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jwt/VERSION_HISTORY.md

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jwt-go Version History

3.0.0

  • Compatibility Breaking Changes
    • Dropped support for []byte keys when using RSA signing methods. This convenience feature could contribute to security vulnerabilities involving mismatched key types with signing methods.
    • Signature of Keyfunc is now func(*Token) (interface{}, error)
    • ParseFromRequest has been moved to request subpackage and usage has changed
    • The Claims property on Token is now type Claims instead of map[string]interface{}. The default value is type MapClaims, which is an alias to map[string]interface{}. This makes it possible to use a custom type when decoding claims.
  • Other Additions and Changes
    • Added Claims interface type to allow users to decode the claims into a custom type
    • Added ParseWithClaims, which takes a third argument of type Claims. Use this function instead of Parse if you have a custom type you'd like to decode into.
    • Dramatically improved the functionality and flexibility of ParseFromRequest, which is now in the request subpackage
    • Added ParseFromRequestWithClaims which is the FromRequest equivalent of ParseWithClaims
    • Added new interface type Extractor, which is used for extracting JWT strings from http requests. Used with ParseFromRequest and ParseFromRequestWithClaims.
    • Added several new, more specific, validation errors to error type bitmask
    • Moved examples from README to executable example files
    • Signing method registry is now thread safe
    • Added new property to ValidationError, which contains the raw error returned by calls made by parse/verify (such as those returned by keyfunc or json parser)

2.6.0

This will likely be the last backwards compatible release before 3.0.0.

  • Exposed inner error within ValidationError
  • Fixed validation errors when using UseJSONNumber flag
  • Added several unit tests

2.5.0

  • Added support for signing method none. You shouldn't use this. The API tries to make this clear.
  • Updated/fixed some documentation
  • Added more helpful error message when trying to parse tokens that begin with BEARER

2.4.0

  • Added new type, Parser, to allow for configuration of various parsing parameters
    • You can now specify a list of valid signing methods. Anything outside this set will be rejected.
    • You can now opt to use the json.Number type instead of float64 when parsing token JSON
  • Added support for Travis CI
  • Fixed some bugs with ECDSA parsing

2.3.0

  • Added support for ECDSA signing methods
  • Added support for RSA PSS signing methods (requires go v1.4)

2.2.0

  • Gracefully handle a nil Keyfunc being passed to Parse. Result will now be the parsed token and an error, instead of a panic.

2.1.0

Backwards compatible API change that was missed in 2.0.0.

  • The SignedString method on Token now takes interface{} instead of []byte

2.0.0

There were two major reasons for breaking backwards compatibility with this update. The first was a refactor required to expand the width of the RSA and HMAC-SHA signing implementations. There will likely be no required code changes to support this change.

The second update, while unfortunately requiring a small change in integration, is required to open up this library to other signing methods. Not all keys used for all signing methods have a single standard on-disk representation. Requiring []byte as the type for all keys proved too limiting. Additionally, this implementation allows for pre-parsed tokens to be reused, which might matter in an application that parses a high volume of tokens with a small set of keys. Backwards compatibilty has been maintained for passing []byte to the RSA signing methods, but they will also accept *rsa.PublicKey and *rsa.PrivateKey.

It is likely the only integration change required here will be to change func(t *jwt.Token) ([]byte, error) to func(t *jwt.Token) (interface{}, error) when calling Parse.

  • Compatibility Breaking Changes
    • SigningMethodHS256 is now *SigningMethodHMAC instead of type struct
    • SigningMethodRS256 is now *SigningMethodRSA instead of type struct
    • KeyFunc now returns interface{} instead of []byte
    • SigningMethod.Sign now takes interface{} instead of []byte for the key
    • SigningMethod.Verify now takes interface{} instead of []byte for the key
  • Renamed type SigningMethodHS256 to SigningMethodHMAC. Specific sizes are now just instances of this type.
    • Added public package global SigningMethodHS256
    • Added public package global SigningMethodHS384
    • Added public package global SigningMethodHS512
  • Renamed type SigningMethodRS256 to SigningMethodRSA. Specific sizes are now just instances of this type.
    • Added public package global SigningMethodRS256
    • Added public package global SigningMethodRS384
    • Added public package global SigningMethodRS512
  • Moved sample private key for HMAC tests from an inline value to a file on disk. Value is unchanged.
  • Refactored the RSA implementation to be easier to read
  • Exposed helper methods ParseRSAPrivateKeyFromPEM and ParseRSAPublicKeyFromPEM

1.0.2

  • Fixed bug in parsing public keys from certificates
  • Added more tests around the parsing of keys for RS256
  • Code refactoring in RS256 implementation. No functional changes

1.0.1

  • Fixed panic if RS256 signing method was passed an invalid key

1.0.0

  • First versioned release
  • API stabilized
  • Supports creating, signing, parsing, and validating JWT tokens
  • Supports RS256 and HS256 signing methods