我看到一个别人的问题,不知道什么意思 "作一个NOKIA证书"

基于Symbian OS9.0以上系统设计的产品（包括NOKIA 3250之后上市的S60产品及索尼爱立信M608c、

　　W958c、P1c等产品）在安装软件时均需要进行Symbian官方的安全许可的认证。在2月15日，Symbian方面

　　关闭了私人签名功能。而目前常用的软件约有70%无法使用。最新的官方解释如下：

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　　MESSAGE FOR DEVELOPERS
　　- Developer Certificates will be ENABLED for users who have a Publisher ID ONLY. (during GMT office hours)
　　- ONLY If you used a Publisher ID to create a .csr file with the DevCertCreate tool will you be able to use Open Signed Offline to create a Developer Certificate.
　　- Developer Certificates are currently DISABLED for users without a Publisher ID. Users who DO NOT have a Publisher ID CANNOT request Developer Certificates or use Open Signed Offline.
　　- Open Signed Online and Offline for users without a Publisher ID will NOT be available temporarily, an update will be provided during Week beginning 25th Feb.
　　- If you have recently obtained a Publisher ID and are una