Question

我正在使用Keycloak来处理登录并生成JWT令牌。我需要能够验证我发送到我的REST API服务的访问令牌。最佳做法是使用JWT秘密直接验证令牌，而不是将其发送到Keycloak服务器进行验证。有很多Java例子可以做到这一点，但我需要能够使用python或ruby来验证这一点。

我尝试了以下python签名验证，但收到ValueError: Could not unserialize key data.错误我还尝试在https://jwt.io调试器中输入公钥，但也获得了无效签名。

#!/usr/bin/env python3

import jwt

# Public key from Keycloak realm -> Keys -> Public Key -> (view)
public_key = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu77nUtVw7SIIcUTSiStzMPB7BGB/9eS+CpppsUaiyZyWCXlrALT3YdqneSlpX4Ta+0wvhOkKQtoSS8dCH8GIi7esAmfdHetHfRgeDXHAlXo8HIzshUzODg3ysT7j+Ha3eJsO+LNS/omHDhsarP8Z2eThW876iKJCCc/mB76a6u1e4Id+52K5lG++m8Pn4Gs+cqd2sKUKcMJ9CkJ6dBIdGlXHMoOHj4C33SPrEG/vEBv5cu0l5PP3RiBAuaZHpLKzfIiaLOpj/k4dD/weVt5gwTIJn16AEgPD7173Xef0HgoPlQInDFrJwsGpYCnIPZWSxRbvjKkya2Auj0QZyMCrXwIDAQAB"

# Keycloak JWT RS256 access-token
access_token = "eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIiwia2lkIiA6ICI0LVlJOUlVc2R6NGM0SHoycXczT0xXZ0I0eHc2eFd4T29XdktVT2FvV3FzIn0.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.Q7s-qTcJyH69Ebof8pQI1kZzeT8olwQnRJ06uas5TP2isacxOheHnJ9ixEvqTrr-iefmYMwx41jM68NCs6l8IBNHqv7t5-ediizx4ianMiXr7oZ_1oAT9hkLyrpv9iF2IZBtzNJz0GQAnDYe1moLOLuzqwvcUaWgmzRY95xvzo4kbE8OkeZiMpD_cDmp3_vKOsdn3B6ybJ9TXtea55A29pQzsvAM_6lHeyxTCisipOtu_ubnUOamkYSpxLwWZXgI1w7iz-igt-n7xtlFhUpra239yn9uly9iuBtlgnc3TFDmZn-XRq_PODDJNJeaQXDRaDqnRQhXsoObxCaPqXDQ3A"

access_token_json = jwt.decode(access_token, public_key)
print(access_token_json)

Answer 1

要验证访问令牌，我执行了以下操作：

我重置了到期时间，因此我不必担心超时是一个复杂的因素。
我必须将BEGIN / END页眉/页脚添加到pubkey（其中有两个不同的版本，基于pubkey的编码-eg'BEGIN RSA PUBLIC KEY'不是正确的版本Keycloak pubkey编码）：

最后 - 我必须将audience ='belmgr'添加到python脚本的jwt.decode


    ## Python script 
    #!/usr/bin/env python3

    import jwt

    public_key = """-----BEGIN PUBLIC KEY-----
    MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAu77nUtVw7SIIcUTSiStzMPB7BGB/9eS+CpppsUaiyZyWCXlrALT3YdqneSlpX4Ta+0wvhOkKQtoSS8dCH8GIi7esAmfdHetHfRgeDXHAlXo8HIzshUzODg3ysT7j+Ha3eJsO+LNS/omHDhsarP8Z2eThW876iKJCCc/mB76a6u1e4Id+52K5lG++m8Pn4Gs+cqd2sKUKcMJ9CkJ6dBIdGlXHMoOHj4C33SPrEG/vEBv5cu0l5PP3RiBAuaZHpLKzfIiaLOpj/k4dD/weVt5gwTIJn16AEgPD7173Xef0HgoPlQInDFrJwsGpYCnIPZWSxRbvjKkya2Auj0QZyMCrXwIDAQAB
    -----END PUBLIC KEY-----"""

    access_token = "eyJhbGciOiJSUzI1NiIsInR5cCIgOiAiSldUIiwia2lkIiA6ICI0LVlJOUlVc2R6NGM0SHoycXczT0xXZ0I0eHc2eFd4T29XdktVT2FvV3FzIn0.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.DfC1c6BVBZ8Bgwu6CYGBsWp4T0dqltwAQ84E1Q0LdjFxvtVeDOF8rBIdgkr7rMCHObZWsEotljSR4BZzCvfDNmdk_25sedvi-ZHXTP0-nSeHczIXBstZ8p257A6-fEiIcG5CRoClHMI317bVGjNkzAV7l8kuBhr0bfrDedxpvKo3EQah4MrOF7-JXQGPAWlLDV1E9zsrT99Vm_XL58M-ur8q7N-B-CmOBV2GGsMEosTDK_-U-mattEN6PMNiG004Ryg0iPDM4-kr1AQsPE_wHBYf81_-vrqs7ec--0ShJYdC8-eBbuf9xVixNQVPRl7mnktaKA19YXdzdCwcQa6crw"

    access_token_json = jwt.decode(access_token, public_key, audience='belmgr')
    print(access_token_json)

Answer 2

我想补充这些知识，以防其他人陷入困境。

直接从Keycloak领域->密钥->公共密钥->（视图）复制的public_key值不起作用。取而代之的是，我必须使用URL获取由Keycloak为该领域公开的公钥：

https://<< my keycloak url >>/auth/realms/<< my realm >>/

此网址返回的json包含领域“ my realm”的“ public_key”值。按照所选答案中建议的方式使用公钥的值。

但是，您还需要确保您的受众价值与解码调用正确。对于我来说，值“ belmgr”。我通过使用jwt.io并解码了access_token来找到了所需的听众，并且在有效载荷数据中找到了：

{ ..."aud": "account",... }

在观众工作时使用“帐户”。

# wrong audience - FAIL
access_token_json = jwt.decode(access_token, public_key, audience='belmgr')

# right audience - SUCCESS
access_token_json = jwt.decode(access_token, public_key, audience='account')

Keycloak访问令牌的独立验证

2 个答案: