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https://github.com/denoland/deno.git
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704 lines
20 KiB
Rust
704 lines
20 KiB
Rust
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
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use aes_kw::KekAes128;
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use aes_kw::KekAes192;
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use aes_kw::KekAes256;
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use base64::prelude::BASE64_URL_SAFE_NO_PAD;
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use base64::Engine;
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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::op2;
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use deno_core::ToJsBuffer;
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use deno_core::unsync::spawn_blocking;
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use deno_core::JsBuffer;
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use deno_core::OpState;
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use serde::Deserialize;
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use shared::operation_error;
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use p256::elliptic_curve::sec1::FromEncodedPoint;
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use p256::pkcs8::DecodePrivateKey;
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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::pkcs1::DecodeRsaPrivateKey;
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use rsa::pkcs1::DecodeRsaPublicKey;
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use rsa::signature::SignatureEncoding;
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use rsa::signature::Signer;
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use rsa::signature::Verifier;
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use rsa::traits::SignatureScheme;
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use rsa::Pss;
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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::num::NonZeroU32;
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use std::path::PathBuf;
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pub use rand; // Re-export rand
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mod decrypt;
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mod ed25519;
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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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mod x25519;
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pub use crate::decrypt::op_crypto_decrypt;
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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::V8RawKeyData;
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deno_core::extension!(deno_crypto,
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deps = [ deno_webidl, deno_web ],
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ops = [
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op_crypto_get_random_values,
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op_crypto_generate_key,
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op_crypto_sign_key,
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op_crypto_verify_key,
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op_crypto_derive_bits,
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op_crypto_import_key,
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op_crypto_export_key,
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op_crypto_encrypt,
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op_crypto_decrypt,
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op_crypto_subtle_digest,
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op_crypto_random_uuid,
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op_crypto_wrap_key,
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op_crypto_unwrap_key,
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op_crypto_base64url_decode,
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op_crypto_base64url_encode,
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x25519::op_crypto_generate_x25519_keypair,
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x25519::op_crypto_derive_bits_x25519,
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x25519::op_crypto_import_spki_x25519,
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x25519::op_crypto_import_pkcs8_x25519,
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ed25519::op_crypto_generate_ed25519_keypair,
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ed25519::op_crypto_import_spki_ed25519,
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ed25519::op_crypto_import_pkcs8_ed25519,
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ed25519::op_crypto_sign_ed25519,
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ed25519::op_crypto_verify_ed25519,
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ed25519::op_crypto_export_spki_ed25519,
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ed25519::op_crypto_export_pkcs8_ed25519,
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ed25519::op_crypto_jwk_x_ed25519,
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x25519::op_crypto_export_spki_x25519,
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x25519::op_crypto_export_pkcs8_x25519,
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],
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esm = [ "00_crypto.js" ],
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options = {
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maybe_seed: Option<u64>,
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},
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state = |state, options| {
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if let Some(seed) = options.maybe_seed {
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state.put(StdRng::seed_from_u64(seed));
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}
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},
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);
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#[op2]
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#[serde]
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pub fn op_crypto_base64url_decode(
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#[string] data: String,
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) -> Result<ToJsBuffer, AnyError> {
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let data: Vec<u8> = BASE64_URL_SAFE_NO_PAD.decode(data)?;
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Ok(data.into())
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}
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#[op2]
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#[string]
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pub fn op_crypto_base64url_encode(#[buffer] data: JsBuffer) -> String {
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let data: String = BASE64_URL_SAFE_NO_PAD.encode(data);
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data
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}
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#[op2(fast)]
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pub fn op_crypto_get_random_values(
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state: &mut OpState,
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#[buffer] out: &mut [u8],
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) -> Result<(), AnyError> {
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if out.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)", out.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(out);
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} else {
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let mut rng = thread_rng();
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rng.fill(out);
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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: JsBuffer,
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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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#[op2(async)]
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#[serde]
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pub async fn op_crypto_sign_key(
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#[serde] args: SignArg,
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#[buffer] zero_copy: JsBuffer,
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) -> Result<ToJsBuffer, 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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use rsa::pkcs1v15::SigningKey;
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let private_key = RsaPrivateKey::from_pkcs1_der(&args.key.data)?;
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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 signing_key = SigningKey::<Sha1>::new(private_key);
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signing_key.sign(data)
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}
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CryptoHash::Sha256 => {
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let signing_key = SigningKey::<Sha256>::new(private_key);
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signing_key.sign(data)
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}
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CryptoHash::Sha384 => {
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let signing_key = SigningKey::<Sha384>::new(private_key);
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signing_key.sign(data)
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}
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CryptoHash::Sha512 => {
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let signing_key = SigningKey::<Sha512>::new(private_key);
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signing_key.sign(data)
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}
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}
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.to_vec()
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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 mut rng = OsRng;
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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 signing_key = Pss::new_with_salt::<Sha1>(salt_len);
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let hashed = Sha1::digest(data);
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signing_key.sign(Some(&mut rng), &private_key, &hashed)?
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}
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CryptoHash::Sha256 => {
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let signing_key = Pss::new_with_salt::<Sha256>(salt_len);
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let hashed = Sha256::digest(data);
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signing_key.sign(Some(&mut rng), &private_key, &hashed)?
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}
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CryptoHash::Sha384 => {
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let signing_key = Pss::new_with_salt::<Sha384>(salt_len);
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let hashed = Sha384::digest(data);
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signing_key.sign(Some(&mut rng), &private_key, &hashed)?
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}
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CryptoHash::Sha512 => {
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let signing_key = Pss::new_with_salt::<Sha512>(salt_len);
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let hashed = Sha512::digest(data);
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signing_key.sign(Some(&mut rng), &private_key, &hashed)?
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}
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}
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.to_vec()
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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)?.into();
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let rng = RingRand::SystemRandom::new();
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let key_pair = EcdsaKeyPair::from_pkcs8(curve, &args.key.data, &rng)?;
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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 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: JsBuffer,
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named_curve: Option<CryptoNamedCurve>,
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}
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#[op2(async)]
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pub async fn op_crypto_verify_key(
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#[serde] args: VerifyArg,
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#[buffer] zero_copy: JsBuffer,
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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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use rsa::pkcs1v15::Signature;
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use rsa::pkcs1v15::VerifyingKey;
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let public_key = read_rsa_public_key(args.key)?;
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let signature: Signature = args.signature.as_ref().try_into()?;
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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 verifying_key = VerifyingKey::<Sha1>::new(public_key);
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verifying_key.verify(data, &signature).is_ok()
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}
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CryptoHash::Sha256 => {
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let verifying_key = VerifyingKey::<Sha256>::new(public_key);
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verifying_key.verify(data, &signature).is_ok()
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}
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CryptoHash::Sha384 => {
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let verifying_key = VerifyingKey::<Sha384>::new(public_key);
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verifying_key.verify(data, &signature).is_ok()
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}
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CryptoHash::Sha512 => {
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let verifying_key = VerifyingKey::<Sha512>::new(public_key);
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verifying_key.verify(data, &signature).is_ok()
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}
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}
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}
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Algorithm::RsaPss => {
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let public_key = read_rsa_public_key(args.key)?;
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let signature = args.signature.as_ref();
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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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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 pss = Pss::new_with_salt::<Sha1>(salt_len);
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let hashed = Sha1::digest(data);
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pss.verify(&public_key, &hashed, signature).is_ok()
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}
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CryptoHash::Sha256 => {
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let pss = Pss::new_with_salt::<Sha256>(salt_len);
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let hashed = Sha256::digest(data);
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pss.verify(&public_key, &hashed, signature).is_ok()
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}
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CryptoHash::Sha384 => {
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let pss = Pss::new_with_salt::<Sha384>(salt_len);
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let hashed = Sha384::digest(data);
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pss.verify(&public_key, &hashed, signature).is_ok()
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}
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CryptoHash::Sha512 => {
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let pss = Pss::new_with_salt::<Sha512>(salt_len);
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let hashed = Sha512::digest(data);
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pss.verify(&public_key, &hashed, signature).is_ok()
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}
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}
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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)?.into();
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let verify_alg: &EcdsaVerificationAlgorithm =
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args.named_curve.ok_or_else(not_supported)?.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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let rng = RingRand::SystemRandom::new();
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private_key =
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EcdsaKeyPair::from_pkcs8(signing_alg, &args.key.data, &rng)?;
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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<JsBuffer>,
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}
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#[op2(async)]
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#[serde]
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pub async fn op_crypto_derive_bits(
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#[serde] args: DeriveKeyArg,
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#[buffer] zero_copy: Option<JsBuffer>,
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) -> Result<ToJsBuffer, 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())
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}
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Algorithm::Ecdh => {
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let named_curve = args
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.named_curve
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.ok_or_else(|| type_error("Missing argument namedCurve".to_string()))?;
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let public_key = args
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.public_key
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.ok_or_else(|| type_error("Missing argument publicKey"))?;
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match named_curve {
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CryptoNamedCurve::P256 => {
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let secret_key = p256::SecretKey::from_pkcs8_der(&args.key.data)
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.map_err(|_| type_error("Unexpected error decoding private key"))?;
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let public_key = match public_key.r#type {
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KeyType::Private => {
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p256::SecretKey::from_pkcs8_der(&public_key.data)
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.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 = p256::PublicKey::from_encoded_point(&point);
|
|
// pk is a constant time Option.
|
|
if pk.is_some().into() {
|
|
pk.unwrap()
|
|
} else {
|
|
return Err(type_error(
|
|
"Unexpected error decoding private key",
|
|
));
|
|
}
|
|
}
|
|
_ => unreachable!(),
|
|
};
|
|
|
|
let shared_secret = p256::elliptic_curve::ecdh::diffie_hellman(
|
|
secret_key.to_nonzero_scalar(),
|
|
public_key.as_affine(),
|
|
);
|
|
|
|
// raw serialized x-coordinate of the computed point
|
|
Ok(shared_secret.raw_secret_bytes().to_vec().into())
|
|
}
|
|
CryptoNamedCurve::P384 => {
|
|
let secret_key = p384::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 => {
|
|
p384::SecretKey::from_pkcs8_der(&public_key.data)
|
|
.map_err(|_| {
|
|
type_error("Unexpected error decoding private key")
|
|
})?
|
|
.public_key()
|
|
}
|
|
KeyType::Public => {
|
|
let point = p384::EncodedPoint::from_bytes(public_key.data)
|
|
.map_err(|_| {
|
|
type_error("Unexpected error decoding private key")
|
|
})?;
|
|
|
|
let pk = p384::PublicKey::from_encoded_point(&point);
|
|
// pk is a constant time Option.
|
|
if pk.is_some().into() {
|
|
pk.unwrap()
|
|
} else {
|
|
return Err(type_error(
|
|
"Unexpected error decoding private key",
|
|
));
|
|
}
|
|
}
|
|
_ => unreachable!(),
|
|
};
|
|
|
|
let shared_secret = p384::elliptic_curve::ecdh::diffie_hellman(
|
|
secret_key.to_nonzero_scalar(),
|
|
public_key.as_affine(),
|
|
);
|
|
|
|
// raw serialized x-coordinate of the computed point
|
|
Ok(shared_secret.raw_secret_bytes().to_vec().into())
|
|
}
|
|
}
|
|
}
|
|
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)
|
|
}
|
|
|
|
#[op2]
|
|
#[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)
|
|
.with_version(uuid::Version::Random)
|
|
.into_uuid()
|
|
} else {
|
|
uuid::Uuid::new_v4()
|
|
};
|
|
|
|
Ok(uuid.to_string())
|
|
}
|
|
|
|
#[op2(async)]
|
|
#[serde]
|
|
pub async fn op_crypto_subtle_digest(
|
|
#[serde] algorithm: CryptoHash,
|
|
#[buffer] data: JsBuffer,
|
|
) -> Result<ToJsBuffer, AnyError> {
|
|
let output = spawn_blocking(move || {
|
|
digest::digest(algorithm.into(), &data)
|
|
.as_ref()
|
|
.to_vec()
|
|
.into()
|
|
})
|
|
.await?;
|
|
|
|
Ok(output)
|
|
}
|
|
|
|
#[derive(Deserialize)]
|
|
#[serde(rename_all = "camelCase")]
|
|
pub struct WrapUnwrapKeyArg {
|
|
key: V8RawKeyData,
|
|
algorithm: Algorithm,
|
|
}
|
|
|
|
#[op2]
|
|
#[serde]
|
|
pub fn op_crypto_wrap_key(
|
|
#[serde] args: WrapUnwrapKeyArg,
|
|
#[buffer] data: JsBuffer,
|
|
) -> Result<ToJsBuffer, AnyError> {
|
|
let algorithm = args.algorithm;
|
|
|
|
match algorithm {
|
|
Algorithm::AesKw => {
|
|
let key = args.key.as_secret_key()?;
|
|
|
|
if data.len() % 8 != 0 {
|
|
return Err(type_error("Data must be multiple of 8 bytes"));
|
|
}
|
|
|
|
let wrapped_key = match key.len() {
|
|
16 => KekAes128::new(key.into()).wrap_vec(&data),
|
|
24 => KekAes192::new(key.into()).wrap_vec(&data),
|
|
32 => KekAes256::new(key.into()).wrap_vec(&data),
|
|
_ => return Err(type_error("Invalid key length")),
|
|
}
|
|
.map_err(|_| operation_error("encryption error"))?;
|
|
|
|
Ok(wrapped_key.into())
|
|
}
|
|
_ => Err(type_error("Unsupported algorithm")),
|
|
}
|
|
}
|
|
|
|
#[op2]
|
|
#[serde]
|
|
pub fn op_crypto_unwrap_key(
|
|
#[serde] args: WrapUnwrapKeyArg,
|
|
#[buffer] data: JsBuffer,
|
|
) -> Result<ToJsBuffer, AnyError> {
|
|
let algorithm = args.algorithm;
|
|
match algorithm {
|
|
Algorithm::AesKw => {
|
|
let key = args.key.as_secret_key()?;
|
|
|
|
if data.len() % 8 != 0 {
|
|
return Err(type_error("Data must be multiple of 8 bytes"));
|
|
}
|
|
|
|
let unwrapped_key = match key.len() {
|
|
16 => KekAes128::new(key.into()).unwrap_vec(&data),
|
|
24 => KekAes192::new(key.into()).unwrap_vec(&data),
|
|
32 => KekAes256::new(key.into()).unwrap_vec(&data),
|
|
_ => return Err(type_error("Invalid key length")),
|
|
}
|
|
.map_err(|_| {
|
|
operation_error("decryption error - integrity check failed")
|
|
})?;
|
|
|
|
Ok(unwrapped_key.into())
|
|
}
|
|
_ => Err(type_error("Unsupported algorithm")),
|
|
}
|
|
}
|
|
|
|
pub fn get_declaration() -> PathBuf {
|
|
PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("lib.deno_crypto.d.ts")
|
|
}
|