func (c CipherInfo) Pretty() string {
var colour func(string) string = nil
suffix := ""
if c.Kex.Broken || c.Auth.Broken || c.Cipher.Broken || c.MAC.Broken {
colour = tc.Red
suffix = " INSECURE"
} else if c.Cipher.KeySize < 128 || c.MAC.TagSize < 160 {
colour = tc.Yellow
suffix = " WEAK"
}
pad := " "
fs := tc.Yellow("no FS")
if c.Kex.ForwardSecure {
fs = tc.Green(" FS ")
}
aead := " "
if c.MAC.AEAD {
aead = "AEAD"
}
cstr := fmt.Sprintf("%3d", c.Cipher.KeySize)
if colour == nil && c.Kex.ForwardSecure && c.Cipher.KeySize >= 128 && c.MAC.AEAD {
colour = tc.Green
}
if colour == nil {
colour = func(s string) string {
return s
}
}
return fmt.Sprintf("%s%s %s %s %s%s", colour(c.Name), pad[len(c.Name)%len(pad):], fs, colour(cstr), colour(aead), colour(suffix))
}
func main() {
fmt.Printf("System colours:\n")
fmt.Printf("%s %s\n", tc.Black("Black"), tc.Bblack("Bright Black"))
fmt.Printf("%s %s\n", tc.Blue("Blue"), tc.Bblue("Bright Blue"))
fmt.Printf("%s %s\n", tc.Green("Green"), tc.Bgreen("Bright Green"))
fmt.Printf("%s %s\n", tc.Cyan("Cyan"), tc.Bcyan("Bright Cyan"))
fmt.Printf("%s %s\n", tc.Red("Red"), tc.Bred("Bright Red"))
fmt.Printf("%s %s\n", tc.Purple("Purple"), tc.Bpurple("Bright Purple"))
fmt.Printf("%s %s\n", tc.Yellow("Yellow"), tc.Byellow("Bright Yellow"))
fmt.Printf("%s %s\n", tc.White("White"), tc.Bwhite("Bright White"))
fmt.Printf("\n 256ish colour cube\n")
fmt.Print("4-bit palette: ")
for i := 0; i < 16; i++ {
fmt.Print(tc.Foreground8(tc.C256(i), "::"))
}
fmt.Print("\n ")
for i := 0; i < 16; i++ {
fmt.Print(tc.Background8(tc.C256(i), " "))
}
fmt.Print("\n")
for r0 := 0; r0 < 6; r0 += 3 {
for g := 0; g < 6; g++ {
for r := 0; r < 3; r++ {
for b := 0; b < 6; b++ {
c := tc.Colour256(r+r0, g, b)
fmt.Print(tc.Foreground8(c, "::"))
}
fmt.Print(" ")
}
fmt.Print(" ")
for r := 0; r < 3; r++ {
for b := 0; b < 6; b++ {
c := tc.Colour256(r+r0, g, b)
fmt.Print(tc.Background8(c, " "))
}
fmt.Print(" ")
}
fmt.Print("\n")
}
fmt.Print("\n")
}
fmt.Print("4.5-bit greyscale ramp: ")
for i := 232; i < 256; i++ {
fmt.Print(tc.Foreground8(tc.C256(i), "::"))
}
fmt.Print("\n ")
for i := 232; i < 256; i++ {
fmt.Print(tc.Background8(tc.C256(i), " "))
}
fmt.Print("\n")
}