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CIDFINMA_spec_Z.zed16
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CIDFINMA_spec_Z.zed16
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Client Identifying Data (CID) Requirements Specification for banks in Switzerland
Language: Z Notation
Developed By Serge (Siarhei Vinahradau, [email protected]
Specification, further referred to as FINMA:
https://www.finma.ch/de/~/media/finma/dokumente/rundschreiben-archiv/finma-rs200821---30-06-2017.pdf
Specification requirements:
-CID data classification (FINMA 10*)
DATACATEGORY
CIDCATEGORIES
METADATA
- CID data owner (FINMA 13*)
ENTITY
DOMAIN
- all nodes with CID data stored should be recorded (FINMA 15*)
CIDSTORINGNODESAUDITLOG
- CID protection risks are country specific (FINMA 20*)
COUNTRY
- no node outside Switzerland should have unprotected CID data stored (FINMA 20*)
CONTENT
NODE
AddNodeData
- CID data accessed by users from outside Switzerland has to be protected (FINMA 20*)
AccesNodeData
- role and function based authorisation system in place (FINMA 22*)
ROLE
USER
DOMAIN
- List of users with bulk CID access (FINMA 34*)
BulkCIDAccessUsersList
- logs for bulk CID access (FINMA 40*)
CIDBULKLOG
- an internal employee has to be responsible for the compliance of outsourced CID activities (FINMA 50*)
DOMAIN
USER
AddUser
AddInternalUser
AddExternalUser
─
DATACATEGORY ::= DIRECT | INDIRECT | POTENTIALLYDIRECT | PROTECTED | NONCID
CIDCATEGORIES == {DIRECT, INDIRECT, POTENTIALLYDIRECT}
COUNTRY ::= SWITZERLAND | UK | USA | GERMANY
METADATA ::= CUSTOMERNAME | CUSTOMERADDRESS | ISVIPCUSTOMER
CONTENT ::= MUSTERMANN | SEESTRASSE | YES | NO | XXXXX
ENTITY ::= ENTITY1 | ENTITY2 | ENTITY3
USER ::= USER1 | USER2 | USER3
ROLE ::= ROLEGUICIDUSER | ROLEGUIUSER | ROLEBULKCID | ROLEBULK | ROLE1
CIDROLES == {ROLEGUICIDUSER, ROLEBULKCID}
NODEID ::= NODE1 | NODE2 | NODE3
└
┌ NODE
nodeId: NODEID
nodeCountry: COUNTRY
nodeDataCategories: METADATA ⇸ DATACATEGORY
nodeDataContents: METADATA ⇸ CONTENT
nodeMetadata: ℙ METADATA
nodeContentsMetadata: ℙ METADATA
|
nodeCountry = SWITZERLAND ∨ (∀ c : ran nodeDataCategories ⦁ c ∉ CIDCATEGORIES)
dom nodeDataContents ⊆ dom nodeDataCategories
nodeMetadata = dom nodeDataCategories
nodeContentsMetadata = dom nodeDataContents
└
┌ DOMAIN
dataClassification: METADATA ⇸ DATACATEGORY
dataOwner: METADATA ⇸ ENTITY
roles: ROLE ↔ METADATA
userAccessRigths: USER ↔ ROLE
teams: ENTITY ↔ USER
internalUsers: ℙ USER
externalUsers: ℙ USER
classificationMetadata: ℙ METADATA
dataOwnerMetadata: ℙ METADATA
rolesRoles: ℙ ROLE
teamsTeams: ℙ ENTITY
|
∀ u : USER ⦁ ¬(u ∈ internalUsers ∧ u ∈ externalUsers)
∀ u : dom userAccessRigths ⦁ u ∈ ran teams
∀ u : dom userAccessRigths ⦁ u ∈ internalUsers ∨ u ∈ externalUsers
∀ u : externalUsers ⦁ ¬(userAccessRigths⦇{u}⦈ ∩ CIDROLES ≠ ∅ ∧ teams⦇dom (teams ▷ {u})⦈ ∩ internalUsers = ∅)
classificationMetadata = dom dataClassification
dataOwnerMetadata = dom dataOwner
rolesRoles = dom roles
dom dataClassification ⊆ dom dataOwner
teamsTeams = dom teams
#(dom dataClassification) < 6
#(dom dataOwner) < 6
└
┌ CIDSTORINGNODESAUDITLOG
cidStoringNodesIds: ℙ NODEID
NODE
|
#(cidStoringNodesIds) < 6
∀ cidDataCategory : ran nodeDataCategories ⦁
cidDataCategory ∈ CIDCATEGORIES ⇒ nodeId ∈ cidStoringNodesIds
└
┌ CIDBULKLOG
cidBulkAccess: USER ↔ NODEID
cidBulkAccessUsers: ℙ USER
|
cidBulkAccessUsers = dom cidBulkAccess
#(cidBulkAccess) < 6
└
┌ InitDomain
DOMAIN ′
NODE ′
CIDSTORINGNODESAUDITLOG ′
CIDBULKLOG ′
|
dataOwnerMetadata′ = ∅
classificationMetadata′ = ∅
userAccessRigths′ = ∅
teams′ = ∅
internalUsers′ = ∅
externalUsers′ = ∅
nodeMetadata′ = ∅
cidStoringNodesIds′ = ∅
nodeId′ = NODE1
cidBulkAccess′ = ∅
└
┌ AddRole
ΔDOMAIN
role?: ROLE
metadata?: METADATA
|
roles′ = roles ∪ {(role?, metadata?)}
dataClassification′ = dataClassification
teams′ = teams
internalUsers′ = internalUsers
externalUsers′ = externalUsers
dataOwner′ = dataOwner
userAccessRigths′ = userAccessRigths
└
┌ AddUser
ΔDOMAIN
user?: USER
entity?: ENTITY
|
teams′ = teams ∪ {(entity?, user?)}
userAccessRigths′ = userAccessRigths
roles′ = roles
internalUsers′ = internalUsers
externalUsers′ = externalUsers
dataClassification′ = dataClassification
dataOwner′ = dataOwner
└
┌ AddExternalUser
ΔDOMAIN
user?: USER
|
externalUsers′ = externalUsers ∪ {user?}
internalUsers′ = internalUsers
teams′ = teams
userAccessRigths′ = userAccessRigths
roles′ = roles
dataClassification′ = dataClassification
dataOwner′ = dataOwner
└
┌ AddInternalUser
ΔDOMAIN
user?: USER
|
internalUsers′ = internalUsers ∪ {user?}
externalUsers′ = externalUsers
teams′ = teams
userAccessRigths′ = userAccessRigths
roles′ = roles
dataClassification′ = dataClassification
dataOwner′ = dataOwner
└
┌ AddUserAccessRight
ΔDOMAIN
user?: USER
role?: ROLE
|
userAccessRigths′ = userAccessRigths ∪ {(user?, role?)}
teams′ = teams
internalUsers′ = internalUsers
externalUsers′ = externalUsers
roles′ = roles
dataClassification′ = dataClassification
dataOwner′ = dataOwner
└
┌ RemoveUserAccessRight
ΔDOMAIN
user?: USER
role?: ROLE
|
userAccessRigths′ = userAccessRigths ∖ {(user?, role?)}
roles′ = roles
teams′ = teams
internalUsers′ = internalUsers
externalUsers′ = externalUsers
dataClassification′ = dataClassification
dataOwner′ = dataOwner
└
┌ AddNodeData
ΔNODE
ΔCIDSTORINGNODESAUDITLOG
ΞDOMAIN
nodeIdInput?: NODEID
nodeCountryInput?: COUNTRY
nodeMetadataInput?: METADATA
nodeDataContentInput?: CONTENT
|
nodeCountry′ = nodeCountryInput?
∧ nodeId′ = nodeIdInput?
∧
(
(nodeCountryInput? = SWITZERLAND ∧ (dataClassification nodeMetadataInput?) ∈ CIDCATEGORIES
∧ cidStoringNodesIds′ = cidStoringNodesIds ∪ {nodeIdInput?}
∧ nodeDataContents′ = nodeDataContents ⊕ {nodeMetadataInput? ↦ nodeDataContentInput?}
∧ nodeDataCategories′ = nodeDataCategories ⊕ {nodeMetadataInput? ↦ (dataClassification nodeMetadataInput?)})
∨
((dataClassification nodeMetadataInput?) ∉ CIDCATEGORIES
∧ cidStoringNodesIds′ = cidStoringNodesIds
∧ nodeDataContents′ = nodeDataContents ⊕ {nodeMetadataInput? ↦ nodeDataContentInput?}
∧ nodeDataCategories′ = nodeDataCategories ⊕ {nodeMetadataInput? ↦ (dataClassification nodeMetadataInput?)})
∨
(nodeCountryInput? ≠ SWITZERLAND ∧ (dataClassification nodeMetadataInput?) ∈ CIDCATEGORIES
∧ cidStoringNodesIds′ = cidStoringNodesIds
∧nodeDataContents′ = nodeDataContents ⊕ {nodeMetadataInput? ↦ XXXXX}
∧nodeDataCategories′ = nodeDataCategories ⊕ {nodeMetadataInput? ↦ PROTECTED})
)
└
┌ AccessNode
ΞNODE
ΞDOMAIN
user?: USER
userCountry?: COUNTRY
nodeId?: NODEID
accessNodeMetadata?: METADATA
contentOutput!: ℙ CONTENT
|
nodeId? = nodeId
∧
accessNodeMetadata? ∈ roles⦇(userAccessRigths⦇{user?}⦈)⦈
∧
(
(nodeDataCategories⦇{accessNodeMetadata?}⦈ ⊆ CIDCATEGORIES ∧ userCountry? ≠ SWITZERLAND
∧ contentOutput! = {XXXXX})
∨
((nodeDataCategories⦇{accessNodeMetadata?}⦈ ∩ CIDCATEGORIES = ∅ ∨ userCountry? = SWITZERLAND)
∧ contentOutput! = nodeDataContents⦇{accessNodeMetadata?}⦈)
)
└
┌ AccessBulk
ΞDOMAIN
ΞNODE
ΔCIDBULKLOG
user?: USER
nodeId?: NODEID
userCountry?: COUNTRY
contentOutput!: ℙ CONTENT
|
(
ROLEBULKCID ∈ userAccessRigths⦇{user?}⦈
∧ userCountry? = SWITZERLAND
∧ ran nodeDataCategories ∩ CIDCATEGORIES ≠ ∅
∧cidBulkAccess′ = cidBulkAccess ∩ {(user?, nodeId?)}
∧ contentOutput! = ran nodeDataContents
∧ nodeId? = nodeId
)
∨
(
(ROLEBULK ∈ userAccessRigths⦇{user?}⦈ ∨ ROLEBULKCID ∈ userAccessRigths⦇{user?}⦈)
∧ cidBulkAccess′ = cidBulkAccess
∧ ran nodeDataCategories ∩ CIDCATEGORIES = ∅
∧ contentOutput! = ran nodeDataContents
∧ nodeId? = nodeId
)
└
┌ AssignDataOwner
ΔDOMAIN
metadata?: METADATA
dataOwnerInput?: ENTITY
|
dataOwner′ = dataOwner ⊕ {metadata? ↦ dataOwnerInput?}
roles′ = roles
userAccessRigths′ = userAccessRigths
└
┌ ClassifyDataCategory
ΔDOMAIN
metadata?: METADATA
dataCategory?: DATACATEGORY
|
dataClassification′ = dataClassification ⊕ {metadata? ↦ dataCategory?}
roles′ = roles
userAccessRigths′ = userAccessRigths
└
─
ImplementDataClassification == AssignDataOwner ∧ ClassifyDataCategory
└
┌ RecycleData
ΔDOMAIN
metadata?: METADATA
|
metadata? ∈ dataOwnerMetadata
metadata? ∈ classificationMetadata
dataClassification′ = {metadata?} ⩤ dataClassification
dataOwner′ = {metadata?} ⩤ dataOwner
roles′ = roles
teams′ = teams
userAccessRigths′ = userAccessRigths
└
┌ BulkCIDAccessUsersList
ΞDOMAIN
ΞNODE
BulkCIDAccessUsersList!: ℙ USER
|
BulkCIDAccessUsersList! = dom (userAccessRigths ▷ {ROLEBULKCID})
└