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Questions tagged [cipher]

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1 vote
1 answer
290 views

How to disable CBC ciphers in Firefox

The ssllabs.com browser check shows a list of cipher suites supported by my browser. Some are labeled as WEAK, I think because they do not support perfect forward secrecy. I can disable some of them ...
Roman's user avatar
  • 143
0 votes
1 answer
4k views

How to include key exchange algorithms required to connect to router using OpenSSH client?

With OpenSSH_8.9p1 for Windows, I'm trying to connect to a NuCom router NC-WR764TGV: ssh [email protected] Output: Unable to negotiate with 192.168.1.1 port 22: no matching key exchange method found. ...
jamacoe's user avatar
  • 184
0 votes
1 answer
2k views

How to check which ciphers are included in "HIGH" ciphers constant

From the documentation I found HIGH "High" encryption cipher suites. This currently means those with key lengths larger than 128 bits, and some cipher suites with 128-bit keys. The ...
szydan's user avatar
  • 111
0 votes
1 answer
37 views

Rename files with symmetric cipher

I would like to batch obfuscate file names (not file content) with a simple symmetric cipher. So that I can rename them back afterwards. For example, using the online blowfish encryption on http://...
Dr Ljotsson's user avatar
1 vote
0 answers
2k views

Allow specific weak cipher in Chrome

I have to connect to a system that uses a weak TLS cipher : TLS_RSA_WITH_AES_256_CBC_SHA. This is an embedded web server in a physical appliance and there is no firmware available to change that ...
Jereck's user avatar
  • 11
0 votes
2 answers
664 views

Why is folder efstmpwp located in C drive even when I am ciphering D drive in Window 8?

I am trying to wipe all the deleted data out of my laptop using cipher command on Window 8. When I use cipher /w:C, the folder efstmpwp is created in C drive, which supports the cipher process. But ...
Eager-to-learn's user avatar
-1 votes
1 answer
740 views

Is it normal that running a "wipe free disk space" utility finishes quicker the more times it's used?

I used cipher /w:C to wipe the free disk space on my C drive. The first time I did it, it took say 2 days. Then two days later I used it, and it took 1.5 days. Then again I used it and it took 1 day. ...
useraccount001's user avatar
0 votes
2 answers
118 views

If a harddisk has format errors, would running disk wipe on it still wipe everything?

If a hardisk is connected via USB to Windows and I attempt to open it, Windows says it needs to be formatted before it can be used. If I ignore this message and run disk wipe on it (like the cipher ...
useraccount001's user avatar
0 votes
0 answers
246 views

Windows 2012R2 IIS8.5: How to change the Key Exchange being used

I have a server using: Key Exchange: ECDHE_RSA (0xae06) 256bits I would like to change this to : Key Exchange: RsaKeyX 2048bits Is this something that can be done at the server level or is this set in ...
VACoder's user avatar
1 vote
2 answers
394 views

Cipher + Public key - S/MIME implementation on MS Outlook

I'm trying to understand the S/MIME implementation, and maybe I'm wrong. I'm so stuck that I will try to explain ... Sign a mail works as I thought it would work. But, I supposed that when you send a ...
Morcilla de Arroz's user avatar
2 votes
2 answers
3k views

SFTP using Ciphers and Key Exchange

Previously I was gaining access and transferring files (SSIS execute process task) with a .txt file configured as: option batch on option confirm off open sftp://Username:[email protected]:22 -...
Kim Avery's user avatar
1 vote
2 answers
814 views

Windows 10 TLS/SSL weird issues (BAD_MAC_READ, programs queries interupted, ...)

I recently finished to assemble my new PC and installed a Windows 10 Pro from the Microsoft utilitary tool. All went fine, but suddenly, after like a week, errors began to pop in : On Firefox (...
Alex's user avatar
  • 123
1 vote
2 answers
240 views

What's the most secure cipher for ssh that can send files at USB3 speeds? (~480Mbps)

I have a gigabit connection between my PC and my server (iperf3 tests show ~930Mbps) and I want to be able to transfer large files as fast as possible. The hard drive on the server is connected via ...
dwf's user avatar
  • 11
27 votes
1 answer
22k views

How to wipe unallocated disk space in Windows

Due to the nature of how filesystems like NTFS work, files that are deleted "permanently" from within Windows aren't immediately deleted - they're simply marked as deleted from the Master File Table (...
Hashim Aziz's user avatar
1 vote
1 answer
660 views

How to Zero out free space on a pen drive on Windows?

I am looking for commands or methods whereby I can just write all zeros to the free space on a Pen drive on Windows OS. The existing files should not be affected. There's a built in command called '...
rajeev's user avatar
  • 1,708

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