CPFGenerator.swift

//Based on: https://github.com/nortthon/CPF-CNPJ-Swift

func generateCPF() -> String {
    
    var cpf = [0,0,0,0,0,0,0,0,0,0,0]
    var firstVerification = 0
    var secondVerification = 0
    
    for i in 0...8 {
        cpf[i] = (Int)(arc4random_uniform(9))
        firstVerification += cpf[i] * (10 - i)
        secondVerification += cpf[i] * (11 - i)
    }
    
    firstVerification %= 11
    cpf[9] = firstVerification < 2 ? 0 : 11 - firstVerification
    
    secondVerification += cpf[9] * 2
    secondVerification %= 11
    cpf[10] = secondVerification < 2 ? 0 : 11-secondVerification
    
    return "\(cpf[0])\(cpf[1])\(cpf[2])\(cpf[3])\(cpf[4])\(cpf[5])\(cpf[6])\(cpf[7])\(cpf[8])\(cpf[9])\(cpf[10])"
    
}