certs

README

Certs Service

Issues certificates for things. Certs service can create certificates to be used when Mainflux is deployed to support mTLS. Certificate service can create certificates in two modes:

1. Development mode - to be used when no PKI is deployed, this works similar to the make thing_cert
2. PKI mode - certificates issued by PKI, when you deploy Vault as PKI certificate management cert service will proxy requests to Vault previously checking access rights and saving info on successfully created certificate.

Development mode

If MF_CERTS_VAULT_HOST is empty than Development mode is on.

To issue a certificate:

TOK=`curl  -s --insecure -S -X POST http://localhost/tokens -H 'Content-Type: application/json' -d '{"email":"edge@email.com","password":"12345678"}' | jq -r '.token'`

curl -s -S  -X POST  http://localhost:8204/certs -H "Authorization: Bearer $TOK" -H 'Content-Type: application/json'   -d '{"thing_id":<thing_id>, "key_bits":2048, "key_type":"rsa"}'

{
  "ThingID": "",
  "ClientCert": "-----BEGIN CERTIFICATE-----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\nDUMdvYwgj0cUCEu3LA==\n-----END CERTIFICATE-----\n",
  "IssuingCA": "",
  "CAChain": null,
  "ClientKey": "-----BEGIN RSA PRIVATE KEY-----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\nea7KQHTfTdRhOLUzW2yVqLi9pzfTfA6Yqf3U1YD3bgnWrp1VQnjo\n-----END RSA PRIVATE KEY-----\n",
  "PrivateKeyType": "",
  "Serial": "",
  "Expire": "0001-01-01T00:00:00Z"
}

PKI mode

When MF_CERTS_VAULT_HOST is set it is presumed that Vault is installed and certs service will issue certificates using Vault API. First you'll need to set up Vault. To setup Vault follow steps in Build Your Own Certificate Authority (CA).

To setup certs service with Vault following environment variables must be set:

MF_CERTS_VAULT_HOST=vault-domain.com
MF_CERTS_VAULT_PKI_PATH=<vault_pki_path>
MF_CERTS_VAULT_ROLE=<vault_role>
MF_CERTS_VAULT_TOKEN=<vault_acces_token>

For lab purposes you can use docker-compose and script for setting up PKI in https://github.com/mteodor/vault

Issuing certificate is same as in Development mode. In this mode certificates can also be revoked:

curl -s -S -X DELETE http://localhost:8204/certs/revoke -H "Authorization: Bearer $TOK" -H 'Content-Type: application/json'   -d '{"thing_id":"c30b8842-507c-4bcd-973c-74008cef3be5"}'

Documentation

Overview

Package certs contains the domain concept definitions needed to support Mainflux certs service functionality.

Index

• Variables
• type Cert
• type Config
• type Page
• type Repository
• type Revoke
• type Service
  • func New(auth mainflux.AuthServiceClient, certs Repository, sdk mfsdk.SDK, ...) Service

Variables

var (
	// ErrFailedCertCreation failed to create certificate
	ErrFailedCertCreation = errors.New("failed to create client certificate")

	// ErrFailedCertRevocation failed to revoke certificate
	ErrFailedCertRevocation = errors.New("failed to revoke certificate")
)

Types

type Cert

type Cert struct {
	OwnerID        string    `json:"owner_id" mapstructure:"owner_id"`
	ThingID        string    `json:"thing_id" mapstructure:"thing_id"`
	ClientCert     string    `json:"client_cert" mapstructure:"certificate"`
	IssuingCA      string    `json:"issuing_ca" mapstructure:"issuing_ca"`
	CAChain        []string  `json:"ca_chain" mapstructure:"ca_chain"`
	ClientKey      string    `json:"client_key" mapstructure:"private_key"`
	PrivateKeyType string    `json:"private_key_type" mapstructure:"private_key_type"`
	Serial         string    `json:"serial" mapstructure:"serial_number"`
	Expire         time.Time `json:"expire" mapstructure:"-"`
}

Cert defines the certificate paremeters

type Config

type Config struct {
	LogLevel       string
	ClientTLS      bool
	CaCerts        string
	HTTPPort       string
	ServerCert     string
	ServerKey      string
	CertsURL       string
	JaegerURL      string
	AuthURL        string
	AuthTimeout    time.Duration
	SignTLSCert    tls.Certificate
	SignX509Cert   *x509.Certificate
	SignRSABits    int
	SignHoursValid string
	PKIHost        string
	PKIPath        string
	PKIRole        string
	PKIToken       string
}

Config defines the service parameters

type Page

type Page struct {
	Total  uint64
	Offset uint64
	Limit  uint64
	Certs  []Cert
}

ConfigsPage contains page related metadata as well as list

type Repository

type Repository interface {
	// Save  saves cert for thing into database
	Save(ctx context.Context, cert Cert) (string, error)

	// RetrieveAll retrieve issued certificates for given owner ID
	RetrieveAll(ctx context.Context, ownerID string, offset, limit uint64) (Page, error)

	// Remove removes certificate from DB for a given thing ID
	Remove(ctx context.Context, ownerID, thingID string) error

	// RetrieveByThing retrieves issued certificates for a given thing ID
	RetrieveByThing(ctx context.Context, ownerID, thingID string, offset, limit uint64) (Page, error)

	// RetrieveBySerial retrieves a certificate for a given serial ID
	RetrieveBySerial(ctx context.Context, ownerID, serialID string) (Cert, error)
}

Repository specifies a Config persistence API.

type Revoke

type Revoke struct {
	RevocationTime time.Time `mapstructure:"revocation_time"`
}

Revoke defines the conditions to revoke a certificate

type Service

type Service interface {
	// IssueCert issues certificate for given thing id if access is granted with token
	IssueCert(ctx context.Context, token, thingID, ttl string, keyBits int, keyType string) (Cert, error)

	// ListCerts lists certificates issued for a given thing ID
	ListCerts(ctx context.Context, token, thingID string, offset, limit uint64) (Page, error)

	// ListSerials lists certificate serial IDs issued for a given thing ID
	ListSerials(ctx context.Context, token, thingID string, offset, limit uint64) (Page, error)

	// ViewCert retrieves the certificate issued for a given serial ID
	ViewCert(ctx context.Context, token, serialID string) (Cert, error)

	// RevokeCert revokes a certificate for a given serial ID
	RevokeCert(ctx context.Context, token, serialID string) (Revoke, error)
}

Service specifies an API that must be fulfilled by the domain service implementation, and all of its decorators (e.g. logging & metrics).

func New

func New(auth mainflux.AuthServiceClient, certs Repository, sdk mfsdk.SDK, config Config, pki pki.Agent) Service

New returns new Certs service.