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Description

The apksigner utility, included in version 24.0.3 and later of the Android SDK Build Tools, enables users to sign APK files and ensure that the APK’s signature is valid across all Android platform versions compatible with that APK. This document provides a brief overview of utilizing the tool and acts as a guide to the various command-line parameters it supports. For a detailed explanation of the apksigner tool in the context of APK signing, refer to the complete documentation. The minimum Android framework API level that apksigner relies on to ensure the APK's signature can be verified is adjustable; higher values enhance security protocols during the signing process but may restrict the APK's compatibility with older devices. By default, the tool refers to the minSdkVersion attribute specified in the application’s manifest file, which determines its baseline compatibility. Users are encouraged to consider both security and compatibility when selecting the API level for their APKs.

Description

The jarsigner utility serves a dual function: it authenticates the signatures and verifies the integrity of signed JAR files while also enabling the signing of Java Archive (JAR) files. A digital signature consists of a sequence of bits derived from the data being signed along with the private key of a specific entity, which could be an individual or a corporation, among others. Much like a handwritten signature, a digital signature possesses several beneficial properties; its authenticity can be confirmed through a calculation that employs the public key linked to the private key used for generating that signature. Furthermore, it is intrinsically tied to the signed data, meaning it cannot validly represent a signature for different data, and any alteration to the signed data renders the signature unverifiable as genuine. This mechanism ensures that it cannot be counterfeited, provided that the private key remains confidential, thereby enhancing security in digital transactions and communications.

API Access

Has API

API Access

Has API

Screenshots View All

Screenshots View All

Integrations

No details available.

Integrations

No details available.

Pricing Details

No price information available.
Free Trial
Free Version

Pricing Details

No price information available.
Free Trial
Free Version

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Vendor Details

Company Name

Google

Founded

1998

Country

United States

Website

developer.android.com/tools/apksigner

Vendor Details

Company Name

Oracle

Founded

1977

Country

United States

Website

docs.oracle.com/javase/7/docs/technotes/tools/windows/jarsigner.html

Product Features

Product Features

Alternatives

Alternatives

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