Information vending apparatus, information vending method, and program storage medium

A method comprising:

• accumulating information for sale;
• generating usage conditions for said information for sale in response to a purchase selection of information for sale;
• encrypting said purchase selection;
• generating a cryptographic key which decrypts said information for sale which is encrypted;
• writing said purchase selection to a portable recording medium upon authentication along with said usage conditions for said license management capability and said cryptographic key, and
• determining, based on a cross-authentication signal supplied from the writing, whether or not said portable recording medium is capable of supporting a license management capability for reproducing said purchase selection in accordance with the usage conditions prior to writing a purchase selection thereto, said portable recording medium directly or indirectly loaded on an apparatus, wherein
• the cross-authentication signal is a challenge response to a previously recorded key ID on the portable recorded medium, and said portable recording medium is a memory device configured to be loaded to a player device for reproduction of the information for sale.

A program storage medium for storing a computer-readable program, said program causing a computer to implement a method comprising:

• accumulating information for sale;
• generating usage conditions for said information for sale in response to a purchase selection of the information for sale;
• encrypting said purchase selection;
• generating a cryptographic key which decrypts said purchase selection which is encrypted;
• writing said purchase information to a portable recording medium upon authentication along with said usage conditions for said license management capability and said cryptographic key;
• and
• determining, based on a cross-authentication signal supplied from the writing, whether or not said portable recording medium is capable of supporting a license management capability for reproducing said purchase selection in accordance with the usage conditions prior to writing a purchase selection thereto, said portable recording medium directly or indirectly loaded on an apparatus, wherein
• the cross-authentication signal is a challenge response to a previously recorded key ID on the portable recorded medium, and said portable recording medium is a memory device configured to be loaded to a player device for reproduction of the information for sale.

An apparatus comprising:

• an accumulation unit configured to accumulate information for sale;
• a usage condition generating unit configured to provide usage conditions for said information for sale in response to a purchase selection of information for sale;
• an encryption unit configured to encrypt said purchase selection;
• an encryption key generating unit configured to generate a cryptographic key which decrypts said purchase selection;
• a writing unit configured to write said purchase selection to a portable recording medium along with said usage conditions for said license management capability and said cryptographic key upon authentication;
• and
• a determining unit configured to determine, based on a cross-authentication signal supplied from the writing unit, whether or not said portable recording medium is capable of supporting a license management capability for reproducing said purchase selection in accordance with the usage conditions prior to writing a purchase selection thereto, said portable recording medium directly or indirectly loaded on said apparatus, wherein
• the cross-authentication signal is a challenge response to a previously recorded key ID on the portable recorded medium, and said portable recording medium is a memory device configured to be loaded to a player device for reproduction of the information for sale.