阿里云远程证明服务是一个统一的解决方案，用于验证平台的可信度和在该平台中运行的代码的完整性。该服务支持对基于可信平台模块TPM（Trusted Platform Module）的平台进行证明，以及对可信加密执行环境TEE（Trusted Execution Environment）的状态进行证明。本文介绍远程证明服务的工作原理及如何使用远程证明服务。
工作原理
阿里云远程证明服务以背调模型（Background-Check Model）为基础，可用于验证阿里云安全增强型实例的安全状态和可信性。该服务涉及以下角色：
证明者（Attester）：使用阿里云ECS实例的用户，需要向依赖方证明ECS实例的身份及可信度。
依赖方（Relying Party）：需要验证证明者身份及可信度的实体，依赖方会基于TPM、TEE等度量信息作为基准数据生成评估策略。
验证方（Verifier）：阿里云远程证明服务，负责将证据与评估策略进行比较，并得出验证结果。
具体证明流程如下：
证明者在ECS实例中收集和生成证据。
证明者将证据传递给依赖方。
依赖方将其直接转发给验证方。
验证方将证据与其评估策略进行比较。
验证方将证明结果返回给依赖方。
依赖方将证明结果与自己的评估策略进行比较。
在该验证过程中，证明结果由可信的验证方通过安全信道传递给依赖方，因此安全性较高。关于更多背调模型说明，请参见Background-Check Model。
在基于背调模型的阿里云远程证明服务设计中，除了支持由依赖方中转证据外，还支持证明者直接将证据传递给远程证明服务，依赖方可以随时向远程证明服务查询特定实体的证明结果。这种方式可以大大降低依赖方的负载，并有利于管理员集中管理其所有实体的状态。
计费说明
阿里云远程证明服务本身不收费。
但您需要对使用远程证明服务的ECS实例进行付费。
远程证明服务OpenAPI示例
阿里云远程证明服务支持基于vTPM平台模块的可信计算实例和基于Intel SGX/TDX/Enclave的机密计算实例。
针对vTPM的远程证明服务，您需要使用阿里云账号开通云安全中心服务。
针对机密计算实例特性Intel SGX/TDX等的远程证明服务，您可以通过匿名的HTTP方式访问。
远程证明vTPM可信实例
更多可信实例信息，请参见可信计算能力概述。
上报证据
请求参数示例（该接口需鉴权后方可调用，请参考请求结构和签名机制进行调用）：
access https://trusted-server.cn-hangzhou.aliyuncs.com?Action=PutMessage&PropertyUuid=0f74b5cc-ff0e-4fa6-b457-1dc58072****&FileData=******************请求响应示例：
{
"PropertyName": "instance-name",
"SystemTrustDetail": {
"pcr3": "d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198exxxx",
"pcr4": "c35cef3b92c3850dc0bfa6139b25dc1c4c3d642b8587bde0fiemd847ufjxxxx",
"pcr5": "aabd7d8c76c931dabed7ea53d1c8f96036c42a29435680ddff3f3148ff70xxxx",
"pcr6": "d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198exxxx",
"pcr0": "d22aa1bba22e829456f0cfda0d87690e6c252032864643da353133f161xxxx",
"pcr1": "d9f056a703f04e4f408445752e97e92c890266d32e2ff1df3e80545aab4fxxxx",
"pcr2": "d458cfe55cc03ea1f443f1562beec8df51c75e14a9fcf9a7234a13f198exxxx",
"pcr7": "dd794f2d0c4cfa28dc9b5a3266e8516378ba551190d9844c38b890f7ad27xxxx",
"pcr8": "deb301d065009d62980110d8173e350bbd43a4997ad74bf358ce5399c0ecxxxx",
"pcr9": "ffe25e93ac7d245159184ac68c7dd5783e4cea978fafb1ad036bc861a8cdxxxx"
},
"RequestId": "D0E0C1D2-2937-54D4-9C52-XXXXXXXXXXXX",
"SystemExceptionNum": 0,
"ProgramWhiteListId": -1,
"SystemWhiteListId": 1234,
"ProgramTrustStatus": 4,
"SystemTrustStatus": 1,
"GmtModified": 1698975648000,
"ProgramWhiteListName": "",
"GmtRecentReport": 1698975648000,
"OnlineStatus": 1,
"Extensions": {
"pcr5": "d1dac9c104c63c7e24f27962f4ad1df639a3f3224b1a968a45916207cf3xxxx"
},
"PropertyPrivateIp": "1.1.X.X",
"PropertyPublicIp": "1.1.X.X",
"GmtCreate": 1698385542000,
"PropertyUuid": "c13fcabe-6683-4a9f-8cdd-xxxxxxxxxxxx",
"ProgramTrustDetail": "{}",
"ProgramExceptionNum": 0,
"PropertyAffiliation": 1
}查询证明结果
请求参数示例：
access https://trusted-server.cn-beijing.aliyuncs.com?Action=DescribeInstance&PropertyUuid=0f74b5cc-ff0e-4fa6-b457-1dc58072****请求响应示例：
{
"RequestId": "473469C7-AA6F-4DC5-B3DB-A3DC0DE3****"
"data": {
"nextClientIMAIndex": 0,
"systemVerificationResult": {
"status": 1,
"code": "TrustedStatus"
},
"programVerificationResult": {
"status": 1,
"code": "TrustedStatus"
}
}
}远程证明SGX/TDX机密实例
更多SGX/TDX机密实例信息，请参见构建SGX机密计算环境和构建TDX机密计算环境。
获取平台TCB信息
请求参数示例：
curl https://sgx-dcap-server.cn-beijing.aliyuncs.com/sgx/certification/v3/tcb?fmspc=00606A000000请求响应示例：
{
"tcbInfo": {
"version": 2,
"issueDate": "2023-10-11T08:09:33Z",
"nextUpdate": "2023-12-18T08:09:33Z",
"fmspc": "00606A000000",
"pceId": "0000",
"tcbType": 0,
"tcbEvaluationDataNumber": 12,
"tcbLevels": [{
"tcb": {
"sgxtcbcomp01svn": 4,
"sgxtcbcomp02svn": 4,
"sgxtcbcomp03svn": 3,
"sgxtcbcomp04svn": 3,
"sgxtcbcomp05svn": 255,
"sgxtcbcomp06svn": 255,
"sgxtcbcomp07svn": 0,
"sgxtcbcomp08svn": 0,
"sgxtcbcomp09svn": 0,
"sgxtcbcomp10svn": 0,
"sgxtcbcomp11svn": 0,
"sgxtcbcomp12svn": 0,
"sgxtcbcomp13svn": 0,
"sgxtcbcomp14svn": 0,
"sgxtcbcomp15svn": 0,
"sgxtcbcomp16svn": 0,
"pcesvn": 11
},
"tcbDate": "2021-11-10T00:00:00Z",
"tcbStatus": "UpToDate"
}, {
"tcb": {
"sgxtcbcomp01svn": 4,
"sgxtcbcomp02svn": 4,
"sgxtcbcomp03svn": 3,
"sgxtcbcomp04svn": 3,
"sgxtcbcomp05svn": 255,
"sgxtcbcomp06svn": 255,
"sgxtcbcomp07svn": 0,
"sgxtcbcomp08svn": 0,
"sgxtcbcomp09svn": 0,
"sgxtcbcomp10svn": 0,
"sgxtcbcomp11svn": 0,
"sgxtcbcomp12svn": 0,
"sgxtcbcomp13svn": 0,
"sgxtcbcomp14svn": 0,
"sgxtcbcomp15svn": 0,
"sgxtcbcomp16svn": 0,
"pcesvn": 10
},
"tcbDate": "2020-11-11T00:00:00Z",
"tcbStatus": "OutOfDate"
}, {
"tcb": {
"sgxtcbcomp01svn": 4,
"sgxtcbcomp02svn": 4,
"sgxtcbcomp03svn": 3,
"sgxtcbcomp04svn": 3,
"sgxtcbcomp05svn": 255,
"sgxtcbcomp06svn": 255,
"sgxtcbcomp07svn": 0,
"sgxtcbcomp08svn": 0,
"sgxtcbcomp09svn": 0,
"sgxtcbcomp10svn": 0,
"sgxtcbcomp11svn": 0,
"sgxtcbcomp12svn": 0,
"sgxtcbcomp13svn": 0,
"sgxtcbcomp14svn": 0,
"sgxtcbcomp15svn": 0,
"sgxtcbcomp16svn": 0,
"pcesvn": 5
},
"tcbDate": "2018-01-04T00:00:00Z",
"tcbStatus": "OutOfDate"
}]
},
"signature": "21750a9a4173140379971c9eeaeee8dd27364cae4fdc45e19825bcddb0e5942941cb7cad8067aaaa98c75a0a0cfa9de329eb7d875957bd633a248bc328a0xxxx"
}获取QE身份
请求参数示例：
curl https://sgx-dcap-server.cn-beijing.aliyuncs.com/sgx/certification/v3/qe/identity请求响应示例：
{
"enclaveIdentity": {
"id": "QE",
"version": 2,
"issueDate": "2023-11-01T14:57:38Z",
"nextUpdate": "2023-12-01T14:57:38Z",
"tcbEvaluationDataNumber": 16,
"miscselect": "00000000",
"miscselectMask": "FFFFFFFF",
"attributes": "11000000000000000000000000000000",
"attributesMask": "FBFFFFFFFFFFFFFF0000000000000000",
"mrsigner": "8C4F5775D796503E96137F77C68A829A0056AC8DED70140B081B094490C5xxxx",
"isvprodid": 1,
"tcbLevels": [{
"tcb": {
"isvsvn": 8
},
"tcbDate": "2023-08-09T00:00:00Z",
"tcbStatus": "UpToDate"
},
{
"tcb": {
"isvsvn": 6
},
"tcbDate": "2021-11-10T00:00:00Z",
"tcbStatus": "OutOfDate"
}, {
"tcb": {
"isvsvn": 5
},
"tcbDate": "2020-11-11T00:00:00Z",
"tcbStatus": "OutOfDate"
}, {
"tcb": {
"isvsvn": 4
},
"tcbDate": "2019-11-13T00:00:00Z",
"tcbStatus": "OutOfDate"
}, {
"tcb": {
"isvsvn": 2
},
"tcbDate": "2019-05-15T00:00:00Z",
"tcbStatus": "OutOfDate"
}, {
"tcb": {
"isvsvn": 1
},
"tcbDate": "2018-08-15T00:00:00Z",
"tcbStatus": "OutOfDate"
}
]
},
"signature": "593f79398d6400e62d14f1066e69e4e5bb44ed7544b18713d8020354e7601481681dc812a124672bfedd0e54ab31179fac442400c011ebca6b00c44d805bxxxx"
}获取QvE身份
请求参数示例：
curl https://sgx-dcap-server.cn-beijing.aliyuncs.com/sgx/certification/v3/qve/identity请求响应示例：
{
"enclaveIdentity": {
"id": "QVE",
"version": 2,
"issueDate": "2023-11-01T15:45:01Z",
"nextUpdate": "2023-12-01T15:45:01Z",
"tcbEvaluationDataNumber": 16,
"miscselect": "00000000",
"miscselectMask": "FFFFFFFF",
"attributes": "01000000000000000000000000000000",
"attributesMask": "FBFFFFFFFFFFFFFF0000000000000000",
"mrsigner": "8C4F5775D796503E96137F77C68A829A0056AC8DED70140B081B094490C5xxxx",
"isvprodid": 2,
"tcbLevels": [{
"tcb": {
"isvsvn": 3
},
"tcbDate": "2023-08-09T00:00:00Z",
"tcbStatus": "UpToDate"
}]
},
"signature": "251bb1301cb499cb8161a9b885fad8ceeb06b497f1e4a83c8de2d0f2e9e82c3ce0f22ce2ef6c6a789dcc287bb0a1da12a822a465395b54c9046aacfee7ceaff6"
}