Generate a random alpha/numeric string based on a given length using Java

randomAlphaNumericString.cfm

<cfscript>

string function randomAlphaNumericString(required numeric length) {
    var alphaNum = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
    var SecureRandom = new java("java.security.SecureRandom"); // Note: CF2018 syntax
    var rng = SecureRandom.getInstanceStrong();
    var result = "";
    
    for (var i = 0; i < arguments.length; i++) {
    	result &= alphaNum.charAt( rng.nextInt(alphaNum.len()) );
    }
    
    return result;
}

writeDump(randomAlphaNumericString(64));

</cfscript>

hope this will work, thank you ❤