boring/
dh.rs

1use crate::error::ErrorStack;
2use crate::ffi;
3use foreign_types::{ForeignType, ForeignTypeRef};
4use openssl_macros::corresponds;
5use std::mem;
6use std::ptr;
7
8use crate::bn::BigNum;
9use crate::pkey::{HasParams, Params};
10use crate::{cvt, cvt_p};
11
12generic_foreign_type_and_impl_send_sync! {
13    type CType = ffi::DH;
14    fn drop = ffi::DH_free;
15
16    pub struct Dh<T>;
17
18    pub struct DhRef<T>;
19}
20
21impl<T> DhRef<T>
22where
23    T: HasParams,
24{
25    to_pem! {
26        /// Serializes the parameters into a PEM-encoded PKCS#3 DHparameter structure.
27        ///
28        /// The output will have a header of `-----BEGIN DH PARAMETERS-----`.
29        #[corresponds(PEM_write_bio_DHparams)]
30        params_to_pem,
31        ffi::PEM_write_bio_DHparams
32    }
33
34    to_der! {
35        /// Serializes the parameters into a DER-encoded PKCS#3 DHparameter structure.
36        #[corresponds(i2d_DHparams)]
37        params_to_der,
38        ffi::i2d_DHparams
39    }
40}
41
42impl Dh<Params> {
43    pub fn from_params(p: BigNum, g: BigNum, q: BigNum) -> Result<Dh<Params>, ErrorStack> {
44        unsafe {
45            let dh = Dh::from_ptr(cvt_p(ffi::DH_new())?);
46            cvt(DH_set0_pqg(dh.0, p.as_ptr(), q.as_ptr(), g.as_ptr()))?;
47            mem::forget((p, g, q));
48            Ok(dh)
49        }
50    }
51
52    from_pem! {
53        /// Deserializes a PEM-encoded PKCS#3 DHpararameters structure.
54        ///
55        /// The input should have a header of `-----BEGIN DH PARAMETERS-----`.
56        #[corresponds(PEM_read_bio_DHparams)]
57        params_from_pem,
58        Dh<Params>,
59        ffi::PEM_read_bio_DHparams
60    }
61
62    from_der! {
63        /// Deserializes a DER-encoded PKCS#3 DHparameters structure.
64        #[corresponds(d2i_DHparams)]
65        params_from_der,
66        Dh<Params>,
67        ffi::d2i_DHparams,
68        ::libc::c_long
69    }
70}
71
72use crate::ffi::DH_set0_pqg;
73
74#[cfg(test)]
75mod tests {
76    use crate::bn::BigNum;
77    use crate::dh::Dh;
78    use crate::ssl::{SslContext, SslMethod};
79
80    #[test]
81    fn test_dh() {
82        let mut ctx = SslContext::builder(SslMethod::tls()).unwrap();
83        let p = BigNum::from_hex_str(
84            "87A8E61DB4B6663CFFBBD19C651959998CEEF608660DD0F25D2CEED4435E3B00E00DF8F1D61957D4FAF7DF\
85             4561B2AA3016C3D91134096FAA3BF4296D830E9A7C209E0C6497517ABD5A8A9D306BCF67ED91F9E6725B47\
86             58C022E0B1EF4275BF7B6C5BFC11D45F9088B941F54EB1E59BB8BC39A0BF12307F5C4FDB70C581B23F76B6\
87             3ACAE1CAA6B7902D52526735488A0EF13C6D9A51BFA4AB3AD8347796524D8EF6A167B5A41825D967E144E5\
88             140564251CCACB83E6B486F6B3CA3F7971506026C0B857F689962856DED4010ABD0BE621C3A3960A54E710\
89             C375F26375D7014103A4B54330C198AF126116D2276E11715F693877FAD7EF09CADB094AE91E1A1597",
90        ).unwrap();
91        let g = BigNum::from_hex_str(
92            "3FB32C9B73134D0B2E77506660EDBD484CA7B18F21EF205407F4793A1A0BA12510DBC15077BE463FFF4FED\
93             4AAC0BB555BE3A6C1B0C6B47B1BC3773BF7E8C6F62901228F8C28CBB18A55AE31341000A650196F931C77A\
94             57F2DDF463E5E9EC144B777DE62AAAB8A8628AC376D282D6ED3864E67982428EBC831D14348F6F2F9193B5\
95             045AF2767164E1DFC967C1FB3F2E55A4BD1BFFE83B9C80D052B985D182EA0ADB2A3B7313D3FE14C8484B1E\
96             052588B9B7D2BBD2DF016199ECD06E1557CD0915B3353BBB64E0EC377FD028370DF92B52C7891428CDC67E\
97             B6184B523D1DB246C32F63078490F00EF8D647D148D47954515E2327CFEF98C582664B4C0F6CC41659",
98        ).unwrap();
99        let q = BigNum::from_hex_str(
100            "8CF83642A709A097B447997640129DA299B1A47D1EB3750BA308B0FE64F5FBD3",
101        )
102        .unwrap();
103        let dh = Dh::from_params(p, g, q).unwrap();
104        ctx.set_tmp_dh(&dh).unwrap();
105    }
106
107    #[test]
108    fn test_dh_from_pem() {
109        let mut ctx = SslContext::builder(SslMethod::tls()).unwrap();
110        let params = include_bytes!("../test/dhparams.pem");
111        let dh = Dh::params_from_pem(params).unwrap();
112        ctx.set_tmp_dh(&dh).unwrap();
113    }
114
115    #[test]
116    fn test_dh_from_der() {
117        let params = include_bytes!("../test/dhparams.pem");
118        let dh = Dh::params_from_pem(params).unwrap();
119        let der = dh.params_to_der().unwrap();
120        Dh::params_from_der(&der).unwrap();
121    }
122}
boring/dh.rs

boring/
dh.rs
