diff --git a/api/firmware/device.go b/api/firmware/device.go
index 6c2bc4b..2408507 100644
--- a/api/firmware/device.go
+++ b/api/firmware/device.go
@@ -120,6 +120,9 @@ type DeviceInfo struct {
 	SecurechipModel string `json:"securechipModel"`
 	// Available on Bluetooth-enabled devices, Will be `nil` otherwise.
 	Bluetooth *BluetoothInfo `json:"bluetooth"`
+	// This information is only available since firmwae v9.25.0. Will be an empty string for older
+	// firmware versions.
+	PasswordStretchingAlgo string `json:"passwordStretchingAlgo"`
 }
 
 // NewDevice creates a new instance of Device.
diff --git a/api/firmware/messages/antiklepto.pb.go b/api/firmware/messages/antiklepto.pb.go
index 73facf1..9b0c918 100644
--- a/api/firmware/messages/antiklepto.pb.go
+++ b/api/firmware/messages/antiklepto.pb.go
@@ -1,21 +1,9 @@
-// Copyright 2020 Shift Crypto AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: antiklepto.proto
 
 package messages
diff --git a/api/firmware/messages/antiklepto.proto b/api/firmware/messages/antiklepto.proto
index be51c41..b7829f3 100644
--- a/api/firmware/messages/antiklepto.proto
+++ b/api/firmware/messages/antiklepto.proto
@@ -1,16 +1,4 @@
-// Copyright 2020 Shift Crypto AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 syntax = "proto3";
 package shiftcrypto.bitbox02;
diff --git a/api/firmware/messages/backup_commands.pb.go b/api/firmware/messages/backup_commands.pb.go
index 4258e2e..8ba9ceb 100644
--- a/api/firmware/messages/backup_commands.pb.go
+++ b/api/firmware/messages/backup_commands.pb.go
@@ -1,23 +1,11 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // This file is named backup_commands to avoid conflicting header files with top-most backup.proto
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: backup_commands.proto
 
 package messages
diff --git a/api/firmware/messages/backup_commands.proto b/api/firmware/messages/backup_commands.proto
index 3fd10a9..2fbb73a 100644
--- a/api/firmware/messages/backup_commands.proto
+++ b/api/firmware/messages/backup_commands.proto
@@ -1,16 +1,4 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // This file is named backup_commands to avoid conflicting header files with top-most backup.proto
 
diff --git a/api/firmware/messages/bitbox02_system.pb.go b/api/firmware/messages/bitbox02_system.pb.go
index 4087bfc..259d20b 100644
--- a/api/firmware/messages/bitbox02_system.pb.go
+++ b/api/firmware/messages/bitbox02_system.pb.go
@@ -1,21 +1,9 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: bitbox02_system.proto
 
 package messages
@@ -204,12 +192,15 @@ type DeviceInfoResponse struct {
 	Version                      string                 `protobuf:"bytes,3,opt,name=version,proto3" json:"version,omitempty"`
 	MnemonicPassphraseEnabled    bool                   `protobuf:"varint,4,opt,name=mnemonic_passphrase_enabled,json=mnemonicPassphraseEnabled,proto3" json:"mnemonic_passphrase_enabled,omitempty"`
 	MonotonicIncrementsRemaining uint32                 `protobuf:"varint,5,opt,name=monotonic_increments_remaining,json=monotonicIncrementsRemaining,proto3" json:"monotonic_increments_remaining,omitempty"`
-	// From v9.6.0: "ATECC608A" or "ATECC608B".
+	// From v9.6.0: "ATECC608A" or "ATECC608B" or "OPTIGA_TRUST_M_V3".
 	SecurechipModel string `protobuf:"bytes,6,opt,name=securechip_model,json=securechipModel,proto3" json:"securechip_model,omitempty"`
 	// Only present in Bluetooth-enabled devices.
-	Bluetooth     *DeviceInfoResponse_Bluetooth `protobuf:"bytes,7,opt,name=bluetooth,proto3,oneof" json:"bluetooth,omitempty"`
-	unknownFields protoimpl.UnknownFields
-	sizeCache     protoimpl.SizeCache
+	Bluetooth *DeviceInfoResponse_Bluetooth `protobuf:"bytes,7,opt,name=bluetooth,proto3,oneof" json:"bluetooth,omitempty"`
+	// From v9.25.0. This together with `securechip_model` determines the password stretching
+	// algorithm.
+	PasswordStretchingAlgo string `protobuf:"bytes,8,opt,name=password_stretching_algo,json=passwordStretchingAlgo,proto3" json:"password_stretching_algo,omitempty"`
+	unknownFields          protoimpl.UnknownFields
+	sizeCache              protoimpl.SizeCache
 }
 
 func (x *DeviceInfoResponse) Reset() {
@@ -291,6 +282,13 @@ func (x *DeviceInfoResponse) GetBluetooth() *DeviceInfoResponse_Bluetooth {
 	return nil
 }
 
+func (x *DeviceInfoResponse) GetPasswordStretchingAlgo() string {
+	if x != nil {
+		return x.PasswordStretchingAlgo
+	}
+	return ""
+}
+
 type InsertRemoveSDCardRequest struct {
 	state         protoimpl.MessageState                 `protogen:"open.v1"`
 	Action        InsertRemoveSDCardRequest_SDCardAction `protobuf:"varint,1,opt,name=action,proto3,enum=shiftcrypto.bitbox02.InsertRemoveSDCardRequest_SDCardAction" json:"action,omitempty"`
@@ -610,7 +608,7 @@ const file_bitbox02_system_proto_rawDesc = "" +
 	"\x12CheckSDCardRequest\"1\n" +
 	"\x13CheckSDCardResponse\x12\x1a\n" +
 	"\binserted\x18\x01 \x01(\bR\binserted\"\x13\n" +
-	"\x11DeviceInfoRequest\"\xf1\x03\n" +
+	"\x11DeviceInfoRequest\"\xab\x04\n" +
 	"\x12DeviceInfoResponse\x12\x12\n" +
 	"\x04name\x18\x01 \x01(\tR\x04name\x12 \n" +
 	"\vinitialized\x18\x02 \x01(\bR\vinitialized\x12\x18\n" +
@@ -618,7 +616,8 @@ const file_bitbox02_system_proto_rawDesc = "" +
 	"\x1bmnemonic_passphrase_enabled\x18\x04 \x01(\bR\x19mnemonicPassphraseEnabled\x12D\n" +
 	"\x1emonotonic_increments_remaining\x18\x05 \x01(\rR\x1cmonotonicIncrementsRemaining\x12)\n" +
 	"\x10securechip_model\x18\x06 \x01(\tR\x0fsecurechipModel\x12U\n" +
-	"\tbluetooth\x18\a \x01(\v22.shiftcrypto.bitbox02.DeviceInfoResponse.BluetoothH\x00R\tbluetooth\x88\x01\x01\x1au\n" +
+	"\tbluetooth\x18\a \x01(\v22.shiftcrypto.bitbox02.DeviceInfoResponse.BluetoothH\x00R\tbluetooth\x88\x01\x01\x128\n" +
+	"\x18password_stretching_algo\x18\b \x01(\tR\x16passwordStretchingAlgo\x1au\n" +
 	"\tBluetooth\x12#\n" +
 	"\rfirmware_hash\x18\x01 \x01(\fR\ffirmwareHash\x12)\n" +
 	"\x10firmware_version\x18\x02 \x01(\tR\x0ffirmwareVersion\x12\x18\n" +
diff --git a/api/firmware/messages/bitbox02_system.proto b/api/firmware/messages/bitbox02_system.proto
index aef431f..463e689 100644
--- a/api/firmware/messages/bitbox02_system.proto
+++ b/api/firmware/messages/bitbox02_system.proto
@@ -1,16 +1,4 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 syntax = "proto3";
 package shiftcrypto.bitbox02;
@@ -39,10 +27,13 @@ message DeviceInfoResponse {
   string version = 3;
   bool mnemonic_passphrase_enabled = 4;
   uint32 monotonic_increments_remaining = 5;
-  // From v9.6.0: "ATECC608A" or "ATECC608B".
+  // From v9.6.0: "ATECC608A" or "ATECC608B" or "OPTIGA_TRUST_M_V3".
   string securechip_model = 6;
   // Only present in Bluetooth-enabled devices.
   optional Bluetooth bluetooth = 7;
+  // From v9.25.0. This together with `securechip_model` determines the password stretching
+  // algorithm.
+  string password_stretching_algo = 8;
 }
 
 message InsertRemoveSDCardRequest {
@@ -68,4 +59,4 @@ message SetPasswordRequest {
 }
 
 message ChangePasswordRequest{
-}
\ No newline at end of file
+}
diff --git a/api/firmware/messages/bluetooth.pb.go b/api/firmware/messages/bluetooth.pb.go
index dc07400..dcd965f 100644
--- a/api/firmware/messages/bluetooth.pb.go
+++ b/api/firmware/messages/bluetooth.pb.go
@@ -1,21 +1,9 @@
-// Copyright 2025 Shift Crypto AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: bluetooth.proto
 
 package messages
diff --git a/api/firmware/messages/bluetooth.proto b/api/firmware/messages/bluetooth.proto
index db98275..016a479 100644
--- a/api/firmware/messages/bluetooth.proto
+++ b/api/firmware/messages/bluetooth.proto
@@ -1,16 +1,4 @@
-// Copyright 2025 Shift Crypto AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 syntax = "proto3";
 package shiftcrypto.bitbox02;
diff --git a/api/firmware/messages/btc.pb.go b/api/firmware/messages/btc.pb.go
index 168ccfe..9326a03 100644
--- a/api/firmware/messages/btc.pb.go
+++ b/api/firmware/messages/btc.pb.go
@@ -1,22 +1,9 @@
-// Copyright 2019 Shift Cryptosecurity AG
-// Copyright 2020 Shift Crypto AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: btc.proto
 
 package messages
diff --git a/api/firmware/messages/btc.proto b/api/firmware/messages/btc.proto
index 9793542..bee46ad 100644
--- a/api/firmware/messages/btc.proto
+++ b/api/firmware/messages/btc.proto
@@ -1,17 +1,4 @@
-// Copyright 2019 Shift Cryptosecurity AG
-// Copyright 2020 Shift Crypto AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 syntax = "proto3";
 package shiftcrypto.bitbox02;
diff --git a/api/firmware/messages/cardano.pb.go b/api/firmware/messages/cardano.pb.go
index 24156c0..0bf1c78 100644
--- a/api/firmware/messages/cardano.pb.go
+++ b/api/firmware/messages/cardano.pb.go
@@ -1,21 +1,9 @@
-// Copyright 2021 Shift Crypto AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: cardano.proto
 
 package messages
diff --git a/api/firmware/messages/cardano.proto b/api/firmware/messages/cardano.proto
index 54b661d..56b6d9d 100644
--- a/api/firmware/messages/cardano.proto
+++ b/api/firmware/messages/cardano.proto
@@ -1,16 +1,4 @@
-// Copyright 2021 Shift Crypto AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 syntax = "proto3";
 package shiftcrypto.bitbox02;
diff --git a/api/firmware/messages/common.pb.go b/api/firmware/messages/common.pb.go
index 7be92fa..21459b7 100644
--- a/api/firmware/messages/common.pb.go
+++ b/api/firmware/messages/common.pb.go
@@ -1,21 +1,9 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: common.proto
 
 package messages
diff --git a/api/firmware/messages/common.proto b/api/firmware/messages/common.proto
index 0fed08c..92f4f02 100644
--- a/api/firmware/messages/common.proto
+++ b/api/firmware/messages/common.proto
@@ -1,16 +1,4 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 syntax = "proto3";
 package shiftcrypto.bitbox02;
diff --git a/api/firmware/messages/eth.pb.go b/api/firmware/messages/eth.pb.go
index e782b28..23beb82 100644
--- a/api/firmware/messages/eth.pb.go
+++ b/api/firmware/messages/eth.pb.go
@@ -1,21 +1,9 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: eth.proto
 
 package messages
diff --git a/api/firmware/messages/eth.proto b/api/firmware/messages/eth.proto
index 65c8f90..b40295d 100644
--- a/api/firmware/messages/eth.proto
+++ b/api/firmware/messages/eth.proto
@@ -1,16 +1,4 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 syntax = "proto3";
 package shiftcrypto.bitbox02;
diff --git a/api/firmware/messages/hww.pb.go b/api/firmware/messages/hww.pb.go
index 4416b40..8f38d28 100644
--- a/api/firmware/messages/hww.pb.go
+++ b/api/firmware/messages/hww.pb.go
@@ -1,21 +1,9 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: hww.proto
 
 package messages
diff --git a/api/firmware/messages/hww.proto b/api/firmware/messages/hww.proto
index ea7177e..07cb660 100644
--- a/api/firmware/messages/hww.proto
+++ b/api/firmware/messages/hww.proto
@@ -1,16 +1,4 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 syntax = "proto3";
 package shiftcrypto.bitbox02;
diff --git a/api/firmware/messages/keystore.pb.go b/api/firmware/messages/keystore.pb.go
index 3207c39..ef2563d 100644
--- a/api/firmware/messages/keystore.pb.go
+++ b/api/firmware/messages/keystore.pb.go
@@ -1,10 +1,12 @@
+// SPDX-License-Identifier: Apache-2.0
+
 // This function can be used to get an identifying xpub at the keypath m/4541509'/1112098098'"
 // The keypath argument has to be m/4541509'/1112098098'
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: keystore.proto
 
 package messages
diff --git a/api/firmware/messages/keystore.proto b/api/firmware/messages/keystore.proto
index d6d5641..4f63cd3 100644
--- a/api/firmware/messages/keystore.proto
+++ b/api/firmware/messages/keystore.proto
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: Apache-2.0
+
 // This function can be used to get an identifying xpub at the keypath m/4541509'/1112098098'"
 // The keypath argument has to be m/4541509'/1112098098'
 
diff --git a/api/firmware/messages/mnemonic.pb.go b/api/firmware/messages/mnemonic.pb.go
index 5412491..ca26bc6 100644
--- a/api/firmware/messages/mnemonic.pb.go
+++ b/api/firmware/messages/mnemonic.pb.go
@@ -1,21 +1,9 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: mnemonic.proto
 
 package messages
diff --git a/api/firmware/messages/mnemonic.proto b/api/firmware/messages/mnemonic.proto
index c13e02a..9137274 100644
--- a/api/firmware/messages/mnemonic.proto
+++ b/api/firmware/messages/mnemonic.proto
@@ -1,16 +1,4 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 syntax = "proto3";
 package shiftcrypto.bitbox02;
diff --git a/api/firmware/messages/perform_attestation.pb.go b/api/firmware/messages/perform_attestation.pb.go
index ce3e08c..1c3ed23 100644
--- a/api/firmware/messages/perform_attestation.pb.go
+++ b/api/firmware/messages/perform_attestation.pb.go
@@ -1,7 +1,9 @@
+// SPDX-License-Identifier: Apache-2.0
+
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: perform_attestation.proto
 
 package messages
diff --git a/api/firmware/messages/perform_attestation.proto b/api/firmware/messages/perform_attestation.proto
index 50d0d48..db7f399 100644
--- a/api/firmware/messages/perform_attestation.proto
+++ b/api/firmware/messages/perform_attestation.proto
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: Apache-2.0
 
 syntax = "proto3";
 package shiftcrypto.bitbox02;
diff --git a/api/firmware/messages/system.pb.go b/api/firmware/messages/system.pb.go
index ceea785..28b16b4 100644
--- a/api/firmware/messages/system.pb.go
+++ b/api/firmware/messages/system.pb.go
@@ -1,21 +1,9 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.36.10
-// 	protoc        v6.33.1
+// 	protoc-gen-go v1.36.11
+// 	protoc        v3.21.12
 // source: system.proto
 
 package messages
diff --git a/api/firmware/messages/system.proto b/api/firmware/messages/system.proto
index c0fb8c0..5df5bc4 100644
--- a/api/firmware/messages/system.proto
+++ b/api/firmware/messages/system.proto
@@ -1,16 +1,4 @@
-// Copyright 2019 Shift Cryptosecurity AG
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
+// SPDX-License-Identifier: Apache-2.0
 
 syntax = "proto3";
 package shiftcrypto.bitbox02;
diff --git a/api/firmware/system.go b/api/firmware/system.go
index aee151b..f3bd11c 100644
--- a/api/firmware/system.go
+++ b/api/firmware/system.go
@@ -72,6 +72,13 @@ func (device *Device) DeviceInfo() (*DeviceInfo, error) {
 		Bluetooth:                 bluetooth,
 	}
 
+	// Before v9.25.0, this field did not exist and there was only one stretching algo.
+	if device.version.AtLeast(semver.NewSemVer(9, 25, 0)) {
+		deviceInfo.PasswordStretchingAlgo = deviceInfoResponse.DeviceInfo.PasswordStretchingAlgo
+	} else {
+		deviceInfo.PasswordStretchingAlgo = "V0"
+	}
+
 	return deviceInfo, nil
 }