encodeStaticAuthData
Helper to encode digest-id mapping and issuerAuth CBOR into a single byte array.
The resulting byte array can be stored as staticAuthData using storeStaticAuthenticationData and returned using getStaticAuthenticationData at presentation time.
Use decodeStaticAuthData for the reverse operation.
The returned data are the bytes of CBOR with the following CDDL:
StaticAuthData = {
"digestIdMapping": DigestIdMapping,
"issuerAuth" : IssuerAuth
}
DigestIdMapping = {
NameSpace => [ + IssuerSignedItemBytes ]
}
; Defined in ISO 18013-5
;
NameSpace = String
DataElementIdentifier = String
DigestID = uint
IssuerAuth = COSE_Sign1 ; The payload is MobileSecurityObjectBytes
IssuerSignedItemBytes = #6.24(bstr .cbor IssuerSignedItem)
IssuerSignedItem = {
"digestID" : uint, ; Digest ID for issuer data auth
"random" : bstr, ; Random value for issuer data auth
"elementIdentifier" : DataElementIdentifier, ; Data element identifier
"elementValue" : NULL ; Placeholder for Data element value
}
Note that the the byte[] arrays returned in the list of map values are the bytes of IssuerSignedItem, not IssuerSignedItemBytes.
Return
the bytes of the CBOR described above.
Parameters
A mapping from namespaces into a list of the bytes of IssuerSignedItem (not tagged). The elementValue key must be present and set to the NULL value.
The bytes of COSE_Sign1 signed by the issuing authority and where the payload is set to bytes of MobileSecurityObjectBytes.