1use std::str::FromStr;
2
3use rcgen::{CertificateParams, DistinguishedName, DnType, Ia5String, KeyPair, SanType};
4use rsa::{
5 RsaPrivateKey,
6 pkcs8::{EncodePrivateKey, LineEnding},
7 rand_core::UnwrapErr,
8};
9use time::{Date, Duration, Month, OffsetDateTime, PrimitiveDateTime, Time};
10
11mod ca;
12mod error;
13
14pub use ca::*;
15pub use error::*;
16
17#[derive(Debug, Clone, PartialEq, Eq, Hash)]
18pub struct ChiaCertificate {
19 pub cert_pem: String,
20 pub key_pem: String,
21}
22
23impl ChiaCertificate {
24 pub fn generate() -> Result<ChiaCertificate> {
25 let key = RsaPrivateKey::new(&mut UnwrapErr(getrandom::SysRng), 2048)?;
26 let key_pem = key.to_pkcs8_pem(LineEnding::default())?.to_string();
27
28 let mut params = CertificateParams::default();
29
30 let mut subject = DistinguishedName::new();
31 subject.push(DnType::CommonName, "Chia");
32 subject.push(DnType::OrganizationName, "Chia");
33 subject.push(DnType::OrganizationalUnitName, "Organic Farming Division");
34 params.distinguished_name = subject;
35
36 params.subject_alt_names = vec![SanType::DnsName(Ia5String::from_str("chia.net")?)];
37
38 params.not_before = OffsetDateTime::now_utc() - Duration::DAY;
39 params.not_after = PrimitiveDateTime::new(
40 Date::from_calendar_date(2100, Month::August, 2)?,
41 Time::MIDNIGHT,
42 )
43 .assume_utc();
44
45 let key_pair = KeyPair::from_pem_and_sign_algo(&key_pem, &rcgen::PKCS_RSA_SHA256)?;
46 let cert = params.signed_by(&key_pair, &CHIA_CA, &CHIA_CA_KEY_PAIR)?;
47 let cert_pem = cert.pem();
48
49 Ok(ChiaCertificate { cert_pem, key_pem })
50 }
51}