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參數(shù)資料
| 型號(hào)： | L12-TCPA-PALLADIUM |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | TCPA and Palladium |
| 中文描述： | 城鄉(xiāng)規(guī)劃和鈀 |
| 文件頁(yè)數(shù)： | 4/12頁(yè) |
| 文件大?。?/td> | 131K |
| 代理商： | L12-TCPA-PALLADIUM |
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THE TCPA FEATURE SET
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The TCPA Feature Set
Platform Authentication
Integrity Reporting
Protected Storage
Platform Authentication
TCPA provides for the TPM to have control over
multiple pseudonymous
attestation identities. TPM
attestation identities do not contain any owner or user related information. A platform identity
attests to platform properties. No single TPM
identity
is ever used to digitally sign data, this
provides privacy protection. A TPM identity certification is required to attest to the fact that they
identify a genuine TCPA platform. The TPM identity creation protocol allows for the choice of
different Certification Authorities (Privacy-CA) to certify each TPM identity to prevent correlation
of the TPMs.
Integrity Reporting
To trust that the TPM is a genuine TPM on a genuine trusted platform, the measurements reported
to the TPM during (and after) the boot process cannot be removed or deleted until reboot. Adding
each step in the boot process to the TPM hash vector ensures that no hiding code can execute on
a platform. The TPM will use an attestation identity to sign the integrity report. The recipient
of integrity information can evaluate trustworthiness of the information based on the certificated of
this attestation identity.
Protected Storage
The TCPA allows for protected storage, but no generic encryption device is required. Cryptographic
keys can be created that are protected by the TPM. Data can be encrypted using the TPM and can
only be decrypted using this same TPM. Additionally, the root TPM key can be used to create a
hierarchy of sealed keys, of which only the root key lives in the TPM while others live (encrypted)
on the hard drive. This allows the user to build new keys from the original TPM key and ensures
that the TPM public key is not released. Keys in this hierarchy-space can be migrateable, or not,
depending on how they are created by the software/OS or by the manufacturer.
Privacy-Positive design
The ultimate TPM functionality control goes to the owner (i.e. platform administrator). TPM
activation is controlled by the owner, while TPM deactivation is available to the individual users.
Additionally, to ensure privacy no single TPM
identity
is ever used to digitally sign data and multiple
pseudonymous IDs are allowed, which limits correlation. Remote control of the TPM is enabled by
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