!!! Overview
[{$pagename}] is a [Certificate] [Basic Constraint] defined in [RFC 5280] a [boolean] indicates whether the certified [Public Key] may be used to verify [Certificate Signatures].  

If the [{$pagename}] [boolean] is not asserted, then the [keyCertSign] [bit] in the [KeyUsage] extension [MUST NOT] be  asserted.  If the [Basic Constraints|BasicConstraints] extension is not present in a version 3 [certificate], or the extension is present but the [{$pagename}] boolean is __NOT__ asserted, then the certified [Public Key] [MUST NOT] be used to verify [Certificate Signatures].

!! More Information
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[{ReferringPagesPlugin before='*' after='\n' }]