use crate::error::ErrorStack;
use crate::ffi;
use foreign_types::{ForeignType, ForeignTypeRef};
use std::mem;
use std::ptr;
use crate::bn::BigNum;
use crate::pkey::{HasParams, Params};
use crate::{cvt, cvt_p};
generic_foreign_type_and_impl_send_sync! {
type CType = ffi::DH;
fn drop = ffi::DH_free;
pub struct Dh<T>;
pub struct DhRef<T>;
}
impl<T> DhRef<T>
where
T: HasParams,
{
to_pem! {
params_to_pem,
ffi::PEM_write_bio_DHparams
}
to_der! {
params_to_der,
ffi::i2d_DHparams
}
}
impl Dh<Params> {
pub fn from_params(p: BigNum, g: BigNum, q: BigNum) -> Result<Dh<Params>, ErrorStack> {
unsafe {
let dh = Dh::from_ptr(cvt_p(ffi::DH_new())?);
cvt(DH_set0_pqg(dh.0, p.as_ptr(), q.as_ptr(), g.as_ptr()))?;
mem::forget((p, g, q));
Ok(dh)
}
}
from_pem! {
params_from_pem,
Dh<Params>,
ffi::PEM_read_bio_DHparams
}
from_der! {
params_from_der,
Dh<Params>,
ffi::d2i_DHparams,
::libc::c_long
}
}
use crate::ffi::DH_set0_pqg;
#[cfg(test)]
mod tests {
use crate::bn::BigNum;
use crate::dh::Dh;
use crate::ssl::{SslContext, SslMethod};
#[test]
fn test_dh() {
let mut ctx = SslContext::builder(SslMethod::tls()).unwrap();
let p = BigNum::from_hex_str(
"87A8E61DB4B6663CFFBBD19C651959998CEEF608660DD0F25D2CEED4435E3B00E00DF8F1D61957D4FAF7DF\
4561B2AA3016C3D91134096FAA3BF4296D830E9A7C209E0C6497517ABD5A8A9D306BCF67ED91F9E6725B47\
58C022E0B1EF4275BF7B6C5BFC11D45F9088B941F54EB1E59BB8BC39A0BF12307F5C4FDB70C581B23F76B6\
3ACAE1CAA6B7902D52526735488A0EF13C6D9A51BFA4AB3AD8347796524D8EF6A167B5A41825D967E144E5\
140564251CCACB83E6B486F6B3CA3F7971506026C0B857F689962856DED4010ABD0BE621C3A3960A54E710\
C375F26375D7014103A4B54330C198AF126116D2276E11715F693877FAD7EF09CADB094AE91E1A1597",
).unwrap();
let g = BigNum::from_hex_str(
"3FB32C9B73134D0B2E77506660EDBD484CA7B18F21EF205407F4793A1A0BA12510DBC15077BE463FFF4FED\
4AAC0BB555BE3A6C1B0C6B47B1BC3773BF7E8C6F62901228F8C28CBB18A55AE31341000A650196F931C77A\
57F2DDF463E5E9EC144B777DE62AAAB8A8628AC376D282D6ED3864E67982428EBC831D14348F6F2F9193B5\
045AF2767164E1DFC967C1FB3F2E55A4BD1BFFE83B9C80D052B985D182EA0ADB2A3B7313D3FE14C8484B1E\
052588B9B7D2BBD2DF016199ECD06E1557CD0915B3353BBB64E0EC377FD028370DF92B52C7891428CDC67E\
B6184B523D1DB246C32F63078490F00EF8D647D148D47954515E2327CFEF98C582664B4C0F6CC41659",
).unwrap();
let q = BigNum::from_hex_str(
"8CF83642A709A097B447997640129DA299B1A47D1EB3750BA308B0FE64F5FBD3",
)
.unwrap();
let dh = Dh::from_params(p, g, q).unwrap();
ctx.set_tmp_dh(&dh).unwrap();
}
#[test]
fn test_dh_from_pem() {
let mut ctx = SslContext::builder(SslMethod::tls()).unwrap();
let params = include_bytes!("../test/dhparams.pem");
let dh = Dh::params_from_pem(params).unwrap();
ctx.set_tmp_dh(&dh).unwrap();
}
#[test]
fn test_dh_from_der() {
let params = include_bytes!("../test/dhparams.pem");
let dh = Dh::params_from_pem(params).unwrap();
let der = dh.params_to_der().unwrap();
Dh::params_from_der(&der).unwrap();
}
}