Questions tagged [dsa]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0 votes
1 answer
535 views

DSA SSH key keeps regenerating

Our vulnerability scanner is flagging some Linux appliances for an SSH vulnerability for key size too small, DSS algorithm 1024 bits. This most likely relates to the DSA key as that only be 1024 bits. ...
user avatar
1 vote
0 answers
551 views

Openssl DSA Signature Verification Failure Error not understood

I am given a public key in PEM format: -----BEGIN PUBLIC KEY----- MIIDRjCCAjkGByqGSM44BAEwggIsAoIBAQCPPVSofEh+2wGLK/1UOEbx7R5YgCp5 JVrhglBS2QZxdiYnl9JCHVuFQC/vOxFeNmP9GUxv1vcQ7Jjr0J26sdUDFg+dP3ZD ...
abdul rahman taleb's user avatar
0 votes
1 answer
2k views

Openssh 7_9: key exchange failed, expected SSH_MSG_KEX_GEX_GROUP

I'm trying to connect from SmartCVS via ssh to a Fedora 29 system but connection fails with an error message "key exchange failed, expected SSH_MSG_KEX_GEX_GROUP". Since SmartCVS is somewhat ...
Elmi's user avatar
  • 199
0 votes
1 answer
607 views

Can't sign with DSA

A DSA key is created with: openssl genpkey -genparam -algorithm DSA -out dsaparams.pem -pkeyopt dsa_paramgen_bits:1024 openssl genpkey -paramfile dsaparams.pem -out dsakey.pem When I try to sign, ...
Kazh's user avatar
  • 3
0 votes
2 answers
15k views

Command line not letting me type password in PuTTY

A picture of the screen that I am stuck at: Operating System: Windows 7 Port: 27880 I have been setting up SSH in PuTTY to make my wiki family work, and I have experienced some problems typing the ...
Pyro Newman's user avatar
0 votes
1 answer
16k views

When trying to convert an SSH file, I got this error: Couldn't load private key (SSH-2 public key (OpenSSH format))

I have downloaded an SSH RSA key .pub file, and I have attempted it to convert it in the PuTTY Key Generator. However, I have had problems with converting it due to an error loading the key. The error ...
Pyro Newman's user avatar
0 votes
1 answer
558 views

gpg subkeys with different keylength

I have a GPG key with a keylength of DSA/1024. I can create new subkeys with a larger keysize, for example RSA/2048. According to Jens Erat this is an approach others currently do in practice. Is ...
radlan's user avatar
  • 103
21 votes
2 answers
53k views

Generate an ECDSA key and CSR with OpenSSL

I know how to generate an RSA Private Key and CSR: openssl genrsa -out my.key.pem 2048 openssl req -new -sha256 -key my.key.pem -out my.csr But, how do I do the same with an ECDSA (Elliptic Curve ...
Sreehari's user avatar
  • 325
7 votes
1 answer
14k views

Can I extract R and S from an ECDSA signature in bit form, and vica versa?

I have searched the forum and found related information, but not answer to this question. I am working in an extremely bandwidth-restricted environment, in need of creating as small ECDSA signatures ...
BenM's user avatar
  • 71
18 votes
2 answers
12k views

How does OpenSSH decide which host key to use?

By default, in my current version (6.9p1), OpenSSH Server will create four types of host keys: $ ls /etc/ssh/ssh_host_*_key.pub /etc/ssh/ssh_host_dsa_key.pub /etc/ssh/ssh_host_ecdsa_key.pub /etc/ssh/...
IQAndreas's user avatar
  • 3,947
12 votes
1 answer
8k views

How does one verify the PGP RSA and/or DSA checksum signatures for putty?

To verify the download integrity of putty, how is the best way to first verify the "SHA-512: (RSA sig) | (DSA sig)" PGP signature of these check-sum files for putty? (I am guessing "sig" means ...
Elliptical view's user avatar
0 votes
2 answers
7k views

Parameters to create a self-signed DSA certificate on Ubuntu 12.04?

I would like to create a self-signed DSA certificate on Ubuntu 12.04 for use with a webserver and TLS 1.2 (HTTPS) connection. I found that you can run the following command to create an RSA one: ...
user avatar
2 votes
0 answers
185 views

Information about a given DSA Key

Reading the answer https://superuser.com/a/13189/246855 to the question What is better for GPG keys - RSA or DSA?, I decided to examine the 2048 bit DSA key I use to figure out which secure hash ...
Samveen's user avatar
  • 320
0 votes
1 answer
334 views

Sharing windows 7 id_rsa and id_dsa key to another OS

On my windows 7 I have both id_dsa and id_rsa keys. I've decided that I want to switch to ubuntu 12.04 LTS to be exact. can I transfer my id_dsa and id_rsa keys and other git configurations to Ubuntu? ...
user962206's user avatar
49 votes
2 answers
36k views

Best encryption and signing algorithm for GnuPG: RSA/RSA or DSA/Elgamal? [closed]

I have found this relatively old question about whether RSA or DSA is the preferred algorithm for signing and encrypting with GnuPG. When using gpg --gen-key, the two relevant choices are either "RSA ...
The-Q's user avatar
  • 675