encodeExtension

encodeExtension

Encode a single X.509 Extension SEQUENCE (OID + optional critical BOOLEAN + OCTET STRING).

function encodeExtension(
	oid: string,
	extnValue: Uint8Array,
	critical: boolean,
): Uint8Array

Parameters

• oid: string — Dotted-decimal extension OID.
• extnValue: Uint8Array — DER-encoded extension payload.
• critical: boolean — Whether to mark the extension as critical. Default false.