🤗 [Question]: JA3

[Bagerter]

Question Description

Hello, help pls, how to get ja3 client hash?

Code Snippet (optional)

No response

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• [X] I have checked for existing issues that describe my questions prior to opening this one.
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[Bagerter]

Fixed

func Middleware() fiber.Handler {
    return func(c *fiber.Ctx) error {
        ja3Hash, err := generateJA3Hash(c)
        if err != nil {
            fmt.Println("error get ja3")
        }

        fmt.Println(ja3Hash)
        return c.Next()
    }
}

func generateJA3Hash(c *fiber.Ctx) (string, error) {
    tlsInfo := c.ClientHelloInfo()
    if tlsInfo == nil {
        return "", fmt.Errorf("eror")
    }

    var fingerprint string

    for _, suite := range tlsInfo.CipherSuites[1:] {
        fingerprint += fmt.Sprintf("0x%x,", suite)
    }

    for _, curve := range tlsInfo.SupportedCurves[1:] {
        fingerprint += fmt.Sprintf("0x%x,", curve)
    }

    for _, point := range tlsInfo.SupportedPoints[1:] {
        fingerprint += fmt.Sprintf("0x%x,", point)
    }

    return fingerprint, nil
}