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Determine a checksum algorithm

$250-750 CAD

Completed

Posted

over 8 years ago

$250-750 CAD

Paid on delivery

The project file contains a number of messages with description in the header. Project will be complete when checksum algorithm can be identified, and sample code (vb.net) provided for generating the checksum.

C++ Programming

Computer Security

Project ID: 8502600

About the project

5 proposals

Remote project

Active 9 yrs ago

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Flag of UKRAINE

Hi, the checksum algorithm is successfully identified and works for all messages in the file. It's evident now that checksum is generated on compressed messages only. By the way, the algorithm uses all 4 bytes (not just first 2 bytes) which is confirmed by some of the messages with non-zero last 2 bytes. My full profile on this site: 270+ completed projects, customer rating 5.0/5 (click on my name).

$250 CAD in 1 day

4.9

(95 reviews)

6.5

6.5

5 freelancers are bidding on average $466 CAD for this job

Hi! I am professional C/C++/C#/Java programmer. I can do this project with highest quality! Best Regards, Szymszteinsl

$750 CAD in 10 days

4.8

(64 reviews)

6.7

6.7

Flag of PAKISTAN

I am computer Engineer. I can help you with your checksum problem. Let me know if you need my help in

$555 CAD in 10 days

5.0

(5 reviews)

3.2

3.2

@SharjeelSohail

Flag of PAKISTAN

A proposal has not yet been provided

$500 CAD in 10 days

4.6

(4 reviews)

2.9

2.9

Flag of UNITED STATES

Hello! I'd be happy to help you identify a checksum. Please message me with the details and I will begin.

$277 CAD in 1 day

0.0

(0 reviews)

0.0

0.0

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About the client

Vernon, Canada

5.0

3

Payment method verified

Member since May 14, 2015

Client Verification

Other jobs from this client

Determine a checksum algorithm2

Encrypted communications

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