Re: Correct definition of ContentInfo in CMS-10

["Ross demon" <[e-mail]>]

Peter,

When using detached signatures, I agree that the eContent is absent, but the
content is still required to convey the SignedData and hence the signature.
-----Original Message-----
From: Peter Gutmann <[e-mail]>
To: [e-mail] <[e-mail]>; [e-mail]
<[e-mail]>
Date: Monday, February 22, 1999 3:04 PM
Subject: Re: Correct definition of ContentInfo in CMS-10


>>>Within the body of CMS 10 ContentInfo is defined as : -
>>>
>>>ContentInfo ::= SEQUENCE {
>>>        contentType ContentType,
>>>        content [0] EXPLICIT ANY DEFINED BY contentType }
>>>
>>>However, in the appendix ContentInfo is defined as : -
>>>
>>>ContentInfo ::= SEQUENCE {
>>>     contentType ContentType,
>>>     content [0] EXPLICIT ANY DEFINED BY contentType OPTIONAL }
>>>
>>>I assume the one within the body (i.e. content not optional) is correct.
>
>>I assume that content is not optional
>
>The content is optional.  Think about how detached sigs work.
>
>Peter.
>