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Implement SubtleCrypto.deriveBits with PBDKF2 (#34164)

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* Start implementing SubtleCrypto.deriveBits

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Move shared crypto operations into their own functions

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Update some doclinks

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Remove note about potential no-op

It is, indeed, a no-op.

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Move normalized algorithm digest operation into its own function

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Implement mvp for pbkdf2 derivation

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Add missing division to derive bytes instead of bits

The length argument specifies the number of bits that
we need to derive, so we should divide it by 8 to
get the number of bytes.

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Allow using PBKDF2 with usage "importKey"

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Update WPT expectations

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Fix test-tidy errors

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

* Fix clippy warnings

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>

---------

Signed-off-by: Simon Wülker <simon.wuelker@arcor.de>
This commit is contained in:
Simon Wülker 2024-11-06 16:52:15 +01:00 • committed by GitHub
parent c0a4eee1fe
commit 2f6ca9407b
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12 changed files with 369 additions and 4447 deletions
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20
components/script/dom/cryptokey.rs
View file

@ -26,6 +26,7 @@ pub enum Handle {
Aes128(Vec<u8>),
Aes192(Vec<u8>),
Aes256(Vec<u8>),
Pbkdf2(Vec<u8>),
}
/// <https://w3c.github.io/webcrypto/#cryptokey-interface>
@ -114,23 +115,23 @@ impl CryptoKey {
}
impl CryptoKeyMethods for CryptoKey {
/// <https://w3c.github.io/webcrypto/#cryptokey-interface-members>
/// <https://w3c.github.io/webcrypto/#dom-cryptokey-type>
fn Type(&self) -> KeyType {
self.key_type
}
/// <https://w3c.github.io/webcrypto/#cryptokey-interface-members>
/// <https://w3c.github.io/webcrypto/#dom-cryptokey-extractable>
fn Extractable(&self) -> bool {
self.extractable.get()
}
/// <https://w3c.github.io/webcrypto/#cryptokey-interface-members>
/// <https://w3c.github.io/webcrypto/#dom-cryptokey-algorithm>
fn Algorithm(&self, _cx: JSContext) -> NonNull<JSObject> {
NonNull::new(self.algorithm_object.get()).unwrap()
}
#[allow(unsafe_code)]
/// <https://w3c.github.io/webcrypto/#cryptokey-interface-members>
/// <https://w3c.github.io/webcrypto/#dom-cryptokey-usages>
fn Usages(&self, cx: JSContext) -> NonNull<JSObject> {
unsafe {
rooted!(in(*cx) let mut usages: Value);
@ -139,3 +140,14 @@ impl CryptoKeyMethods for CryptoKey {
}
}
}
impl Handle {
pub fn as_bytes(&self) -> &[u8] {
match self {
Self::Aes128(bytes) => bytes,
Self::Aes192(bytes) => bytes,
Self::Aes256(bytes) => bytes,
Self::Pbkdf2(bytes) => bytes,
}
}
}