func()

in image/verify.go [143:170]

• 23 lines of code
• 7 McCabe index (conditional complexity)

func (img *Image) VerifySigs(keys []sec.PubSignKey) (int, error) {
	sigs, err := img.CollectSigs()
	if err != nil {
		return -1, err
	}

	if len(sigs) == 0 {
		return -1, nil
	}

	hash, err := img.Hash()
	if err != nil {
		return -1, err
	}

	for keyIdx, k := range keys {
		sigIdx, err := sec.VerifySigs(k, sigs, hash)
		if err != nil {
			return -1, err
		}

		if sigIdx != -1 {
			return keyIdx, nil
		}
	}

	return -1, errors.Errorf("image signatures do not match provided keys")
}