CA

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CA

The two-character ISO 3166 country code for CANADA.
Copyright © 2012, Campbell R. Harvey. All Rights Reserved.

CA

1. ISO 3166-1 alpha-2 code for Canada. This is the code used in international transactions to and from Canadian bank accounts.

2. ISO 3166-2 geocode for Canada. This is used as an international standard for shipping to Canada. Each province and territory has its own code with the prefix "CA." For example, the code for the Territory of Nunavut is ISO 3166-2:CA-NU.
Farlex Financial Dictionary. © 2012 Farlex, Inc. All Rights Reserved
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[USPRwire, Fri Oct 18 2013] Comodo, a leading Certificate Authority (CA) and Internet security organization, today announced that its Online Certificate Status Protocol (OCSP) responders handled over 2 billion requests in one day.
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A trusted Certificate Authority (CA) is typically deployed in the security infrastructure to validate the authenticity of the public keys.
Implementing RSA algorithm for fully distributed certificate authority in MANET
For example, my browser trusts some Certificate Authority called "POSTArCA" from a country known as SI, and also trusts "China Internet Network Information Center EV Certificates Root".
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A third-party company, like DigiCert or GeoTrust -- one that the browser recognises as a certificate authority -- issues the certificate and confirms the website's security credentials.
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Engineers for the Google Chrome browser became aware of the problem on 24 December and were able to trace the fake credentials back through an intermediate certificate authority (CA) to Turkish company TurkTrust.
Google Uncovers Unauthorised Certificate for Google.com
Gemnet CSP, KPN's certificate authority division, has also suspended access to their website.
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