Recording apparatus, reproducing apparatus, data processing apparatus, recording/reproducing apparatus, and data transmitting apparatus

A recording apparatus characterized by comprising:

• a control means of controlling encrypted data sent from an interface to be recorded;
• and
• a recording means, that is controlled by said control means, of recording said encrypted data on a disk.

A data processing apparatus comprising at least a move means of moving data that is recorded in a recording medium for recording data to another recording apparatus, characterized in that, in the case that data that is attempted to be moved by said move means is copy prohibited data prohibited from being copied, the copy prohibited data is encrypted by using an encryption key specific to said data processing apparatus when at least being outputted from said data processing apparatus.

A data processing apparatus comprising at least a copying means of copying data that is recorded on a recording medium for recording data into another recording apparatus, characterized in that, in the case that data that is attempted to be copied by said copying means is copy permission information that is prohibited from being copied, the copy prohibited data is encrypted by using an encryption key specific to said data processing apparatus when at least being outputted from said data processing apparatus.

A data processing apparatus, characterized by comprising at least a move means of moving data that is recorded in a recording medium for recording data to another recording apparatus as data in a format that can be decrypted in the other recording apparatus,

• wherein data that is attempted to be moved by said move means is copy prohibited data that is prohibited from being copied.

A data processing apparatus, characterized by comprising at least a copying means of copying data that is recorded in a recording medium for recording data in another recording apparatus as data in a format that can be decrypted in the other recording apparatus,

• wherein data that is attempted to be copied by said copying means is copy prohibited data that is prohibited from being copied.

An encrypted data decrypting and recording apparatus system characterized by comprising:

• a plurality of recording apparatuses that respectively record encrypted copy prohibited data, of which the content is identical, that is prohibited from being copied;
• and
• a decrypting and recording apparatus having a decryption means of decrypting said encrypted copy prohibited data that is outputted from said plurality of recording apparatuses and a recording means of recording encrypted, or unencrypted, copy prohibited data, of which the content is identical to said copy prohibited data.

A decrypting and recording apparatus, characterized by comprising:

• a decryption means of decrypting encrypted copy prohibited data, which is prohibited from being copied and which is outputted from a plurality of recording apparatuses in which said encrypted copy prohibited data, of which the content is identical, is respectively recorded;
• and
• a recording means of recording encrypted, or unencrypted, copy prohibited data, of which the content is identical to that of said copy prohibited data.

A recording apparatus, characterized by being one of a plurality of recording apparatuses that respectively record encrypted copy prohibited data, of which the content is identical, that is prohibited from being copied,

• wherein said recording apparatus comprises a recording means of recording said encrypted copy prohibited data and an output means of outputting said encrypted copy prohibited data that is recorded in said recording means, and
• wherein said encrypted copy prohibited data outputted from said output means is data that can only be decrypted in a decrypting and recording apparatus having at least a decryption means of decrypting said encrypted copy prohibited data.

A data transmission apparatus characterized by comprising a transmission means of transmitting a stream formed of a plurality of pieces of data,

• wherein each of said pieces of data in said stream, or within each of blocks forming said stream, is data that cannot be reproduced unless the piece of data chronologically positioned one position before said data is reproduced, and
• wherein said transmission means transmits each piece of said data, of data in said stream, or each of the blocks forming said stream, in the order of from the rear toward the head in a chronological manner.