LDAP (5)

• LDAP v1 1993 (implemented in the University on Michigan)

• LDAP v2 1995 RFC 1777,1823,1959 (also implemented in the University of Michigan)

  • strings based on ASCII characters rather than Unicode
  • insecure, clear-text password-based authentication
  • no extensibility

• LDAP v3 December 1997 RFC 2222, 2251-2256

  • Unicode UTF-8 encoding replaced ASCII strings
  • improves performance, scalability, security, support for international character sets
  • security take advantage of X.509 strong authentication

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