Error when trying to apply Always Encrypted encryption on aspnet_Membership table

I’m trying to encrypt the Email and LoweredEmail columns on a SQL database using Always Encrypted encryption using SSMS and I always get the same error:

Lock request time out period exceeded. There is no user table matching the input name ‘(dbo).(aspnet_Membership)’ in the current database or you do not have permission to access the table.
I still get the same error when I log in as the SA account, sio I guess that it’s not a permissions problem.

SSMS select column
SSMS key
SSMS proceed
SSMS summery
SSMS error

EDIT *** Added the PowerShell Script

Import-Module SqlServer

$password = “”
$sqlConnectionString = “Data Source=GALADRIELSKYLINE;Initial Catalog=SkylineMembership;User ID=sa;Password=$password;MultipleActiveResultSets=False;Connect Timeout=30;Encrypt=False;TrustServerCertificate=False;Packet Size=4096;Application Name="Microsoft SQL Server Management Studio“”
$smoDatabase = Get-SqlDatabase -ConnectionString $sqlConnectionString

#Add-SqlAzureAuthenticationContext -Interactive

#Add-SqlAzureAuthenticationContext -ClientID ” -Secret ” -Tenant ”

$encryptionChanges = @()

$encryptionChanges += New-SqlColumnEncryptionSettings -ColumnName dbo.aspnet_Membership.Email -EncryptionType Deterministic -EncryptionKey “CEK_Auto1”
$encryptionChanges += New-SqlColumnEncryptionSettings -ColumnName dbo.aspnet_Membership.LoweredEmail -EncryptionType Deterministic -EncryptionKey “CEK_Auto1”

Set-SqlColumnEncryption -ColumnEncryptionSettings $encryptionChanges -InputObject $smoDatabase

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I am trying to figure out if the following string is encoded or if it is encrypted and what algorithm was used in either case. Is there some easy way, to try all sort of different algorithms at once maybe?

This is what I am talking about:


Open WiFi Network Where All Confidential Communication is Encrypted Through Other Means

Imagine the following scenario:

  • Users connect to an open WiFi network (no password, no encryption)
  • All users stick to secure transmission protocols for all confidential data (HTTPS, SSH, VPN, etc.)
  • Users devices do not accept any inbound connections

Would this scenario provide a reasonable level of security for the users involved? Or perhaps more importantly, does a malicious user’s presence on an unencrypted WiFi network pose a known threat to the other users?

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I tried to follow a similar guide for Metamask to retrieve the phrases ( but this didn’t apply as the log file seems to be encrypted. I assume it’s encrypted as some of the data is in plain text:

IEC 61966-2-1 Default RGB Colour Space – sRGB
XYZ b™ ·… ÚXYZ P meas
XYZ 3 ¤XYZ o¢ 8õ sig CRT desc
-Reference Viewing Condition in IEC 61966-2-1

But most of it looks like this:

óJE-ºMzÔ#Ä»£ÆhRO«_…ôË(K9Õ2åË>¨%ŽÔB5š5ëÇÒji®¬k¹<9z)ôG¹c”ºécë+è0¨K®Jj^JSŽ—šArÄïíRÇÉ#ÝÒK3{%”#·Â(¿/Ĭ(Šv/,äþ^‚ò$â$õIj—èVRmuè‡Zôóñi´.¤¦iXyçáß$´~þ¢õG 0M÷RŒí䛀ßs‘6y‰÷L%žY*.Di6¯·iÏ+™Öd­ãè»ñ±ÖÜWá³chm›N­˜DùšiÄV é<ƒÚS ¤ÒêAíq’

The developer has been useless and of no help so I am desperate here looking for some advice on where to start. I couldn’t locate an LDB file linked to this so have to assume it’s all in this log file.

Thanks in advance.

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An application I admin (but did not develop or implement) claims to be storing passwords in a database using “reversible encryption.”

I have access to the database table, and was able to work out that they’re really only obfuscated, and can determine the clear text values by applying a simple mapping. This seems very bad, am I right to be concerned? Recommended next steps?

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I try to mount an encrypted hdd. This works fine with this command in the terminal:

sudo cryptsetup luksOpen /dev/sda1 myDisk --key-file /root/keyfile

The hdd is decrypted and mounted after this command. Since I want to do this auto. on boot, I tried to put this command in a bash script.
Just the command above, nothing else. For some reason, if I execute the script via terminal:

sudo bash

I get a message:

Failed to open key file.

I tried it with the password instead:

echo "myPassword" -n | sudo cryptsetup luksOpen /dev/sda1 myDisk -d -

which worked in terminal fine, but in the script it did not.
Using /etc/crypttab instead is not an alternative, since there are multiple ext. hdds used, which will later use the same keyfile, but I don’t have access to the hdds and the UUIDs now.

I am grateful for any advice
BR Michael

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I gather from the cryptsetup manpages that LUKS2 uses argon2i by default for strengthening a user-password to decrypt the partition. However if a 256 bit keyfile with data from /dev/random, how does a KDF make guessing that password harder?

Wouldn’t you just have the 2^256 probability either way then? So an attacker would just try and guess the password that’s used for e.g. AES-XTS and not the keyfile.

So if I were to use a 256bit random keyfile(longer doesn’t seem to do anything useful either),
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Does it help me if I generate a 1MB keyfile and set argon 2i(d) to 10k iterations and use 2GB ram?

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Before the data is sent from my server to the cloud service the data is encrypted with my secret keys that are only ever stored on the on-prem-server.

Since I am using an encryption algorithm that is considered secure and the keys never goes to the cloud, would the data I send to Azure/AWS be considered personal data under GDPR? Would I for example have to include the storage service as a sub-processor in my published list of sub-processors?

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Is this a safe way to do authentication and be sure a user can’t spoof a different user id in API calls since they won’t be able to encrypt to a different user id without the key for Fernet that’s saved on the API side?

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