Questions tagged [dsa]

39 questions
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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…
Moe
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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…
user120513
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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…
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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…
Vi.
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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…
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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?
Raphael Ahrens
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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…
senz
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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:
enigma969
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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…
user2363993
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