摘要:
A circuit and a method for generating a random number are provided. The circuit for generating the random number includes an analog-to-digital converter and a controller. The analog-to-digital converter sequentially generates a plurality of digital data in response to an analog signal. The controller utilizes an estimation procedure to sequentially analyze a variation trend of the plurality of digital data in a time sequence or extract components of the plurality of digital data within a preset frequency band. In addition, the controller generates a true random number based on a result of the estimation procedure.
摘要:
A system on chip including a first master circuit, a second master circuit, a routing circuit, a bridge control circuit, and a peripheral circuit is provided. The first master circuit provides a first command. The second master circuit provides a second command. The routing circuit receives the first command and the second command and provides an output command. The bridge control circuit receives the output command and stores an attribute setting value. In response to the routing circuit receiving the first command and the first command pointing to the peripheral circuit, the routing circuit uses the first command as the output command and the bridge control circuit determines whether attribute information of the output command matches the attribute setting value. In response to the attribute information of the output command matching the attribute setting value, the bridge control circuit provides the output command to the peripheral circuit.
摘要:
A system on chip including a first peripheral circuit, a second peripheral circuit, and a first bridge control circuit is provided. The first bridge control circuit stores a first attribute setting value and a second attribute setting value and determines whether the attribute information of the first output command matches the first attribute setting value or the second attribute setting value. In response to the attribute information of the first output command matching the first attribute setting value, the first bridge control circuit provides the first output command to the first peripheral circuit. In response to the attribute information of the first output command matching the second attribute setting value, the first peripheral circuit provides the first output command to the second peripheral circuit.
摘要:
An information security protection method includes: repeatedly substituting a plaintext into an encryption algorithm to obtain a plurality of ciphertexts, and determining whether the ciphertexts are all the same h the processor core. Each time the processor core substitutes the plaintext into the encryption algorithm, the encryption algorithm outputs a ciphertext. When the processor core determines that the ciphertexts are not all the same, the processor core outputs a hacker attack message, which means that an encryption process has suffered a hacker attack.
摘要:
A circuit and a method for generating a random number are provided. The circuit for generating the random number includes an analog-to-digital converter and a controller. The analog-to-digital converter sequentially generates a plurality of digital data in response to an analog signal. The controller utilizes an estimation procedure to sequentially analyze a variation trend of the plurality of digital data in a time sequence or extract components of the plurality of digital data within a preset frequency band. In addition, the controller generates a true random number based on a result of the estimation procedure.
摘要:
A parameter checking method includes substituting a plurality of initial parameters into a data integrity algorithm to obtain syndrome data using a processor, and using a hardware cipher to calculate a calculation result based on the data integrity algorithm based on a plurality of calculation parameters corresponding to the initial parameters. Moreover, when the processor determines that the syndrome data is not the same as the calculation result, the processor outputs a hacker attack message, indicating that at least one of the calculation parameters has been tampered with.
摘要:
An encryption/decryption apparatus and an encryption/decryption method thereof are provided. A data encryption/decryption unit performs an encryption/decryption operation to a digital data and thus generates an encryption/decryption power signal corresponding to the encryption/decryption operation. A complementary power generating unit generates a complementary power signal corresponding to the encryption/decryption power signal. The encryption/decryption apparatus outputs the complementary power signal and the encryption/decryption power signal as a power signal, wherein a sum of the complementary power signal and the encryption/decryption power signal is a fixed value.