cosmosGetPublicKey

Use requirement

• Firmware version required

  • Touch: 4.0.0

  • Classic/Mini: 2.10.0

Cosmos: get public key

Retrieves BIP32 extended public derived by given BIP32 path. User is presented with a description of the requested key and asked to confirm the export.

const result = await HardwareSDK.cosmosGetPublicKey(connectId, deviceId, params);

Params

Optional common params

Exporting single public key

• path - required string | Array<number> minimum length is 1.

• curve - optional string of the elliptic curve algorithm, default is secp256k1

• showOnOneKey - optional boolean determines if address will be displayed on device. Default is set to true

Exporting bundle of public keys

• bundle - Array of Objects with path, showOnOneKey , curve fields

Example

Return public key of fifth cosmos account:

HardwareSDK.cosmosGetPublicKey(connectId, deviceId, {
    path: "m/44'/118'/0'/0/0",
    curve: 'secp256k1',
    showOnOneKey: true
});

Return a bundle of public keys for multiple cosmos accounts:

HardwareSDK.cosmosGetPublicKey(connectId, deviceId, {
    bundle: [
        { path: "m/44'/118'/0'/0/0" }, // account 1
        { path: "m/44'/118'/1'/0/0" }, // account 2
        { path: "m/44'/118'/2'/0/0" }, // account 3
    ]
});

Result

Result with only one public key

{
    success: true,
    payload: {
        path: string, // hardended path
        publicKey: string
    }
}

Read more about BIP32 serialization format

Result with bundle of public keys

{
    success: true,
    payload: [
        { path: serializedPath, publicKey }, // account 1
        { path: serializedPath, publicKey }, // account 2
        { path: serializedPath, publicKey }, // account 3
    ]
}

Error

{
    success: false,
    payload: {
        error: string, // error message
        code: number // error code
    }
}