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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
use std::borrow::Cow;
use deno_core::JsBuffer;
use deno_core::ToJsBuffer;
use elliptic_curve::sec1::ToEncodedPoint;
use p256::pkcs8::DecodePrivateKey;
use rsa::pkcs1::DecodeRsaPrivateKey;
use rsa::pkcs1::EncodeRsaPublicKey;
use rsa::RsaPrivateKey;
use serde::Deserialize;
use serde::Serialize;
pub const RSA_ENCRYPTION_OID: const_oid::ObjectIdentifier =
const_oid::ObjectIdentifier::new_unwrap("1.2.840.113549.1.1.1");
pub const ID_SECP256R1_OID: const_oid::ObjectIdentifier =
const_oid::ObjectIdentifier::new_unwrap("1.2.840.10045.3.1.7");
pub const ID_SECP384R1_OID: const_oid::ObjectIdentifier =
const_oid::ObjectIdentifier::new_unwrap("1.3.132.0.34");
pub const ID_SECP521R1_OID: const_oid::ObjectIdentifier =
const_oid::ObjectIdentifier::new_unwrap("1.3.132.0.35");
#[derive(Serialize, Deserialize, Copy, Clone, Eq, PartialEq)]
pub enum ShaHash {
#[serde(rename = "SHA-1")]
Sha1,
#[serde(rename = "SHA-256")]
Sha256,
#[serde(rename = "SHA-384")]
Sha384,
#[serde(rename = "SHA-512")]
Sha512,
}
#[derive(Serialize, Deserialize, Copy, Clone, Eq, PartialEq)]
pub enum EcNamedCurve {
#[serde(rename = "P-256")]
P256,
#[serde(rename = "P-384")]
P384,
#[serde(rename = "P-521")]
P521,
}
#[derive(Deserialize)]
#[serde(rename_all = "lowercase", tag = "type", content = "data")]
pub enum V8RawKeyData {
Secret(JsBuffer),
Private(JsBuffer),
Public(JsBuffer),
}
#[derive(Serialize)]
#[serde(rename_all = "lowercase", tag = "type", content = "data")]
pub enum RustRawKeyData {
Secret(ToJsBuffer),
Private(ToJsBuffer),
Public(ToJsBuffer),
}
#[derive(Debug, thiserror::Error)]
pub enum SharedError {
#[error("expected valid private key")]
ExpectedValidPrivateKey,
#[error("expected valid public key")]
ExpectedValidPublicKey,
#[error("expected valid private EC key")]
ExpectedValidPrivateECKey,
#[error("expected valid public EC key")]
ExpectedValidPublicECKey,
#[error("expected private key")]
ExpectedPrivateKey,
#[error("expected public key")]
ExpectedPublicKey,
#[error("expected secret key")]
ExpectedSecretKey,
#[error("failed to decode private key")]
FailedDecodePrivateKey,
#[error("failed to decode public key")]
FailedDecodePublicKey,
#[error("unsupported format")]
UnsupportedFormat,
}
impl V8RawKeyData {
pub fn as_rsa_public_key(&self) -> Result<Cow<'_, [u8]>, SharedError> {
match self {
V8RawKeyData::Public(data) => Ok(Cow::Borrowed(data)),
V8RawKeyData::Private(data) => {
let private_key = RsaPrivateKey::from_pkcs1_der(data)
.map_err(|_| SharedError::ExpectedValidPrivateKey)?;
let public_key_doc = private_key
.to_public_key()
.to_pkcs1_der()
.map_err(|_| SharedError::ExpectedValidPublicKey)?;
Ok(Cow::Owned(public_key_doc.as_bytes().into()))
}
_ => Err(SharedError::ExpectedPublicKey),
}
}
pub fn as_rsa_private_key(&self) -> Result<&[u8], SharedError> {
match self {
V8RawKeyData::Private(data) => Ok(data),
_ => Err(SharedError::ExpectedPrivateKey),
}
}
pub fn as_secret_key(&self) -> Result<&[u8], SharedError> {
match self {
V8RawKeyData::Secret(data) => Ok(data),
_ => Err(SharedError::ExpectedSecretKey),
}
}
pub fn as_ec_public_key_p256(
&self,
) -> Result<p256::EncodedPoint, SharedError> {
match self {
V8RawKeyData::Public(data) => p256::PublicKey::from_sec1_bytes(data)
.map(|p| p.to_encoded_point(false))
.map_err(|_| SharedError::ExpectedValidPublicECKey),
V8RawKeyData::Private(data) => {
let signing_key = p256::SecretKey::from_pkcs8_der(data)
.map_err(|_| SharedError::ExpectedValidPrivateECKey)?;
Ok(signing_key.public_key().to_encoded_point(false))
}
// Should never reach here.
V8RawKeyData::Secret(_) => unreachable!(),
}
}
pub fn as_ec_public_key_p384(
&self,
) -> Result<p384::EncodedPoint, SharedError> {
match self {
V8RawKeyData::Public(data) => p384::PublicKey::from_sec1_bytes(data)
.map(|p| p.to_encoded_point(false))
.map_err(|_| SharedError::ExpectedValidPublicECKey),
V8RawKeyData::Private(data) => {
let signing_key = p384::SecretKey::from_pkcs8_der(data)
.map_err(|_| SharedError::ExpectedValidPrivateECKey)?;
Ok(signing_key.public_key().to_encoded_point(false))
}
// Should never reach here.
V8RawKeyData::Secret(_) => unreachable!(),
}
}
pub fn as_ec_public_key_p521(
&self,
) -> Result<p521::EncodedPoint, SharedError> {
match self {
V8RawKeyData::Public(data) => {
// public_key is a serialized EncodedPoint
p521::EncodedPoint::from_bytes(data)
.map_err(|_| SharedError::ExpectedValidPublicECKey)
}
V8RawKeyData::Private(data) => {
let signing_key = p521::SecretKey::from_pkcs8_der(data)
.map_err(|_| SharedError::ExpectedValidPrivateECKey)?;
Ok(signing_key.public_key().to_encoded_point(false))
}
// Should never reach here.
V8RawKeyData::Secret(_) => unreachable!(),
}
}
pub fn as_ec_private_key(&self) -> Result<&[u8], SharedError> {
match self {
V8RawKeyData::Private(data) => Ok(data),
_ => Err(SharedError::ExpectedPrivateKey),
}
}
}
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