Function: exportFalconRsSecretKey()

exportFalconRsSecretKey(secretKey): Uint8Array

Defined in: s2morrow/keys.ts:601

Converts a NIST secret key into the falcon-rs format (f‖g‖F‖G, 4 × 896 bytes).

Warning: falcon-rs derives the seed of its sampler from the public salt of each signature, so signing with falcon-rs exposes the key: keep signing with this library.

Parameters

secretKey

string | Uint8Array<ArrayBufferLike>

the NIST secret key (1281 bytes), or its hex string

Returns

Uint8Array

the falcon-rs secret key (3584 bytes)

Throws

when the secret key is invalid

Example

const { secretKey } = falcon512.generateKeyPair();
const result = falcon512.exportFalconRsSecretKey(secretKey);
// result = Uint8Array(3584) […]