Information processing apparatus, program loading method, recording medium, program updating method and circuit device

A program loading method for loading a preset program for controlling a preset operation of an information processing apparatus, to said information processing apparatus, comprising:

• an encrypted program data receiving step of receiving encrypted program data which is said preset program encrypted with a preset encryption key;
• a decrypting step of decrypting said encrypted program data received by said encrypted program data receiving step, using a preset decryption key;
• and
• a storage step of storing said preset program, decrypted from said encrypted program data in said decrypting step, in storage means.

A recording medium having recorded thereon a program for loading a preset program, configured for controlling a preset operation of an information processing apparatus, to said information processing apparatus, said program comprising:

• an encrypted program data receiving step of receiving encrypted program data obtained on encrypting said preset program using a preset encryption key;
• a decrypting step of decrypting said encrypted program data, received by said encrypted program data receiving step, to said preset program, using a preset decoding key;
• and
• a storage step of storing said preset program, decrypted from said encrypted program data by said decrypting step.

An information processing apparatus having a controlling unit including storage means having stored therein a first program and controlling means for reading out the first program stored in said storage means and for controlling the preset operation of the information processing apparatus based on said first program read out, comprising:

• encrypted program data receiving means for receiving encrypted program data which is a second program encrypted using a preset encryption key;
• decoding means for decoding said encrypted program data, received by said encrypted program data receiving means, using a preset decoding key;
• and
• program transmitting means for transmitting said second program, decrypted by said decrypting means from said encrypted program data, to said controlling unit;
• said controlling unit including program receiving means for receiving said second program transmitted by said transmitting means;
• and
• program writing means for writing said second program received by said program receiving means in said storage means.

A program updating method for an information processing apparatus having a controlling unit including storage means having stored therein a first program and controlling means for reading out said first program stored in said storage means and for controlling a preset operation of said information processing apparatus based on said first program as read out, comprising:

• an encrypted program data receiving step of receiving encrypted program data, which is a second program encrypted using a preset encryption key, responsive to a program update request requesting the updating of said first program;
• a decrypting step of decrypting said encrypted program data, received by said encrypted program data receiving step, to said second program, using a preset decrypting key;
• a program transmitting step of transmitting said second program, decrypted from said encrypted program data by said decrypting step;
• a program receiving step of receiving said second program transmitted to said controlling unit by said program transmitting step;
• and
• a program writing step of writing said second program, received by said program receiving step, in said storage means.

An information processing apparatus having a data processing unit for performing preset data processing;

• said data processing unit including
• encrypted program data receiving means for receiving encrypted program data which is a preset program encrypted using a preset encryption key;
• decoding means for decoding said encrypted program data, received by said encrypted program data receiving means, to said preset program, using a preset decrypting key;
• storage means for storing said preset program, decrypted from said encrypted program data by said decrypting means;
• program readout means for reading out said preset program stored in said storage means;
• first controlling means for controlling a preset data processing operation in said data processing unit, based on said preset program read out by said program readout means;
• and
• takeout limiting means for limiting the takeout from an external device of said preset program decrypted by said decrypting means and said preset program stored in said storage means.

A program loading method in a data processing unit provided in an information processing apparatus, said data processing unit executing preset data processing, said method comprising:

• an encrypted program data receiving step of receiving encrypted program data which is a preset program encrypted using a preset encryption key, said preset program being a program for executing the preset data processing in said data processing unit;
• a decrypting step of decrypting said encrypted program data, received in said encrypted program data receiving step, into said preset program, using a preset decryption key;
• a takeout limiting step of limiting takeout of said decrypted preset program from an external device;
• and
• a storage step of storing said preset program, decrypted in said decrypting step from said encrypted program data, in storage means.

A recording medium having recorded thereon a program for loading a preset program in a data processing unit provided in an information processing apparatus, said data processing unit executing preset data processing;

• the program stored in said recording medium including
• an encrypted program data receiving step of receiving encrypted program data which is a preset program encrypted using a preset encryption key, said preset program being a program for executing a preset data processing operation in said data processing unit;
• a decrypting step of decrypting said encrypted program data, received in said encrypted program data receiving step, into said preset program, using a preset decryption key;
• a takeout limiting step of limiting the takeout of said decrypted preset program from an external device;
• and
• a storage step of storing said preset program, decrypted in said decrypting step from said encrypted program data, in storage means.

A circuit device which is an integration of data processing means of an information processing apparatus adapted for performing preset data processing;

• comprising, in an integrated form:
• encrypted program data receiving means for receiving encrypted program data which is a preset program encrypted with a preset encryption key;
• decrypting means for decrypting said encrypted program data, received by said encrypted program data receiving means, into said preset program, using a preset decryption key;
• storage means for storing said preset program decrypted from said encrypted program data by said decrypting means;
• program readout means for reading out said preset program stored in said storage means;
• and
• takeout limiting means for limiting the takeout of said preset program decrypted by said decrypting means and said preset program stored in said storage means.