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resources/java/jdk/conf/security/policy/README.txt

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

resources/java/jdk/conf/security/policy/limited/default_US_export.policy

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+// Default US Export policy file.
+
+grant {
+    // There is no restriction to any algorithms.
+    permission javax.crypto.CryptoAllPermission; 
+};

resources/java/jdk/conf/security/policy/limited/default_local.policy

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+// Some countries have import limits on crypto strength. This policy file
+// is worldwide importable.
+
+grant {
+    permission javax.crypto.CryptoPermission "DES", 64;
+    permission javax.crypto.CryptoPermission "DESede", *;
+    permission javax.crypto.CryptoPermission "RC2", 128, 
+                                     "javax.crypto.spec.RC2ParameterSpec", 128;
+    permission javax.crypto.CryptoPermission "RC4", 128;
+    permission javax.crypto.CryptoPermission "RC5", 128, 
+          "javax.crypto.spec.RC5ParameterSpec", *, 12, *;
+    permission javax.crypto.CryptoPermission "RSA", *;
+    permission javax.crypto.CryptoPermission *, 128;
+};

resources/java/jdk/conf/security/policy/limited/exempt_local.policy

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+// Some countries have import limits on crypto strength, but may allow for
+// these exemptions if the exemption mechanism is used.
+
+grant {
+    // There is no restriction to any algorithms if KeyRecovery is enforced.
+    permission javax.crypto.CryptoPermission *, "KeyRecovery"; 
+
+    // There is no restriction to any algorithms if KeyEscrow is enforced.
+    permission javax.crypto.CryptoPermission *, "KeyEscrow"; 
+
+    // There is no restriction to any algorithms if KeyWeakening is enforced. 
+    permission javax.crypto.CryptoPermission *, "KeyWeakening";
+};

resources/java/jdk/conf/security/policy/unlimited/default_US_export.policy

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+// Default US Export policy file.
+
+grant {
+    // There is no restriction to any algorithms.
+    permission javax.crypto.CryptoAllPermission; 
+};

resources/java/jdk/conf/security/policy/unlimited/default_local.policy

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+// Country-specific policy file for countries with no limits on crypto strength.
+
+grant {
+    // There is no restriction to any algorithms.
+    permission javax.crypto.CryptoAllPermission; 
+};