsamurai
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How to renew an expired certificate for PCs that must connect via VPN to a server in Azure?

I created my self-signed certificates using PowerShell per https://docs.microsoft.com/en-us/azure/vpn-gateway/vpn-gateway-certificates-point-to-site#clientexport a year ago and it's time to renew them. I can't even VPN into the Azure cloud I set up…
ShieldOfSalvation
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Openldap re-hashes already hashed password

I have an openldap with ppolicy on SSHA-512. When clear text password is sent from client, the password will be stored as SSHA-512, fine. My problem appears, once already hashed password is send e.g SHA, SSHA, or even SSHA-512, the hashed value is…
FastFoot
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