@ledgerhq/hw-app-solana/lib-es/descriptor.js

Ledger Hardware Wallet Solana Application API

function buildTLV(tag, value) {
    const length = value.length;
    if (length > 0xff) {
        throw new Error("Value length exceeds 255 bytes");
    }
    return Buffer.concat([tag, new Uint8Array([length]), value]);
}
export function buildDescriptor({ data, signature }) {
    const SIGNATURE_TAG = Buffer.from(new Uint8Array([0x08]));
    return Buffer.concat([data, buildTLV(SIGNATURE_TAG, signature)]);
}
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