2. Requirements Language

この節では unsigned X.509 certificates の RFC テキストを保持し, id-alg-unsigned, id-rdna-unsigned, zero-length signatureValue, issuer handling, extension guidance, validation rules, IANA registrations, ASN.1 module を扱う.

RFC 原文

2.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.