accounts/dist/core/keystores/secp256k1.js

Tempo Accounts SDK

import { PublicKey, Secp256k1 } from 'ox';
import { Account as TempoAccount } from 'viem/tempo';
/**
 * Pure-JS secp256k1 keystore. The private key is held as hex in the handle
 * and signing runs in JavaScript — at-rest protection is the host app's
 * storage adapter, and the key is readable by anything with JS execution.
 * Opt into it via `keyType: 'secp256k1'`; secp256k1 signatures are the
 * chain's cheapest envelope.
 */
export function secp256k1() {
    return {
        async createKey() {
            const privateKey = Secp256k1.randomPrivateKey();
            return {
                handle: { kind: 'secp256k1', privateKey },
                publicKey: PublicKey.toHex(Secp256k1.getPublicKey({ privateKey })),
            };
        },
        toAccount(record, context) {
            const handle = record.handle;
            if (handle?.kind !== 'secp256k1' || !handle.privateKey)
                throw new Error('Unrecognized `secp256k1` keystore handle.');
            return TempoAccount.fromSecp256k1(handle.privateKey, {
                access: context.access,
                keyAuthorizationManager: context.keyAuthorizationManager,
            });
        },
    };
}
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