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webcrypto/src/mechs/rsa/rsa_pss.ts

103 lines
2.3 KiB
TypeScript

import * as core from "webcrypto-core";
import { RsaCrypto } from "./crypto";
import { RsaPrivateKey } from "./private_key";
import { RsaPublicKey } from "./public_key";
import { setCryptoKey, getCryptoKey } from "../storage";
export class RsaPssProvider extends core.RsaPssProvider {
public override hashAlgorithms = [
"SHA-1",
"SHA-256",
"SHA-384",
"SHA-512",
"shake128",
"shake256",
"SHA3-256",
"SHA3-384",
"SHA3-512",
];
public async onGenerateKey(
algorithm: RsaHashedKeyGenParams,
extractable: boolean,
keyUsages: KeyUsage[]
): Promise<CryptoKeyPair> {
const keys = await RsaCrypto.generateKey(
{
...algorithm,
name: this.name,
},
extractable,
keyUsages
);
return {
privateKey: setCryptoKey(keys.privateKey as RsaPrivateKey),
publicKey: setCryptoKey(keys.publicKey as RsaPublicKey),
};
}
public async onSign(
algorithm: RsaPssParams,
key: RsaPrivateKey,
data: ArrayBuffer
): Promise<ArrayBuffer> {
return RsaCrypto.sign(
algorithm,
getCryptoKey(key) as RsaPrivateKey,
new Uint8Array(data)
);
}
public async onVerify(
algorithm: RsaPssParams,
key: RsaPublicKey,
signature: ArrayBuffer,
data: ArrayBuffer
): Promise<boolean> {
return RsaCrypto.verify(
algorithm,
getCryptoKey(key) as RsaPublicKey,
new Uint8Array(signature),
new Uint8Array(data)
);
}
public async onExportKey(
format: KeyFormat,
key: CryptoKey
): Promise<JsonWebKey | ArrayBuffer> {
return RsaCrypto.exportKey(format, getCryptoKey(key));
}
public async onImportKey(
format: KeyFormat,
keyData: JsonWebKey | ArrayBuffer,
algorithm: RsaHashedImportParams,
extractable: boolean,
keyUsages: KeyUsage[]
): Promise<CryptoKey> {
const key = await RsaCrypto.importKey(
format,
keyData,
{ ...algorithm, name: this.name },
extractable,
keyUsages
);
return setCryptoKey(key);
}
public override checkCryptoKey(key: CryptoKey, keyUsage?: KeyUsage) {
super.checkCryptoKey(key, keyUsage);
const internalKey = getCryptoKey(key);
if (
!(
internalKey instanceof RsaPrivateKey ||
internalKey instanceof RsaPublicKey
)
) {
throw new TypeError("key: Is not RSA CryptoKey");
}
}
}