const ( AudienceKey = "aud" ExpirationKey = "exp" IssuedAtKey = "iat" IssuerKey = "iss" JwtIDKey = "jti" NotBeforeKey = "nbf" SubjectKey = "sub" )
func Equal(t1, t2 Token) bool
Equal compares two JWT tokens. Do not use `reflect.Equal` or the like to compare tokens as they will also compare extra detail such as sync.Mutex objects used to control concurrent access.
The comparison for values is currently done using a simple equality ("=="), except for time.Time, which uses time.Equal after dropping the monotonic clock and truncating the values to 1 second accuracy.
if both t1 and t2 are nil, returns true
func ErrInvalidIssuedAt() error
ErrInvalidIssuedAt returns the immutable error used when `iat` claim is not satisfied
func ErrTokenExpired() error
ErrTokenExpired returns the immutable error used when `exp` claim is not satisfied
func ErrTokenNotYetValid() error
func IsValidationError(err error) bool
IsValidationError returns true if the error is a validation error
func RegisterCustomField(name string, object interface{})
RegisterCustomField allows users to specify that a private field be decoded as an instance of the specified type. This option has a global effect.
For example, suppose you have a custom field `x-birthday`, which you want to represent as a string formatted in RFC3339 in JSON, but want it back as `time.Time`.
In that case you would register a custom field as follows
jwt.RegisterCustomField(`x-birthday`, timeT)
Then `token.Get("x-birthday")` will still return an `interface{}`, but you can convert its type to `time.Time`
bdayif, _ := token.Get(`x-birthday`) bday := bdayif.(time.Time)
func SetValidationCtxClock(ctx context.Context, cl Clock) context.Context
func SetValidationCtxSkew(ctx context.Context, dur time.Duration) context.Context
func Settings(options ...GlobalOption)
Settings controls global settings that are specific to JWTs.
func Sign(t Token, alg jwa.SignatureAlgorithm, key interface{}, options ...SignOption) ([]byte, error)
Sign is a convenience function to create a signed JWT token serialized in compact form.
It accepts either a raw key (e.g. rsa.PrivateKey, ecdsa.PrivateKey, etc) or a jwk.Key, and the name of the algorithm that should be used to sign the token.
If the key is a jwk.Key and the key contains a key ID (`kid` field), then it is added to the protected header generated by the signature
The algorithm specified in the `alg` parameter must be able to support the type of key you provided, otherwise an error is returned.
The protected header will also automatically have the `typ` field set to the literal value `JWT`, unless you provide a custom value for it by jwt.WithHeaders option.
func Validate(t Token, options ...ValidateOption) error
Validate makes sure that the essential claims stand.
See the various `WithXXX` functions for optional parameters that can control the behavior of this method.
func ValidationCtxSkew(ctx context.Context) time.Duration
Builder is a convenience wrapper around the New() constructor and the Set() methods to assign values to Token claims. Users can successively call Claim() on the Builder, and have it construct the Token when Build() is called. This alleviates the need for the user to check for the return value of every single Set() method call. Note that each call to Claim() overwrites the value set from the previous call.
type Builder struct {
// contains filtered or unexported fields
}
func NewBuilder() *Builder
func (b *Builder) Audience(v []string) *Builder
func (b *Builder) Build() (Token, error)
Build creates a new token based on the claims that the builder has received so far. If a claim cannot be set, then the method returns a nil Token with a en error as a second return value
func (b *Builder) Claim(name string, value interface{}) *Builder
func (b *Builder) Expiration(v time.Time) *Builder
func (b *Builder) IssuedAt(v time.Time) *Builder
func (b *Builder) Issuer(v string) *Builder
func (b *Builder) JwtID(v string) *Builder
func (b *Builder) NotBefore(v time.Time) *Builder
func (b *Builder) Subject(v string) *Builder
type ClaimPair = mapiter.Pair
type Clock interface { Now() time.Time }
func ValidationCtxClock(ctx context.Context) Clock
ValidationCtxClock returns the Clock object associated with the current validation context. This value will always be available during validation of tokens.
type ClockFunc func() time.Time
func (f ClockFunc) Now() time.Time
type DecodeCtx = json.DecodeCtx
type DecryptParameters interface { Algorithm() jwa.KeyEncryptionAlgorithm Key() interface{} }
EncryptOption describes an Option that can be passed to Encrypt() or (jwt.Serializer).Encrypt
type EncryptOption interface { Option // contains filtered or unexported methods }
func WithJweHeaders(hdrs jwe.Headers) EncryptOption
WithJweHeaders is passed to "jwt.Serializer".Encrypt() method to allow specifying arbitrary header values to be included in the protected header of the JWE message
GlobalOption describes an Option that can be passed to `Settings()`.
type GlobalOption interface { Option // contains filtered or unexported methods }
func WithFlattenAudience(v bool) GlobalOption
WithFlattenAudience specifies if the "aud" claim should be flattened to a single string upon the token being serialized to JSON.
This is sometimes important when a JWT consumer does not understand that the "aud" claim can actually take the form of an array of strings.
The default value is `false`, which means that "aud" claims are always rendered as a arrays of strings. This setting has a global effect, and will change the behavior for all JWT serialization.
type Iterator = mapiter.Iterator
KeySetProvider is an interface for objects that can choose the appropriate jwk.Set to be used when verifying JWTs
type KeySetProvider interface { // KeySetFrom returns the jwk.Set to be used to verify the token. // Keep in mind that the token at the point when the method is called is NOT VERIFIED. // DO NOT trust the contents of the Token too much. For example, do not take the // hint as to which signature algorithm to use from the token itself. KeySetFrom(Token) (jwk.Set, error) }
KeySetProviderFunc is an implementation of KeySetProvider that is based on a function.
type KeySetProviderFunc func(Token) (jwk.Set, error)
func (fn KeySetProviderFunc) KeySetFrom(t Token) (jwk.Set, error)
type Option = option.Interface
ParseOption describes an Option that can be passed to `Parse()`. ParseOption also implements ReadFileOption, therefore it may be safely pass them to `jwt.ReadFile()`
type ParseOption interface { ReadFileOption // contains filtered or unexported methods }
func InferAlgorithmFromKey(v bool) ParseOption
InferAlgorithmFromKey allows jwt.Parse to guess the signature algorithm passed to `jws.Verify()`, in case the key you provided does not have a proper `alg` header.
Compared to providing explicit `alg` from the key this is slower, and in case our heuristics are wrong or outdated, may fail to verify the token. Also, automatic detection of signature verification methods are always more vulnerable for potential attack vectors.
It is highly recommended that you fix your key to contain a proper `alg` header field instead of resorting to using this option, but sometimes it just needs to happen.
Your JWT still need to have an `alg` field, and it must match one of the candidates that we produce for your key
func UseDefaultKey(value bool) ParseOption
UseDefaultKey is used in conjunction with the option WithKeySet to instruct the Parse method to default to the single key in a key set when no Key ID is included in the JWT. If the key set contains multiple keys then the default behavior is unchanged -- that is, the since we can't determine the key to use, it returns an error.
func WithDecrypt(alg jwa.KeyEncryptionAlgorithm, key interface{}) ParseOption
WithDecrypt allows users to specify parameters for decryption using `jwe.Decrypt`. You must specify this if your JWT is encrypted.
func WithFetchBackoff(b backoff.Policy) ParseOption
WithFetchBackoff specifies the `backoff.Policy` object that should be passed to `jws.VerifyAuto()`, which in turn will be passed to `jwk.Fetch()`
This is a wrapper over `jws.WithFetchBackoff()` that can be passed to `jwt.Parse()`, and will be ignored if you spcify `jws.WithJWKSetFetcher()`
func WithFetchWhitelist(wl jwk.Whitelist) ParseOption
WithFetchWhitelist specifies the `jwk.Whitelist` object that should be passed to `jws.VerifyAuto()`, which in turn will be passed to `jwk.Fetch()`
This is a wrapper over `jws.WithFetchWhitelist()` that can be passed to `jwt.Parse()`, and will be ignored if you spcify `jws.WithJWKSetFetcher()`
func WithHTTPClient(httpcl *http.Client) ParseOption
WithHTTPClient specifies the `*http.Client` object that should be passed to `jws.VerifyAuto()`, which in turn will be passed to `jwk.Fetch()`
This is a wrapper over `jws.WithHTTPClient()` that can be passed to `jwt.Parse()`, and will be ignored if you spcify `jws.WithJWKSetFetcher()`
func WithJWKSetFetcher(f jws.JWKSetFetcher) ParseOption
WithJWKSetFetcher specifies the `jws.JWKSetFetcher` object that should be passed to `jws.VerifyAuto()`
This is a wrapper over `jws.WithJWKSetFetcher()` that can be passed to `jwt.Parse()`.
func WithKeySet(set jwk.Set) ParseOption
WithKeySet forces the Parse method to verify the JWT message using one of the keys in the given key set.
The key and the JWT MUST have a proper `kid` field set. The key to use for signature verification is chosen by matching the Key ID of the JWT and the ID of the given key set.
When using this option, keys MUST have a proper 'alg' field set. This is because we need to know the exact algorithm that you (the user) wants to use to verify the token. We do NOT trust the token's headers, because they can easily be tampered with.
However, there _is_ a workaround if you do understand the risks of allowing a library to automatically choose a signature verification strategy, and you do not mind the verification process having to possibly attempt using multiple times before succeeding to verify. See `jwt.InferAlgorithmFromKey` option
If you have only one key in the set, and are sure you want to use that key, you can use the `jwt.WithDefaultKey` option.
If provided with WithKeySetProvider(), this option takes precedence.
func WithKeySetProvider(p KeySetProvider) ParseOption
WithKeySetProvider allows users to specify an object to choose which jwk.Set to use for verification.
If provided with WithKeySet(), WithKeySet() option takes precedence.
func WithPedantic(v bool) ParseOption
WithPedantic enables pedantic mode for parsing JWTs. Currently this only applies to checking for the correct `typ` and/or `cty` when necessary.
func WithToken(t Token) ParseOption
WithToken specifies the token instance that is used when parsing JWT tokens.
func WithTypedClaim(name string, object interface{}) ParseOption
WithTypedClaim allows a private claim to be parsed into the object type of your choice. It works much like the RegisterCustomField, but the effect is only applicable to the jwt.Parse function call which receives this option.
While this can be extremely useful, this option should be used with caution: There are many caveats that your entire team/user-base needs to be aware of, and therefore in general its use is discouraged. Only use it when you know what you are doing, and you document its use clearly for others.
First and foremost, this is a "per-object" option. Meaning that given the same serialized format, it is possible to generate two objects whose internal representations may differ. That is, if you parse one _WITH_ the option, and the other _WITHOUT_, their internal representation may completely differ. This could potentially lead to problems.
Second, specifying this option will slightly slow down the decoding process as it needs to consult multiple definitions sources (global and local), so be careful if you are decoding a large number of tokens, as the effects will stack up.
Finally, this option will also NOT work unless the tokens themselves support such parsing mechanism. For example, while tokens obtained from `jwt.New()` and `openid.New()` will respect this option, if you provide your own custom token type, it will need to implement the TokenWithDecodeCtx interface.
func WithValidate(b bool) ParseOption
WithValidate is passed to `Parse()` method to denote that the validation of the JWT token should be performed after a successful parsing of the incoming payload.
func WithVerify(alg jwa.SignatureAlgorithm, key interface{}) ParseOption
WithVerify forces the Parse method to verify the JWT message using the given key. XXX Should have been named something like WithVerificationKey
func WithVerifyAuto(v bool) ParseOption
WithVerifyAuto specifies that the JWS verification should be performed using `jws.VerifyAuto()`, which in turn attempts to verify the message using values that are stored within the JWS message.
Only passing this option to `jwt.Parse()` will not result in a successful verification. Please make sure to carefully read the documentation in `jws.VerifyAuto()`, and provide the necessary Whitelist object via `jwt.WithFetchWhitelist()`
You might also consider using a backoff policy by using `jwt.WithFetchBackoff()` to control the number of requests being made.
ParseRequestOption describes an Option that can be passed to `ParseRequest()`.
type ParseRequestOption interface { ParseOption // contains filtered or unexported methods }
func WithFormKey(v string) ParseRequestOption
WithFormKey is used to specify header keys to search for tokens.
While the type system allows this option to be passed to jwt.Parse() directly, doing so will have no effect. Only use it for HTTP request parsing functions
func WithHeaderKey(v string) ParseRequestOption
WithHeaderKey is used to specify header keys to search for tokens.
While the type system allows this option to be passed to jwt.Parse() directly, doing so will have no effect. Only use it for HTTP request parsing functions
ReadFileOption describes options that can be passed to ReadFile.
type ReadFileOption interface { Option // contains filtered or unexported methods }
type SerializeCtx interface { Step() int Nested() bool }
type SerializeStep interface { Serialize(SerializeCtx, interface{}) (interface{}, error) }
Serializer is a generic serializer for JWTs. Whereas other conveinience functions can only do one thing (such as generate a JWS signed JWT), Using this construct you can serialize the token however you want.
By default the serializer only marshals the token into a JSON payload. You must set up the rest of the steps that should be taken by the serializer.
For example, to marshal the token into JSON, then apply JWS and JWE in that order, you would do:
serialized, err := jwt.NewSerialer(). Sign(jwa.RS256, key). Encrypt(jwa.RSA_OAEP, key.PublicKey). Serialize(token)
The `jwt.Sign()` function is equivalent to
serialized, err := jwt.NewSerializer(). Sign(...args...). Serialize(token)
type Serializer struct {
// contains filtered or unexported fields
}
func NewSerializer() *Serializer
NewSerializer creates a new empty serializer.
func (s *Serializer) Encrypt(keyalg jwa.KeyEncryptionAlgorithm, key interface{}, contentalg jwa.ContentEncryptionAlgorithm, compressalg jwa.CompressionAlgorithm, options ...EncryptOption) *Serializer
func (s *Serializer) Reset() *Serializer
Reset clears all of the registered steps.
func (s *Serializer) Serialize(t Token) ([]byte, error)
func (s *Serializer) Sign(alg jwa.SignatureAlgorithm, key interface{}, options ...SignOption) *Serializer
func (s *Serializer) Step(step SerializeStep) *Serializer
Step adds a new Step to the serialization process
SignOption describes an Option that can be passed to Sign() or (jwt.Serializer).Sign
type SignOption interface { Option // contains filtered or unexported methods }
func WithHeaders(hdrs jws.Headers) SignOption
WithHeaders is passed to `jwt.Sign()` function, to allow specifying arbitrary header values to be included in the header section of the jws message
This option will be deprecated in the next major version. Use jwt.WithJwsHeaders() instead.
func WithJwsHeaders(hdrs jws.Headers) SignOption
WithJwsHeaders is passed to `jwt.Sign()` function or "jwt.Serializer".Sign() method, to allow specifying arbitrary header values to be included in the header section of the JWE message
Token represents a generic JWT token. which are type-aware (to an extent). Other claims may be accessed via the `Get`/`Set` methods but their types are not taken into consideration at all. If you have non-standard claims that you must frequently access, consider creating accessors functions like the following
func SetFoo(tok jwt.Token) error func GetFoo(tok jwt.Token) (*Customtyp, error)
Embedding jwt.Token into another struct is not recommended, because jwt.Token needs to handle private claims, and this really does not work well when it is embedded in other structure
type Token interface { // Audience returns the value for "aud" field of the token Audience() []string // Expiration returns the value for "exp" field of the token Expiration() time.Time // IssuedAt returns the value for "iat" field of the token IssuedAt() time.Time // Issuer returns the value for "iss" field of the token Issuer() string // JwtID returns the value for "jti" field of the token JwtID() string // NotBefore returns the value for "nbf" field of the token NotBefore() time.Time // Subject returns the value for "sub" field of the token Subject() string // PrivateClaims return the entire set of fields (claims) in the token // *other* than the pre-defined fields such as `iss`, `nbf`, `iat`, etc. PrivateClaims() map[string]interface{} // Get returns the value of the corresponding field in the token, such as // `nbf`, `exp`, `iat`, and other user-defined fields. If the field does not // exist in the token, the second return value will be `false` // // If you need to access fields like `alg`, `kid`, `jku`, etc, you need // to access the corresponding fields in the JWS/JWE message. For this, // you will need to access them by directly parsing the payload using // `jws.Parse` and `jwe.Parse` Get(string) (interface{}, bool) // Set assigns a value to the corresponding field in the token. Some // pre-defined fields such as `nbf`, `iat`, `iss` need their values to // be of a specific type. See the other getter methods in this interface // for the types of each of these fields Set(string, interface{}) error Remove(string) error Clone() (Token, error) Iterate(context.Context) Iterator Walk(context.Context, Visitor) error AsMap(context.Context) (map[string]interface{}, error) }
func New() Token
New creates a standard token, with minimal knowledge of possible claims. Standard claims include"aud", "exp", "iat", "iss", "jti", "nbf" and "sub". Convenience accessors are provided for these standard claims
func Parse(s []byte, options ...ParseOption) (Token, error)
Parse parses the JWT token payload and creates a new `jwt.Token` object. The token must be encoded in either JSON format or compact format.
This function can work with encrypted and/or signed tokens. Any combination of JWS and JWE may be applied to the token, but this function will only attempt to verify/decrypt up to 2 levels (i.e. JWS only, JWE only, JWS then JWE, or JWE then JWS)
If the token is signed and you want to verify the payload matches the signature, you must pass the jwt.WithVerify(alg, key) or jwt.WithKeySet(jwk.Set) option. If you do not specify these parameters, no verification will be performed.
During verification, if the JWS headers specify a key ID (`kid`), the key used for verification must match the specified ID. If you are somehow using a key without a `kid` (which is highly unlikely if you are working with a JWT from a well know provider), you can workaround this by modifying the `jwk.Key` and setting the `kid` header.
If you also want to assert the validity of the JWT itself (i.e. expiration and such), use the `Validate()` function on the returned token, or pass the `WithValidate(true)` option. Validate options can also be passed to `Parse`
This function takes both ParseOption and ValidateOption types: ParseOptions control the parsing behavior, and ValidateOptions are passed to `Validate()` when `jwt.WithValidate` is specified.
func ParseForm(values url.Values, name string, options ...ParseOption) (Token, error)
ParseForm parses a JWT stored in a url.Value.
func ParseHeader(hdr http.Header, name string, options ...ParseOption) (Token, error)
ParseHeader parses a JWT stored in a http.Header.
For the header "Authorization", it will strip the prefix "Bearer " and will treat the remaining value as a JWT.
func ParseReader(src io.Reader, options ...ParseOption) (Token, error)
ParseReader calls Parse against an io.Reader
func ParseRequest(req *http.Request, options ...ParseOption) (Token, error)
ParseRequest searches a http.Request object for a JWT token.
Specifying WithHeaderKey() will tell it to search under a specific header key. Specifying WithFormKey() will tell it to search under a specific form field.
By default, "Authorization" header will be searched.
If WithHeaderKey() is used, you must explicitly re-enable searching for "Authorization" header.
# searches for "Authorization" jwt.ParseRequest(req) # searches for "x-my-token" ONLY. jwt.ParseRequest(req, jwt.WithHeaderKey("x-my-token")) # searches for "Authorization" AND "x-my-token" jwt.ParseRequest(req, jwt.WithHeaderKey("Authorization"), jwt.WithHeaderKey("x-my-token"))
func ParseString(s string, options ...ParseOption) (Token, error)
ParseString calls Parse against a string
func ReadFile(path string, options ...ReadFileOption) (Token, error)
type TokenWithDecodeCtx = json.DecodeCtxContainer
ValidateOption describes an Option that can be passed to Validate(). ValidateOption also implements ParseOption, therefore it may be safely passed to `Parse()` (and thus `jwt.ReadFile()`)
type ValidateOption interface { ParseOption // contains filtered or unexported methods }
func WithAcceptableSkew(dur time.Duration) ValidateOption
WithAcceptableSkew specifies the duration in which exp and nbf claims may differ by. This value should be positive
func WithAudience(s string) ValidateOption
WithAudience specifies that expected audience value. `Validate()` will return true if one of the values in the `aud` element matches this value. If not specified, the value of issuer is not verified at all.
func WithClaimValue(name string, v interface{}) ValidateOption
WithClaimValue specifies the expected value for a given claim
func WithClock(c Clock) ValidateOption
WithClock specifies the `Clock` to be used when verifying claims exp and nbf.
func WithContext(ctx context.Context) ValidateOption
WithContext allows you to specify a context.Context object to be used with `jwt.Validate()` option.
Please be aware that in the next major release of this library, `jwt.Validate()`'s signature will change to include an explicit `context.Context` object.
func WithIssuer(s string) ValidateOption
WithIssuer specifies that expected issuer value. If not specified, the value of issuer is not verified at all.
func WithJwtID(s string) ValidateOption
WithJwtID specifies that expected jti value. If not specified, the value of jti is not verified at all.
func WithMaxDelta(dur time.Duration, c1, c2 string) ValidateOption
WithMaxDelta specifies that given two claims `c1` and `c2` that represent time, the difference in time.Duration must be less than equal to the value specified by `d`. If `c1` or `c2` is the empty string, the current time (as computed by `time.Now` or the object passed via `WithClock()`) is used for the comparison.
`c1` and `c2` are also assumed to be required, therefore not providing either claim in the token will result in an error.
Because there is no way of reliably knowing how to parse private claims, we currently only support `iat`, `exp`, and `nbf` claims.
If the empty string is passed to c1 or c2, then the current time (as calculated by time.Now() or the clock object provided via WithClock()) is used.
For example, in order to specify that `exp` - `iat` should be less than 10*time.Second, you would write
jwt.Validate(token, jwt.WithMaxDelta(10*time.Second, jwt.ExpirationKey, jwt.IssuedAtKey))
If AcceptableSkew of 2 second is specified, the above will return valid for any value of `exp` - `iat` between 8 (10-2) and 12 (10+2).
func WithMinDelta(dur time.Duration, c1, c2 string) ValidateOption
WithMinDelta is almost exactly the same as WithMaxDelta, but force validation to fail if the difference between time claims are less than dur.
For example, in order to specify that `exp` - `iat` should be greater than 10*time.Second, you would write
jwt.Validate(token, jwt.WithMinDelta(10*time.Second, jwt.ExpirationKey, jwt.IssuedAtKey))
The validation would fail if the difference is less than 10 seconds.
func WithRequiredClaim(name string) ValidateOption
WithRequiredClaim specifies that the claim identified the given name must exist in the token. Only the existence of the claim is checked: the actual value associated with that field is not checked.
func WithSubject(s string) ValidateOption
WithSubject specifies that expected subject value. If not specified, the value of subject is not verified at all.
func WithValidator(v Validator) ValidateOption
WithValidator validates the token with the given Validator.
For example, in order to validate tokens that are only valid during August, you would write
validator := jwt.ValidatorFunc(func(_ context.Context, t jwt.Token) error { if time.Now().Month() != 8 { return fmt.Errorf(`tokens are only valid during August!`) } return nil }) err := jwt.Validate(token, jwt.WithValidator(validator))
type ValidationError interface { error // contains filtered or unexported methods }
func NewValidationError(err error) ValidationError
Validator describes interface to validate a Token.
type Validator interface { // Validate should return an error if a required conditions is not met. // This method will be changed in the next major release to return // jwt.ValidationError instead of error to force users to return // a validation error even for user-specified validators Validate(context.Context, Token) error }
func ClaimContainsString(name, value string) Validator
ClaimContainsString can be used to check if the claim called `name`, which is expected to be a list of strings, contains `value`. Currently because of the implementation this will probably only work for `aud` fields.
func ClaimValueIs(name string, value interface{}) Validator
ClaimValueIs creates a Validator that checks if the value of claim `name` matches `value`. The comparison is done using a simple `==` comparison, and therefore complex comparisons may fail using this code. If you need to do more, use a custom Validator.
func IsExpirationValid() Validator
IsExpirationValid is one of the default validators that will be executed. It does not need to be specified by users, but it exists as an exported field so that you can check what it does.
The supplied context.Context object must have the "clock" and "skew" populated with appropriate values using SetValidationCtxClock() and SetValidationCtxSkew()
func IsIssuedAtValid() Validator
IsIssuedAtValid is one of the default validators that will be executed. It does not need to be specified by users, but it exists as an exported field so that you can check what it does.
The supplied context.Context object must have the "clock" and "skew" populated with appropriate values using SetValidationCtxClock() and SetValidationCtxSkew()
func IsNbfValid() Validator
IsNbfValid is one of the default validators that will be executed. It does not need to be specified by users, but it exists as an exported field so that you can check what it does.
The supplied context.Context object must have the "clock" and "skew" populated with appropriate values using SetValidationCtxClock() and SetValidationCtxSkew()
func IsRequired(name string) Validator
IsRequired creates a Validator that checks if the required claim `name` exists in the token
func MaxDeltaIs(c1, c2 string, dur time.Duration) Validator
MaxDeltaIs implements the logic behind `WithMaxDelta()` option
func MinDeltaIs(c1, c2 string, dur time.Duration) Validator
MinDeltaIs implements the logic behind `WithMinDelta()` option
ValidatorFunc is a type of Validator that does not have any state, that is implemented as a function
type ValidatorFunc func(context.Context, Token) error
func (vf ValidatorFunc) Validate(ctx context.Context, tok Token) error
type VerifyParameters interface { Algorithm() jwa.SignatureAlgorithm Key() interface{} }
type Visitor = iter.MapVisitor
type VisitorFunc = iter.MapVisitorFunc