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Questions tagged [sha-2]

15 questions
39
votes
1 answer

How to check SSH key version locally

In general i'm searching for a method to show information about a private or public SSH key without contacting a server, like keylength, algorithm, ssh version and so on. Especially I like to know if some key is a sha1 or sha2.
gogan
  • 493
8
votes
1 answer

Is the ".sha256" file format formally defined somewhere? How should it be parsed?

I see a bunch of FOSS projects which have ".sha256" files. They look something like this: dsdfdfdsffdfsdfdsfdsfdsfdsfdsfds23r2ewrefdefdsfdsgfdsgffgfkgdfgg *meow.exe Asdfdfdsffdfsdfdsfdsfdsfdsfdsfds23r2ewrefdefdsfdsgfdsgffgfkgdfg3 …
Iago B.
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7
votes
0 answers

GPU accelerated SHA256 calculation under Linux or Windows?

I am curious whether or not there is a way to calculate the SHA256 sum of some file faster than the CPU does on GPU. Note that I am NOT interested in cracking anything. I don't care about password attacks or any other kind of attacks. All I wanna…
Paxsali
  • 313
5
votes
3 answers

Calculating sha256sum of a dvd

I have a burnt dvd from an iso image. I have also sha256sum of the iso image. to compare hashes, I created an iso image from the dvd and executed sha256sum image.iso, but it differs from the hash of original image. Is this a correct way to calculate…
hpn
  • 115
5
votes
1 answer

Why do .sha256 hash files include asterisk before and after filenames?

I've seen .sha256 files for software such as: this_is_a_fake_sha256_hash_of_64_characters file_name.exe Or: this_is_a_fake_sha256_hash_of_64_characters *file_name.exe Or: this_is_a_fake_sha256_hash_of_64_characters file_name.exe* I know that…
G. Luchini
  • 51
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3
votes
3 answers

SHA2 support for windows XP SP2 : any hotfix or dll available?

SSL with SHA2 does not work in windows XP SP2 and below.Th websites does not open if it has SSL with sha2. It requires SP3 and above. So is there any hotfix or files other than completely installing SP3 which will solve the problem?
IT researcher
  • 833
3
votes
1 answer

SHA-2 Code Signing questions

First and foremost, this is my very first experience with Code Signing. I bought Standard Code Signing from Certum for 3 years. It is SHA-2 based: Secured by the SHA-2 function They are all normal Windows Executables; for end users, both portable…
Vlastimil Burián
  • 4,376
2
votes
1 answer

How to create SHA2 on Oracle DB

How can I create a SHA2 certificate using Oracle Wallet if I have only Oracle 11.1 database? I already tried and read a lot about SHA-2 under Oracle 11.1 db version but it´s not possible according to Oracle documentation.
Ricardo Gómez
  • 21
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2
votes
2 answers

How to generate a SHA-256 hash in base64 format from commandline?

How do I generate a SHA-256 hash in base64 format from commandline? I want a piped commands kind of solution.
Michael Fayad
  • 151
0
votes
1 answer

After Updating to SHA2, private and public doesn't match

I've upgraded to SHA2 certificate, but after upgrading the new certificate key doesn't match my old private key. Public key has changed after updating and it doesn't match to previous private key. Is it usual that after upgrading to SHA2, the…
Sumit Murari
  • 171
0
votes
2 answers

What I must do to add SHA-2 MAC TLS ciphers to Firefox?

I tested the latest Firefox beta using https://cc.dcsec.uni-hannover.de/ and all ciphers supported by Firefox 25 use MAC SHA1; none of them allow SHA-2. Can this be changed? Do Mozilla have plans to use SHA-2 in the future? Besides, when I try to…
user193540
0
votes
0 answers

Windows 2003 (actually XP x64) can't read SSL signature if it's SHA-2 (SHA 256/384/512)

I have a Windows XP Professional x64 virtual machine to run some HLDS processes. I chose the x64 edition as I already have a license for it, and as it uses the Windows Server 2003 kernel it'll be more reliable (and up longer) than Windows XP…
Adambean
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0
votes
1 answer

Calculate KDF (just like a hash digest) such as PBKDF2 on command line? using openssl or otherwise

OpenSSL can be used to calculate a hash of a file or given input from the shell, like this: echo -n "abc" | openssl dgst -sha256 or openssl dgst -sha256 myfile.txt Can I also calculate a KDF value, e.g. PBKDF2 or bcrypt or scrypt or Argon2 in a…
RocketNuts
  • 1,342
0
votes
1 answer

SSH-256/512 RSA taking "long" to login

Up to now, I have been using putty + pageant 0.66 to ssh from my Win 10 client to a couple of Linux servers, as in Comp A Comp B Comp C Win 10, Msys2 -----------> Ubuntu 18.04 -----------> RHEL6 …
sancho.s ReinstateMonicaCellio
  • 5,897
0
votes
1 answer

Looking for HotFix to allow Windows Server 2003 to connect via SHA256 SSL

This is a long shot. I am looking for a hotfix that allows Windows Server 2003 to connect to websites using SHA256 (SHA2) SSL. I found several articles that reference it, but they all point to this page which gets a 404 error: KB968730 I searched…
Neil Weicher
  • 137