This page configures the SecExMail Gate entropy collection. Entropy is important to the generation of random session keys. It is safe to leave the default settings. Light entropy collection options incur minimum impact on CPU performance and are appropriate for most servers. Heavy entropy collection options are appropriate for "high end" CPU servers and servers with a high traffic load. Ordinarily, the best source of entropy on most computer systems is the user him/herself. On server systems where no user interaction exists extra care must be taken to guarantee good entropy and, by extension, guarantee selection of encryption keys which are unpredictable to any attacker. See Entropy Collection.
| If checked, this setting prompts SecExMail Gate to collect information about all event handles on this computer at the specified interval. Variations in the collected data are distilled into the entropy pool via a secure hash function.
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| If checked, this setting prompts SecExMail Gate to collect information about all process handles on this computer at the specified interval. Variations in the collected data are distilled into the entropy pool via a secure hash function.
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| If checked, this setting prompts SecExMail Gate to collect information about all thread handles on this computer at the specified interval. Variations in the collected data are distilled into the entropy pool via a secure hash function.
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| If checked, this setting prompts SecExMail Gate to collect information about all semaphore handles on this computer at the specified interval. Variations in the collected data are distilled into the entropy pool via a secure hash function.
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| If checked, this setting prompts SecExMail Gate to collect information about all file handles on this computer at the specified interval. Variations in the collected data are distilled into the entropy pool via a secure hash function.
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| If checked, this setting prompts SecExMail Gate to register with the operating system for notification of file changes in the Windows folder. When changes are signalled, SecExMail Gate compiles file information on the Windows folder which is distilled into the entropy pool via a secure hash function.
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| If checked, this setting prompts SecExMail Gate to register with the operating system for notification of file changes in the temporary directory. When changes are signalled, SecExMail Gate compiles file information on the temporary directory which is distilled into the entropy pool via a secure hash function.
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