Write Cpp Csharp Code For Cryptoapi X509 Certificates Timestamp

About:

I will write for you cryptography utility using Windows CryptoAPI or OpenSSL which can signing data by X.509 certificate and verify signature, validate certificate chain, add to signature time-stamp.

The program can be C++ or C#.

I can also provide bespoke software according to your needs.

Please contact me before placing your order, so we can discuss your assignment problem and make a reasonable timeline. Prices are indicative, but may very depending on the level of input needs.  

Reviews

Seller's Response:

Awesome Job working with Alexander...As always. Highly recommended!

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Another perfect job!

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As always, it is very pleasant to work with such a customer! Thank you :)

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Flawless execution again! Highly recommended.

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great program developed to extract key and signiture from a CSR. Thanks!