From 14462d5ecd4b404c105aa2f8c57e500841a330b3 Mon Sep 17 00:00:00 2001 From: Vincent Ambo Date: Sat, 21 Dec 2019 01:24:02 +0000 Subject: chore(alcoholic_jwt): Prepare for depot merge --- net/alcoholic_jwt/.gitignore | 4 + net/alcoholic_jwt/Cargo.toml | 16 + net/alcoholic_jwt/LICENSE | 674 +++++++++++++++++++++++++++++++++++++++++ net/alcoholic_jwt/README.md | 62 ++++ net/alcoholic_jwt/src/lib.rs | 451 +++++++++++++++++++++++++++ net/alcoholic_jwt/src/tests.rs | 61 ++++ 6 files changed, 1268 insertions(+) create mode 100644 net/alcoholic_jwt/.gitignore create mode 100644 net/alcoholic_jwt/Cargo.toml create mode 100644 net/alcoholic_jwt/LICENSE create mode 100644 net/alcoholic_jwt/README.md create mode 100644 net/alcoholic_jwt/src/lib.rs create mode 100644 net/alcoholic_jwt/src/tests.rs (limited to 'net') diff --git a/net/alcoholic_jwt/.gitignore b/net/alcoholic_jwt/.gitignore new file mode 100644 index 0000000000..143b1ca014 --- /dev/null +++ b/net/alcoholic_jwt/.gitignore @@ -0,0 +1,4 @@ + +/target/ +**/*.rs.bk +Cargo.lock diff --git a/net/alcoholic_jwt/Cargo.toml b/net/alcoholic_jwt/Cargo.toml new file mode 100644 index 0000000000..40db6b7bd1 --- /dev/null +++ b/net/alcoholic_jwt/Cargo.toml @@ -0,0 +1,16 @@ +[package] +name = "alcoholic_jwt" +description = "Library for validation of RS256 JWTs" +version = "1.0.0" +authors = ["Vincent Ambo "] +keywords = ["jwt", "token", "jwks"] +categories = ["authentication"] +license = "GPL-3.0-or-later" +repository = "https://github.com/aprilabank/alcoholic_jwt" + +[dependencies] +base64 = "0.10" +openssl = "0.10" +serde = "1.0" +serde_derive = "1.0" +serde_json = "1.0" diff --git a/net/alcoholic_jwt/LICENSE b/net/alcoholic_jwt/LICENSE new file mode 100644 index 0000000000..94a9ed024d --- /dev/null +++ b/net/alcoholic_jwt/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If not, see . + +Also add information on how to contact you by electronic and paper mail. + + If the program does terminal interaction, make it output a short +notice like this when it starts in an interactive mode: + + Copyright (C) + This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, your program's commands +might be different; for a GUI interface, you would use an "about box". + + You should also get your employer (if you work as a programmer) or school, +if any, to sign a "copyright disclaimer" for the program, if necessary. +For more information on this, and how to apply and follow the GNU GPL, see +. + + The GNU General Public License does not permit incorporating your program +into proprietary programs. If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/net/alcoholic_jwt/README.md b/net/alcoholic_jwt/README.md new file mode 100644 index 0000000000..b9ff57df4b --- /dev/null +++ b/net/alcoholic_jwt/README.md @@ -0,0 +1,62 @@ +alcoholic_jwt +============= + +[![Build Status](https://travis-ci.org/aprilabank/alcoholic_jwt.svg?branch=master)](https://travis-ci.org/aprilabank/alcoholic_jwt) + +This is a library for **validation** of **RS256** JWTs using keys from +a JWKS. Nothing more, nothing less. + +RS256 is the most commonly used asymmetric signature mechanism for +JWTs, encountered in for example [Google][]'s or [Aprila][]'s APIs. + +The name of the library stems from the potential side-effects of +trying to use the other Rust libraries that are made for similar +purposes. + +## Usage overview + +You are retrieving JWTs from some authentication provider that uses +`RS256` signatures and provides its public keys in [JWKS][] format. + +Example for a token that provides the key ID used for signing in the +[`kid` claim][]: + +```rust +extern crate alcoholic_jwt; + +use alcoholic_jwt::{JWKS, Validation, validate, token_kid}; + +// The function implied here would usually perform an HTTP-GET +// on the JWKS-URL for an authentication provider and deserialize +// the result into the `alcoholic_jwt::JWKS`-struct. +let jwks: JWKS = jwks_fetching_function(); + +let token: String = some_token_fetching_function(); + +// Several types of built-in validations are provided: +let validations = vec![ + Validation::Issuer("auth.test.aprila.no".into()), + Validation::SubjectPresent, +]; + +// If a JWKS contains multiple keys, the correct KID first +// needs to be fetched from the token headers. +let kid = token_kid(&token) + .expect("Failed to decode token headers") + .expect("No 'kid' claim present in token"); + +let jwk = jwks.find(&kid).expect("Specified key not found in set"); + +validate(token, jwk, validations).expect("Token validation has failed!"); +``` + +## Under the hood + +This library aims to only use trustworthy off-the-shelf components to +do the work. Cryptographic operations are provided by the `openssl` +crate, JSON-serialisation is provided by `serde_json`. + +[Google]: https://www.google.com/ +[Aprila]: https://www.aprila.no/ +[JWKS]: https://tools.ietf.org/html/rfc7517 +[`kid` claim]: https://tools.ietf.org/html/rfc7515#section-4.1.4 diff --git a/net/alcoholic_jwt/src/lib.rs b/net/alcoholic_jwt/src/lib.rs new file mode 100644 index 0000000000..c98bee6150 --- /dev/null +++ b/net/alcoholic_jwt/src/lib.rs @@ -0,0 +1,451 @@ +// Copyright (C) 2018 Aprila Bank ASA +// +// alcoholic_jwt is free software: you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation, either version 3 of the +// License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . + +//! Implements a library for for **validation** of **RS256** JWTs +//! using keys from a JWKS. Nothing more, nothing less. +//! +//! The name of the library stems from the potential side-effects of +//! trying to use the other Rust libraries that are made for similar +//! purposes. +//! +//! This library is specifically aimed at developers that consume +//! tokens from services which provide their RSA public keys in +//! [JWKS][] format. +//! +//! ## Usage example (token with `kid`-claim) +//! +//! ```rust +//! # extern crate serde_json; +//! extern crate alcoholic_jwt; +//! +//! use alcoholic_jwt::{JWKS, Validation, validate, token_kid}; +//! +//! # fn some_token_fetching_function() -> &'static str { +//! # "eyJraWQiOiI4ckRxOFB3MEZaY2FvWFdURVZRbzcrVGYyWXpTTDFmQnhOS1BDZWJhYWk0PSIsImFsZyI6IlJTMjU2IiwidHlwIjoiSldUIn0.eyJpc3MiOiJhdXRoLnRlc3QuYXByaWxhLm5vIiwiaWF0IjoxNTM2MDUwNjkzLCJleHAiOjE1MzYwNTQyOTMsInN1YiI6IjQyIiwiZXh0Ijoic21va2V0ZXN0IiwicHJ2IjoiYXJpc3RpIiwic2NwIjoicHJvY2VzcyJ9.gOLsv98109qLkmRK6Dn7WWRHLW7o8W78WZcWvFZoxPLzVO0qvRXXRLYc9h5chpfvcWreLZ4f1cOdvxv31_qnCRSQQPOeQ7r7hj_sPEDzhKjk-q2aoNHaGGJg1vabI--9EFkFsGQfoS7UbMMssS44dgR68XEnKtjn0Vys-Vzbvz_CBSCH6yQhRLik2SU2jR2L7BoFvh4LGZ6EKoQWzm8Z-CHXLGLUs4Hp5aPhF46dGzgAzwlPFW4t9G4DciX1uB4vv1XnfTc5wqJch6ltjKMde1GZwLR757a8dJSBcmGWze3UNE2YH_VLD7NCwH2kkqr3gh8rn7lWKG4AUIYPxsw9CB" +//! # } +//! +//! # fn jwks_fetching_function() -> JWKS { +//! # let jwks_json = "{\"keys\":[{\"kty\":\"RSA\",\"alg\":\"RS256\",\"use\":\"sig\",\"kid\":\"8rDq8Pw0FZcaoXWTEVQo7+Tf2YzSL1fBxNKPCebaai4=\",\"n\":\"l4UTgk1zr-8C8utt0E57DtBV6qqAPWzVRrIuQS2j0_hp2CviaNl5XzGRDnB8gwk0Hx95YOhJupAe6RNq5ok3fDdxL7DLvppJNRLz3Ag9CsmDLcbXgNEQys33fBJaPw1v3GcaFC4tisU5p-o1f5RfWwvwdBtdBfGiwT1GRvbc5sFx6M4iYjg9uv1lNKW60PqSJW4iDYrfqzZmB0zF1SJ0BL_rnQZ1Wi_UkFmNe9arM8W9tI9T3Ie59HITFuyVSTCt6qQEtSfa1e5PiBaVuV3qoFI2jPBiVZQ6LPGBWEDyz4QtrHLdECPPoTF30NN6TSVwwlRbCuUUrdNdXdjYe2dMFQ\",\"e\":\"DhaD5zC7mzaDvHO192wKT_9sfsVmdy8w8T8C9VG17_b1jG2srd3cmc6Ycw-0blDf53Wrpi9-KGZXKHX6_uIuJK249WhkP7N1SHrTJxO0sUJ8AhK482PLF09Qtu6cUfJqY1X1y1S2vACJZItU4Vjr3YAfiVGQXeA8frAf7Sm4O1CBStCyg6yCcIbGojII0jfh2vSB-GD9ok1F69Nmk-R-bClyqMCV_Oq-5a0gqClVS8pDyGYMgKTww2RHgZaFSUcG13KeLMQsG2UOB2OjSC8FkOXK00NBlAjU3d0Vv-IamaLIszO7FQBY3Oh0uxNOvIE9ofQyCOpB-xIK6V9CTTphxw\"}]}"; +//! # serde_json::from_str(jwks_json).unwrap() +//! # } +//! # +//! // The function implied here would usually perform an HTTP-GET +//! // on the JWKS-URL for an authentication provider and deserialize +//! // the result into the `alcoholic_jwt::JWKS`-struct. +//! let jwks: JWKS = jwks_fetching_function(); +//! +//! let token = some_token_fetching_function(); +//! +//! // Several types of built-in validations are provided: +//! let validations = vec![ +//! Validation::Issuer("auth.test.aprila.no".into()), +//! Validation::SubjectPresent, +//! ]; +//! +//! // If a JWKS contains multiple keys, the correct KID first +//! // needs to be fetched from the token headers. +//! let kid = token_kid(&token) +//! .expect("Failed to decode token headers") +//! .expect("No 'kid' claim present in token"); +//! +//! let jwk = jwks.find(&kid).expect("Specified key not found in set"); +//! +//! validate(token, jwk, validations).expect("Token validation has failed!"); +//! ``` +//! +//! [JWKS]: https://tools.ietf.org/html/rfc7517 + +#[macro_use] extern crate serde_derive; + +extern crate base64; +extern crate openssl; +extern crate serde; +extern crate serde_json; + +use base64::{URL_SAFE_NO_PAD, Config, DecodeError}; +use openssl::bn::BigNum; +use openssl::error::ErrorStack; +use openssl::hash::MessageDigest; +use openssl::pkey::{Public, PKey}; +use openssl::rsa::Rsa; +use openssl::sign::Verifier; +use serde::de::DeserializeOwned; +use serde_json::Value; +use std::time::{UNIX_EPOCH, Duration, SystemTime}; + +#[cfg(test)] +mod tests; + +/// URL-safe character set without padding that allows trailing bits, +/// which appear in some JWT implementations. +/// +/// Note: The functions on `base64::Config` are not marked `const`, +/// and the constructors are not exported, which is why this is +/// implemented as a function. +fn jwt_forgiving() -> Config { + URL_SAFE_NO_PAD.decode_allow_trailing_bits(true) +} + +/// JWT algorithm used. The only supported algorithm is currently +/// RS256. +#[derive(Clone, Deserialize, Debug)] +enum KeyAlgorithm { RS256 } + +/// Type of key contained in a JWT. The only supported key type is +/// currently RSA. +#[derive(Clone, Deserialize, Debug)] +enum KeyType { RSA } + +/// Representation of a single JSON Web Key. See [RFC +/// 7517](https://tools.ietf.org/html/rfc7517#section-4). +#[allow(dead_code)] // kty & alg only constrain deserialisation, but aren't used +#[derive(Clone, Debug, Deserialize)] +pub struct JWK { + kty: KeyType, + alg: Option, + kid: Option, + + // Shared modulus + n: String, + + // Public key exponent + e: String, +} + +/// Representation of a set of JSON Web Keys. See [RFC +/// 7517](https://tools.ietf.org/html/rfc7517#section-5). +#[derive(Clone, Debug, Deserialize)] +pub struct JWKS { + // This is a vector instead of some kind of map-like structure + // because key IDs are in fact optional. + // + // Technically having multiple keys with the same KID would not + // violate the JWKS-definition either, but behaviour in that case + // is unspecified. + keys: Vec, +} + +impl JWKS { + /// Attempt to find a JWK by its key ID. + pub fn find(&self, kid: &str) -> Option<&JWK> { + self.keys.iter().find(|jwk| jwk.kid == Some(kid.into())) + } +} + +/// Representation of an undecoded JSON Web Token. See [RFC +/// 7519](https://tools.ietf.org/html/rfc7519). +struct JWT<'a> (&'a str); + +/// Representation of a decoded and validated JSON Web Token. +/// +/// Specific claim fields are only decoded internally in the library +/// for validation purposes, while it is generally up to the consumer +/// of the validated JWT what structure they would like to impose. +pub struct ValidJWT { + /// JOSE header of the JSON Web Token. Certain fields are + /// guaranteed to be present in this header, consult section 5 of + /// RFC7519 for more information. + pub headers: Value, + + /// Claims (i.e. primary data) contained in the JSON Web Token. + /// While there are several registered and recommended headers + /// (consult section 4.1 of RFC7519), the presence of no field is + /// guaranteed in these. + pub claims: Value, +} + +/// Possible token claim validations. This enumeration only covers +/// common use-cases, for other types of validations the user is +/// encouraged to inspect the claim set manually. +pub enum Validation { + /// Validate that the issuer ("iss") claim matches a specified + /// value. + Issuer(String), + + /// Validate that the audience ("aud") claim matches a specified + /// value. + Audience(String), + + /// Validate that a subject value is present. + SubjectPresent, + + /// Validate that the expiry time of the token ("exp"-claim) has + /// not yet been reached. + NotExpired, +} + +/// Possible results of a token validation. +#[derive(Debug)] +pub enum ValidationError { + /// Invalid number of token components (not a JWT?) + InvalidComponents, + + /// Token segments had invalid base64-encoding. + InvalidBase64(DecodeError), + + /// Decoding of the provided JWK failed. + InvalidJWK, + + /// Signature validation failed, i.e. because of a non-matching + /// public key. + InvalidSignature, + + /// An OpenSSL operation failed along the way at a point at which + /// a more specific error variant could not be constructed. + OpenSSL(ErrorStack), + + /// JSON decoding into a provided type failed. + JSON(serde_json::Error), + + /// One or more claim validations failed. This variant contains + /// human-readable validation errors. + InvalidClaims(Vec<&'static str>), +} + +type JWTResult = Result; + +impl From for ValidationError { + fn from(err: ErrorStack) -> Self { ValidationError::OpenSSL(err) } +} + +impl From for ValidationError { + fn from(err: serde_json::Error) -> Self { ValidationError::JSON(err) } +} + +impl From for ValidationError { + fn from(err: DecodeError) -> Self { ValidationError::InvalidBase64(err) } +} + +/// Attempt to extract the `kid`-claim out of a JWT's header claims. +/// +/// This function is normally used when a token provider has multiple +/// public keys in rotation at the same time that could all still have +/// valid tokens issued under them. +/// +/// This is only safe if the key set containing the currently allowed +/// key IDs is fetched from a trusted source. +pub fn token_kid(token: &str) -> JWTResult> { + // Fetch the header component of the JWT by splitting it out and + // dismissing the rest. + let parts: Vec<&str> = token.splitn(2, '.').collect(); + if parts.len() != 2 { + return Err(ValidationError::InvalidComponents); + } + + // Decode only the first part of the token into a specialised + // representation: + #[derive(Deserialize)] + struct KidOnly { + kid: Option, + } + + let kid_only: KidOnly = deserialize_part(parts[0])?; + + Ok(kid_only.kid) +} + +/// Validate the signature of a JSON Web Token and optionally apply +/// claim validations. Signatures are always verified before claims, +/// and if a signature verification passes *all* claim validations are +/// run and returned. +/// +/// If validation succeeds a representation of the token is returned +/// that contains the header and claims as simple JSON values. +/// +/// It is the user's task to ensure that the correct JWK is passed in +/// for validation. +pub fn validate(token: &str, + jwk: &JWK, + validations: Vec) -> JWTResult { + let jwt = JWT(token); + let public_key = public_key_from_jwk(&jwk)?; + validate_jwt_signature(&jwt, public_key)?; + + // Split out all three parts of the JWT this time, deserialising + // the first and second as appropriate. + let parts: Vec<&str> = jwt.0.splitn(3, '.').collect(); + if parts.len() != 3 { + // This is unlikely considering that validation has already + // been performed at this point, but better safe than sorry. + return Err(ValidationError::InvalidComponents) + } + + // Perform claim validations before constructing the valid token: + let partial_claims = deserialize_part(parts[1])?; + validate_claims(partial_claims, validations)?; + + let headers = deserialize_part(parts[0])?; + let claims = deserialize_part(parts[1])?; + let valid_jwt = ValidJWT { headers, claims }; + + Ok(valid_jwt) +} + +// Internal implementation +// +// The functions in the following section are not part of the public +// API of this library. + +/// Decode a single key fragment (base64-url encoded integer) to an +/// OpenSSL BigNum. +fn decode_fragment(fragment: &str) -> JWTResult { + let bytes = base64::decode_config(fragment, jwt_forgiving()) + .map_err(|_| ValidationError::InvalidJWK)?; + + BigNum::from_slice(&bytes).map_err(Into::into) +} + +/// Decode an RSA public key from a JWK by constructing it directly +/// from the public RSA key fragments. +fn public_key_from_jwk(jwk: &JWK) -> JWTResult> { + let jwk_n = decode_fragment(&jwk.n)?; + let jwk_e = decode_fragment(&jwk.e)?; + Rsa::from_public_components(jwk_n, jwk_e).map_err(Into::into) +} + +/// Decode a base64-URL encoded string and deserialise the resulting +/// JSON. +fn deserialize_part(part: &str) -> JWTResult { + let json = base64::decode_config(part, jwt_forgiving())?; + serde_json::from_slice(&json).map_err(Into::into) +} + +/// Validate the signature on a JWT using a provided public key. +/// +/// A JWT is made up of three components (headers, claims, signature) +/// - only the first two are part of the signed data. +fn validate_jwt_signature(jwt: &JWT, key: Rsa) -> JWTResult<()> { + let key = PKey::from_rsa(key)?; + let mut verifier = Verifier::new(MessageDigest::sha256(), &key)?; + + // Split the token from the back to a maximum of two elements. + // There are technically three components using the same separator + // ('.'), but we are interested in the first two together and + // splitting them is unnecessary. + let token_parts: Vec<&str> = jwt.0.rsplitn(2, '.').collect(); + if token_parts.len() != 2 { + return Err(ValidationError::InvalidComponents); + } + + // Second element of the vector will be the signed payload. + let data = token_parts[1]; + + // First element of the vector will be the (encoded) signature. + let sig_b64 = token_parts[0]; + let sig = base64::decode_config(sig_b64, jwt_forgiving())?; + + // Verify signature by inserting the payload data and checking it + // against the decoded signature. + verifier.update(data.as_bytes())?; + + match verifier.verify(&sig)? { + true => Ok(()), + false => Err(ValidationError::InvalidSignature), + } +} + +/// Internal helper struct for claims that are relevant for claim +/// validations. +#[derive(Deserialize)] +struct PartialClaims { + aud: Option, + iss: Option, + sub: Option, + exp: Option, +} + +/// Apply a single validation to the claim set of a token. +fn apply_validation(claims: &PartialClaims, + validation: Validation) -> Result<(), &'static str> { + match validation { + // Validate that an 'iss' claim is present and matches the + // supplied value. + Validation::Issuer(iss) => { + match claims.iss { + None => Err("'iss' claim is missing"), + Some(ref claim) => if *claim == iss { + Ok(()) + } else { + Err("'iss' claim does not match") + } + } + }, + + // Validate that an 'aud' claim is present and matches the + // supplied value. + Validation::Audience(aud) => { + match claims.aud { + None => Err("'aud' claim is missing"), + Some(ref claim) => if *claim == aud { + Ok(()) + } else { + Err("'aud' claim does not match") + } + } + }, + + Validation::SubjectPresent => match claims.sub { + Some(_) => Ok(()), + None => Err("'sub' claim is missing"), + }, + + Validation::NotExpired => match claims.exp { + None => Err("'exp' claim is missing"), + Some(exp) => { + // Determine the current timestamp in seconds since + // the UNIX epoch. + let now = SystemTime::now() + .duration_since(UNIX_EPOCH) + // this is an unrecoverable, critical error. There + // aren't many ways this can occur, other than + // system time being set into the far future or + // this library being used in some sort of future + // museum. + .expect("system time is likely incorrect"); + + // Convert the expiry time (which is also in epoch + // seconds) to a duration. + let exp_duration = Duration::from_secs(exp); + + // The token has not expired if the expiry duration is + // larger than (i.e. in the future from) the current + // time. + if exp_duration > now { + Ok(()) + } else { + Err("token has expired") + } + } + }, + } +} + +/// Apply all requested validations to a partial claim set. +fn validate_claims(claims: PartialClaims, + validations: Vec) -> JWTResult<()> { + let validation_errors: Vec<_> = validations.into_iter() + .map(|v| apply_validation(&claims, v)) + .filter_map(|result| match result { + Ok(_) => None, + Err(err) => Some(err), + }) + .collect(); + + if validation_errors.is_empty() { + Ok(()) + } else { + Err(ValidationError::InvalidClaims(validation_errors)) + } +} diff --git a/net/alcoholic_jwt/src/tests.rs b/net/alcoholic_jwt/src/tests.rs new file mode 100644 index 0000000000..81890986f8 --- /dev/null +++ b/net/alcoholic_jwt/src/tests.rs @@ -0,0 +1,61 @@ +// Copyright (C) 2018 Aprila Bank ASA +// +// alcoholic_jwt is free software: you can redistribute it and/or +// modify it under the terms of the GNU General Public License as +// published by the Free Software Foundation, either version 3 of the +// License, or (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see . + +use super::*; + +#[test] +fn test_fragment_decoding() { + let fragment = "ngRRjNbXgPW29oNtF0JgsyyfTwPyEL0u_X16s453X2AOc33XGFxVKLEQ7R_TiMenaKcr-tPifYqgps_deyi0XOr4I3SOdOMtAVKDZJCANe--CANOHZb-meIfjKhCHisvT90fm5Apd6qPRVsXsZ7A8pmClZHKM5fwZUkBv8NsPLm2Xy2sGOZIiwP_7z8m3j0abUzniPQsx2b3xcWimB9vRtshFHN1KgPUf1ALQ5xzLfJnlFkCxC7kmOxKC7_NpQ4kJR_DKzKFV_r3HxTqf-jddHcXIrrMcLQXCSyeLQtLaz7whQ4F-EfL42z4XgwPr4ji3sct2gWL13EqlbE5DDxLKQ"; + let bignum = decode_fragment(fragment).expect("Failed to decode fragment"); + + let expected = "19947781743618558124649689124245117083485690334420160711273532766920651190711502679542723943527557680293732686428091794139998732541701457212387600480039297092835433997837314251024513773285252960725418984381935183495143908023024822433135775773958512751261112853383693442999603704969543668619221464654540065497665889289271044207667765128672709218996183649696030570183970367596949687544839066873508106034650634722970893169823917299050098551447676778961773465887890052852528696684907153295689693676910831376066659456592813140662563597179711588277621736656871685099184755908108451080261403193680966083938080206832839445289"; + assert_eq!(expected, format!("{}", bignum), "Decoded fragment should match "); +} + +#[test] +fn test_decode_find_jwks() { + let json = "{\"keys\":[{\"kty\":\"RSA\",\"alg\":\"RS256\",\"use\":\"sig\",\"kid\":\"mUjI\\/rIMLLtung35BKZfdbrqtlEAAYJ4JX\\/SKvnLxJc=\",\"n\":\"ngRRjNbXgPW29oNtF0JgsyyfTwPyEL0u_X16s453X2AOc33XGFxVKLEQ7R_TiMenaKcr-tPifYqgps_deyi0XOr4I3SOdOMtAVKDZJCANe--CANOHZb-meIfjKhCHisvT90fm5Apd6qPRVsXsZ7A8pmClZHKM5fwZUkBv8NsPLm2Xy2sGOZIiwP_7z8m3j0abUzniPQsx2b3xcWimB9vRtshFHN1KgPUf1ALQ5xzLfJnlFkCxC7kmOxKC7_NpQ4kJR_DKzKFV_r3HxTqf-jddHcXIrrMcLQXCSyeLQtLaz7whQ4F-EfL42z4XgwPr4ji3sct2gWL13EqlbE5DDxLKQ\",\"e\":\"GK7oLCDbNPAF59LhvyseqcG04hDnPs58qGYolr_HHmaR4lulWJ90ozx6e4Ut363yKG2p9vwvivR5UIC-aLPtqT2qr-OtjhBFzUFVaMGZ6mPCvMKk0AgMYdOHvWTgBSqQtNJTvl1yYLnhcWyoE2fLQhoEbY9qUyCBCEOScXOZRDpnmBtz5I8q5yYMV6a920J24T_IYbxHgkGcEU2SGg-b1cOMD7Rja7vCfV---CQ2pR4leQ0jufzudDoe7z3mziJm-Ihcdrz2Ujy5kPEMdz6R55prJ-ENKrkD_X4u5aSlSRaetwmHS3oAVkjr1JwUNbqnpM-kOqieqHEp8LUmez-Znw\"}]}"; + let jwks: JWKS = serde_json::from_str(json).expect("Failed to decode JWKS"); + let jwk = jwks.find("mUjI/rIMLLtung35BKZfdbrqtlEAAYJ4JX/SKvnLxJc=") + .expect("Failed to find required JWK"); + + public_key_from_jwk(&jwk).expect("Failed to construct public key from JWK"); +} + +#[test] +fn test_token_kid() { + let jwt = "eyJraWQiOiI4ckRxOFB3MEZaY2FvWFdURVZRbzcrVGYyWXpTTDFmQnhOS1BDZWJhYWk0PSIsImFsZyI6IlJTMjU2IiwidHlwIjoiSldUIn0.eyJpc3MiOiJhdXRoLnRlc3QuYXByaWxhLm5vIiwiaWF0IjoxNTM2MDUwNjkzLCJleHAiOjE1MzYwNTQyOTMsInN1YiI6IjQyIiwiZXh0Ijoic21va2V0ZXN0IiwicHJ2IjoiYXJpc3RpIiwic2NwIjoicHJvY2VzcyJ9.gOLsv98109qLkmRK6Dn7WWRHLW7o8W78WZcWvFZoxPLzVO0qvRXXRLYc9h5chpfvcWreLZ4f1cOdvxv31_qnCRSQQPOeQ7r7hj_sPEDzhKjk-q2aoNHaGGJg1vabI--9EFkFsGQfoS7UbMMssS44dgR68XEnKtjn0Vys-Vzbvz_CBSCH6yQhRLik2SU2jR2L7BoFvh4LGZ6EKoQWzm8Z-CHXLGLUs4Hp5aPhF46dGzgAzwlPFW4t9G4DciX1uB4vv1XnfTc5wqJch6ltjKMde1GZwLR757a8dJSBcmGWze3UNE2YH_VLD7NCwH2kkqr3gh8rn7lWKG4AUIYPxsw9CB"; + + let kid = token_kid(&jwt).expect("Failed to extract token KID"); + assert_eq!(Some("8rDq8Pw0FZcaoXWTEVQo7+Tf2YzSL1fBxNKPCebaai4=".into()), + kid, "Extracted KID did not match expected KID"); +} + +#[test] +fn test_validate_jwt() { + let jwks_json = "{\"keys\":[{\"kty\":\"RSA\",\"alg\":\"RS256\",\"use\":\"sig\",\"kid\":\"8rDq8Pw0FZcaoXWTEVQo7+Tf2YzSL1fBxNKPCebaai4=\",\"n\":\"l4UTgk1zr-8C8utt0E57DtBV6qqAPWzVRrIuQS2j0_hp2CviaNl5XzGRDnB8gwk0Hx95YOhJupAe6RNq5ok3fDdxL7DLvppJNRLz3Ag9CsmDLcbXgNEQys33fBJaPw1v3GcaFC4tisU5p-o1f5RfWwvwdBtdBfGiwT1GRvbc5sFx6M4iYjg9uv1lNKW60PqSJW4iDYrfqzZmB0zF1SJ0BL_rnQZ1Wi_UkFmNe9arM8W9tI9T3Ie59HITFuyVSTCt6qQEtSfa1e5PiBaVuV3qoFI2jPBiVZQ6LPGBWEDyz4QtrHLdECPPoTF30NN6TSVwwlRbCuUUrdNdXdjYe2dMFQ\",\"e\":\"DhaD5zC7mzaDvHO192wKT_9sfsVmdy8w8T8C9VG17_b1jG2srd3cmc6Ycw-0blDf53Wrpi9-KGZXKHX6_uIuJK249WhkP7N1SHrTJxO0sUJ8AhK482PLF09Qtu6cUfJqY1X1y1S2vACJZItU4Vjr3YAfiVGQXeA8frAf7Sm4O1CBStCyg6yCcIbGojII0jfh2vSB-GD9ok1F69Nmk-R-bClyqMCV_Oq-5a0gqClVS8pDyGYMgKTww2RHgZaFSUcG13KeLMQsG2UOB2OjSC8FkOXK00NBlAjU3d0Vv-IamaLIszO7FQBY3Oh0uxNOvIE9ofQyCOpB-xIK6V9CTTphxw\"}]}"; + + let jwks: JWKS = serde_json::from_str(jwks_json) + .expect("Failed to decode JWKS"); + + let jwk = jwks.find("8rDq8Pw0FZcaoXWTEVQo7+Tf2YzSL1fBxNKPCebaai4=") + .expect("Failed to find required JWK"); + + let pkey = public_key_from_jwk(&jwk).expect("Failed to construct public key"); + + let jwt = JWT("eyJraWQiOiI4ckRxOFB3MEZaY2FvWFdURVZRbzcrVGYyWXpTTDFmQnhOS1BDZWJhYWk0PSIsImFsZyI6IlJTMjU2IiwidHlwIjoiSldUIn0.eyJpc3MiOiJhdXRoLnRlc3QuYXByaWxhLm5vIiwiaWF0IjoxNTM2MDUwNjkzLCJleHAiOjE1MzYwNTQyOTMsInN1YiI6IjQyIiwiZXh0Ijoic21va2V0ZXN0IiwicHJ2IjoiYXJpc3RpIiwic2NwIjoicHJvY2VzcyJ9.gOLsv98109qLkmRK6Dn7WWRHLW7o8W78WZcWvFZoxPLzVO0qvRXXRLYc9h5chpfvcWreLZ4f1cOdvxv31_qnCRSQQPOeQ7r7hj_sPEDzhKjk-q2aoNHaGGJg1vabI--9EFkFsGQfoS7UbMMssS44dgR68XEnKtjn0Vys-Vzbvz_CBSCH6yQhRLik2SU2jR2L7BoFvh4LGZ6EKoQWzm8Z-CHXLGLUs4Hp5aPhF46dGzgAzwlPFW4t9G4DciX1uB4vv1XnfTc5wqJch6ltjKMde1GZwLR757a8dJSBcmGWze3UNE2YH_VLD7NCwH2kkqr3gh8rn7lWKG4AUIYPxsw9CB".into()); + + validate_jwt_signature(&jwt, pkey).expect("Validation failed unexpectedly"); +} -- cgit 1.4.1