func()

in ietf-cms/protocol/protocol.go [527:537]

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

func (si SignerInfo) GetMessageDigestAttribute() ([]byte, error) {
	rv, err := si.SignedAttrs.GetOnlyAttributeValueBytes(oid.AttributeMessageDigest)
	if err != nil {
		return nil, err
	}
	if rv.Class != asn1.ClassUniversal || rv.Tag != asn1.TagOctetString {
		return nil, ASN1Error{"bad class or tag"}
	}

	return rv.Bytes, nil
}