fromIssuerSignedItem
fun fromIssuerSignedItem(value: IssuerSignedItem, namespace: String, digest: Digest = Digest.SHA256): ValueDigest(source)
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