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940 lines
27 KiB
Rust
940 lines
27 KiB
Rust
// Copyright 2018-2021 the Deno authors. All rights reserved. MIT license.
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use deno_core::error::custom_error;
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use deno_core::error::not_supported;
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use deno_core::error::type_error;
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use deno_core::error::AnyError;
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use deno_core::include_js_files;
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use deno_core::op_async;
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use deno_core::op_sync;
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use deno_core::Extension;
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use deno_core::OpState;
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use deno_core::ZeroCopyBuf;
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use serde::Deserialize;
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use std::cell::RefCell;
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use std::num::NonZeroU32;
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use std::rc::Rc;
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use block_modes::BlockMode;
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use p256::elliptic_curve::sec1::FromEncodedPoint;
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use p256::pkcs8::FromPrivateKey;
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use rand::rngs::OsRng;
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use rand::rngs::StdRng;
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use rand::thread_rng;
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use rand::Rng;
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use rand::SeedableRng;
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use ring::digest;
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use ring::hkdf;
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use ring::hmac::Algorithm as HmacAlgorithm;
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use ring::hmac::Key as HmacKey;
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use ring::pbkdf2;
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use ring::rand as RingRand;
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use ring::signature::EcdsaKeyPair;
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use ring::signature::EcdsaSigningAlgorithm;
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use ring::signature::EcdsaVerificationAlgorithm;
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use ring::signature::KeyPair;
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use rsa::padding::PaddingScheme;
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use rsa::pkcs1::der::Decodable;
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use rsa::pkcs1::der::Encodable;
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use rsa::pkcs1::FromRsaPrivateKey;
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use rsa::pkcs1::FromRsaPublicKey;
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use rsa::pkcs8::der::asn1;
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use rsa::PublicKey;
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use rsa::RsaPrivateKey;
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use rsa::RsaPublicKey;
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use sha1::Sha1;
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use sha2::Digest;
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use sha2::Sha256;
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use sha2::Sha384;
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use sha2::Sha512;
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use std::path::PathBuf;
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pub use rand; // Re-export rand
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mod encrypt;
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mod export_key;
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mod generate_key;
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mod import_key;
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mod key;
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mod shared;
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pub use crate::encrypt::op_crypto_encrypt;
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pub use crate::export_key::op_crypto_export_key;
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pub use crate::generate_key::op_crypto_generate_key;
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pub use crate::import_key::op_crypto_import_key;
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use crate::key::Algorithm;
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use crate::key::CryptoHash;
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use crate::key::CryptoNamedCurve;
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use crate::key::HkdfOutput;
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use crate::shared::ID_MFG1;
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use crate::shared::ID_P_SPECIFIED;
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use crate::shared::ID_SHA1_OID;
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use once_cell::sync::Lazy;
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pub fn init(maybe_seed: Option<u64>) -> Extension {
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Extension::builder()
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.js(include_js_files!(
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prefix "deno:ext/crypto",
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"00_crypto.js",
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"01_webidl.js",
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))
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.ops(vec![
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(
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"op_crypto_get_random_values",
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op_sync(op_crypto_get_random_values),
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),
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("op_crypto_generate_key", op_async(op_crypto_generate_key)),
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("op_crypto_sign_key", op_async(op_crypto_sign_key)),
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("op_crypto_verify_key", op_async(op_crypto_verify_key)),
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("op_crypto_derive_bits", op_async(op_crypto_derive_bits)),
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("op_crypto_import_key", op_sync(op_crypto_import_key)),
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("op_crypto_export_key", op_sync(op_crypto_export_key)),
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("op_crypto_encrypt", op_async(op_crypto_encrypt)),
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("op_crypto_decrypt_key", op_async(op_crypto_decrypt_key)),
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("op_crypto_subtle_digest", op_async(op_crypto_subtle_digest)),
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("op_crypto_random_uuid", op_sync(op_crypto_random_uuid)),
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])
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.state(move |state| {
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if let Some(seed) = maybe_seed {
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state.put(StdRng::seed_from_u64(seed));
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}
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Ok(())
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})
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.build()
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}
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pub fn op_crypto_get_random_values(
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state: &mut OpState,
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mut zero_copy: ZeroCopyBuf,
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_: (),
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) -> Result<(), AnyError> {
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if zero_copy.len() > 65536 {
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return Err(
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deno_web::DomExceptionQuotaExceededError::new(&format!("The ArrayBufferView's byte length ({}) exceeds the number of bytes of entropy available via this API (65536)", zero_copy.len()))
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.into(),
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);
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}
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let maybe_seeded_rng = state.try_borrow_mut::<StdRng>();
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if let Some(seeded_rng) = maybe_seeded_rng {
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seeded_rng.fill(&mut *zero_copy);
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} else {
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let mut rng = thread_rng();
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rng.fill(&mut *zero_copy);
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}
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Ok(())
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}
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#[derive(Deserialize)]
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#[serde(rename_all = "lowercase")]
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pub enum KeyFormat {
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Raw,
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Pkcs8,
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Spki,
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}
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#[derive(Deserialize)]
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#[serde(rename_all = "lowercase")]
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pub enum KeyType {
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Secret,
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Private,
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Public,
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}
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#[derive(Deserialize)]
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#[serde(rename_all = "lowercase")]
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pub struct KeyData {
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r#type: KeyType,
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data: ZeroCopyBuf,
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}
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#[derive(Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct SignArg {
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key: KeyData,
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algorithm: Algorithm,
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salt_length: Option<u32>,
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hash: Option<CryptoHash>,
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named_curve: Option<CryptoNamedCurve>,
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}
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pub async fn op_crypto_sign_key(
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_state: Rc<RefCell<OpState>>,
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args: SignArg,
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zero_copy: ZeroCopyBuf,
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) -> Result<ZeroCopyBuf, AnyError> {
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let data = &*zero_copy;
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let algorithm = args.algorithm;
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let signature = match algorithm {
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Algorithm::RsassaPkcs1v15 => {
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let private_key = RsaPrivateKey::from_pkcs1_der(&*args.key.data)?;
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let (padding, hashed) = match args
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.hash
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.ok_or_else(|| type_error("Missing argument hash".to_string()))?
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{
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CryptoHash::Sha1 => {
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let mut hasher = Sha1::new();
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hasher.update(&data);
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(
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PaddingScheme::PKCS1v15Sign {
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hash: Some(rsa::hash::Hash::SHA1),
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},
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hasher.finalize()[..].to_vec(),
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)
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}
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CryptoHash::Sha256 => {
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let mut hasher = Sha256::new();
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hasher.update(&data);
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(
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PaddingScheme::PKCS1v15Sign {
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hash: Some(rsa::hash::Hash::SHA2_256),
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},
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hasher.finalize()[..].to_vec(),
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)
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}
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CryptoHash::Sha384 => {
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let mut hasher = Sha384::new();
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hasher.update(&data);
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(
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PaddingScheme::PKCS1v15Sign {
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hash: Some(rsa::hash::Hash::SHA2_384),
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},
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hasher.finalize()[..].to_vec(),
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)
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}
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CryptoHash::Sha512 => {
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let mut hasher = Sha512::new();
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hasher.update(&data);
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(
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PaddingScheme::PKCS1v15Sign {
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hash: Some(rsa::hash::Hash::SHA2_512),
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},
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hasher.finalize()[..].to_vec(),
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)
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}
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};
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private_key.sign(padding, &hashed)?
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}
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Algorithm::RsaPss => {
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let private_key = RsaPrivateKey::from_pkcs1_der(&*args.key.data)?;
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let salt_len = args
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.salt_length
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.ok_or_else(|| type_error("Missing argument saltLength".to_string()))?
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as usize;
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let rng = OsRng;
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let (padding, digest_in) = match args
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.hash
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.ok_or_else(|| type_error("Missing argument hash".to_string()))?
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{
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CryptoHash::Sha1 => {
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let mut hasher = Sha1::new();
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hasher.update(&data);
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(
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PaddingScheme::new_pss_with_salt::<Sha1, _>(rng, salt_len),
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hasher.finalize()[..].to_vec(),
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)
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}
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CryptoHash::Sha256 => {
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let mut hasher = Sha256::new();
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hasher.update(&data);
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(
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PaddingScheme::new_pss_with_salt::<Sha256, _>(rng, salt_len),
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hasher.finalize()[..].to_vec(),
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)
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}
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CryptoHash::Sha384 => {
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let mut hasher = Sha384::new();
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hasher.update(&data);
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(
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PaddingScheme::new_pss_with_salt::<Sha384, _>(rng, salt_len),
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hasher.finalize()[..].to_vec(),
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)
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}
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CryptoHash::Sha512 => {
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let mut hasher = Sha512::new();
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hasher.update(&data);
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(
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PaddingScheme::new_pss_with_salt::<Sha512, _>(rng, salt_len),
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hasher.finalize()[..].to_vec(),
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)
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}
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};
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// Sign data based on computed padding and return buffer
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private_key.sign(padding, &digest_in)?
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}
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Algorithm::Ecdsa => {
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let curve: &EcdsaSigningAlgorithm =
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args.named_curve.ok_or_else(not_supported)?.try_into()?;
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let key_pair = EcdsaKeyPair::from_pkcs8(curve, &*args.key.data)?;
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// We only support P256-SHA256 & P384-SHA384. These are recommended signature pairs.
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// https://briansmith.org/rustdoc/ring/signature/index.html#statics
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if let Some(hash) = args.hash {
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match hash {
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CryptoHash::Sha256 | CryptoHash::Sha384 => (),
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_ => return Err(type_error("Unsupported algorithm")),
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}
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};
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let rng = RingRand::SystemRandom::new();
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let signature = key_pair.sign(&rng, data)?;
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// Signature data as buffer.
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signature.as_ref().to_vec()
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}
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Algorithm::Hmac => {
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let hash: HmacAlgorithm = args.hash.ok_or_else(not_supported)?.into();
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let key = HmacKey::new(hash, &*args.key.data);
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let signature = ring::hmac::sign(&key, data);
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signature.as_ref().to_vec()
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}
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_ => return Err(type_error("Unsupported algorithm".to_string())),
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};
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Ok(signature.into())
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}
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#[derive(Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct VerifyArg {
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key: KeyData,
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algorithm: Algorithm,
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salt_length: Option<u32>,
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hash: Option<CryptoHash>,
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signature: ZeroCopyBuf,
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named_curve: Option<CryptoNamedCurve>,
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}
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pub async fn op_crypto_verify_key(
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_state: Rc<RefCell<OpState>>,
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args: VerifyArg,
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zero_copy: ZeroCopyBuf,
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) -> Result<bool, AnyError> {
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let data = &*zero_copy;
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let algorithm = args.algorithm;
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let verification = match algorithm {
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Algorithm::RsassaPkcs1v15 => {
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let public_key = read_rsa_public_key(args.key)?;
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let (padding, hashed) = match args
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.hash
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.ok_or_else(|| type_error("Missing argument hash".to_string()))?
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{
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CryptoHash::Sha1 => {
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let mut hasher = Sha1::new();
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hasher.update(&data);
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(
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PaddingScheme::PKCS1v15Sign {
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hash: Some(rsa::hash::Hash::SHA1),
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},
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hasher.finalize()[..].to_vec(),
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)
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}
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CryptoHash::Sha256 => {
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let mut hasher = Sha256::new();
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hasher.update(&data);
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(
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PaddingScheme::PKCS1v15Sign {
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hash: Some(rsa::hash::Hash::SHA2_256),
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},
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hasher.finalize()[..].to_vec(),
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)
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}
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CryptoHash::Sha384 => {
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let mut hasher = Sha384::new();
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hasher.update(&data);
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(
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PaddingScheme::PKCS1v15Sign {
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hash: Some(rsa::hash::Hash::SHA2_384),
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},
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hasher.finalize()[..].to_vec(),
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)
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}
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CryptoHash::Sha512 => {
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let mut hasher = Sha512::new();
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hasher.update(&data);
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(
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PaddingScheme::PKCS1v15Sign {
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hash: Some(rsa::hash::Hash::SHA2_512),
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},
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hasher.finalize()[..].to_vec(),
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)
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}
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};
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public_key
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.verify(padding, &hashed, &*args.signature)
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.is_ok()
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}
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Algorithm::RsaPss => {
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let salt_len = args
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.salt_length
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.ok_or_else(|| type_error("Missing argument saltLength".to_string()))?
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as usize;
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let public_key = read_rsa_public_key(args.key)?;
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let rng = OsRng;
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let (padding, hashed) = match args
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.hash
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.ok_or_else(|| type_error("Missing argument hash".to_string()))?
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{
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CryptoHash::Sha1 => {
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let mut hasher = Sha1::new();
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hasher.update(&data);
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(
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PaddingScheme::new_pss_with_salt::<Sha1, _>(rng, salt_len),
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hasher.finalize()[..].to_vec(),
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)
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}
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CryptoHash::Sha256 => {
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let mut hasher = Sha256::new();
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hasher.update(&data);
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(
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PaddingScheme::new_pss_with_salt::<Sha256, _>(rng, salt_len),
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hasher.finalize()[..].to_vec(),
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)
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}
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CryptoHash::Sha384 => {
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let mut hasher = Sha384::new();
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hasher.update(&data);
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(
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PaddingScheme::new_pss_with_salt::<Sha384, _>(rng, salt_len),
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hasher.finalize()[..].to_vec(),
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)
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}
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CryptoHash::Sha512 => {
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let mut hasher = Sha512::new();
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hasher.update(&data);
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(
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PaddingScheme::new_pss_with_salt::<Sha512, _>(rng, salt_len),
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hasher.finalize()[..].to_vec(),
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)
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}
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};
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public_key
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.verify(padding, &hashed, &*args.signature)
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.is_ok()
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}
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Algorithm::Hmac => {
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let hash: HmacAlgorithm = args.hash.ok_or_else(not_supported)?.into();
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let key = HmacKey::new(hash, &*args.key.data);
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ring::hmac::verify(&key, data, &*args.signature).is_ok()
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}
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Algorithm::Ecdsa => {
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let signing_alg: &EcdsaSigningAlgorithm =
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args.named_curve.ok_or_else(not_supported)?.try_into()?;
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let verify_alg: &EcdsaVerificationAlgorithm =
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args.named_curve.ok_or_else(not_supported)?.try_into()?;
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let private_key;
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let public_key_bytes = match args.key.r#type {
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KeyType::Private => {
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private_key = EcdsaKeyPair::from_pkcs8(signing_alg, &*args.key.data)?;
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private_key.public_key().as_ref()
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}
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KeyType::Public => &*args.key.data,
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_ => return Err(type_error("Invalid Key format".to_string())),
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};
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let public_key =
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ring::signature::UnparsedPublicKey::new(verify_alg, public_key_bytes);
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public_key.verify(data, &*args.signature).is_ok()
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}
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_ => return Err(type_error("Unsupported algorithm".to_string())),
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};
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Ok(verification)
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}
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#[derive(Deserialize)]
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#[serde(rename_all = "camelCase")]
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pub struct DeriveKeyArg {
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key: KeyData,
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algorithm: Algorithm,
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hash: Option<CryptoHash>,
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length: usize,
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iterations: Option<u32>,
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// ECDH
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public_key: Option<KeyData>,
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named_curve: Option<CryptoNamedCurve>,
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// HKDF
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info: Option<ZeroCopyBuf>,
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}
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pub async fn op_crypto_derive_bits(
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_state: Rc<RefCell<OpState>>,
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args: DeriveKeyArg,
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zero_copy: Option<ZeroCopyBuf>,
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) -> Result<ZeroCopyBuf, AnyError> {
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let algorithm = args.algorithm;
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match algorithm {
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Algorithm::Pbkdf2 => {
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let zero_copy = zero_copy.ok_or_else(not_supported)?;
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let salt = &*zero_copy;
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// The caller must validate these cases.
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assert!(args.length > 0);
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assert!(args.length % 8 == 0);
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let algorithm = match args.hash.ok_or_else(not_supported)? {
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CryptoHash::Sha1 => pbkdf2::PBKDF2_HMAC_SHA1,
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CryptoHash::Sha256 => pbkdf2::PBKDF2_HMAC_SHA256,
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CryptoHash::Sha384 => pbkdf2::PBKDF2_HMAC_SHA384,
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CryptoHash::Sha512 => pbkdf2::PBKDF2_HMAC_SHA512,
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};
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// This will never panic. We have already checked length earlier.
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let iterations =
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NonZeroU32::new(args.iterations.ok_or_else(not_supported)?).unwrap();
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let secret = args.key.data;
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let mut out = vec![0; args.length / 8];
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pbkdf2::derive(algorithm, iterations, salt, &secret, &mut out);
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Ok(out.into())
|
|
}
|
|
Algorithm::Ecdh => {
|
|
let named_curve = args
|
|
.named_curve
|
|
.ok_or_else(|| type_error("Missing argument namedCurve".to_string()))?;
|
|
|
|
let public_key = args
|
|
.public_key
|
|
.ok_or_else(|| type_error("Missing argument publicKey"))?;
|
|
|
|
match named_curve {
|
|
CryptoNamedCurve::P256 => {
|
|
let secret_key = p256::SecretKey::from_pkcs8_der(&args.key.data)
|
|
.map_err(|_| type_error("Unexpected error decoding private key"))?;
|
|
|
|
let public_key = match public_key.r#type {
|
|
KeyType::Private => {
|
|
p256::SecretKey::from_pkcs8_der(&public_key.data)
|
|
.map_err(|_| {
|
|
type_error("Unexpected error decoding private key")
|
|
})?
|
|
.public_key()
|
|
}
|
|
KeyType::Public => {
|
|
let point = p256::EncodedPoint::from_bytes(public_key.data)
|
|
.map_err(|_| {
|
|
type_error("Unexpected error decoding private key")
|
|
})?;
|
|
|
|
let pk: Option<p256::PublicKey> =
|
|
p256::PublicKey::from_encoded_point(&point);
|
|
|
|
if let Some(pk) = pk {
|
|
pk
|
|
} else {
|
|
return Err(type_error(
|
|
"Unexpected error decoding private key",
|
|
));
|
|
}
|
|
}
|
|
_ => unreachable!(),
|
|
};
|
|
|
|
let shared_secret = p256::elliptic_curve::ecdh::diffie_hellman(
|
|
secret_key.to_secret_scalar(),
|
|
public_key.as_affine(),
|
|
);
|
|
|
|
Ok(shared_secret.as_bytes().to_vec().into())
|
|
}
|
|
// TODO(@littledivy): support for P384
|
|
// https://github.com/RustCrypto/elliptic-curves/issues/240
|
|
_ => Err(type_error("Unsupported namedCurve".to_string())),
|
|
}
|
|
}
|
|
Algorithm::Hkdf => {
|
|
let zero_copy = zero_copy.ok_or_else(not_supported)?;
|
|
let salt = &*zero_copy;
|
|
let algorithm = match args.hash.ok_or_else(not_supported)? {
|
|
CryptoHash::Sha1 => hkdf::HKDF_SHA1_FOR_LEGACY_USE_ONLY,
|
|
CryptoHash::Sha256 => hkdf::HKDF_SHA256,
|
|
CryptoHash::Sha384 => hkdf::HKDF_SHA384,
|
|
CryptoHash::Sha512 => hkdf::HKDF_SHA512,
|
|
};
|
|
|
|
let info = args
|
|
.info
|
|
.ok_or_else(|| type_error("Missing argument info".to_string()))?;
|
|
// IKM
|
|
let secret = args.key.data;
|
|
// L
|
|
let length = args.length / 8;
|
|
|
|
let salt = hkdf::Salt::new(algorithm, salt);
|
|
let prk = salt.extract(&secret);
|
|
let info = &[&*info];
|
|
let okm = prk.expand(info, HkdfOutput(length)).map_err(|_e| {
|
|
custom_error(
|
|
"DOMExceptionOperationError",
|
|
"The length provided for HKDF is too large",
|
|
)
|
|
})?;
|
|
let mut r = vec![0u8; length];
|
|
okm.fill(&mut r)?;
|
|
Ok(r.into())
|
|
}
|
|
_ => Err(type_error("Unsupported algorithm".to_string())),
|
|
}
|
|
}
|
|
|
|
fn read_rsa_public_key(key_data: KeyData) -> Result<RsaPublicKey, AnyError> {
|
|
let public_key = match key_data.r#type {
|
|
KeyType::Private => {
|
|
RsaPrivateKey::from_pkcs1_der(&*key_data.data)?.to_public_key()
|
|
}
|
|
KeyType::Public => RsaPublicKey::from_pkcs1_der(&*key_data.data)?,
|
|
KeyType::Secret => unreachable!("unexpected KeyType::Secret"),
|
|
};
|
|
Ok(public_key)
|
|
}
|
|
|
|
// The parameters field associated with OID id-RSASSA-PSS
|
|
// Defined in RFC 3447, section A.2.3
|
|
//
|
|
// RSASSA-PSS-params ::= SEQUENCE {
|
|
// hashAlgorithm [0] HashAlgorithm DEFAULT sha1,
|
|
// maskGenAlgorithm [1] MaskGenAlgorithm DEFAULT mgf1SHA1,
|
|
// saltLength [2] INTEGER DEFAULT 20,
|
|
// trailerField [3] TrailerField DEFAULT trailerFieldBC
|
|
// }
|
|
pub struct PssPrivateKeyParameters<'a> {
|
|
pub hash_algorithm: rsa::pkcs8::AlgorithmIdentifier<'a>,
|
|
pub mask_gen_algorithm: rsa::pkcs8::AlgorithmIdentifier<'a>,
|
|
pub salt_length: u32,
|
|
}
|
|
|
|
// Context-specific tag number for hashAlgorithm.
|
|
const HASH_ALGORITHM_TAG: rsa::pkcs8::der::TagNumber =
|
|
rsa::pkcs8::der::TagNumber::new(0);
|
|
|
|
// Context-specific tag number for maskGenAlgorithm.
|
|
const MASK_GEN_ALGORITHM_TAG: rsa::pkcs8::der::TagNumber =
|
|
rsa::pkcs8::der::TagNumber::new(1);
|
|
|
|
// Context-specific tag number for saltLength.
|
|
const SALT_LENGTH_TAG: rsa::pkcs8::der::TagNumber =
|
|
rsa::pkcs8::der::TagNumber::new(2);
|
|
|
|
// Context-specific tag number for pSourceAlgorithm
|
|
const P_SOURCE_ALGORITHM_TAG: rsa::pkcs8::der::TagNumber =
|
|
rsa::pkcs8::der::TagNumber::new(2);
|
|
|
|
// Default HashAlgorithm for RSASSA-PSS-params (sha1)
|
|
//
|
|
// sha1 HashAlgorithm ::= {
|
|
// algorithm id-sha1,
|
|
// parameters SHA1Parameters : NULL
|
|
// }
|
|
//
|
|
// SHA1Parameters ::= NULL
|
|
static SHA1_HASH_ALGORITHM: Lazy<rsa::pkcs8::AlgorithmIdentifier<'static>> =
|
|
Lazy::new(|| {
|
|
rsa::pkcs8::AlgorithmIdentifier {
|
|
// id-sha1
|
|
oid: ID_SHA1_OID,
|
|
// NULL
|
|
parameters: Some(asn1::Any::from(asn1::Null)),
|
|
}
|
|
});
|
|
|
|
// TODO(@littledivy): `pkcs8` should provide AlgorithmIdentifier to Any conversion.
|
|
static ENCODED_SHA1_HASH_ALGORITHM: Lazy<Vec<u8>> =
|
|
Lazy::new(|| SHA1_HASH_ALGORITHM.to_vec().unwrap());
|
|
// Default MaskGenAlgrithm for RSASSA-PSS-params (mgf1SHA1)
|
|
//
|
|
// mgf1SHA1 MaskGenAlgorithm ::= {
|
|
// algorithm id-mgf1,
|
|
// parameters HashAlgorithm : sha1
|
|
// }
|
|
static MGF1_SHA1_MASK_ALGORITHM: Lazy<
|
|
rsa::pkcs8::AlgorithmIdentifier<'static>,
|
|
> = Lazy::new(|| {
|
|
rsa::pkcs8::AlgorithmIdentifier {
|
|
// id-mgf1
|
|
oid: ID_MFG1,
|
|
// sha1
|
|
parameters: Some(
|
|
asn1::Any::from_der(&ENCODED_SHA1_HASH_ALGORITHM).unwrap(),
|
|
),
|
|
}
|
|
});
|
|
|
|
// Default PSourceAlgorithm for RSAES-OAEP-params
|
|
// The default label is an empty string.
|
|
//
|
|
// pSpecifiedEmpty PSourceAlgorithm ::= {
|
|
// algorithm id-pSpecified,
|
|
// parameters EncodingParameters : emptyString
|
|
// }
|
|
//
|
|
// emptyString EncodingParameters ::= ''H
|
|
static P_SPECIFIED_EMPTY: Lazy<rsa::pkcs8::AlgorithmIdentifier<'static>> =
|
|
Lazy::new(|| {
|
|
rsa::pkcs8::AlgorithmIdentifier {
|
|
// id-pSpecified
|
|
oid: ID_P_SPECIFIED,
|
|
// EncodingParameters
|
|
parameters: Some(asn1::Any::from(asn1::OctetString::new(b"").unwrap())),
|
|
}
|
|
});
|
|
|
|
impl<'a> TryFrom<rsa::pkcs8::der::asn1::Any<'a>>
|
|
for PssPrivateKeyParameters<'a>
|
|
{
|
|
type Error = rsa::pkcs8::der::Error;
|
|
|
|
fn try_from(
|
|
any: rsa::pkcs8::der::asn1::Any<'a>,
|
|
) -> rsa::pkcs8::der::Result<PssPrivateKeyParameters> {
|
|
any.sequence(|decoder| {
|
|
let hash_algorithm = decoder
|
|
.context_specific(HASH_ALGORITHM_TAG)?
|
|
.map(TryInto::try_into)
|
|
.transpose()?
|
|
.unwrap_or(*SHA1_HASH_ALGORITHM);
|
|
|
|
let mask_gen_algorithm = decoder
|
|
.context_specific(MASK_GEN_ALGORITHM_TAG)?
|
|
.map(TryInto::try_into)
|
|
.transpose()?
|
|
.unwrap_or(*MGF1_SHA1_MASK_ALGORITHM);
|
|
|
|
let salt_length = decoder
|
|
.context_specific(SALT_LENGTH_TAG)?
|
|
.map(TryInto::try_into)
|
|
.transpose()?
|
|
.unwrap_or(20);
|
|
|
|
Ok(Self {
|
|
hash_algorithm,
|
|
mask_gen_algorithm,
|
|
salt_length,
|
|
})
|
|
})
|
|
}
|
|
}
|
|
|
|
// The parameters field associated with OID id-RSAES-OAEP
|
|
// Defined in RFC 3447, section A.2.1
|
|
//
|
|
// RSAES-OAEP-params ::= SEQUENCE {
|
|
// hashAlgorithm [0] HashAlgorithm DEFAULT sha1,
|
|
// maskGenAlgorithm [1] MaskGenAlgorithm DEFAULT mgf1SHA1,
|
|
// pSourceAlgorithm [2] PSourceAlgorithm DEFAULT pSpecifiedEmpty
|
|
// }
|
|
pub struct OaepPrivateKeyParameters<'a> {
|
|
pub hash_algorithm: rsa::pkcs8::AlgorithmIdentifier<'a>,
|
|
pub mask_gen_algorithm: rsa::pkcs8::AlgorithmIdentifier<'a>,
|
|
pub p_source_algorithm: rsa::pkcs8::AlgorithmIdentifier<'a>,
|
|
}
|
|
|
|
impl<'a> TryFrom<rsa::pkcs8::der::asn1::Any<'a>>
|
|
for OaepPrivateKeyParameters<'a>
|
|
{
|
|
type Error = rsa::pkcs8::der::Error;
|
|
|
|
fn try_from(
|
|
any: rsa::pkcs8::der::asn1::Any<'a>,
|
|
) -> rsa::pkcs8::der::Result<OaepPrivateKeyParameters> {
|
|
any.sequence(|decoder| {
|
|
let hash_algorithm = decoder
|
|
.context_specific(HASH_ALGORITHM_TAG)?
|
|
.map(TryInto::try_into)
|
|
.transpose()?
|
|
.unwrap_or(*SHA1_HASH_ALGORITHM);
|
|
|
|
let mask_gen_algorithm = decoder
|
|
.context_specific(MASK_GEN_ALGORITHM_TAG)?
|
|
.map(TryInto::try_into)
|
|
.transpose()?
|
|
.unwrap_or(*MGF1_SHA1_MASK_ALGORITHM);
|
|
|
|
let p_source_algorithm = decoder
|
|
.context_specific(P_SOURCE_ALGORITHM_TAG)?
|
|
.map(TryInto::try_into)
|
|
.transpose()?
|
|
.unwrap_or(*P_SPECIFIED_EMPTY);
|
|
|
|
Ok(Self {
|
|
hash_algorithm,
|
|
mask_gen_algorithm,
|
|
p_source_algorithm,
|
|
})
|
|
})
|
|
}
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
#[serde(rename_all = "camelCase")]
|
|
pub struct DecryptArg {
|
|
key: KeyData,
|
|
algorithm: Algorithm,
|
|
// RSA-OAEP
|
|
hash: Option<CryptoHash>,
|
|
label: Option<ZeroCopyBuf>,
|
|
// AES-CBC
|
|
iv: Option<ZeroCopyBuf>,
|
|
length: Option<usize>,
|
|
}
|
|
|
|
pub async fn op_crypto_decrypt_key(
|
|
_state: Rc<RefCell<OpState>>,
|
|
args: DecryptArg,
|
|
zero_copy: ZeroCopyBuf,
|
|
) -> Result<ZeroCopyBuf, AnyError> {
|
|
let data = &*zero_copy;
|
|
let algorithm = args.algorithm;
|
|
|
|
match algorithm {
|
|
Algorithm::RsaOaep => {
|
|
let private_key: RsaPrivateKey =
|
|
RsaPrivateKey::from_pkcs1_der(&*args.key.data)?;
|
|
let label = args.label.map(|l| String::from_utf8_lossy(&*l).to_string());
|
|
let padding = match args
|
|
.hash
|
|
.ok_or_else(|| type_error("Missing argument hash".to_string()))?
|
|
{
|
|
CryptoHash::Sha1 => PaddingScheme::OAEP {
|
|
digest: Box::new(Sha1::new()),
|
|
mgf_digest: Box::new(Sha1::new()),
|
|
label,
|
|
},
|
|
CryptoHash::Sha256 => PaddingScheme::OAEP {
|
|
digest: Box::new(Sha256::new()),
|
|
mgf_digest: Box::new(Sha256::new()),
|
|
label,
|
|
},
|
|
CryptoHash::Sha384 => PaddingScheme::OAEP {
|
|
digest: Box::new(Sha384::new()),
|
|
mgf_digest: Box::new(Sha384::new()),
|
|
label,
|
|
},
|
|
CryptoHash::Sha512 => PaddingScheme::OAEP {
|
|
digest: Box::new(Sha512::new()),
|
|
mgf_digest: Box::new(Sha512::new()),
|
|
label,
|
|
},
|
|
};
|
|
|
|
Ok(
|
|
private_key
|
|
.decrypt(padding, data)
|
|
.map_err(|e| {
|
|
custom_error("DOMExceptionOperationError", e.to_string())
|
|
})?
|
|
.into(),
|
|
)
|
|
}
|
|
Algorithm::AesCbc => {
|
|
let key = &*args.key.data;
|
|
let length = args
|
|
.length
|
|
.ok_or_else(|| type_error("Missing argument length".to_string()))?;
|
|
let iv = args
|
|
.iv
|
|
.ok_or_else(|| type_error("Missing argument iv".to_string()))?;
|
|
|
|
// 2.
|
|
let plaintext = match length {
|
|
128 => {
|
|
// Section 10.3 Step 2 of RFC 2315 https://www.rfc-editor.org/rfc/rfc2315
|
|
type Aes128Cbc =
|
|
block_modes::Cbc<aes::Aes128, block_modes::block_padding::Pkcs7>;
|
|
let cipher = Aes128Cbc::new_from_slices(key, &iv)?;
|
|
|
|
cipher.decrypt_vec(data).map_err(|_| {
|
|
custom_error(
|
|
"DOMExceptionOperationError",
|
|
"Decryption failed".to_string(),
|
|
)
|
|
})?
|
|
}
|
|
192 => {
|
|
// Section 10.3 Step 2 of RFC 2315 https://www.rfc-editor.org/rfc/rfc2315
|
|
type Aes192Cbc =
|
|
block_modes::Cbc<aes::Aes192, block_modes::block_padding::Pkcs7>;
|
|
let cipher = Aes192Cbc::new_from_slices(key, &iv)?;
|
|
|
|
cipher.decrypt_vec(data).map_err(|_| {
|
|
custom_error(
|
|
"DOMExceptionOperationError",
|
|
"Decryption failed".to_string(),
|
|
)
|
|
})?
|
|
}
|
|
256 => {
|
|
// Section 10.3 Step 2 of RFC 2315 https://www.rfc-editor.org/rfc/rfc2315
|
|
type Aes256Cbc =
|
|
block_modes::Cbc<aes::Aes256, block_modes::block_padding::Pkcs7>;
|
|
let cipher = Aes256Cbc::new_from_slices(key, &iv)?;
|
|
|
|
cipher.decrypt_vec(data).map_err(|_| {
|
|
custom_error(
|
|
"DOMExceptionOperationError",
|
|
"Decryption failed".to_string(),
|
|
)
|
|
})?
|
|
}
|
|
_ => unreachable!(),
|
|
};
|
|
|
|
// 6.
|
|
Ok(plaintext.into())
|
|
}
|
|
_ => Err(type_error("Unsupported algorithm".to_string())),
|
|
}
|
|
}
|
|
|
|
pub fn op_crypto_random_uuid(
|
|
state: &mut OpState,
|
|
_: (),
|
|
_: (),
|
|
) -> Result<String, AnyError> {
|
|
let maybe_seeded_rng = state.try_borrow_mut::<StdRng>();
|
|
let uuid = if let Some(seeded_rng) = maybe_seeded_rng {
|
|
let mut bytes = [0u8; 16];
|
|
seeded_rng.fill(&mut bytes);
|
|
uuid::Builder::from_bytes(bytes)
|
|
.set_version(uuid::Version::Random)
|
|
.build()
|
|
} else {
|
|
uuid::Uuid::new_v4()
|
|
};
|
|
|
|
Ok(uuid.to_string())
|
|
}
|
|
|
|
pub async fn op_crypto_subtle_digest(
|
|
_state: Rc<RefCell<OpState>>,
|
|
algorithm: CryptoHash,
|
|
data: ZeroCopyBuf,
|
|
) -> Result<ZeroCopyBuf, AnyError> {
|
|
let output = tokio::task::spawn_blocking(move || {
|
|
digest::digest(algorithm.into(), &data)
|
|
.as_ref()
|
|
.to_vec()
|
|
.into()
|
|
})
|
|
.await?;
|
|
|
|
Ok(output)
|
|
}
|
|
|
|
pub fn get_declaration() -> PathBuf {
|
|
PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("lib.deno_crypto.d.ts")
|
|
}
|