Is there a way for application to create updates of NetworkKey and ApplicationKey for

Hi, Yes, it is possible. For that you have to send <a href="https://github.com/Nor

You may find some info here: <a class="issue-link js-issue-link" data-error-text="Fail

<a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/us

Update Network and Application key at start of KeyUpdate about ios-nrf-mesh-library HOT 5 CLOSED

eanderlind commented on September 2, 2024

Update Network and Application key at start of KeyUpdate

from ios-nrf-mesh-library.

Comments (5)

philips77 commented on September 2, 2024

Hi,
Yes, it is possible. For that you have to send ConfigNetKeyUpdate or ConfigAppKeyUpdate message to [local Node](

IOS-nRF-Mesh-Library/nRFMeshProvision/Classes/MeshNetworkManager.swift

Line 643 in 78b532d

func sendToLocalNode(_ message: ConfigMessage) throws -> MessageHandle {

, just like to any other Node.

The message will be handled here:

IOS-nRF-Mesh-Library/nRFMeshProvision/Classes/Layers/Foundation Layer/ConfigurationServerHandler.swift

Lines 139 to 145 in 78b532d

 if networkKey.phase == .normalOperation { 

 // Update the key data (observer will set the `oldKey` automatically). 

 networkKey.key = request.key 

 // And mark the key in the local Node as updated. 

 localNode.update(networkKeyWithIndex: keyIndex) 

 } 

 return ConfigNetKeyStatus(confirm: networkKey)

Setting the key in line 141 does the following:

IOS-nRF-Mesh-Library/nRFMeshProvision/Classes/Mesh Model/NetworkKey.swift

Lines 94 to 104 in 78b532d

 public internal(set) var key: Data { 

 willSet { 

 oldKey = key 

 oldNetworkId = networkId 

 oldKeys = keys 

 } 

 didSet { 

 phase = .keyDistribution 

 regenerateKeyDerivatives() 

 } 

 }

The update(networkKeyWithIndex sets the updated flag in the Node's key list:

IOS-nRF-Mesh-Library/nRFMeshProvision/Classes/Mesh Model/Node.swift

Lines 748 to 756 in 78b532d

 /// Marks the Network Key in the Node as updated. 

 /// 

 /// - parameter networkKeyIndex: The Network Key index to add. 

 func update(networkKeyWithIndex networkKeyIndex: KeyIndex) { 

 if let key = netKeys[networkKeyIndex] { 

 key.updated = true 

 meshNetwork?.timestamp = Date() 

 } 

 }

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philips77 commented on September 2, 2024

You may find some info here: #314

from ios-nrf-mesh-library.

eanderlind commented on September 2, 2024

Thanks - that explains the 2nd half of the process. The remaining part is how to instantiate the two messages with the new key. Looks like only way is to generate a newkey bytestring and then hand craft a msg using the ConfigNetKeyUpdate(parameters:Data) initializer.

IOS-nRF-Mesh-Library/nRFMeshProvision/Classes/Mesh Messages/Foundation/Configuration/ConfigNetKeyUpdate.swift

Line 50 in 78b532d

public init?(parameters: Data) {

Not intuitive, but we will try it out... Thanks. Closing the issue since there is a workaround.

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philips77 commented on September 2, 2024

Great that you pointed it out. That needs improvement. I'll fix it in the next (big!) release.

from ios-nrf-mesh-library.

philips77 commented on September 2, 2024

@eanderlind I fixed the API. The 2 config messages now allow to pass the new key as Data.

from ios-nrf-mesh-library.

Update Network and Application key at start of KeyUpdate about ios-nrf-mesh-library HOT 5 CLOSED

Comments (5)

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	if networkKey.phase == .normalOperation {
	// Update the key data (observer will set the `oldKey` automatically).
	networkKey.key = request.key
	// And mark the key in the local Node as updated.
	localNode.update(networkKeyWithIndex: keyIndex)
	}
	return ConfigNetKeyStatus(confirm: networkKey)

	public internal(set) var key: Data {
	willSet {
	oldKey = key
	oldNetworkId = networkId
	oldKeys = keys
	}
	didSet {
	phase = .keyDistribution
	regenerateKeyDerivatives()
	}
	}

	/// Marks the Network Key in the Node as updated.
	///
	/// - parameter networkKeyIndex: The Network Key index to add.
	func update(networkKeyWithIndex networkKeyIndex: KeyIndex) {
	if let key = netKeys[networkKeyIndex] {
	key.updated = true
	meshNetwork?.timestamp = Date()
	}
	}