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Golang Prin.Parent方法代碼示例

本文整理匯總了Golang中github.com/jlmucb/cloudproxy/go/tao/auth.Prin.Parent方法的典型用法代碼示例。如果您正苦於以下問題:Golang Prin.Parent方法的具體用法?Golang Prin.Parent怎麽用?Golang Prin.Parent使用的例子?那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在github.com/jlmucb/cloudproxy/go/tao/auth.Prin的用法示例。


在下文中一共展示了Prin.Parent方法的1個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Golang代碼示例。

示例1: DeriveManifest

// Derive returns a manifest for a principal based on previously published info
// and/or the principal name itself.
func DeriveManifest(p *auth.Prin) Manifest {
	m := Manifest{}
	parent := p.Parent()
	if parent == nil {
		if p.Type == "tpm" {

			pcr := Manifest{}
			nums, vals, err := ExtractPCRs(*p)
			if err != nil {
				pcr["Status"] = "Unknown"
			} else {
				for i := 0; i < len(nums) && i < len(vals); i++ {
					pcr[fmt.Sprintf("PCR %d", nums[i])] = vals[i]
				}
			}

			aik := Manifest{}
			k, err := ExtractAIK(*p)
			if err != nil {
				aik["Status"] = "Unknown"
			} else {
				aik["Type"] = "RSA"
				aik["Size"] = k.N.BitLen()
				aik["Exponent"] = k.E
				aik["Modulus"] = k.N.Bytes()
			}
			m["Type"] = "Trusted Platform Module"
			m["TPM"] = Manifest{
				"Platform Configuration Registers": pcr,
				"Public Attestation Identity Key":  aik,
			}

		} else if p.Type == "key" {
			key := Manifest{}
			v, err := FromPrincipal(*p)
			if err != nil {
				key["Status"] = "Unknown"
			} else {
				switch v := v.PublicKey().(type) {
				case *ecdsa.PublicKey:
					key["Algorithm"] = "ECDSA"
					key["Curve"] = ecdsaCurveName[v.Curve]
					key["X"] = v.X.Bytes()
					key["Y"] = v.Y.Bytes()
				}
			}
			m["Type"] = "Public Key Principal"
			m["Key"] = key
		} else {
			m["Type"] = "Unrecognized"
		}
		return m
	} else {
		m["Subprincipal Extension"] = p.Ext.String()
	}
	for _, f := range filenames(p) {
		b, err := ioutil.ReadFile(f)
		// TODO(kwalsh) reap expired and malformed files
		if err != nil {
			continue
		}
		var a Attestation
		if err = proto.Unmarshal(b, &a); err != nil {
			glog.Errorf("Ignoring malformed manifest %s\n", f)
			continue
		}
		says, err := a.Validate()
		if err != nil {
			glog.Errorf("Ignoring invalid manifest %s\n", f)
			continue
		}
		if !says.Speaker.Identical(parent) {
			glog.Errorf("Ignoring misplaced manifest %s\n", f)
			continue
		}
		if !says.Active(time.Now().UnixNano()) {
			glog.Errorf("Ignoring expired manifest %s\n", f)
			continue
		}
		m.Extend(p, says.Message)
	}
	m["Parent"] = DeriveManifest(parent)
	return m
}
開發者ID:kevinawalsh,項目名稱:cloudproxy,代碼行數:86,代碼來源:manifest.go


注:本文中的github.com/jlmucb/cloudproxy/go/tao/auth.Prin.Parent方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台,相關代碼片段篩選自各路編程大神貢獻的開源項目,源碼版權歸原作者所有,傳播和使用請參考對應項目的License;未經允許,請勿轉載。