ECDH Tool Contact

Name: ECDH Tool Contact
Author: José Mª Arroyo Castejón

LiveJosé Mª Arroyo Castejón5 apps · 17.9K installsToolsFreecom.jmarroyo.ecdhtoolcontact

ECDH is an application that allows you to calculate DH Elliptic Curves secrets.

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Total installs: 662
Installs / day: 0
Rating: —★
Released: 11 May 2014
Last update: 29 Sept 2019
Countries: —

Installs per day

gain of the exact counter

12 Oct 2026No change in the counterOur first day-to-day reading of the counter. The line starts with the next one.

Daily tracking since 11 Oct 2026 · history grows every day

Install history

exact counter from Google Play

1dAll

Dashed: estimate from the release date (no daily data before 11 Oct 2026) · time axis compressed before that day

Daily tracking since 11 Oct 2026 · history grows every day

Change timeline

Full history

No changes recorded yet. We compare every crawl with the previous one and list title, icon, screenshots, description, version, price and availability changes here.

Country availability

Availability has not been checked for this app yet. “Check all countries” looks the app up in about 140 Google Play storefronts and shows where it is live, listed but not installable, or missing — plus any country-specific (custom) store listings.

Top countries

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We estimate where downloads come from using the app’s position in Google Play’s top charts in about 140 countries. This app is not in any chart we have collected yet; the estimate appears as soon as it is.

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App manifest

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Data safety

declared by the developer on Google Play

No data shared with third parties
No data collected

This is the developer's own declaration, summarised from the Play listing. The permissions below show what the app is technically able to access.

Store listing

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Full description

ECDH Tool Contact is an application that allows you to calculate Shared Secrets Diffie-Hellman using Elliptic Curves. The application can generate ECC Keys on the terminal (your phone) or you can download the applet provided into a JCOP SmartCard using my application CAP Loader, and then generate key pairs in the terminal and the Smart Card in order to compute and check the shared secret in both devices. You need an USB Smart Card Reader and an OnTheGo adapter. This program is distributed in the hope that it will be useful for educational purposes. ★ Allows you to Generate ECC Keys on your phone and compute Diffie-Hellman Shared Secret ★ Allows you to Generate ECC Keys both on your phone and in a Smart Card and compute Diffie-Hellman Shared Secret. ★ Allows you to Paste your own ECC Keys on your phone and compute Diffie-Hellman Shared Secret ★ With the application is downloaded an Expansion File what is located in /sdcard/Android/obb/main.2.com.jmarroyo.ecdhtoolcontact.obb You must copy this file to another location using a file explorer on your phone. Once you can get it from your PC, rename to main.2.com.jmarroyo.ecdhtoolcontact.ZIP and you can extract the applet provided appletecdh.cap Some of the Supported Readers from the manufacturer ACS Advanced Card Systems Ltd. For further information and updated list of devices supported visit www.acs.com.hk ACR33U ACR38U-CCID/ACR100-CCID ACR3801 ACR39U ACR88U ACR89U-AX ACR100I ACR101 ACR102 ACR122UX ACR125 ACR128XU 072F 8201 APG8201-A1 072F 90DB CryptoMate64

What's new

Adding expansion file

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