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55 lines
2.3 KiB
55 lines
2.3 KiB
4 months ago
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Java(TM) Cryptography Extension Policy Files
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for the Java(TM) Platform, Standard Edition Runtime Environment
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README
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------------------------------------------------------------------------
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Import and export control rules on cryptographic software vary from
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country to country. The Java Cryptography Extension (JCE) architecture
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allows flexible cryptographic key strength to be configured via the
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jurisdiction policy files which are referenced by the "crypto.policy"
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security property in the <java-home>/conf/security/java.security file.
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By default, Java provides two different sets of cryptographic policy
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files:
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unlimited: These policy files contain no restrictions on cryptographic
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strengths or algorithms
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limited: These policy files contain more restricted cryptographic
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strengths
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These files reside in <java-home>/conf/security/policy in the "unlimited"
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or "limited" subdirectories respectively.
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Each subdirectory contains a complete policy configuration,
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and subdirectories can be added/edited/removed to reflect your
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import or export control product requirements.
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Within a subdirectory, the effective policy is the combined minimum
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permissions of the grant statements in the file(s) matching the filename
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pattern "default_*.policy". At least one grant is required. For example:
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limited = Export (all) + Import (limited) = Limited
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unlimited = Export (all) + Import (all) = Unlimited
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The effective exemption policy is the combined minimum permissions
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of the grant statements in the file(s) matching the filename pattern
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"exempt_*.policy". Exemption grants are optional. For example:
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limited = grants exemption permissions, by which the
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effective policy can be circumvented.
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e.g. KeyRecovery/KeyEscrow/KeyWeakening.
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Please see the Java Cryptography Architecture (JCA) documentation for
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additional information on these files and formats.
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YOU ARE ADVISED TO CONSULT YOUR EXPORT/IMPORT CONTROL COUNSEL OR ATTORNEY
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TO DETERMINE THE EXACT REQUIREMENTS.
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Please note that the JCE for Java SE, including the JCE framework,
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cryptographic policy files, and standard JCE providers provided with
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the Java SE, have been reviewed and approved for export as mass market
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encryption item by the US Bureau of Industry and Security.
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