Allows recognizing when a stream is still in handshake mode and can gracefully
transition when ready. The blocking usage of the API should still be the same,
just helps nonblocking implementations!
1DES is well and truly dead for actual sensitive information, (its
keysize is too small for modern purposes), but it can still find use in
backwards compatiblity or educational applications.
`EVP_PKEY_get1_RSA` returns a RSA structure with its reference count
increased by 1 and therefore we need to call `RSA_free` after finishing
using that value.
SSL_CTX_use_certificate_chain_file() is preferred over
SSL_CTX_use_certificate_file().
It allows the use of complete certificate chains instead of loading
only the first certificate in a PEM file.
LibreSSL has deprecated SSLv3_method, so this commit makes that a compile-time
feature.
It also removes a test referencing SSL_OP_CISCO_ANYCONNECT, as the LibreSSL
header says it is amongst "Obsolete flags kept for compatibility. No sane code
should use them."
The current behavior causes a server written using rust-openssl to (if
it cannot negotiate a protocol) fallback to the first protocol it has
avaliable.
This makes it impossible to detect protocol mismatches.
This updates our selection to be more similar to how openssl's
s_server behaves: non-matching protocols are not supplied with a
fallback.
Note that some setups may actually want a fallback protocol supplied
via ALPN. To support those cases, we should consider adding a generic
callback that allows protocol selection to be entirely controlled by
the programmer.
For the purposes of having a sane default, however, not supplying a
default (and mimicing s_server's behavior) is the best choice.
GNU linkers will sometimes aggressively try to strip objects and archives from a
linker command line in a left-to-right fashion. When a linker hits an object
file that doesn't satisfy any unresolved symbols, it will discard the object and
not re-visit it. This means that currently if symbols are depended upon in
libssl then some of the dependencies of libssl (in libcrypto) may have already
been stripped, causing a link error.
By swapping the order of what's linked it reflects the natural flow of
dependencies and the linker should figure everything out for us.
rust-openssl didn't support forward secrecy at all.
This adds support for DHE, by exposing set_tmp_dh() as well as the RFC5114
parameters, which are conveniently exposed since OpenSSL 1.0.2.
With OpenSSL >= 1.0.2, and the rfc5114 feature gate, enabling DHE is as simple
as (here for 2048-bit MODP group with 256-bit prime order subgroup):
use openssl::dh::DH;
let dh = DH::get_2048_256().unwrap();
ctx.set_tmp_dh(dh).unwrap();
With OpenSSL < 1.0.2, DH::from_params() can be used to manually specify the
DH parameters (here for 2048-bit MODP group with 256-bit prime order subgroup):
use openssl::bn::BigNum;
use openssl::dh::DH;
let p = BigNum::from_hex_str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unwrap();
let g = BigNum::from_hex_str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unwrap();
let q = BigNum::from_hex_str("8CF83642A709A097B447997640129DA299B1A47D1EB3750BA308B0FE64F5FBD3").unwrap();
let dh = DH::from_params(p, g, q).unwrap();
ctx.set_tmp_dh(dh).unwrap();
Steven Fackler