API reference / @evolu/common / Crypto / createPadmePaddedLength

Function: createPadmePaddedLength()

function createPadmePaddedLength(
  length,
): number & Brand<"Int"> & Brand<"NonNegative">;

Defined in: packages/common/src/Crypto.ts:183

Returns the PADMÉ padded length for a given input length.

PADMÉ limits information leakage about the length of the plain-text for a wide range of encrypted data sizes.

See the PURBs paper for details: https://bford.info/pub/sec/purb.pdf

Parameters

Returns

number & Brand<"Int"> & Brand<"NonNegative">