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Migrate SPKI parsing from OpenSSL to Rust
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| // This file is dual licensed under the terms of the Apache License, Version | ||
| // 2.0, and the BSD License. See the LICENSE file in the root of this repository | ||
| // for complete details. | ||
|
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| use std::env; | ||
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| fn main() { | ||
| if env::var("DEP_OPENSSL_LIBRESSL_VERSION_NUMBER").is_ok() { | ||
| println!("cargo:rustc-cfg=CRYPTOGRAPHY_IS_LIBRESSL"); | ||
| } | ||
|
|
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| if env::var("DEP_OPENSSL_BORINGSSL").is_ok() { | ||
| println!("cargo:rustc-cfg=CRYPTOGRAPHY_IS_BORINGSSL"); | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,132 @@ | ||
| // This file is dual licensed under the terms of the Apache License, Version | ||
| // 2.0, and the BSD License. See the LICENSE file in the root of this repository | ||
| // for complete details. | ||
|
|
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| use cryptography_x509::common::{AlgorithmParameters, EcParameters, SubjectPublicKeyInfo}; | ||
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| use crate::{KeyParsingError, KeyParsingResult}; | ||
|
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| pub fn parse_public_key( | ||
| data: &[u8], | ||
| ) -> KeyParsingResult<openssl::pkey::PKey<openssl::pkey::Public>> { | ||
| let k = asn1::parse_single::<SubjectPublicKeyInfo>(data)?; | ||
|
|
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| match k.algorithm.params { | ||
| AlgorithmParameters::Ec(ec_params) => match ec_params { | ||
| EcParameters::NamedCurve(curve_oid) => { | ||
| let curve_nid = match curve_oid { | ||
| cryptography_x509::oid::EC_SECP192R1 => openssl::nid::Nid::X9_62_PRIME192V1, | ||
| cryptography_x509::oid::EC_SECP224R1 => openssl::nid::Nid::SECP224R1, | ||
| cryptography_x509::oid::EC_SECP256R1 => openssl::nid::Nid::X9_62_PRIME256V1, | ||
| cryptography_x509::oid::EC_SECP384R1 => openssl::nid::Nid::SECP384R1, | ||
| cryptography_x509::oid::EC_SECP521R1 => openssl::nid::Nid::SECP521R1, | ||
|
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| cryptography_x509::oid::EC_SECP256K1 => openssl::nid::Nid::SECP256K1, | ||
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| cryptography_x509::oid::EC_SECT283R1 => openssl::nid::Nid::SECT283R1, | ||
| cryptography_x509::oid::EC_SECT409R1 => openssl::nid::Nid::SECT409R1, | ||
| cryptography_x509::oid::EC_SECT571R1 => openssl::nid::Nid::SECT571R1, | ||
|
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| cryptography_x509::oid::EC_SECT283K1 => openssl::nid::Nid::SECT283K1, | ||
| cryptography_x509::oid::EC_SECT409K1 => openssl::nid::Nid::SECT409K1, | ||
| cryptography_x509::oid::EC_SECT571K1 => openssl::nid::Nid::SECT571K1, | ||
|
|
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| #[cfg(not(any(CRYPTOGRAPHY_IS_LIBRESSL, CRYPTOGRAPHY_IS_BORINGSSL)))] | ||
| cryptography_x509::oid::EC_BRAINPOOLP256R1 => { | ||
| openssl::nid::Nid::BRAINPOOL_P256R1 | ||
| } | ||
| #[cfg(not(any(CRYPTOGRAPHY_IS_LIBRESSL, CRYPTOGRAPHY_IS_BORINGSSL)))] | ||
| cryptography_x509::oid::EC_BRAINPOOLP384R1 => { | ||
| openssl::nid::Nid::BRAINPOOL_P384R1 | ||
| } | ||
| #[cfg(not(any(CRYPTOGRAPHY_IS_LIBRESSL, CRYPTOGRAPHY_IS_BORINGSSL)))] | ||
| cryptography_x509::oid::EC_BRAINPOOLP512R1 => { | ||
| openssl::nid::Nid::BRAINPOOL_P512R1 | ||
| } | ||
|
|
||
| _ => return Err(KeyParsingError::UnsupportedEllipticCurve(curve_oid)), | ||
| }; | ||
|
|
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| let group = openssl::ec::EcGroup::from_curve_name(curve_nid) | ||
| .map_err(|_| KeyParsingError::UnsupportedKeyType(curve_oid))?; | ||
| let mut bn_ctx = openssl::bn::BigNumContext::new()?; | ||
| let ec_point = openssl::ec::EcPoint::from_bytes( | ||
| &group, | ||
| k.subject_public_key.as_bytes(), | ||
| &mut bn_ctx, | ||
| ) | ||
| .map_err(|_| KeyParsingError::InvalidKey)?; | ||
| let ec_key = openssl::ec::EcKey::from_public_key(&group, &ec_point)?; | ||
| Ok(openssl::pkey::PKey::from_ec_key(ec_key)?) | ||
| } | ||
| EcParameters::ImplicitCurve(_) | EcParameters::SpecifiedCurve(_) => { | ||
| Err(KeyParsingError::ExplicitCurveUnsupported) | ||
| } | ||
| }, | ||
| AlgorithmParameters::Ed25519 => Ok(openssl::pkey::PKey::public_key_from_raw_bytes( | ||
| k.subject_public_key.as_bytes(), | ||
| openssl::pkey::Id::ED25519, | ||
| )?), | ||
| #[cfg(all(not(CRYPTOGRAPHY_IS_LIBRESSL), not(CRYPTOGRAPHY_IS_BORINGSSL)))] | ||
| AlgorithmParameters::Ed448 => Ok(openssl::pkey::PKey::public_key_from_raw_bytes( | ||
| k.subject_public_key.as_bytes(), | ||
| openssl::pkey::Id::ED448, | ||
| )?), | ||
| AlgorithmParameters::X25519 => Ok(openssl::pkey::PKey::public_key_from_raw_bytes( | ||
| k.subject_public_key.as_bytes(), | ||
| openssl::pkey::Id::X25519, | ||
| )?), | ||
| #[cfg(all(not(CRYPTOGRAPHY_IS_LIBRESSL), not(CRYPTOGRAPHY_IS_BORINGSSL)))] | ||
| AlgorithmParameters::X448 => Ok(openssl::pkey::PKey::public_key_from_raw_bytes( | ||
| k.subject_public_key.as_bytes(), | ||
| openssl::pkey::Id::X448, | ||
| )?), | ||
| AlgorithmParameters::Rsa(_) | AlgorithmParameters::RsaPss(_) => { | ||
| // RSA-PSS keys are treated the same as bare RSA keys. | ||
| crate::rsa::parse_pkcs1_public_key(k.subject_public_key.as_bytes()) | ||
| } | ||
| AlgorithmParameters::Dsa(dsa_params) => { | ||
| let p = openssl::bn::BigNum::from_slice(dsa_params.p.as_bytes())?; | ||
| let q = openssl::bn::BigNum::from_slice(dsa_params.q.as_bytes())?; | ||
| let g = openssl::bn::BigNum::from_slice(dsa_params.g.as_bytes())?; | ||
|
|
||
| let pub_key_int = | ||
| asn1::parse_single::<asn1::BigUint<'_>>(k.subject_public_key.as_bytes())?; | ||
| let pub_key = openssl::bn::BigNum::from_slice(pub_key_int.as_bytes())?; | ||
|
|
||
| let dsa = openssl::dsa::Dsa::from_public_components(p, q, g, pub_key)?; | ||
| Ok(openssl::pkey::PKey::from_dsa(dsa)?) | ||
| } | ||
| #[cfg(not(CRYPTOGRAPHY_IS_BORINGSSL))] | ||
| AlgorithmParameters::Dh(dh_params) | AlgorithmParameters::DhKeyAgreement(dh_params) => { | ||
| let p = openssl::bn::BigNum::from_slice(dh_params.p.as_bytes())?; | ||
| let q = dh_params | ||
| .q | ||
| .as_ref() | ||
| .map(|v| openssl::bn::BigNum::from_slice(v.as_bytes())) | ||
| .transpose()?; | ||
| let g = openssl::bn::BigNum::from_slice(dh_params.g.as_bytes())?; | ||
| let dh = openssl::dh::Dh::from_pqg(p, q, g)?; | ||
|
|
||
| let pub_key_int = | ||
| asn1::parse_single::<asn1::BigUint<'_>>(k.subject_public_key.as_bytes())?; | ||
| let pub_key = openssl::bn::BigNum::from_slice(pub_key_int.as_bytes())?; | ||
| let dh = dh.set_public_key(pub_key)?; | ||
|
|
||
| cfg_if::cfg_if! { | ||
| if #[cfg(CRYPTOGRAPHY_IS_LIBRESSL)] { | ||
| Ok(openssl::pkey::PKey::from_dh(dh)?) | ||
| } else { | ||
| if dh_params.q.is_some() { | ||
| Ok(openssl::pkey::PKey::from_dhx(dh)?) | ||
| } else { | ||
| Ok(openssl::pkey::PKey::from_dh(dh)?) | ||
| } | ||
| } | ||
| } | ||
| } | ||
| _ => Err(KeyParsingError::UnsupportedKeyType( | ||
| k.algorithm.oid().clone(), | ||
| )), | ||
| } | ||
| } |
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