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LibWeb: Implement SubtleCrypto.generateKey for RSA-OAEP

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This patch implements and tests window.crypto.sublte.generateKey with
an RSA-OAEP algorithm. In order for the types to be happy, the
KeyAlgorithms objects are moved to their own .h/.cpp pair, and the new
KeyAlgorithms for RSA are added there.
This commit is contained in:
Andrew Kaster
2024-03-08 16:30:17 -07:00
committed by Andrew Kaster
parent 008c89edde
commit a9d240c647
Notes: sideshowbarker 2024-07-17 07:25:39 +09:00 
Author: https://github.com/ADKaster
Commit: https://github.com/SerenityOS/serenity/commit/a9d240c647
Pull-request: https://github.com/SerenityOS/serenity/pull/23532
12 changed files with 536 additions and 81 deletions
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33
Userland/Libraries/LibWeb/Crypto/CryptoAlgorithms.h
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@@ -8,6 +8,7 @@
#include <AK/EnumBits.h>
#include <AK/String.h>
#include <LibCrypto/BigInt/UnsignedBigInteger.h>
#include <LibJS/Forward.h>
#include <LibJS/Heap/GCPtr.h>
#include <LibWeb/Bindings/SubtleCryptoPrototype.h>
@@ -18,12 +19,11 @@
namespace Web::Crypto {
using KeyDataType = Variant<JS::Handle<WebIDL::BufferSource>, Bindings::JsonWebKey>;
using AlgorithmIdentifier = Variant<JS::Handle<JS::Object>, String>;
using HashAlgorithmIdentifier = AlgorithmIdentifier;
using KeyDataType = Variant<JS::Handle<WebIDL::BufferSource>, Bindings::JsonWebKey>;
// https://w3c.github.io/webcrypto/#algorithm-overview
struct AlgorithmParams {
String name;
@@ -39,6 +39,22 @@ struct PBKDF2Params : public AlgorithmParams {
static JS::ThrowCompletionOr<NonnullOwnPtr<AlgorithmParams>> from_value(JS::VM&, JS::Value);
};
// https://w3c.github.io/webcrypto/#dfn-RsaKeyGenParams
struct RsaKeyGenParams : public AlgorithmParams {
u32 modulus_length;
// NOTE that the raw data is going to be in Big Endian u8[] format
::Crypto::UnsignedBigInteger public_exponent;
static JS::ThrowCompletionOr<NonnullOwnPtr<AlgorithmParams>> from_value(JS::VM&, JS::Value);
};
// https://w3c.github.io/webcrypto/#dfn-RsaHashedKeyGenParams
struct RsaHashedKeyGenParams : public RsaKeyGenParams {
HashAlgorithmIdentifier hash;
static JS::ThrowCompletionOr<NonnullOwnPtr<AlgorithmParams>> from_value(JS::VM&, JS::Value);
};
class AlgorithmMethods {
public:
virtual ~AlgorithmMethods();
@@ -69,6 +85,19 @@ protected:
JS::Realm& m_realm;
};
class RSAOAEP : public AlgorithmMethods {
public:
virtual WebIDL::ExceptionOr<Variant<JS::NonnullGCPtr<CryptoKey>, JS::NonnullGCPtr<CryptoKeyPair>>> generate_key(AlgorithmParams const&, bool, Vector<Bindings::KeyUsage> const&) override;
static NonnullOwnPtr<AlgorithmMethods> create(JS::Realm& realm) { return adopt_own(*new RSAOAEP(realm)); }
private:
explicit RSAOAEP(JS::Realm& realm)
: AlgorithmMethods(realm)
{
}
};
class PBKDF2 : public AlgorithmMethods {
public:
virtual WebIDL::ExceptionOr<JS::NonnullGCPtr<CryptoKey>> import_key(AlgorithmParams const&, Bindings::KeyFormat, CryptoKey::InternalKeyData, bool, Vector<Bindings::KeyUsage> const&) override;