virtcca

Documentation

Index

• Constants
• Variables
• func GetAttestationToken(challenge []byte) ([]byte, error)
• func GetDevCert() ([]byte, error)
• type CCADevCert
• type CVMAttestationCmd
• type CVMMeasurement
• type CVMTSIVersion
  • func GetVersion() (*CVMTSIVersion, error)
• type Collector
  • func NewCollector() *Collector
  • func (c *Collector) CollectEvidence(userdata []byte) (*collectors.Evidence, error)
  • func (c *Collector) Name() string

Constants

const CHALLENGE_SIZE = 64

const GRANULE_SIZE = 4096

const MAX_DEV_CERT_SIZE = 4096

const MAX_MEASUREMENT_SIZE = SHA512_SIZE

* Size in bytes of the largest measurement type that can be supported. * This constant needs to be updated accordingly if new algorithms are supported.

const MAX_TOKEN_GRANULE_COUNT = 2

const SHA256_SIZE = 32

Size in bytes of the SHA256 measurement

const SHA512_SIZE = 64

Size in bytes of the SHA512 measurement

const TSI_DEV = "/dev/tsi"

const TSI_MAGIC = 'T'

Variables

var TMM_GET_ATTESTATION_TOKEN = ioctl.IOWR(TSI_MAGIC, 1, 8264)

var TMM_GET_DEV_CERT = ioctl.IOR(TSI_MAGIC, 2, 4104)

var TMM_GET_TSI_VERSION = ioctl.IOR(TSI_MAGIC, 0, 8)

Ioctl commands

Functions

func GetAttestationToken

func GetAttestationToken(challenge []byte) ([]byte, error)

func GetDevCert

func GetDevCert() ([]byte, error)

Types

type CCADevCert

type CCADevCert struct {
	Size  uint64
	Value [MAX_DEV_CERT_SIZE]byte
}

type CVMAttestationCmd

type CVMAttestationCmd struct {
	Challenge [CHALLENGE_SIZE]byte // input: challenge value
	Token     [GRANULE_SIZE * MAX_TOKEN_GRANULE_COUNT]byte
	TokenSize uint64 // return: token size
}

type CVMMeasurement

type CVMMeasurement struct {
	Index int32
	Value [MAX_MEASUREMENT_SIZE]byte
}

type CVMTSIVersion

type CVMTSIVersion struct {
	Major int32
	Minor int32
}

func GetVersion

func GetVersion() (*CVMTSIVersion, error)

type Collector

type Collector struct {
}

func NewCollector

func NewCollector() *Collector

func (*Collector) CollectEvidence

func (c *Collector) CollectEvidence(userdata []byte) (*collectors.Evidence, error)

func (*Collector) Name

func (c *Collector) Name() string