Encryption

getRandomValues

TIP

The API usage is as follows: wx.getRandomValues(Object object)

• Functional description: Get cryptographically secure random numbers

• Parameters and descriptions: Object object。

  Properties	Type	Default value	Required	Description
  length	number	-	Yes	Integer, the number of bytes to generate random numbers, maximum 1048584
  success	Function	-	No	Callback function for successful interface call
  fail	Function	-	No	Callback function for failed interface call
  complete	Function	-	No	Callback function for interface call completion (executed regardless of success or failure)

• object.success callback function parameters: Object res。

  Properties	Type	Description
  randomValues	ArrayBuffer	Random number content, length is the number of bytes passed in

• Sample code:

wx.getRandomValues({
  length: 6 // Generate a random number of 6-byte length,
  success: res => {
    console.log(wx.arrayBufferToBase64(res.randomValues)) // Print after converting to a base64 string
  }
})