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Questions tagged [encryption]

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

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IPSec Server Encryption algorithms under linux configuration

i need to configure IPsec server, protocol ESP to use the following encryption algorithms: AES-CBC-128 with a Secure Hash Algorithm (SHA)-based HMAC and AES-CBC-256 with a Secure Hash Algorithm (...
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28 views

How to reinstall MariaDB?

I had MariaDB 10.2 installed on Ubuntu 16.04. and I was using MariaDB encryption. I had to uninstall MariaDB so I have uninstalled with following command: apt purge mariadb-server -y That ...
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0answers
46 views

How secure is qubes os? [on hold]

How secure is qubes os? Lets say i have bought dedicated bare metal (NOT VPS) server in some country. Installed qubes os, LUKS encrypt disk and run some PROCESS in security qube. Now, lets say ...
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Are Oracle auto_login wallets transportable?

We have a 11g Oracle database that contains encrypted data (TDE tablespaces). Oracle wallet is used, whereby ENCYRPTION_WALLET_LOCATION in the sqlnet.ora points to the directory containing the wallet ...
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1answer
49 views

How to send encrypted message using postfix?

I have some application on ubuntu 18.4 vps. i can send mails using postfix but gmail says it is not encrypted. postfix config file is: # See /usr/share/postfix/main.cf.dist for a commented, more ...
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1answer
18 views

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 -...
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2answers
21 views

Information needed on availability of RAID controllers that have hardware encryption capability

I am somewhat familiar with the RAID controller card offerings in Dell servers, such as PERC H730P in their PowerEdge servers. And also some of the LSI 9xxx series RAID controller cards, that allows ...
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36 views

Creating a JAVA Keystore (.jck) with a Symmetric Key

I have a need to use a common key on 2 platforms. The key was created on Linux. It was wrapped and sent to platform 1, where it was added to the local keystore. I need to create the .jck there on ...
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38 views

windows server 2016 hacked for the third time [duplicate]

hello everyone I'm using a windows server 2016 as web server that runs a WebLogic application on a specific port (7001) and I have almost done every thing I know or I read about on the internet to ...
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28 views

AWS: SES Rule: S3 Action: fails when choosing bucket that has encryption enabled

I can not create a SES rule to put emails into a S3 bucket that has encryption enabled (on the bucket). Created a bucket and enabled encryption. Add a SESPut bucket policy to allow SES. https://docs....
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1answer
31 views

AWS SES Encryption vs S3 bucket encryption

SES Configuration for a SES rule allows one to have the email be put into a S3 bucket. Under this configuration, the option "KMS Key" is available, which would have SES encrypt the email before ...
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1answer
24 views

e-mail encryption during transfer

for the sake of simplicity i want to visualize the dangers of sending an unencrypted e-mail. I'm just not sure WHO can read unencrypted e-mails. Lets say i'm using Office365 as mail provider and i ...
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1answer
11 views

operators in CipherSuite configuration for SSL

I have SSLCipherSuite configured as High:Medium:!aNULL:!eNULL:+High:+Medium Here I can understand to match or include the ciphers with triple DES (High) and 128 bit encryption (Medium) at start and ...
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1answer
45 views

LVM - Should I encrypt physical volumes or logical volume?

I have two hard drives and I'm about to build a backup system. Now I'm wondering which solution would be the best. I encrypt disk1 and disk2. After mounting these I create a volume group and logical ...
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1answer
90 views

End-End Encryption on SSH passing though 'untrusted' jump servers

I need to SSH between 2 "clients", both behind CGNATs, by using a third party server as a jump. This use case has been covered on this site already but: How do I make it so the SSH traffic is not ...
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1answer
348 views

Enable BitLocker with PowerShell on Windows Server 2016

I have been fighting with this, previously I believe I was able to set it up using the GUI in File Explorer like you would on a Windows 10 machine. However after installing the BitLocker feature and ...
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1answer
146 views

Configuring Imported Self Signed SSL Certificate to SQL Server Express

I've created a self-signed certificate and configured with SQL Server Express. The encryption works fine on my PC. When I export the certificate to another PC I can import fine and can see the ...
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29 views

Libreswan 3.15 won't initiate opportunist encryption sessions, but 3.23 will - I need 3.15

I have two test systems - west running Libreswan 3.15 & east running Libreswan 3.23 (both are CentOS 6). Both have essentially the same configuration: east.conf (west.conf is essentially the same)...
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2answers
38 views

Is it possible to secure a VPS from its seller/provider?

I have bought a VPS hosted in the USA through an Iranian company (I live there, it's quite hard to buy one directly.), and I am wondering if it is possible to secure the system against potential ...
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3answers
639 views

Samba SMB Encryption - How safe is it?

I recently set up a Samba server on Linux that allows me to access files on this server on Win10 PCs in my local network. But I wondered if I could access this shared drive over the internet since I ...
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1answer
480 views

How to setup logrotate with GPG to encrypt for GDPR?

As per GDPR all private data should be encrypted, so I need to encrypt all logs and retrieve them for auditing. I have chosen to perform the encryption during log rotation and to use GnuPG as my ...
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1answer
885 views

How to enable support for Authenticated encryption (AEAD) cipher suites on Windows Server

SSL lab test provides grade B for one of my websites due to AEAD issue. I was wondering how we could enable AEAD support to improve the grading to A. I am using windows server 2008 R2, TLS1.2 is ...
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1answer
127 views

Encrypting properties with “eyaml edit” without a private key?

I would like to use eyaml edit to edit my Puppet/Hiera configuration files. My configuration files are a mixture of encrypted and plain text content. I want to use eyaml edit to encrypt certain ...
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1answer
94 views

HAProxy-Apache encrypt connection

I have haproxy_server and apache_server in different datacenters, what is the best way to have encrypt connection between them? It’s working with the certbotand with the following configuration: ...
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0answers
54 views

Enable hardware encryption in Bacula with LTO-7

Does Bacula support encryption by using the AES-chip which is integrated in LTO-7 Tapedrive? Or is there a plugin like "stenc" that could be integrated in Bacula?
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1answer
211 views

Mount LUKS-encrypted drive at boot, but only if drive is present

I have a series of drives that are are all encrypted with LUKS/dm-crypt. They are not all guaranteed to be plugged in at the time the system boots, but if they are, I would like to ensure they are ...
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1answer
29 views

Securely encrypt backup for postgres DB

I do not want to encrypt my postgres DB. However, I want encryption at OS level, such that if the files(such as backups or configurations) are moved to any other system, it should be unreadable or non ...
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1answer
46 views

What is the data flow if using an HSM with an encrypted Database

How would someone implement an HSM if they wanted to encrypt all the tables of a database for example in a 3-tier environment? Does the app server query the DB, get the encrypted blob and ask the ...
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0answers
46 views

USB authentication and Encryption on Windows Environment

My boss ask me that he want to secure USB thumb drive usage on our company. He want the USB thumb drive data un-encrypted when some one authenticate to our Active Directory (AD) server whether locally ...
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0answers
20 views

“Windows does not appear to be on the drive from which it boots”. Veracrypting corporate laptops

I work on the Help Desk of an org. I have been encrypting laptops with VeraCrypt for months now, but suddenly running into the message above in the title. The laptops getting this error don't have ...
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2answers
135 views

Database encryption or drive encryption

I'm thinking about encrypting the database that contain sensitive user data. Is it better for performance to encrypt the entire drive by using something like bitlocker or is it better to just encrypt ...
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1answer
680 views

Setting “Store passwords using reversible encryption” to disabled

The setting "Store passwords using reversible encryption" is enabled in our domain and we need to revert this. What happens when this is changed? Will all passwords be encrypted? Or will all users be ...
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1answer
941 views

Encrypted or Password Protected Docker Container

I have some Docker containers. I want to login the containers with a password. Is it possible? If it is not possible then is there way to encrypt some folders in Docker? I have tried rkt as well. I ...
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2answers
480 views

Difference between SSL VPN tunneling and SSL in HTTPS [closed]

I'm a beginner, and this is probably an elementary question, but I can't figure it out through some googling. I'm learning about VPN tunneling right now, and am generally not clear on how VPN ...
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0answers
2k views

How to encrypt Samba traffic?

How would I create encrypt the traffic that Samba communicates between the server and the client? My settings without encryption look like this: /etc/samba/smb.conf: [global] workgroup = ...
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1answer
376 views

Nginx ciphers settings [duplicate]

I am trying to understand ciphers settings in nginx. ssl_protocols TLSv1 TLSv1.1 TLSv1.2; #What TLS types that are supported ssl_prefer_server_ciphers on; #Use the type that the server prefers ...
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0answers
153 views

Bitlocker on Hyper-V server

I have installed Hyper-V server on my new machine and then I added the Bitlocker function and initialized TPM. Now, I am trying to enable Bitlocker on the HDD. I need: encryption key saved on TPM ...
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0answers
212 views

Encode and decode pathname in nginx

Normally files can be accessed at: http://example.com/cats/cat1.zip I want to encode/encrypt the pathname (/cats/cat1.zip) so that the link is not normally accessible but accessible after the ...
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1answer
35 views

Is it safe for Windows remote desktop ask for username/password first before check certificate?

When connecting to a Remote Desktop on the client side: (in my case Windows 8.1 RD client to a Windows 10 Enterprise 1709/16299.98) We need to enter&transfer username/password on the client first ...
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1answer
281 views

SFTP with data encryption at rest [closed]

Sorry for my ignorance, I am having a peculiar doubt in setting up an SFTP server, setup an SFTP server with password/keyfile for authentication. The SFTP user directory should be encrypted at rest. ...
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0answers
55 views

Token slot_id order changes when restarting

Hello and thanks for taking the time to read this. Issue: I have 4 token devices with the same model and the same name, I rely on the slot id (and the serial) to identify wich one to use. After 5 ...
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1answer
45 views

How to create a encrypted linux container to deploy web application on external server?

I need to deploy a Rails application to client's on-premises server and I want to prevent the viewing and modification of source code. Client has physical and root access to the server. How can I ...
2
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1answer
91 views

Cryptsetup lost password but open device

first, I know it is a very bad situtation and one should always have a backup of keys but the problem is not caused by me. I only was ask for help. The drive is encrypted using cryptsetup with luks. ...
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1answer
437 views

How to store hashes in ipsec.secrets when using Strongswan with eap-mschapv2?

I am using eap-mschapv2 as an authentication method. It requires to store plain text passwords in ipsec.secrets. I.e. I have a password like this: user : EAP "mypassword" I want to use something ...
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2answers
123 views

What happens when an encrypted drive that is running (and thus decrypted) is unplugged? [closed]

Encrypted drives are usually decrypted at boot, so if the system is running live and the drive is unplugged while "hot" and plugged into another system will the data still be unencrypted? I may be ...
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0answers
17 views

Genereting a key pair in gpg using some kind of an initial private key/subkey

I have an openpgp library in js. Here's the code: var openpgp = require('openpgp'); var privKey = getExternalPrivKey(); var options = { curve: 'secp256k1', userIds: {name: "my_user_id", ...
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1answer
469 views

How do I change encryption from RC4 to AES in order to allow RDP to my remote servers?

I have multiple physical and virtual servers on a company domain. The physical and virtual servers are all still Windows 2008 R2. The clients have all been updated to Windows 10 from Windows 7 in ...
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2answers
522 views

Mailbox on-the-fly decryption (dovecot)

To avoid casual mailbox snooping for an IMAP server I am thinking of "transparent encryption" setup that would: Public key encrypt incoming messages at local delivery time Private key decrypt said ...
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0answers
165 views

Self-signed secure boot initramfs and intel-ucode

I've set up a self-signed refind and linux kernel. The problem is that intel-ucode and initramfs resides on /boot, which is an unencrypted fat32 ESP filesytem - UEFI specific. How can I secure my ...
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2answers
602 views

Multiple VLAN's - Multiple SSID or Single SSID and Multiple VLAN's (radius)

I have a question regarding best practice. I have a case where i need multiple VLAN's in wireless networks. What is more performant? Having multiple SSID and each of them have a VLAN (this also mean ...