SPDM Protocolos suportados

Computadores e servidores

Security Protocol and Data Model over MCTP

O que é SPDM?

SPDM (Security Protocol and Data Model) is a DMTF specification for device authentication, measurement, and attestation transported over MCTP. SPDM enables a verifier (typically a BMC or host) to authenticate managed components such as NICs, GPUs, storage controllers, and FPGAs by exchanging certificates, performing challenge-response authentication, and retrieving device measurements. SPDM is becoming a critical requirement in data center security architectures for establishing hardware root of trust. Engineers debugging platform security need SPDM decode to verify the authentication handshake, certificate chain validation, and measurement reporting between the verifier and responder devices.

SPDM Referência rápida

type Packet-based
signals MCTP transport
features DMTF device authentication and attestation

Instrumentos Acute compatíveis com SPDM

Série TravelLogic

Série TravelLogic
Série LA4000

Série LA4000

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Como analisar SPDM com instrumentos Acute

1

Conecte seu analisador lógico Acute a interface de transporte MCTP transportando trafego SPDM.

2

Conecte um fio terra a referência de terra da placa alvo.

3

No software Acute, selecione o SPDM protocol decoder e atribua os sinais de transporte aos canais de entrada correspondentes.

4

Configure o decodificador para MCTP transport binding.

5

Capture e visualize os SPDM messages showing GET_VERSION, GET_CAPABILITIES, NEGOTIATE_ALGORITHMS, GET_DIGESTS, GET_CERTIFICATE, CHALLENGE, and GET_MEASUREMENTS exchanges.

Perguntas frequentes

Qual taxa de amostragem e necessária para a análise SPDM ?
SPDM is carried over MCTP, so the sample rate is determined by the underlying transport. For SMBus MCTP, 2-4 MHz is sufficient. For Ethernet MCTP, follow the Ethernet PHY interface sample rate requirements. SPDM exchanges are relatively infrequent handshake events, but individual messages (particularly certificate chains) can be large, requiring adequate capture depth.
Por que minha negociação de autenticação SPDM está falhando?
SPDM authentication failures commonly occur during version negotiation, algorithm negotiation, or certificate verification. Capture the full SPDM handshake sequence to identify at which step the failure occurs. Check that both the verifier and responder support a common SPDM version and algorithm set. Certificate chain errors may indicate an expired or untrusted root certificate, or that the responder's certificate does not match the expected identity.
Quantos canais são necessários para a análise de SPDM ?
Channel requirements match the underlying MCTP transport. For SMBus: 2 channels. For Ethernet: 6-12 channels depending on the PHY interface. SPDM adds no physical signals beyond the MCTP transport layer.

Protocolos relacionados

MCTP Control PLDM

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