similar to: Silly question on DH key exch in ssh

Hi, Could anyone pls help by telling me how the DH pubkey from the server (f) is encoded when it is sent back to me? I understand that it comes across as an mpint, but after I decode the mpint into the bytes that make up the number, what does this number represent? Is it a X509 encoded key? Or is it something else? The reason for my question: I am trying to write a ssh client in Java,

Hello, all. Firstly, sorry for the cross-posting... Has anyone out there tried to use JCE (1.2.1, with JDK1.3.1) to create a Diffie Hellman key using the group1 prime modulus and base generator, and then pass on the public key to an OpenSSH (v3.1) server as a part of the diffie-hellman-group1-sha1 key exchange? For some reason, the ssh server rejects the key saying it is invalid ... I have

hello, I'm also developing a ssh application in java and I also got stuck with DH-Key Exchange. I just get to the SSH_MSG_KEXDH_REPLY from the server. But what is he expecting me to send then, as far as I understand the Transport Layer Protcol I should send the SSH_MSG_NEWKEYS message, but that doesn't work. Does anyone know what to send then? (the hint from Markus Friedl with kexdh.c

Am 02.11.2013 um 11:38 schrieb Aris Adamantiadis <aris at 0xbadc0de.be>: > RFC4251 describes mpint to be multi-size and with positive values having > MSB clear, so it's clearly incompatible with raw string. > > Since you both agreed on the curve25519 implementation to use, I'll work > today on Markus' patch to make the changes Damien wanted. What do you want to

hi, I have a draggable element (cart-item) in a shopping cart <%= draggable_element "item_#{product}_#{i}", :revert => true %> When this element is dragged outside the cart into the "main_div", I want to show a puff effect and remove the element. When it is dragged within the cart, it should revert. So i wrote this code for drop_receiving _element <%=

There is no hash algorithm associated with SSH keys. The key format for RSA keys is always ?ssh-rsa?, and it is capable of being used with any of the available signature algorithms (ssh-rsa for SHA-1 and rsa-sha2-256 or rsa-sha2-512 for SHA-2). See section 3 in https://www.rfc-editor.org/rfc/rfc8332: rsa-sha2-256 RECOMMENDED sign Raw RSA key rsa-sha2-512 OPTIONAL

https://bugzilla.mindrot.org/show_bug.cgi?id=2390 Bug ID: 2390 Summary: PROTOCOL.key mis-describes private section Product: Portable OpenSSH Version: 6.8p1 Hardware: All OS: All Status: NEW Severity: normal Priority: P5 Component: Documentation Assignee: unassigned-bugs at

e.g. can we make it throw warnings etc. rsa-sha2-256 and rsa-sha2-512 are fine, they use PSS. On Sun, Jan 20, 2019 at 1:55 AM Yegor Ievlev <koops1997 at gmail.com> wrote: > > Also can we do anything with ssh-rsa? It uses both SHA-1 and > deprecated PKCS#1 padding. If it's used to sign certificates, there's > no additional protection of SHA-2 hashing before SHA-1

HI ALL, it''s so frustuating to me from so many days--hosting ror app in apache on win os. i installed xampp and running ror apps using webrick server . but when comes to hosting that app into apache i can''t make it.i gone through the so many sites can anyone give me an assistance to solve this problem. thanks in advance regards, Manik. -- You received this message because you

It should be compatible with the original patch. However I think that the shared secret should be encoded as a string, too. What does libssh do? > Am 02.11.2013 um 05:46 schrieb Damien Miller <djm at mindrot.org>: > >> On Fri, 1 Nov 2013, Markus Friedl wrote: >> >> Here are three versions (patch against openbsd cvs) >> >> 1) repace nacl w/libsodium,

Hi, I sent this patch back inn april and I still have a need for this. Would it be possible to get any pointers how we can have `hashalg` selectable by `ssh-keygen -Y`? -- Morten Linderud PGP: 9C02FF419FECBE16 On Thu, Apr 11, 2024 at 09:16:39PM +0200, Morten Linderud wrote: > `ssh-keygen -Y sign` only selects the signing algorithm `rsa-sha2-512` > and this prevents ssh-agent

I am working on a port of Openssh 3.8p1 after already having done a port of Openssh 3.5p1. There are a couple of new lines in buffer_get_bignum2() that are causing me problems: if (len > 0 && (bin[0] & 0x80)) fatal("buffer_get_bignum2: negative numbers not supported"); The "& 0x80" check is not relevant in ebcdic. Does anyone

Dear all, For my thesis, I've been working on automatic inference of state machines for SSH servers. I ran into a couple of particularities regarding OpenSSH's inferred state machine, and was hoping some of you might be interested. Maybe you can even shed some light on it. Setup: I'm using LearnLib's (Java) version of the L* learning algorithm [1] to come up with sequences of

https://bugzilla.mindrot.org/show_bug.cgi?id=2302 --- Comment #13 from Darren Tucker <dtucker at zip.com.au> --- (In reply to Christoph Anton Mitterer from comment #10) [...] > Even though an attacker cannot (AFAIU??) for a connection to > downgrade to the weaker groups, The server's DH-GEX exchange hash includes the DH group sizes it received from the client. If these are

https://bugzilla.mindrot.org/show_bug.cgi?id=2302 --- Comment #4 from Damien Miller <djm at mindrot.org> --- Comment on attachment 2630 --> https://bugzilla.mindrot.org/attachment.cgi?id=2630 Make the DH-GEX fallback group 4k bit. Where did this group come from? IMO it would be best to use one of the standard groups if we're picking another fixed one - logjam attacks aren't

https://bugzilla.mindrot.org/show_bug.cgi?id=2303 Bug ID: 2303 Summary: ssh (and perhaps even sshd) should allow to specify the minimum DH group sizes for DH GEX Product: Portable OpenSSH Version: 6.7p1 Hardware: All OS: All Status: NEW Severity: security Priority: P5

https://bugzilla.mindrot.org/show_bug.cgi?id=2929 Bug ID: 2929 Summary: OpenSSH server should not send the SSH_MSG_EXT_INFO message after rekeying Product: Portable OpenSSH Version: 7.7p1 Hardware: Other OS: Linux Status: NEW Severity: enhancement Priority: P5

On Fri 2015-06-12 01:52:54 -0400, Mark D. Baushke wrote: > I have communicated with Allen Roginsky on this topic and I have been given permission to post his response. > > In this message below, the 'vendor' was Darren Tucker's generated prime > that used a generator value of 5. > > -- Mark > > From: "Roginsky, Allen" <allen.roginsky at

On Wed, May 27, 2015 at 05:08:25PM -0400, Daniel Kahn Gillmor wrote: > On Tue 2015-05-26 15:39:49 -0400, Mark D. Baushke wrote: > > Hi Folks, > > > > The generator value of 5 does not lead to a q-ordered subgroup which > > is needed to pass tests in > > > > http://csrc.nist.gov/publications/nistpubs/800-56A/SP800-56A_Revision1_Mar08-2007.pdf > > I

... is actually old & very well known by the maintainer! there is a bug report for exactly this that is 3 years and 124 days old! http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=165505 I can also add my report to this bug and mention that we need a fixed version for our xen packages, but as it looks for me (at the moment) the maintainer is not really interessted in getting this