Hello, I'm not able to find RFC, where is defined this attribute.
An example in Time Stamp Reply looks like that: --------------------------------------------------------------------------------- 523:d=7 hl=3 l= 179 cons: SEQUENCE 526:d=8 hl=2 l= 11 prim: OBJECT :id-smime-aa-signingCertificate 539:d=8 hl=3 l= 163 cons: SET 542:d=9 hl=3 l= 160 cons: SEQUENCE 545:d=10 hl=3 l= 157 cons: SEQUENCE 548:d=11 hl=3 l= 130 cons: SEQUENCE 551:d=12 hl=2 l= 20 prim: OCTET STRING [HEX DUMP]:1225953CB6C14917FC38188AA1326B5E476412D7 573:d=12 hl=2 l= 106 cons: SEQUENCE 575:d=13 hl=2 l= 99 cons: SEQUENCE 577:d=14 hl=2 l= 97 cons: cont [ 4 ] 579:d=15 hl=2 l= 95 cons: SEQUENCE 581:d=16 hl=2 l= 11 cons: SET 583:d=17 hl=2 l= 9 cons: SEQUENCE 585:d=18 hl=2 l= 3 prim: OBJECT :countryName 590:d=18 hl=2 l= 2 prim: PRINTABLESTRING :CZ 594:d=16 hl=2 l= 44 cons: SET 596:d=17 hl=2 l= 42 cons: SEQUENCE 598:d=18 hl=2 l= 3 prim: OBJECT :organizationName 603:d=18 hl=2 l= 35 prim: UTF8STRING :Česká pošta, s.p. [IČ 47114983] 640:d=16 hl=2 l= 34 cons: SET 642:d=17 hl=2 l= 32 cons: SEQUENCE 644:d=18 hl=2 l= 3 prim: OBJECT :commonName 649:d=18 hl=2 l= 25 prim: PRINTABLESTRING :PostSignum Qualified CA 2 676:d=13 hl=2 l= 3 prim: INTEGER :14C0B3 681:d=11 hl=2 l= 22 cons: SEQUENCE 683:d=12 hl=2 l= 20 prim: OCTET STRING [HEX DUMP]:3484C2150114E2C34964A34EC50AFDEECF67A109 ----------------------------------------------------- As you can see - this type of object is "SET" - not "SEQUENCE". in RFC2634 [Page 47] is defined : SigningCertificate ::= SEQUENCE { certs SEQUENCE OF ESSCertID, policies SEQUENCE OF PolicyInformation OPTIONAL } ESSCertID ::= SEQUENCE { certHash Hash, issuerSerial IssuerSerial OPTIONAL } => as you can see, the id-smime-aa-signingCertificate type of attribute seems to be SET (OF) SigningCertificate. I really need to find definition - syntax and SEMANTIC of this attribute (defined as SET). --kapetr ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager majord...@openssl.org