func getKeyUsages()

in certViewer/cmd/web/certificates.go [241:284]

• 32 lines of code
• 10 McCabe index (conditional complexity)

func getKeyUsages(cert *x509.Certificate) []string {
	usage := make([]string, 0)
	keyUsage := cert.KeyUsage

	//calculate included keyUsage from bitmap
	//String values taken from OpenSSL

	if keyUsage&x509.KeyUsageDigitalSignature != 0 {
		usage = append(usage, "Digital Signature")
	}
	if keyUsage&x509.KeyUsageContentCommitment != 0 {
		usage = append(usage, "Non Repudiation")
	}

	if keyUsage&x509.KeyUsageKeyEncipherment != 0 {
		usage = append(usage, "Key Encipherment")
	}

	if keyUsage&x509.KeyUsageDataEncipherment != 0 {
		usage = append(usage, "Data Encipherment")
	}

	if keyUsage&x509.KeyUsageKeyAgreement != 0 {
		usage = append(usage, "Key Agreement")
	}

	if keyUsage&x509.KeyUsageCertSign != 0 {
		usage = append(usage, "Certificate Sign")
	}

	if keyUsage&x509.KeyUsageCRLSign != 0 {
		usage = append(usage, "CRL Sign")
	}

	if keyUsage&x509.KeyUsageEncipherOnly != 0 {
		usage = append(usage, "Encipher Only")
	}

	if keyUsage&x509.KeyUsageDecipherOnly != 0 {
		usage = append(usage, "Decipher Only")
	}

	return usage
}