摘要:
A computing system including a memory that is shared by a plurality of components of the computing system in order to exchange data between the plurality of components; and a controller configured to control the plurality of components to encrypt the data and to record the encrypted data in the memory.
摘要:
Watermarking method and apparatus for tracking hacking and method and apparatus for blocking hacking of content are provided. The watermarking method includes: obtaining device information from a reception device, with which content is shared, through a determined network channel; generating watermark data based on the obtained device information; and generating watermarked multimedia content by inserting the generated watermark data into content. The method of blocking hacking of content includes: if hacked content is found, detecting watermark data from the hacked content; detecting transmission and reception device information from the detected watermark data; and extracting a progress route of the content based on the detected transmission and reception device information and performing revocation on a hacked device.
摘要:
A method of processing digital content performed by an apparatus for storing digital content. In the method, a hardware regional code extracted from a memory of a content storage device is compared with a firmware regional code extracted from firmware, and the digital content is selectively encrypted and stored according to a corresponding regional code only when the hardware regional code matches the firmware regional code.
摘要:
Provided are a transport stream structure of image data, a transmitting and receiving apparatus and method thereof. A transport stream structure of image data includes a header compressed by a lossless compression algorithm; an additional information field for additional information of image data, the additional information field being generated based on compressing the header by using the lossless compression algorithm; and a payload including the image data. The transport stream structure of the image data, the transmitting and receiving apparatus and method thereof enables inserting the additional information without changing the size of the related art transport stream structure of the image data.
摘要:
A method of encrypting a message for message integrity is provided. In the method, a random number is generated, a first ciphertext is generated by encrypting the message by using the generated random number, a hash value of the first ciphertext is calculated, an encryption key is generated by using the hash value of the first ciphertext and a shared key, a second ciphertext is generated by encrypting the random number by using the encryption key, and the first and second ciphertexts are combined.
摘要:
Provided are a method and an apparatus for communication based on certification using a static identifier and an updatable dynamic identifier allowing a verified client to access a server.
摘要:
A method of processing digital content performed by an apparatus for storing digital content. In the method, a hardware regional code extracted from a memory of a content storage device is compared with a firmware regional code extracted from firmware, and the digital content is selectively encrypted and stored according to a corresponding regional code only when the hardware regional code matches the firmware regional code.
摘要:
Provided are a transport stream structure of image data, a transmitting and receiving apparatus and method thereof. A transport stream structure of image data includes a header compressed by a lossless compression algorithm; an additional information field for additional information of image data, the additional information field being generated based on compressing the header by using the lossless compression algorithm; and a payload including the image data. The transport stream structure of the image data, the transmitting and receiving apparatus and method thereof enables inserting the additional information without changing the size of the related art transport stream structure of the image data.
摘要:
Provided are a method and host device for using content using a mobile card, and a mobile card. The method includes storing an identifier (ID) of the mobile card, a global key, and a content key encrypted by a secret key of the mobile card, generating a combined key of the ID and the global key, generating a first cryptogram, in which the content key encrypted by the secret key is encrypted by the combined key, transmitting the first cryptogram to the mobile card, receiving from the mobile card a second cryptogram, in which the content key is encrypted by the combined key, and decrypting the second cryptogram. Accordingly, a user can use encrypted content from a remote place.
摘要:
A method and apparatus for generating and updating a license for content and for providing content are provided. The method of generating a license includes generating license signature information for authenticating the license; generating use rule information for controlling the use of the content; generating authentication code information for authenticating a coupon for changing at least a portion of the use rule information; and generating key information required for decrypting the content.