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webcrypto/src/mechs/ed/eddsa.ts

79 lines
1.9 KiB
TypeScript

import * as core from "webcrypto-core";
import { EdCrypto } from "./crypto";
import { EdPrivateKey } from "./private_key";
import { EdPublicKey } from "./public_key";
import { CryptoKey } from "../../keys";
import { getCryptoKey, setCryptoKey } from "../storage";
export class EdDsaProvider extends core.EdDsaProvider {
public async onGenerateKey(
algorithm: EcKeyGenParams,
extractable: boolean,
keyUsages: KeyUsage[]
): Promise<CryptoKeyPair> {
const keys = await EdCrypto.generateKey(
{
name: this.name,
namedCurve: algorithm.namedCurve.replace(/^ed/i, "Ed"),
},
extractable,
keyUsages
);
return {
privateKey: setCryptoKey(keys.privateKey as CryptoKey),
publicKey: setCryptoKey(keys.publicKey as CryptoKey),
};
}
public async onSign(
algorithm: EcdsaParams,
key: CryptoKey,
data: ArrayBuffer
): Promise<ArrayBuffer> {
return EdCrypto.sign(
algorithm,
getCryptoKey(key) as EdPrivateKey,
new Uint8Array(data)
);
}
public async onVerify(
algorithm: EcdsaParams,
key: CryptoKey,
signature: ArrayBuffer,
data: ArrayBuffer
): Promise<boolean> {
return EdCrypto.verify(
algorithm,
getCryptoKey(key) as EdPublicKey,
new Uint8Array(signature),
new Uint8Array(data)
);
}
public async onExportKey(
format: KeyFormat,
key: CryptoKey
): Promise<ArrayBuffer | JsonWebKey> {
return EdCrypto.exportKey(format, getCryptoKey(key));
}
public async onImportKey(
format: KeyFormat,
keyData: ArrayBuffer | JsonWebKey,
algorithm: EcKeyImportParams,
extractable: boolean,
keyUsages: KeyUsage[]
): Promise<core.CryptoKey> {
const key = await EdCrypto.importKey(
format,
keyData,
{ ...algorithm, name: this.name },
extractable,
keyUsages
);
return setCryptoKey(key);
}
}