Transmitting apparatus, transmitting method, receiving apparatus, receiving method, transmitting and receiving system, and transmitting and receiving method

A transmitting method of transmitting a layer structure of a directory which manages public key certificate information in a layer manner, comprising:

• a managing step of making certificate authority information correspond to a container entry which can store its own subordinate information, making end entity information correspond to a leaf entry which is under domination of said container entry and cannot store its own subordinate information, and managing a layer structure of a directory constructed by said container entry and said leaf entry;
• a detecting step of detecting a change of said layer structure of said directory which is managed by said managing step and obtaining differential information constructed by a difference of the change of said layer structure of said directory on the basis of a detection result;
• and
• a transmitting step of transmitting said differential information detected by said detecting step,
• wherein information which can obtain latest public key certificate information and lapse information of said latest public key certificate information are stored into said container entry and/or said leaf entry.

A receiving apparatus for receiving a transmitted layer structure of a directory which manages public key certificate information in a layer manner, comprising:

• receiving means for making transmitted certificate authority information correspond to a container entry which can store its own subordinate information, making end entity information correspond to a leaf entry which is under domination of said container entry and cannot store its own subordinate information, and receiving differential information comprising a difference of a change of a layer structure of a directory which is constructed by said container entry and said leaf entry and obtained on the basis of a detection result obtained by detecting the change of said layer structure of said directory;
• managing means for managing said layer structure of said directory constructed on the basis of said differential information received by said receiving means;
• and
• changing means for selectively fetching said differential information and changing said layer structure of said directory which is managed by said managing means,
• wherein information which can obtain latest public key certificate information and lapse information of said latest public key certificate information are stored into said container entry and/or said leaf entry and transmitted.

A receiving method of receiving a transmitted layer structure of a directory which manages public key certificate information in a layer manner, comprising:

• a receiving step of making transmitted certificate authority information correspond to a container entry which can store its own subordinate information, making end entity information correspond to a leaf entry which is under domination of said container entry and cannot store its own subordinate information, and receiving differential information comprising a difference of a change of a layer structure of a directory which is constructed by said container entry and said leaf entry and obtained on the basis of a detection result obtained by detecting the change of said layer structure of said directory;
• a managing step of managing said layer structure of said directory constructed on the basis of said differential information received by said receiving step;
• and
• a changing step of selectively fetching said differential information and changing said layer structure of said directory which is managed by said managing step,
• wherein information which can obtain latest public key certificate information and lapse information of said latest public key certificate information are stored into said container entry and/or said leaf entry and transmitted.

A transmitting and receiving system for transmitting a layer structure of a directory which manages public key certificate information in a layer manner and receiving the transmitted layer structure of said directory, comprising:

• first managing means for making certificate authority information correspond to a container entry which can store its own subordinate information, making end entity information correspond to a leaf entry which is under domination of said container entry and cannot store its own subordinate information, and managing a layer structure of a directory constructed by said container entry and said leaf entry;
• detecting means for detecting a change of said layer structure of said directory which is managed by said first managing means and obtaining differential information constructed by a difference of the change of said layer structure of said directory on the basis of a detection result;
• transmitting means for transmitting said differential information detected by said detecting means;
• receiving means for receiving said differential information transmitted by said transmitting means;
• second managing means for managing said layer structure of said directory constructed on the basis of said differential information received by said receiving means;
• and
• changing means for selectively fetching said differential information and changing said layer structure of said directory which is managed by said second managing means,
• wherein information which can obtain latest public key certificate information and lapse information of said latest public key certificate information are stored into said container entry and/or said leaf entry.

A transmitting and receiving method of transmitting a layer structure of a directory which manages public key certificate information in a layer manner and receiving the transmitted layer structure of said directory, comprising:

• a first managing step of making certificate authority information correspond to a container entry which can store its own subordinate information, making end entity information correspond to a leaf entry which is under domination of said container entry and cannot store its own subordinate information, and managing a layer structure of a directory constructed by said container entry and said leaf entry;
• a detecting step of detecting a change of said layer structure of said directory which is managed by said first managing step and obtaining differential information constructed by a difference of the change of said layer structure of said directory on the basis of a detection result;
• a transmitting step of transmitting said differential information detected by said detecting step;
• a receiving step of receiving said differential information transmitted by said transmitting step;
• a second managing step of managing said layer structure of said directory constructed on the basis of said differential information received by said receiving step;
• and
• a changing step of selectively fetching said differential information and changing said layer structure of said directory which is managed by said second managing step,
• wherein information which can obtain latest public key certificate information and lapse information of said latest public key certificate information are stored into said container entry and/or said leaf entry.