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webcrypto/src/mechs/ed/eddsa.ts

42 lines
1.7 KiB
TypeScript

import * as core from "webcrypto-core";
import { CryptoKey } from "../../keys";
import { getCryptoKey, setCryptoKey } from "../storage";
import { EdCrypto } from "./crypto";
import { EdPrivateKey } from "./private_key";
import { EdPublicKey } from "./public_key";
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);
}
}