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2
votes
2answers
158 views

Was DSA invented from RSA?

I'm wondering if the two algorithms are similar and whether DSA was really just based off RSA? Is DSA based on RSA and public key encryption? If so how does DSA introduce signing and makes it ...
2
votes
1answer
201 views

Is the `ssh-agent`'s DSA signature deterministic?

In my hopes to use ssh-agent to generate a signature as password I implicitly assumed a deterministic signature. DSA is however supposed to take random value k for signing. However that randomness is ...
1
vote
2answers
216 views

why are the first few characters of a DSA Private Key similar?

I noticed most DSA private keys often start with the same few characters, MIIBvAIBAAKBgQD . For example, generate a private key on Ubuntu, by running: ssh-keygen -t dsa -N '' -f /tmp/id_dsa This ...
1
vote
2answers
227 views

Are RSA 2048, ECDSA, and the SHA uncrackable in the sense that AES-256 is uncrackable?

The answer http://security.stackexchange.com/a/25392 has seemingly shown that AES-256 will not be directly cracked for at least the next 200 years (unless we manage to harvest the energy output of ...
1
vote
1answer
100 views

Using secp256k1 and ECDSA with IKE

I just tried using an IKE daemon and EC certificates. I used the secp256k1 curve for key generation. The daemon claims signature scheme ECDSA-256 not supported by private key Now I am wondering ...
0
votes
2answers
600 views

Why are DSA keys referred to as DSS keys when used with SSH?

When I generate a DSA key with ssh-keygen -t dsa, the resulting public key will begin with ssh-dss. How come? Why not ssh-dsa?
0
votes
1answer
136 views

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 know i ask myself does DSA also need padding?
-1
votes
1answer
147 views

DSA Generates different signatures with the same data [closed]

I'm using the example given in msdn article about the DSACryptoServiceProvider Class. The problem is that I get a different signature each time I run the code. I tried OpenSSL and didn't get this ...