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LibWeb: Implement Encapsulate(Key|Bits) dictionaries

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These are needed structure for the encapsulate(Key|Bits) operations.
This commit is contained in:
Tete17 2025-11-27 19:14:41 +01:00 • committed by Jelle Raaijmakers
parent 1d6a64b26c
commit 42f55c7c97
Notes: github-actions[bot] 2025-11-27 20:51:24 +00:00
3 changed files with 54 additions and 0 deletions
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26
Libraries/LibWeb/Crypto/CryptoAlgorithms.cpp
View file

@ -274,6 +274,32 @@ static WebIDL::ExceptionOr<ByteBuffer> generate_random_key(JS::VM& vm, u16 const
return key_buffer;
}
JS::ThrowCompletionOr<GC::Ref<JS::Object>> EncapsulatedKey::to_object(JS::Realm& realm)
{
auto object = JS::Object::create(realm, realm.intrinsics().object_prototype());
if (shared_key.has_value())
TRY(object->create_data_property("shared_key"_utf16_fly_string, shared_key.value()));
if (ciphertext.has_value())
TRY(object->create_data_property("ciphertext"_utf16_fly_string, JS::ArrayBuffer::create(realm, ciphertext.value())));
return object;
}
JS::ThrowCompletionOr<GC::Ref<JS::Object>> EncapsulatedBits::to_object(JS::Realm& realm)
{
auto object = JS::Object::create(realm, realm.intrinsics().object_prototype());
if (shared_key.has_value())
TRY(object->create_data_property("shared_key"_utf16_fly_string, JS::ArrayBuffer::create(realm, shared_key.value())));
if (ciphertext.has_value())
TRY(object->create_data_property("ciphertext"_utf16_fly_string, JS::ArrayBuffer::create(realm, ciphertext.value())));
return object;
}
AlgorithmParams::~AlgorithmParams() = default;
JS::ThrowCompletionOr<NonnullOwnPtr<AlgorithmParams>> AlgorithmParams::from_value(JS::VM&, JS::Value)

16
Libraries/LibWeb/Crypto/CryptoAlgorithms.h
View file

@ -26,6 +26,22 @@ using AlgorithmIdentifier = Variant<GC::Root<JS::Object>, String>;
using NamedCurve = String;
using KeyDataType = Variant<GC::Root<WebIDL::BufferSource>, Bindings::JsonWebKey>;
// https://wicg.github.io/webcrypto-modern-algos/#encapsulation
struct EncapsulatedKey {
Optional<GC::Root<CryptoKey>> shared_key;
Optional<ByteBuffer> ciphertext;
JS::ThrowCompletionOr<GC::Ref<JS::Object>> to_object(JS::Realm&);
};
// https://wicg.github.io/webcrypto-modern-algos/#encapsulation
struct EncapsulatedBits {
Optional<ByteBuffer> shared_key;
Optional<ByteBuffer> ciphertext;
JS::ThrowCompletionOr<GC::Ref<JS::Object>> to_object(JS::Realm&);
};
struct HashAlgorithmIdentifier : public AlgorithmIdentifier {
using AlgorithmIdentifier::AlgorithmIdentifier;

12
Libraries/LibWeb/Crypto/SubtleCrypto.idl
View file

@ -42,6 +42,18 @@ dictionary JsonWebKey {
DOMString k;
};
// https://wicg.github.io/webcrypto-modern-algos/#encapsulation
dictionary EncapsulatedKey {
CryptoKey sharedKey;
ArrayBuffer ciphertext;
};
// https://wicg.github.io/webcrypto-modern-algos/#encapsulation
dictionary EncapsulatedBits {
ArrayBuffer sharedKey;
ArrayBuffer ciphertext;
};
// https://w3c.github.io/webcrypto/#subtlecrypto-interface
[SecureContext,Exposed=(Window,Worker)]
interface SubtleCrypto {