Questions tagged [dsa]
39 questions
1
vote
3 answers
Is it safe if SSH and HTTPS server share the same RSA/DSA keys?
I'm configuring an ssh server for an embedded device. This device already has an x.509 certificate and a pair of public key and private keys stored in it that is used for its HTTPS server. Is it safe to just use same pair for the SSH server…
![](../../users/profiles/200706.webp)
Moe
- 21
- 3
1
vote
1 answer
TLS - DHE_DSS: How does client know public DSS-server key?
I wonder where the public server key g^x for DSS authentication is communicated to the client when a DHE_DSS cipher suite is used in TLS 1.2. Precisely:
A DSS certificate contains crypto parameters (p_1, q_1, g_1). These values are known to the…
![](../../users/profiles/163073.webp)
user120513
- 145
- 5
1
vote
0 answers
DSA/Digital Signature Algorithm, how is it applied in web applications? LAYMAN explanation please!
I understand how the digital signature algorithm works. However all the explanations and examples are only about Bob sending a message to Alice.
What i want to know is how digital signature is used in web applications;
Such as an ecommerce…
1
vote
1 answer
How do I sign a short text message with ~/.ssh/id_{dsa,ecdsa,ed25519}?
There are already a number of questions about reusing SSH keys for something else:
Converting keys between openssl and openssh
How to use public key in ~/.ssh for asymmetrical encryption with…
![](../../users/profiles/20566.webp)
Vi.
- 219
- 2
- 10
0
votes
1 answer
RSA vs DSA working methodolgy?
I have looked for various answers but I am being confused on how does RSA can be used for both Digital Signatures and Encryption/Decryption like in "TLS_DHE_RSA_..." or "TLS_RSA_.." cipher suite whereas DSA is only used like in "TLS_DHE_DSS_.." only…
![](../../users/profiles/71884.webp)
Harshit Bhatt
- 11
- 3
0
votes
1 answer
Does DSA need padding?
So I read on wikipedia that digital signatures need padding (like PSS) and I know this is true for RSA.
But now I ask myself does DSA also need padding?
![](../../users/profiles/12605.webp)
Raphael Ahrens
- 323
- 2
- 12
0
votes
1 answer
Generating a DER-encoded DSA public key of a particular file size
I am reverse engineering a binary that contains a raw, DER-encoded X.509 certificate containing a DSA public key. I want to replace this certificate with one that I have generated so that I have access to the private key.
Due to this certificate…
![](../../users/profiles/256518.webp)
senz
- 1
0
votes
1 answer
Website uses an unsupported protocol. ERR_SSL_VERSION_OR_CIPHER_MISMATCH
I just installed a new wildcard certificate on my Ubuntu server (there was a single certificate installed before). I modified /etc/apache2/sites-available/000-default.conf which is for one specific subdomain and updated the paths:
![](../../users/profiles/126435.webp)
enigma969
- 121
- 4
0
votes
0 answers
Generation of the primes p,q and g for DSA using an Hash Function in OpenSSL
We can generate primes p,q and g for DSA in OpenSSL by using command:
openssl dsaparam -text -out dsaparam.pem 1024
Is it possible to generate primes p , q and g using an Hash Function in OpenSSL if value of L , N and hash function is known ?
Any…
![](../../users/profiles/89711.webp)
user2363993
- 123
- 4