Kriptonita Emissão - Chrome Web Store
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Fornece serviços de emissão de certificados no padrão ICP-Brasil

Kryptonite is a programming library for web developers that want to embed cryptographic features in their applications. By using Kryptonite, developers may issue and sign digital certificate requests for any Certificate Authority conforming to Brazilian national Public Key Infrastructure (ICP Brasil). They may also sign and verify documents that comply with ICP Brasil patterns. They may include compression and uncompression features in their web applications. Those extensions require the previous installation of a native application. This native application is currently developed only for Windows platform and requires Windows 8.1 or later. It uses operating system cryptographic providers to issue certificate requests and sign documents using installed RSA key pairs and certificates. It also supports RSA keys stored on smart cards. Kryptonite is distributed under GNU Public Licence and depends on some third-party libraries, such as Nharu library, Kiripema PKCS #11, OpenSSL, GNU Libidn and NodeJS. To use Kryptonite, allowed web sites must include an HTML element with ID kryptonite_install_signal in their page and implement Javascript routines using injected objects (kptaenroll, for certificate issuing; kptasign for document signing; kptaverify for signature verification; kptazip for document compression and uncompression). For extension privacy policy see "Privacy Policy" document at

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  • Version
  • Updated
    October 1, 2021
  • Offered by
    João Carlos Veiga
  • Size
  • Languages
    português (Brasil)
  • Developer
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.


The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes
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