crypto-rand/org.kotlincrypto.random/CryptoRand/Default

Default

object Default : CryptoRand(source)

The default implementation of CryptoRand.

The following APIs are used for procuring cryptographically secure random data:

Jvm: java.security.SecureRandom
Js:

Browser: Crypto.getRandomValues()
Node: Crypto.randomFillSync()

WasmJs:

Browser: Crypto.getRandomValues()
Node: Crypto.randomFillSync()

WasmWasi: random_get
Native:

Linux & Android Native targets: getrandom(2) when available (GLIBC 2.25+ & Android API 23+), with a fallback to reading from /dev/urandom after polling /dev/random once (per process lifetime) to ensure appropriate levels of system entropy are had.
Apple targets: CCRandomGenerateBytes
Windows targets: BCryptGenRandom

Functions

nextBytes

open override fun nextBytes(buf: ByteArray): ByteArray

Fills the provided buf array with securely generated random data, procured from system sources. If the underlying system has not collected enough entropy yet, this function may block.