I use an API which accepts a Bearer token for authorisation.
For testing, I've been told that I need to generate a signed JWT, but I don't know how to do this.
To acquire a Bearer token I am using an API which returns a message of this form:
{
"access_token": "<long string>",
"token_type": "Bearer",
<other fields>
}
Is this message an unsigned\unencoded JWT? (From this page I assume not.)
Given that I need to pass a signed JWT to the API endpoint, how would I...
Create the JWT if I am in possession of a Bearer token, list of claims, etc?
Pass the signed JWT to the API endpoint instead of the Bearer token?
Related
Hello I'm trying to figure out how to use JWT and axios. I was wondering if you could explain me what's the point to add "bearer" and if I should use "Authorization" or "x-access-token" name please ?
Axios.get(`http://localhost:3001/posts`, {
headers: { 'Authorization': `bearer ${token}` }
}).then((response) => {
console.log(response)
});
If I need to explain JWT Token in pretty simple words then I'll say something like this:
Access tokens are used in token-based authentication to allow access to an API. Access tokens are received after users successfully authenticate and authorize themselves.
And about the Authorization Token:
To set the authorization header, call it like this:
headers: { 'Authorization': `bearer ${token}`
Now the bearer token basically refers to the token type which in this case is a bearer type, read more here
The abstract of the provided link is something like this:
This specification describes how to use bearer tokens in HTTP
requests to access OAuth 2.0 protected resources. Any party in
possession of a bearer token (a "bearer") can use it to get access to
the associated resources (without demonstrating possession of a
cryptographic key). To prevent misuse, bearer tokens need to be
protected from disclosure in storage and in transport.
Now let's get to the Authorization vs x-access-token
Authorization:
The HTTP Authorization request header contains the credentials to authenticate a user agent with a server, usually, but not necessarily, after the server has responded with a 401 Unauthorized status and the WWW-Authenticate header.
Read more about Authorization here
X-Access-Token:
In case of 'x-auth-token' user has to supply username/password for the first time and server returns a access-token in header field 'x-auth-token'. For further sessions this token is exchanged, not the username/password.
Now the conclusion. You'll use whatever your project really requires example if your working on an application which has a lot of users might use you'll have to implement as much security as possible which means using JWT Token and other security steps.
On the other hand if your application only requires one admin login to input some data and you have a pretty small window then you might want to go with session based login.
I am hearing continously token name of different type. Can anybody explain me different type of token with some example.
Access token
Refresh token
Oauth Token
Bearer token
JWT token.
Please forgive me if my question is incorrect. I am highly consfused so looking for the answer.
Right, terminology can be very confusing. OAuth2 is the protocol to allow a client to get an access token to access the user's data on a resource server. The protocol is token agnostic (meaning it does not specify how the token looks). So OAuth token and access token are used interchangeably.
Often, the access token used in the protocol is a structured token in the JSON Web Token (JWT) format. It contains claims (name-value pairs) with info about the user and authentication that the resource server can use.
A bearer token is any token that can be used as the sole way of authenticating. If you have the token, you get access as the user for which it was issued. Nothing else required. OAuth2 typically uses bearer tokens, although some holder-of-key tokens (where you need to prove you acquired the token by signing something) are being added to the protocol. JWT tokens are usually bearer tokens.
Refresh tokens are used in some OAuth2 protocol flows to allow the client to get a new access token when the issued one expires without asking the user to log in again. They are typically just an identifier to some row in the data store of the authorization server.
When access token is expired, it should re-issued refresh token.
At this point, I'm little hesitate which method is better.
For access token, it passed HTTP header per every request.
pass refresh token on HTTP header.
pass refresh token on HTTP POST body(payload).
Which one is recommended?
The jwt specification recommends (but does not require) sending the access tokens in an authorization header of type Bearer. But there is no mention of the refresh tokens.
Refresh tokens are an Oauth2 concept. If you read the Rfc6749 specification, to refresh an access token, the refresh token is sent using a form parameter in a POST request
6. Refreshing an Access Token
...
POST /token HTTP/1.1
Host: server.example.com
Authorization: Basic czZCaGRSa3F0MzpnWDFmQmF0M2JW
Content-Type: application/x-www-form-urlencoded
grant_type=refresh_token&refresh_token=tGzv3JOkF0XG5Qx2TlKWIA
You can use the example of oauth2 as reference (pass it in the body), although if you do not use oauth2, you have no obligation, so use the method to send that best suits your project.
I need to get the REST API from magento. I tried many ways but these are not working for me.
Already I got the Consumer Key and Consumer Secret and Oauth token and oauth_verifier but I don't know how to get access Token.
I mentioned the ways are I am getting the oauth token and oauth verifier but I can't get Access Token.
1.Getting an Unauthorized Request Token
URI localhost/magento/oauth/initiate
Method: POST
Return: Sample Response:
oauth_token=xxqw0r7vo0xxxxxxxxx2sqj3vxwr0h&oauth_token_secret=xxg3x3jxxxxxxxxubjwyf9f1l21itrr&oauth_callback_confirmed=true
2.User Authorization
Uri: localhost/magento/oauth/authorize
Method: Get
Sample Response: /callback?oauth_token=xxxxxxx3lagl3o95xnox9xxxxxxpt3&oauth_verifier=xxxxxxlr5huizxxx6wi4l21zf05eb0
now I have Consumer Key , Secret Key, oAuth Token,oAuth verifier
In step 3 I use
Uri: localhost/magento/oauth/token
Method: POST
but I cannot get Access Token. This URL shows oauth_problem=signature_invalid
I receive two JWTs: an OpenID Connect ID token (id_token) and an Access Token (access_token). The situation with OpenID is more or less clear - I can validate it using a JWKS Endpoint: https://smth.com/JWKS.
as in example (https://bitbucket.org/b_c/jose4j/wiki/JWT%20Examples):
HttpsJwks httpsJkws = new HttpsJwks("https://smth.com/JWKS");
HttpsJwksVerificationKeyResolver httpsJwksKeyResolver = new HttpsJwksVerificationKeyResolver(httpsJkws);
jwtConsumer = new JwtConsumerBuilder()
.setVerificationKeyResolver(httpsJwksKeyResolver)
.setExpectedAudience(...)
.setExpectedIssuer(...)
.build();
The question is how to proceed with the Access Token. I can extract from it the userId and userDetails, but I guess I need also to validate it?
If I try to validate the Access Token the same as for the ID Token, I am getting this error:
UnresolvableKeyException: Unable to find a suitable verification key for JWS w/ header {"alg" : "RS256", "kid":"1"}
And indeed there is no key for "kid" : "1", Also this value "1" seems kind of strange?
Am I doing something totally wrong?
It sounds like you are implementing the role of OpenID Connect client or Relying Party. The two tokens, ID token and access token, serve different purposes and should be handled differently by the client. The ID token is intended for the client and enables authentication of the end-user at the client. The client must validate the ID token (verify the signature and validate claims like exp and aud, etc.) before allowing the end-user in. The access token, however, is for the client to use to access resources or APIs but is not directly intended for the client to consume or validate. The access token is opaque to the client and the client shouldn't care or know about its details. In fact, access tokens aren't always JWTs. In OpenID Connect, the access token is used to call the user info endpoint (with the HTTP header, Authorization: Bearer [access token]) to get more claims/info about the end-user.
The value of "1" for the kid is totally legal but it is referring to a key that the AS/OP and the user info endpoint know about somehow. It is not a key at the OpenID Connect JWKS endpoint. "1" isn't a key that the client needs to know about because the client isn't supposed to directly verify the access token.