Amber's avatar
Amber
npub1am3e...xrv7
Amber is a nostr event signer for Android. It allows users to keep their nsec segregated in a single, dedicated app. The goal of Amber is to have your smartphone act as a NIP-46 signing device without any need for servers or additional hardware. "Private keys should be exposed to as few systems as possible as each system adds to the attack surface," as the rationale of said NIP states. In addition to native apps, Amber aims to support all current nostr web applications without requiring any extensions or web servers.
Amber's avatar
Amber 4 days ago
## Amber 6.2.1 - Reduce battery drain from relay reconnects and websocket pings - Drop dead relays from the subscription pool instead of only backing off reconnects - Do not wake the device when updating the relay notification - Modernize the settings screen with grouped Material 3 cards and distinct icons - Fix navigation crash when opening application permissions - Fix a crash when writing the Bunker connect screen state off the main thread - Reply with an error for invalid bunker request methods - Add NIP-46 logout method support - Add support for event kind 39701 (Public web bookmark) - Fix a per-account database connection leak by building databases atomically - Refresh app bar titles when the language changes - Update Kotlin to 2.4.0 and Gradle to 9.5.1 - Update translations Download it with [Zapstore]( [Obtainium](https://github.com/ImranR98/Obtainium), [f-droid](https://f-droid.org/packages/com.greenart7c3.nostrsigner) or download it directly in the [releases page](https://github.com/greenart7c3/Amber/releases/tag/v6.2.1) If you like my work consider making a [donation](https://greenart7c3.com) ## Verifying the release In order to verify the release, you'll need to have `gpg` or `gpg2` installed on your system. Once you've obtained a copy (and hopefully verified that as well), you'll first need to import the keys that have signed this release if you haven't done so already: ``` bash gpg --keyserver hkps://keys.openpgp.org --recv-keys 44F0AAEB77F373747E3D5444885822EED3A26A6D ``` Once you have his PGP key you can verify the release (assuming `manifest-v6.2.1.txt` and `manifest-v6.2.1.txt.sig` are in the current directory) with: ``` bash gpg --verify manifest-v6.2.1.txt.sig manifest-v6.2.1.txt ``` You should see the following if the verification was successful: ``` bash gpg: Signature made Fri 13 Sep 2024 08:06:52 AM -03 gpg: using RSA key 44F0AAEB77F373747E3D5444885822EED3A26A6D gpg: Good signature from "greenart7c3 <greenart7c3@proton.me>" ``` That will verify the signature on the main manifest page which ensures integrity and authenticity of the binaries you've downloaded locally. Next, depending on your operating system you should then re-calculate the sha256 sum of the binary, and compare that with the following hashes: ``` bash cat manifest-v6.2.1.txt ``` One can use the `shasum -a 256 <file name here>` tool in order to re-compute the `sha256` hash of the target binary for your operating system. The produced hash should be compared with the hashes listed above and they should match exactly.
Amber's avatar
Amber 2 weeks ago
## Amber 6.2.0 - Add NIP-44 v3 encryption support, including a dedicated approval screen, intent preview, bunker preview, history logging and auto-reject for invalid requests - Register NIP-44 v3 ContentProvider authorities - Auto-accept NIP-46 ping requests on connect - Ignore empty `` intents so the app can be opened directly - Simplify the invalid intent screen to only close the app - Use a segmented toggle for option pickers, with a scrollbar and shrinking segments when they get too narrow to fit the screen - Remove the `sign_message` signer method - Remove the 1 minute option from the sign-automatically pickers - Disable resource shrinking in release builds - New Crowdin translations Download it with [Zapstore]( [Obtainium](https://github.com/ImranR98/Obtainium), [f-droid](https://f-droid.org/packages/com.greenart7c3.nostrsigner) or download it directly in the [releases page](https://github.com/greenart7c3/Amber/releases/tag/v6.2.0) If you like my work consider making a [donation](https://greenart7c3.com) ## Verifying the release In order to verify the release, you'll need to have `gpg` or `gpg2` installed on your system. Once you've obtained a copy (and hopefully verified that as well), you'll first need to import the keys that have signed this release if you haven't done so already: ``` bash gpg --keyserver hkps://keys.openpgp.org --recv-keys 44F0AAEB77F373747E3D5444885822EED3A26A6D ``` Once you have his PGP key you can verify the release (assuming `manifest-v6.2.0.txt` and `manifest-v6.2.0.txt.sig` are in the current directory) with: ``` bash gpg --verify manifest-v6.2.0.txt.sig manifest-v6.2.0.txt ``` You should see the following if the verification was successful: ``` bash gpg: Signature made Fri 13 Sep 2024 08:06:52 AM -03 gpg: using RSA key 44F0AAEB77F373747E3D5444885822EED3A26A6D gpg: Good signature from "greenart7c3 <greenart7c3@proton.me>" ``` That will verify the signature on the main manifest page which ensures integrity and authenticity of the binaries you've downloaded locally. Next, depending on your operating system you should then re-calculate the sha256 sum of the binary, and compare that with the following hashes: ``` bash cat manifest-v6.2.0.txt ``` One can use the `shasum -a 256 <file name here>` tool in order to re-compute the `sha256` hash of the target binary for your operating system. The produced hash should be compared with the hashes listed above and they should match exactly.