Announce two new product: SmartCard Reader Rockey200 and USB2.0 Extension Cable

ROCKEY 200 is a handy and portable USB Smart Card reader that can perform read/write operations on any ISO 7816-1/2/3/4 smart cards which are compatible with protocol T=0 and T=1.

USB2.0 Extension Cable With high speed USB 2.0 devices such as USB token ,USB Card Reader and so on.

Come to try it now!

Digitally sign an office document

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Bob2002
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Digitally sign an office document

Postby Bob2002 » Wed Dec 14, 2016 2:31 am

You can digitally sign a document for many of the same reasons you might sign a paper document. A digital signature is used to authenticate (authenticate: The process of verifying that people and products are who and what they claim to be. For example, confirming the source and integrity of a software publisher's code by verifying the digital signature used to sign the code.) digital information — such as documents, e-mail messages, and macros — by using computer cryptography. Digital signatures help to establish the following assurances:

  • Authenticity: The digital signature helps to assure that the signer is who he or she claims to be.

  • Integrity: The digital signature helps to assure that the content has not been changed or tampered with since it was digitally signed.

  • Non-repudiation: The digital signature helps to prove to all parties the origin of the signed content. "Repudiation" refers to the act of a signer's denying any association with the signed content.

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