# UserCryptoManager.getRandomValues(Object object)

Start from base library version 2.17.3. Please remaining backward compatible.

with Promise style call: Supported

Mini Program plugin: Not supported

Obtaining cryptographically secure random numbers

# parameter

# Object object

attribute	type	Required	Introductions
length	number	yes	Integer, number of bytes to generate random numbers, maximum 1048576
success	function	no	Interface calls the successful callback function
fail	function	no	Interface calls failed callback functions
complete	function	no	Callback function at the end of an interface call (both successful and unsuccessful calls are executed)

# object.success callback

# parameter

# Object object

attribute	type	Introductions
randomValues	ArrayBuffer	Random number content, length is the number of bytes passed in

# sample code

wx.getRandomValues({
  length: 6 // Generation 6 A random number of bytes in length,
  success: res => {
    console.log(wx.arrayBufferToBase64(res.randomValues)) // Convert to base64 Print after string
  }
})