Personalisation LinPhone Security & Design

We are in a need of a customization of the opensource VoIP / SIP client LinPhone.

The development has to be done in two phases:

Phase 1: Customization of mobile + tablet apps (iOS + Android)

// Objective C = iOS + Java = Android --> ready in two weeks.

Phase 2: Customization of PC apps (Windows, Mac OSX and Linux)

// Qt/QML = Windows, Mac OSX and Linux --> ready in four weeks.

The main customization's must be:

- Upgrade security

Many security features, which include i.e.:

--> Use TLS connectivity for handshake

--> Use VPN connection for additional security

--> Use ZRTP encryption protocol on VoIP (voice and video) communication

--> Use text encryption for messaging and file sending

--> Database security on app and server

--> Secure connection settings

--> Use code obfuscation protection + Sign the app

--> Harden the security of application / program

--+ Encrypt the entire application

--+ Containerize the entire application

--+ Encrypt the database

--+ Lock screen / Login protection

--+ Brute force protection

--+ Code hardening by Pro+iX Guard

--+ Store encryption keys securely in Trusty

--> Set privacy settings

- Design customization

Many security features, which include i.e.:

All designs are based upon the operation of LinPhone, almost no real custom development.

--> Add a lock screen / login screen prior using app

--> Every function in the LinPhone app is customized by designer

--> APP settings are blocked for users to change - one setting fits all

--> Custom user account settings

SIP server will be setup by an other person if this isn't your specialty to save time and costs. When you can do this also total project budget is 1200$.

Budget $750 - $1000 for entire project.

Ready in 2 - 4 weeks (divided in two phases)

Time is of essence and must be ready in 2-4 weeks.

Skills: Android, C Programming, C++ Programming, Java, Mobile App Development

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About the Employer:
( 140 reviews ) Den Bosch, Spain

Project ID: #17977585

22 freelancers are bidding on average $1144 for this job

$1184 USD in 20 days
(76 Reviews)

Hello, I m fulltime available for work , I have 6 years of experienced on mobile application ( Android +iphone/ ipad ) and App admimn with development web services where admin can manage the app from backend More

$1100 USD in 20 days
(168 Reviews)

Hi I have rich experiences with Linphone and Sip client server. This project is perfect fit with my skill set. Hope to discuss more details with you. Regards

$1250 USD in 20 days
(52 Reviews)

Hi there, I have checked the details I have rich experienced with Android, C Programming, C++ Programming, Java, Mobile App Development. Please initiate chat so we can discuss this job.

$1250 USD in 20 days
(57 Reviews)

Hello, I am available full time for work.I understand your requirements and I can help you with your project. I am experienced Android App developer, and looking to start working with you on your project STEP BY More

$1000 USD in 20 days
(52 Reviews)

How are you? I read your description. I am C++/C#/Java/Python programming Expert. I can finish your project quickly with best quality. I want to discuss more on chat. Thank you for your time.

$1250 USD in 20 days
(34 Reviews)

Dear friend, We read through the job details We very much look forward to the opportunity to work with you and to make this occasion a momentous one. Can we have a discussion now ? Sample web development w More

$1250 USD in 20 days
(21 Reviews)
$1666 USD in 10 days
(36 Reviews)

Hi, sir! I have carefully read your job description and reviews. And I noticed you are good client for all freelancers, and will be good for me. Your job is very similar I did last month. I am so glad to face you More

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(11 Reviews)

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$1250 USD in 20 days
(14 Reviews)

Hello I've read your description and can know that you'd like to build an app. As a senior developer who has good experience in Android/iOS app development, I'd like to help you with this project. I will provide More

$833 USD in 11 days
(7 Reviews)

Hello, we can do this for you. We have developed several multiple different Android apps. When can we discuss your project? Here are samples of work: [login to view URL] [login to view URL] [login to view URL] ww More

$1200 USD in 30 days
(10 Reviews)

I have linphone customization experience

$750 USD in 3 days
(16 Reviews)

I am ready to assist you on the immediate basis to develop native apps for both Android/iPhone platforms. If you have prepared any feature listing doc than please share with me or share reference app. I am expert in More

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(14 Reviews)

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(18 Reviews)

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(4 Reviews)

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$1500 USD in 20 days
(3 Reviews)

Hello mate, I have gone through your requirement carefully , please inbox me so we can discuss more about your requirement , we have done more than 100 project like this before for our respected coustomers , we wil More

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(0 Reviews)

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(0 Reviews)

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