PORT_Assert(signerinfo); if (!signerinfo) { PORT_SetError(SEC_ERROR_LIBRARY_FAILURE); return SEC_OID_UNKNOWN; }
NSS_CMSSignerInfo_GetDigestAlgTag(NSSCMSSignerInfo *signerinfo){    SECOidData *algdata;    algdata = SECOID_FindOID (&(signerinfo->digestAlg.algorithm));    if (algdata != NULL)	return algdata->offset;    else	return SEC_OID_UNKNOWN;}