Update draft-ietf-scitt-architecture.md

ietf-wg-scitt · Jul 21, 2024 · d6283d6 · d6283d6
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Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/draft-ietf-scitt-architecture.md b/draft-ietf-scitt-architecture.md
@@ -486,7 +486,7 @@ At least one identifier for an identity document MUST be included in the protect
 Additionally, `x5chain` that corresponds to either `x5t` or `kid` identifying the leaf certificate in the included certification path MAY be included in the unprotected header of the COSE Envelope.
 
 - When using x.509 certificates, support for `x5t` is REQUIRED to implement.
-- Support for `kid` in the protected header and `x5chain` in the unprotected header is optional to implement.
+- Support for `kid` in the protected header and `x5chain` in the unprotected header is OPTIONAL to implement.
 
 When `x5t` is present, `iss` MUST be a string with a value between 1 and 8192 characters in length that fits the regular expression of a distinguished name.