23-01-2020 дата публикации
Номер: US20200026882A1
Принадлежит:
Methods and systems for activating measurement based on a trusted card are provided. The method includes loading, by a security chip, a trusted metric root for a metric object to a host processor, wherein the trusted metric root is an encrypted metric root; receiving, by the security chip, a processing result after the host processor performs asymmetric encryption and decryption processing on the trusted metric root, wherein the processing result includes metric object data encrypted by a public key; decrypting, by the security chip, the metric object data encrypted by the public key; and determining, by the security chip, integrity of the metric object by performing a comparison on decrypted metric object data. 1. A method comprising:loading, by a security chip, a trusted metric root for a metric object to a host processor, wherein the trusted metric root is an encrypted metric root;receiving, by the security chip, a processing result after the host processor performs asymmetric encryption and decryption processing on the trusted metric root, wherein the processing result includes metric object data encrypted by a public key;decrypting, by the security chip, the metric object data encrypted by the public key; anddetermining, by the security chip, integrity of the metric object by performing a comparison on decrypted metric object data.2. The method according to claim 1 , wherein the security chip stores a private key for the trusted metric root claim 1 , and the host processor stores the public key for the trusted metric root.3. The method according to claim 2 , wherein before the security chip loads the trusted metric root of the metric object to the host processor claim 2 , the method further comprises:loading, by the security chip, a metric root of the metric object to an encryption module; andencrypting the metric root, by the encryption module, using the private key to obtain the trusted metric root.4. The method according to claim 2 , wherein decrypting claim ...
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