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API system for RSA Code Signing in PHP

Hi,

I need a system that allows:

1. User uploading an excel spreadsheet containing list of items to be code signed

2. generate a Hash function on the item string and retrieve the information digest of the item to be code signed

3. Code sign the hash digest using RSA private key

4. install the above scripts as an API system in client server that communicates with the main root server.

-> Graphic user interface will be provided and a step by step guide in flow chart will be shown.

Please bid for this project only if you know how to perform cryptography functions, such as using openssl libraries. All the encryption and decryption functions are provided at [url removed, login to view] If you are comfortable or have worked on prior project that does the function from the above link, then you should find the project comfortably easy to manage.

Let me know your background, whether you have cryptography, php, sql database knowledge. You should be familiar with the following subject fields:

1. RSA public and private key

2. .P12 and .pem file format

3. Hash function, ie. sha1()

4. Encryption and decryption using RSA (Or code Signing using private key)

5. Installation of API system

Compétences : Cryptographie, PHP, Script Install, SQL, Sécurité Web

Voir plus : code signing php, subject php, string hash, php manual, php main functions, find flow, how code, hash string, find code, rsa server installation, sql code, spreadsheet api, rsa, openssl, find root, decryption, code signing, api key, api interface using, format php code, php sql code, net sign file, php flow system, php server api, code uploading file php

Concernant l'employeur :
( 1 commentaire ) London, United Kingdom

N° du projet : #1651285

Décerné à :

ixwarrior

Hi, I am expert in PKI, OpenSSL and have solid background in network security. Please see PM for my bid. Thanks

1400 $ USD en 15 jours
(2 Commentaires)
2.8

6 freelance ont fait une offre moyenne de 1247 $ pour ce travail

srinichal

I can deliver the project

1280 $ USD en 25 jours
(82 Commentaires)
6.9
zeke

Dear Customer! I am an expert web developer with over 6 years of experience and very interested in this project. Ready to start immediately and finish as soon as possible. My bid is for fast professional service exc Plus

1100 $ USD en 10 jours
(144 Commentaires)
6.8
hsoft

Dear Sir/ Madam This is regarding the job posting on this site. I am interested to apply for the same. Here i provide you with brief details of my educational background, work experience and skills. I hold a mas Plus

1200 $ USD en 15 jours
(34 Commentaires)
6.4
garygoog

I am familiar at RSA mechan . I work with amazone private regularly.

1000 $ USD en 7 jours
(34 Commentaires)
5.7
multiprecision

I hold a Bachelor's Degree in IT Security wherein I have completed implementation of advanced encryption and signature schemes in C using the GNU Multi-precision library. I also have significant academic experience Plus

1500 $ USD en 21 jours
(0 Commentaires)
0.0