fromIssuerSignedItem
Input for digest calculation is this structure: IssuerSignedItemBytes = #6.24(bstr .cbor IssuerSignedItem)
See ISO/IEC 18013-5:2021, 9.1.2.5 Message digest function
Input for digest calculation is this structure: IssuerSignedItemBytes = #6.24(bstr .cbor IssuerSignedItem)
See ISO/IEC 18013-5:2021, 9.1.2.5 Message digest function