@ledgerhq/hw-app-canton/lib-es/Canton.d.ts

Ledger Hardware Wallet Canton Application API

import type Transport from "@ledgerhq/hw-transport";
export type AppConfig = {
    version: string;
};
export type CantonAddress = {
    publicKey: string;
    address: string;
    path: string;
};
export type CantonSignature = string;
/**
 * Canton BOLOS API
 */
export default class Canton {
    transport: Transport;
    constructor(transport: Transport, scrambleKey?: string);
    /**
     * Get a Canton address for a given BIP-32 path.
     *
     * @param path a path in BIP-32 format
     * @param display whether to display the address on the device
     * @return the address and public key
     */
    getAddress(path: string, display?: boolean): Promise<CantonAddress>;
    /**
     * Sign a Canton transaction.
     *
     * @param path a path in BIP-32 format
     * @param txHash the transaction hash to sign
     * @return the signature
     */
    signTransaction(path: string, txHash: string): Promise<CantonSignature>;
    /**
     * Get the app configuration.
     * @return the app configuration including version
     */
    getAppConfiguration(): Promise<AppConfig>;
    /**
     * Converts 65-byte Canton format to 64-byte Ed25519:
     * [40][64_bytes_signature][00] (132 hex chars)
     * @private
     */
    private cleanSignatureFormat;
    /**
     * Helper method to handle transport response and check for errors
     * @private
     */
    private handleTransportResponse;
    /**
     * Serialize a BIP path to a data buffer for Canton BOLOS
     * @private
     */
    private serializePath;
    /**
     * Convert public key to address
     * @private
     */
    private publicKeyToAddress;
    /**
     * Extract Pubkey info from APDU response
     * @private
     * @returns Object with publicKey and chainCode as Buffer objects
     */
    private extractPublicKeyAndChainCode;
    /**
     * Extract AppVersion from APDU response
     * @private
     */
    private extractVersion;
}
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