[nonce generator] 随机字符串生成器 #Kotlin

note.kt

fun generateNonce(size: Int): String {
	val nonceScope = "1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
	val scopeSize = nonceScope.length
	val nonceItem: (Int) -> Char = { nonceScope[(scopeSize * Math.random()).toInt()] }
	return Array(size, nonceItem).joinToString("")
}