Re: Real MTU problems with BIO pair

2020-08-21 Thread Detlef Vollmann
On 2020-08-21 19:48, Benjamin Kaduk wrote: On Fri, Aug 21, 2020 at 05:05:51PM +0200, Detlef Vollmann wrote: On 2020-08-20 21:44, Detlef Vollmann wrote: Is there any way to set the maximum fragment size for DTLS handshake with a BIO pair? One solution is to set the MTU and the int_bio size to

Re: Checking if a key can sign / verify in 3.0

2020-08-21 Thread Norm Green
No comments on my question? Should there not be a way to know if an EVP_PKEY is valid for verification besides attempting the verify operation and getting a weird error code?  Doesn't seem like too much to expect since we already have EVP_PKEY_can_sign(). I'm happy to implement EVP_PKEY_can_veri

Re: Real MTU problems with BIO pair

2020-08-21 Thread Benjamin Kaduk via openssl-users
On Fri, Aug 21, 2020 at 05:05:51PM +0200, Detlef Vollmann wrote: > On 2020-08-20 21:44, Detlef Vollmann wrote: > > > > Is there any way to set the maximum fragment size for > > DTLS handshake with a BIO pair? > One solution is to set the MTU and the int_bio size to > exactly the same value. > Anot

Re: Real MTU problems with BIO pair

2020-08-21 Thread Detlef Vollmann
On 2020-08-20 21:44, Detlef Vollmann wrote: if I create a BIO pair with   BIO_new_bio_pair(&int_bio, 0, &ext_bio_, 0); then I tried to use SSL_set_mtu(), DTLS_set_link_mtu() and SSL_CTX_set_max_send_fragment(ctx, 1000). None of them gave me an error, but also none of them worked: the ServerHell

Re: query on dns resolver

2020-08-21 Thread Viktor Dukhovni
On Thu, Aug 20, 2020 at 11:56:45PM +0200, David von Oheimb wrote: > OpenSSL has one function, namely BIO_lookup_ex(), that uses DNS lookup > functions. Since commit 28a0841bf58e3813b2e07ad22f19484308e2f70a of > 02 Feb 2016 it uses getaddrinfo(). Right, but even this is not "DNS lookup". It is h