Awesome. :-) But would anybody familiar enough with the EVP interface be kind enough to provide the answers? I can't believe there's nobody like that on this list, and I've seen harder questions answered here with deceptive ease. :-)
Regards, Uri Sent from my iPhone > On Apr 28, 2017, at 18:59, Michael Wojcik <michael.woj...@microfocus.com> > wrote: > > Actually, I think Ryan Murray's email account may be compromised. We've seen > a number of odd messages from it over the past couple of days. > > Or he's running a DNN which has become self-aware and is spamming the list > with its incoherent thoughts. Soon it will enlist the OpenSSL mail reflector > in its uncompromising war on organic intelligence. We knew this would happen > eventually. > > (Of course it's only a mailing list, so really all it can do is wage > psychological warfare, sending us depressing messages to break our spirit. > Fortunately, as TLS users, we have built up a tremendous tolerance for > depressing messages.) > > Michael Wojcik > Distinguished Engineer, Micro Focus > > > > From: openssl-users [mailto:openssl-users-boun...@openssl.org] On Behalf Of > Blumenthal, Uri - 0553 - MITLL > Sent: Friday, April 28, 2017 16:46 > To: openssl-users@openssl.org > Subject: Re: [openssl-users] EVP_MD_CTX and EVP_PKEY_CTX? How to init? How > tofree? > > I see. I appreciate your willingness to help, but it would've been far better > if you answered those very specific and unambiguous questions that I > explicitly asked, instead of trying to guess/conjecture what the high level > purpose of that whole exercise was. > > As it happens, I've no interest and no need for (other) remote login or > virtualization solutions (which have nothing to do with the problem I'm > addressing), so I am unable to make use of your answer. > > Regards, > Uri > > Sent from my iPhone > > On Apr 28, 2017, at 18:37, Ryan Murray <rjkmurra...@gmail.com> wrote: > > > REMOTE LOGIN PROTOCOLS > A client/server model can create a mechanism that allows a user to establish > a session on the remote machine and then run its applications. This > application is known as remote login. This can be done by a client/server > application program for the desired service. Two remote login protocols are > TELNET and SSH. TELNET Protocol TELNET (terminal network) is a TCP/IP > standard for establishing a connection to a remote system. TELNET allows a > user to log in to a remote machine across the Internet by first making a TCP > connection and then pass the detail of the application > from the user to the remote machine.. You do this to many > > Sent from Mail for Windows 10 > > From: Blumenthal, Uri - 0553 - MITLL > Sent: Friday, April 28, 2017 4:33 PM > To: openssl-users@openssl.org > Subject: [openssl-users] EVP_MD_CTX and EVP_PKEY_CTX? How to init? How tofree? > > I’m playing with RSA-PSS signatures, and stumbled upon a few problems. I > tried the OpenSSL manual pages, but still coming short of complete > understanding. :-) > > This is how I initialize the contexts (error handlers removed for brevity): > > ctx = EVP_PKEY_CTX_new(privkey, NULL); > md_ctx = EVP_MD_CTX_create(); > const EVP_MD *md = EVP_sha256(); > rv = EVP_DigestInit_ex(md_ctx, md, NULL); > rv = EVP_DigestSignInit(md_ctx, &ctx, md, NULL, privkey); > > First question: do I need EVP_DigestInit_ex() there? > > Second question: do I have to specify hash-function (EVP_MD*) twice? First > when initializing EVP_MD_CTX, and second for EVP_DigestSignInit()? > > At the end I need to dispose of both ctx and md_ctx. That leads to my third > question/problem. The code I tried (based on what the man page says: to avoid > memory leak, I need to do EVP_MD_CTX_destroy(md_ctx) crashes with SIGV: > > EVP_MD_CTX_destroy(md_ctx); // this succeeds > EVP_PKEY_CTX_free(ctx); // but here the code crashes > > Same happens when I reverse the above order: > > EVP_PKEY_CTX_free(ctx); // this succeeds > EVP_MD_CTX_destroy(md_ctx); // but then this one causes crash > > So what’s the correct way of freeing both of them? Or is it that because > they’re sort of “bound together” by EVP_DigestSignInit(md_ctx, &ctx, md, > NULL, privkey); freeing one frees the other? > > Thanks! > — > Regards, > Uri > > > -- > openssl-users mailing list > To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users > -- > openssl-users mailing list > To unsubscribe: https://mta.openssl.org/mailman/listinfo/openssl-users
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