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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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Modify SonicWALL Global VPN Client Encrypted RCF

Presently rolling out VPN to access to a small office. I am using a SonicWALL TZ-170 running SonicOS Enhanced 3.4.1.0-2e. I've created an encrypted RCF file for the clients to import into the SonicWALL Global VPN Client. Is there a way to…
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How to install a certificate and encryption on SQL Server without downtime?

So I have a SQL Server 2016 instance running a mission critical workload. I want to install an SSL/TLS (publicly signed) certificate into the server, and enable encryption. But I don't want to incur any downtime during this process. I am worried…
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How to configure OpenVpn server with multiple clients using asymethric key

Introduction I want to configure OpenVpn with 2 clients and 1 server but i only mannage to use it with 1 server and 1 client. Setup Server ip: 10.10.102.146 Client ips: 10.10.102.138 Server configuration (tunel.conf): local 10.10.102.143 remote…
itasahobby
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How do I get a certificate to sign a file and make it trusted?

I may not be using the correct words to describe what I'm trying to do, but I'd like to have my own certificate to digitally sign files so they can be "trusted". I'm very technical, but have little experience using certs. I have a domain and it's…
William YK
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NextCloud encryption key backup

I’m looking into setting up a self-hosted NextCloud, and back it up to an external storage (Dropbox, S3...). I want this backup to be encrypted. Fortunately, that is supported natively by NextCloud. All I have to do is make sure that the private…
aspyct
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Forcing encryption for outgoing SMTP with Postfix *per User*

I'm trying to configure postifx smtp_tls_policy_maps so that i can set per user outgoing emails must be encrypted. One example is the email provider mailbox.org. As one can infer from the job offers, the company also relies on the open source…
Gurkengewuerz
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Unable to create cloud KMS encrypted PVC in GCP: googleapi: Error 400: Invalid resource usage

I'm trying to set up CMEK in my cluster as per the details mentioned here: https://cloud.google.com/kubernetes-engine/docs/how-to/dynamic-provisioning-cmek#dynamically_provision_an_encrypted I have deployed the Compute Engine Persistent Disk CSI…
Meghana B Srinath
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Can MS AD Certificate Services maintain both public and private keys in active directory?

Is there enough control over AD user properties to have custom fields (one with only SELF having read permissions) and with Certificate Services to automatically maintain/auto-renew certificates and place both the public and private keys into…
joshhemphill
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Lock removable drives to domain/network with BitLocker

I have a network/domain of PCs that users use and don't have administrative privileges. Occasionally, they copy some data to USB drives to move between machines. I need to prevent data written to those drives from being accessible outside of the…
Matviy Kotoniy
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Outlook sMIME certificates location, errors, and background work

We have an situation. Our customer can get sMIME encrypted mails and reply to that email. But when he wants to send it with new email he is getting an error message as if the recipient email does not have an public key. So we have checked the…
CanBuyukburc
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DEBIAN 9 Encrypted home on separate disk acccess via SFTP with no login shell

i have a Debian 9 server with /home on a separate disk. There are mutiple users with sftp accounts, they all have no login shell to increase security, so plain sftp only. Similar to…
Josi Dunk
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server host key usage problem

I have my server host key(private key) in Openssl format that i want to use for server authentication. I prefer to use the trust model that client local database should associates each host name with the corresponding public host key. Since openssl…
Prasad Roy
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Intermitent bug on encrypted swap over Ubuntu 18

Wanting encrypt swap and the only script I found to do it as I want is it: sudo -i cd /root mkdir -p ./.myfolder cd ./.myfolder swapsize='4G' curdir=$(pwd) flNmDev="myfile" flPtDev="$curdir/$flNmDev" …
Paul
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AWS - Encrypting/Decrypting sensitive consumer data - Does my workflow look secure?

I will be using AES-256 symmetric encryption VIA Open SSL. Please have a look at my workflow and let me know if it looks secure. Encryption workflow 1: APP will encrypt data securely using Open SSL with PHP (A unique key will be generated for each…
Logical Nonsense
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Does OpenSSH Automatically Encrypt All File Transfers Out Of The Box?

Please help me dispel any confusion I may have about my Windows 2019 Server OpenSSH SFTP configuration. I've seen online that there are so many different ways to set this up and I'm trying to make heads or tails of it. I've currently got it working…
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