128-bit Ssl Certificates

Written by Kevin Tavolaro
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128-bit SSL certificates are considered to be the most secure for online exchanges. Session keys are issued in 40-bit, 56-bit, and 128-bit sizes, and the strength of the key increases with the size. Encrypted interactions between web servers and web browsers can be done with any of the key strengths. The key strength that is utilized is then determined by the what software is mutually supported by the browser and the server.

128-bit SSL certificates are currently impossible to crack. The vast amount of possible combinations in the 128-bit size prevents even the most advanced computers from calculating the right one. While 40-bit and 56-bit sizes to provide security, they are theoretically susceptible, as their smaller size puts the calculation of the correct combination within the realm of possibility--albeit just barely.

128-bit SSL Certificates and International Browsers

Initially, the strongest methods of encryption were not allowed to be used in products exported from the United States, and 128-bit encryption was not possible with U.S. browser exports. All browsers exported from the U.S. used 40-bit encryption to secure their exchanges.

Many of the U.S. web browsers intended for international export are also distributed domestically as well. As a result, 128-bit encryption was rendered unavailable to many American users as well. This caused difficulty for users of international browsers who were in need a stronger encryption protocol. This can now be remedied by the implementation of SuperCerts, certificates that facilitate the use of 128-bit encryption through 128-bit SSL certificates, even in those browsers where it was previously unavailable.

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