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License control for instance in JAVA
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Nowadays, many J2EE application using a license file to authorized system use, especially early on in the system, will provide a limited license file system limitations, such as trial version, for example IP, date, and maximum limit on the number of users, and so on. License file in Base64 or BEA is now WebLo
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Keytool usage
4.0
A digital certificate is a kind of electronic documents, by authority of impartial third parties, namely CA certificates issued by the Center. CA A. authority bodies, also known as the certificate of certification (Certificate Authority), Center, as the trusted third party e-commerce transactions, bear the responsibility for the inspection of the legality of public key in a public key system. For each CA Center uses the public key of a user issuing a digital certificate, a digital certificate is proof that the certificates are listed in the users who legally owns the public key listed in the certificate. CA authority's digital signature prevents attackers from forging or altering the certificates. It is responsible for the generation, distribution and management of all digital certificates required for individuals involved in online transactions, and therefore is the core of secure electronic transactions. Therefore, certificate authority (CA) Centra
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