Hi!

I am facing some problems with a SMIME where the content is binary encoded AND a linefeed (LF) (0x0a) is used for line-separator. The CMS_verify failes (CMS routines:CMS_SignerInfo_verify_content:verification failure).


It works fine if CRLF (0x0d 0x0a) is line-separator or even if only CR is used - but not with LF only.
It is also ok if the content is not in binary but base64 encoded.

I tried with and without CMS_BINARY flag set.

I think it is about the canonicalization of MIME if the content is not base64.

Is OpenSSL doing this canonicalization (where?).

I think CMS_BINARY should disable it - I tried to change any LF to CRLF before the verify but that did not help.

Any ideas?

Thanks!
Chris

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