[DIRKRB-595] Add mode to allow KerberosString's to contain UTF-8 for MSFT KDC interop

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0-RC1
• Fix Version/s: 2.0.0-M23
• Component/s: changepw
• Flags: Patch
• Assignee: Unassigned
• Reporter: Griff James
• Created: 13/Jul/16 09:39
• Updated: 06/May/20 17:01
• Resolved: 17/Jul/16 06:48

Description

By definition KerberosString's are supposed to be in the range 0x20-0x7F. MSFT's kerberos implementation breaks this rule and allows Kerberos strings to contain UTF-8 characters for I18n.

Java's Kerberos implementation has MSFT compatibility mode which is enabled by setting the system property "sun.security.krb5.msinterop.kstring" to "true". This allows KerberosString's to contain UTF-8.

The attached patch is a proposed change to add the same support to the kerberos-code jar to allow the change password protocol to work for users with UTF-8 chars in their principal name.