SPDM Protocolos compatibles

Computadoras y servidores

Security Protocol and Data Model over MCTP

¿Qué es 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 Referencia rápida

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

Instrumentos Acute compatibles con SPDM

¿Listo para analizar este protocolo?

Vea cómo los instrumentos Acute capturan y decodifican este protocolo en tiempo real. Solicite una demo o contacte a nuestro equipo.

¿Cómo analizar SPDM con instrumentos Acute

1

Conecte su analizador lógico Acute a la interfaz de transporte MCTP que transporta trafico SPDM.

2

Conecte un cable de tierra a la referencia de tierra de la placa objetivo.

3

En el software Acute, seleccione el SPDM protocol decoder y asigne las señales de transporte a los canales de entrada correspondientes.

4

Configure el decodificador para MCTP transport binding.

5

Capture y visualice los SPDM messages showing GET_VERSION, GET_CAPABILITIES, NEGOTIATE_ALGORITHMS, GET_DIGESTS, GET_CERTIFICATE, CHALLENGE, and GET_MEASUREMENTS exchanges.

Preguntas frecuentes

Que tasa de muestreo se requiere para el análisis 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 mi negociación de autenticación SPDM esta fallando?
SPDM authentication failures commonly occur during versión 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 versión 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.
Cuantos canales se necesitan para el análisis 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

¿Necesita ayuda para elegir el instrumento adecuado para su protocolo? Contacte a nuestro equipo de ingeniería.