Jim Schaad presented a concern about the algorithm flexibility of the
ESSCertID field. Right now this field is limited to the use of the SHA-1
algorithm, and Jim proposed the addition of an AlgorithmIdentifier to
indicate the digest algorithm used to prepare the digest.
OtherSigningCertificate, as defined in RFC 3126, could be used for that purpose
id-aa-ets-otherSigCert OBJECT IDENTIFIER ::=
{ iso(1) member-body(2) us(840) rsadsi(113549) pkcs(1) pkcs9(9)
smime(16) id-aa(2) 19 }
RFC 3126 was anticipating the need to use other algorithms.
Denis