hi,
i am coding CMS ( RFC3380 ) and i was parsing example 5.2 at
draft-ietf-smime-examples-10.txt and got to the Certificate part.
i like to know why it is SEQUENCE ( in the example ) and not SET OF (as
like in the CMS RFC3380 ).
This is how it is defined in the RFC :
SignedData ::= SEQUENCE {
version CMSVersion,
digestAlgorithms DigestAlgorithmIdentifiers,
encapContentInfo EncapsulatedContentInfo,
certificates [0] IMPLICIT CertificateSet OPTIONAL,
crls [1] IMPLICIT CertificateRevocationLists OPTIONAL,
signerInfos SignerInfos }
CertificateSet ::= SET OF CertificateChoices
in draft-ietf-smime-examples-10.txt ex5.2 Basic signed content it is :
-------------------- Content Info -----------------------
-
0 30 850: SEQUENCE {
-------------------- Content Type -----------------------
4 06 9: OBJECT IDENTIFIER signedData (1 2 840 113549 1 7 2)
: (PKCS #7)
------ content [0] EXPLICIT ANY DEFINED BY contentType ---------
15 A0 835: [0] {
--------------------- SignedData -------------------------------
----
19 30 831: SEQUENCE {
-------------------- version ----------------------------------
23 02 1: INTEGER 1
-------------------- digestAlgorithems -------------------------
26 31 11: SET {
28 30 9: SEQUENCE {
30 06 5: OBJECT IDENTIFIER sha1 (1 3 14 3 2 26)
: (OIW)
37 05 0: NULL
: }
----------------------------------------------------------------
: }
-------------------------- encapsulated Content ----------------
39 30 43: SEQUENCE {
41 06 9: OBJECT IDENTIFIER data (1 2 840 113549 1 7 1)
: (PKCS #7)
52 A0 30: [0] {
54 04 28: OCTET STRING 'This is some sample content.'
: }
: }
-------------- The start of the Certificate -------------------
84 A0 560: [0] {
88 30 556: SEQUENCE { <------ why not SET !!! ? ? ? ?
92 30 405: SEQUENCE {
96 A0 3: [0] {
98 02 1: INTEGER 2
: }
101 02 16: INTEGER
: 46 34 6B C7 80 00 56 BC 11 D3 6E 2E
: C4 10 B3 B0
119 30 13: SEQUENCE {
121 06 9: OBJECT IDENTIFIER
: sha1withRSAEncryption
: (1 2 840 113549 1 1 5)
: (PKCS #1)
132 05 0: NULL
: }
134 30 18: SEQUENCE {
136 31 16: SET {
138 30 14: SEQUENCE {
140 06 3: OBJECT IDENTIFIER