tokens

Documentation

Index

• Constants
• func CodeFromErr(err error) string
• type ConnectionClaims
• type ErrToken
  • func (e *ErrToken) Code() string
  • func (e *ErrToken) Error() string
• type JWTClaims
• type JWTConfig
  • func NewJWT(validity time.Duration, issuer string, s secrets.Secrets) (*JWTConfig, error)
  • func (c *JWTConfig) CreateAndSign(isAck bool, claims *ConnectionClaims, nonce []byte, ...) (token []byte, err error)
  • func (c *JWTConfig) Decode(isAck bool, data []byte, previousCert interface{}) (claims *ConnectionClaims, nonce []byte, publicKey interface{}, err error)
  • func (c *JWTConfig) Randomize(token []byte, nonce []byte) (err error)
  • func (c *JWTConfig) RetrieveNonce(token []byte) ([]byte, error)
• type TokenEngine

Constants

const (
	// MaxServerName must be of UUID size maximum
	MaxServerName = 24
	// NonceLength is the length of the Nonce to be used in the secrets
	NonceLength = 16
)

Functions

func CodeFromErr

func CodeFromErr(err error) string

CodeFromErr returns the collector code from ErrToken

Types

type ConnectionClaims

type ConnectionClaims struct {
	T *policy.TagStore `json:",omitempty"`
	// RMT is the nonce of the remote that has to be signed in the JWT
	RMT []byte `json:",omitempty"`
	// LCL is the nonce of the local node that has to be signed
	LCL []byte `json:",omitempty"`
	// EK is the ephemeral EC key for encryption
	EK []byte `json:",omitempty"`
	// C is the compressed tags in one string
	C string `json:",omitempty"`
	// ID is the source PU ID
	ID string `json:",omitempty"`
	// H is the claims header
	H claimsheader.HeaderBytes `json:",omitempty"`
}

ConnectionClaims captures all the claim information

type ErrToken

type ErrToken struct {
	// contains filtered or unexported fields
}

ErrToken holds error message in string

func (*ErrToken) Code

func (e *ErrToken) Code() string

Code returns collector reason

func (*ErrToken) Error

func (e *ErrToken) Error() string

Error returns error in string

type JWTClaims

type JWTClaims struct {
	*ConnectionClaims
	jwt.StandardClaims
}

JWTClaims captures all the custom clains

type JWTConfig

type JWTConfig struct {
	// ValidityPeriod  period of the JWT
	ValidityPeriod time.Duration
	// Issuer is the server that issues the JWT
	Issuer string
	// contains filtered or unexported fields
}

JWTConfig configures the JWT token generator with the standard parameters. One configuration is assigned to each server

func NewJWT

func NewJWT(validity time.Duration, issuer string, s secrets.Secrets) (*JWTConfig, error)

NewJWT creates a new JWT token processor

func (*JWTConfig) CreateAndSign

func (c *JWTConfig) CreateAndSign(isAck bool, claims *ConnectionClaims, nonce []byte, claimsHeader *claimsheader.ClaimsHeader) (token []byte, err error)

CreateAndSign creates a new token, attaches an ephemeral key pair and signs with the issuer key. It also randomizes the source nonce of the token. It returns back the token and the private key.

func (*JWTConfig) Decode

func (c *JWTConfig) Decode(isAck bool, data []byte, previousCert interface{}) (claims *ConnectionClaims, nonce []byte, publicKey interface{}, err error)

Decode takes as argument the JWT token and the certificate of the issuer. First it verifies the certificate with the local CA pool, and the decodes the JWT if the certificate is trusted

func (*JWTConfig) Randomize

func (c *JWTConfig) Randomize(token []byte, nonce []byte) (err error)

Randomize adds a nonce to an existing token. Returns the nonce

func (*JWTConfig) RetrieveNonce

func (c *JWTConfig) RetrieveNonce(token []byte) ([]byte, error)

RetrieveNonce returns the nonce of a token. It copies the value

type TokenEngine

type TokenEngine interface {
	// CreteAndSign creates a token, signs it and produces the final byte string
	CreateAndSign(isAck bool, claims *ConnectionClaims, nonce []byte, claimsHeader *claimsheader.ClaimsHeader) (token []byte, err error)
	// Decode decodes an incoming buffer and returns the claims and the sender certificate
	Decode(isAck bool, data []byte, previousCert interface{}) (claims *ConnectionClaims, nonce []byte, publicKey interface{}, err error)
	// Randomize inserts a source nonce in an existing token - New nonce will be
	// create every time the token is transmitted as a challenge to the other side
	// even when the token is cached. There should be space in the token already.
	// Returns an error if there is no space
	Randomize([]byte, []byte) (err error)
	// RetrieveNonce retrieves the nonce from the token only. Returns the nonce
	// or an error if the nonce cannot be decoded
	RetrieveNonce([]byte) ([]byte, error)
}

TokenEngine is the interface to the different implementations of tokens