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add support for singlesig era hardware wallet
Public commit record
45/100 · Thin
What the developer wrote
Authored by Craig Raw
add support for singlesig era hardware wallet
✓ Descriptive subject✓ Names a concrete action or component! No meaningful explanatory body
What changed, and why it matters
This commit adds support for a new hardware wallet called ERA Wallet to the Sparrow desktop Bitcoin wallet. It is a straightforward feature addition: a new import class that reuses existing code for another similar wallet (Keystone), plus icons and menu entries. There is no indication of a security bug, vulnerability, or malicious change in the code shown.
Recommended action
No security action required. Treat as normal feature addition. If desired, review the parent class KeystoneSinglesig parsing logic to ensure inherited QR/file import behavior is appropriate for ERA Wallet output.
Security signals we found
No strong security signals were identified.
Evidence from the diff
The change introduces EraSinglesig.java, a subclass of KeystoneSinglesig, to handle single-signature keystore imports from the ERA Wallet via QR code. It overrides name, description, wallet model, and keystore label, and disables file-based import. The new importer is registered in WalletImportDialog.java and HwAirgappedController.java. Four SVG icon assets are added. No cryptographic, parsing, or access-control changes are present in the diff.
Changed components
Wallet import dialogHardware airgapped keystore import controllerERA Wallet importer (new)Wallet model icon assetsInspect captured patch +78 / −3
diff --git a/src/main/java/com/sparrowwallet/sparrow/control/WalletImportDialog.java b/src/main/java/com/sparrowwallet/sparrow/control/WalletImportDialog.java
index 7c56b21..ea9ee1b 100644
--- a/src/main/java/com/sparrowwallet/sparrow/control/WalletImportDialog.java
+++ b/src/main/java/com/sparrowwallet/sparrow/control/WalletImportDialog.java
@@ -52,7 +52,7 @@ public class WalletImportDialog extends Dialog<List<Wallet>> {
importAccordion = new Accordion();
List<KeystoreFileImport> keystoreImporters = List.of(new ColdcardSinglesig(), new CoboVaultSinglesig(), new Jade(), new KeystoneSinglesig(), new PassportSinglesig(),
- new GordianSeedTool(), new SeedSigner(), new SpecterDIY(), new Krux(), new AirGapVault(), new Samourai(), new KeycardShellSinglesig());
+ new GordianSeedTool(), new SeedSigner(), new SpecterDIY(), new Krux(), new AirGapVault(), new Samourai(), new KeycardShellSinglesig(), new EraSinglesig());
for(KeystoreFileImport importer : keystoreImporters) {
if(!importer.isDeprecated() || Config.get().isShowDeprecatedImportExport()) {
FileWalletKeystoreImportPane importPane = new FileWalletKeystoreImportPane(importer);
diff --git a/src/main/java/com/sparrowwallet/sparrow/io/EraSinglesig.java b/src/main/java/com/sparrowwallet/sparrow/io/EraSinglesig.java
new file mode 100644
index 0000000..4db9480
--- /dev/null
+++ b/src/main/java/com/sparrowwallet/sparrow/io/EraSinglesig.java
@@ -0,0 +1,43 @@
+package com.sparrowwallet.sparrow.io;
+
+import com.sparrowwallet.drongo.policy.PolicyType;
+import com.sparrowwallet.drongo.protocol.ScriptType;
+import com.sparrowwallet.drongo.wallet.Keystore;
+import com.sparrowwallet.drongo.wallet.WalletModel;
+
+import java.io.InputStream;
+
+public class EraSinglesig extends KeystoneSinglesig {
+ @Override
+ public String getName() {
+ return "ERA Wallet";
+ }
+
+ @Override
+ public String getKeystoreImportDescription(int account) {
+ return "Import QR created on your ERA Wallet by opening your wallet and selecting Link > Sparrow from the wallet menu.";
+ }
+
+ @Override
+ public WalletModel getWalletModel() {
+ return WalletModel.ERA_WALLET;
+ }
+
+ @Override
+ public Keystore getKeystore(PolicyType policyType, ScriptType scriptType, InputStream inputStream, String password) throws ImportException {
+ Keystore keystore = super.getKeystore(policyType, scriptType, inputStream, password);
+ keystore.setLabel("ERA Wallet");
+
+ return keystore;
+ }
+
+ @Override
+ public boolean isFileFormatAvailable() {
+ return false;
+ }
+
+ @Override
+ public boolean isWalletImportFileFormatAvailable() {
+ return false;
+ }
+}
diff --git a/src/main/java/com/sparrowwallet/sparrow/keystoreimport/HwAirgappedController.java b/src/main/java/com/sparrowwallet/sparrow/keystoreimport/HwAirgappedController.java
index 78afe00..a66ada2 100644
--- a/src/main/java/com/sparrowwallet/sparrow/keystoreimport/HwAirgappedController.java
+++ b/src/main/java/com/sparrowwallet/sparrow/keystoreimport/HwAirgappedController.java
@@ -27,7 +27,7 @@ public class HwAirgappedController extends KeystoreImportDetailController {
public void initializeView() {
List<KeystoreFileImport> fileImporters = Collections.emptyList();
if(getMasterController().getWallet().getPolicyType().equals(PolicyType.SINGLE_HD) || getMasterController().getWallet().getPolicyType().equals(PolicyType.SINGLE_SP)) {
- fileImporters = List.of(new ColdcardSinglesig(), new CoboVaultSinglesig(), new Jade(), new KeystoneSinglesig(), new PassportSinglesig(), new SeedSigner(), new GordianSeedTool(), new SpecterDIY(), new Krux(), new AirGapVault(), new KeycardShellSinglesig());
+ fileImporters = List.of(new ColdcardSinglesig(), new CoboVaultSinglesig(), new Jade(), new KeystoneSinglesig(), new PassportSinglesig(), new SeedSigner(), new GordianSeedTool(), new SpecterDIY(), new Krux(), new AirGapVault(), new KeycardShellSinglesig(), new EraSinglesig());
} else if(getMasterController().getWallet().getPolicyType().equals(PolicyType.MULTI_HD)) {
fileImporters = List.of(new Bip129(), new ColdcardMultisig(), new CoboVaultMultisig(), new JadeMultisig(), new KeystoneMultisig(), new PassportMultisig(), new SeedSigner(), new GordianSeedTool(), new SpecterDIY(), new Krux(), new KeycardShellMultisig());
}
diff --git a/src/main/resources/image/walletmodel/era-icon-invert.svg b/src/main/resources/image/walletmodel/era-icon-invert.svg
new file mode 100644
index 0000000..31c544a
--- /dev/null
+++ b/src/main/resources/image/walletmodel/era-icon-invert.svg
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
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diff --git a/src/main/resources/image/walletmodel/era-icon.svg b/src/main/resources/image/walletmodel/era-icon.svg
new file mode 100644
index 0000000..d0c88d5
--- /dev/null
+++ b/src/main/resources/image/walletmodel/era-icon.svg
@@ -0,0 +1,8 @@
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diff --git a/src/main/resources/image/walletmodel/era-invert.svg b/src/main/resources/image/walletmodel/era-invert.svg
new file mode 100644
index 0000000..89fc8a4
--- /dev/null
+++ b/src/main/resources/image/walletmodel/era-invert.svg
@@ -0,0 +1,8 @@
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diff --git a/src/main/resources/image/walletmodel/era.svg b/src/main/resources/image/walletmodel/era.svg
new file mode 100644
index 0000000..d647c5c
--- /dev/null
+++ b/src/main/resources/image/walletmodel/era.svg
@@ -0,0 +1,8 @@
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Risk score
Our methodology →Why this scored 15/100
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