使用 dgrijalva/jwt-go 包生成 jwt 令牌 RS256 时出现问题

Question

为什么我在下面的简单代码中得到了“密钥无效”错误。我已经尝试使用不同的私钥来获得相同的结果。请帮助我，因为我不再知道我做错了什么。package mainimport (    "fmt"    "log"    "github.com/dgrijalva/jwt-go")var key = `-----BEGIN RSA PRIVATE KEY-----MIIEowIBAAKCAQEAuMVb3lrWKlmGIzTaJqtVJi2rPIy7/BkRKlAZ7Q1u0VlyOhzIcXq6zAGsh31uWeJBJFKrZdwA6b2LD5vscnuilHi0nfQZA5l+meQT9LJ7STnfJ7f81CniBIhj5g6dOva9o/ljrLCmRSE4MjJRl3LkydvrHNokzicOAvieq4BYgHVJ2DC7r7cSWrHeIiBIEBb1zAghc1OxtkFkxumva2gmywq0zB0VfzsYrtSpWT77qSNA+UEHH+UCahefkun1uaBcOrEIPUh/j95N3rFTAdIAzFvDqLvLdQbmm/NT78O7izSGvJ1K4rM2fSiecALSROZqOeJy3pf2v6Caqlp2gdDHUQIDAQABAoIBAEeOBrnhq7bS3KOdwC3hhCQ442ubhOFoQ8GDK8clwJjKbvYaV3W69cQzkcEWzjl46YlLipzzyla61LPCypq7Tob5B9lzwowmUWT/csr8o8oD42vaUMtJPQJMX4OkfTdsfpyV5AfokTuMVdr6qaZhFEEoLbEKud4sObzk023PUnbMTMyz2weQsmVLT9gm64K9GHzauoEDWGpr3Boz+mEKo9rhySeK73qXqJFFATl0IB50GpdKondere/XofLQ2kqUB2fFEWIeRXawFd4u6yE5nxjhIvn9pqMhW48vPAYtwTUhY8OxpCwk9U+awBYMvkCnFlrO4TwCNFqE8j3/r6YN5VECgYEA2c0GqQVfwbcgB+8pLmd8H7dq+HqHToTA00pgNAsl/LRFUhkIVyY1YUJkr7nJ3ogzqyjNBz0K4JeaMbMxJRwbxu4SUBgmvc+3h0oa9ibTKtBH4KWAqwCC3TLQFoMXJCf+YJOL8ZNeqQz4rEpCVvJj86p9F4iTRhl5bd7mYqiEjusCgYEA2S1U-----END RSA PRIVATE KEY-----`func main() {    token := jwt.New(jwt.SigningMethodRS256)    jwt, err := token.SignedString(key)    if err != nil {        log.Println(err)    }    fmt.Println("jwt=", jwt)}输出：2021/04/06 16：48：52 密钥无效jwt= 我的密钥有什么问题？我用以下公式生成了它：ssh-keygen -t rsa -P "" -b 2048 -m PEM -f jwtRS256.keyssh-keygen -e -m PEM -f jwtRS256.key > jwtRS256.key.pub

Answer 1

RSA 系列算法需要一个类型为 的密钥。该库具有一个帮助程序函数，其中是一个切片。*rsa.PrivateKeydgrijalva/jwt-gojwt.ParseRSAPrivateKeyFromPEM(keyData)keyData[]byte

该存储库在 rsa_test.go 文件中提供了一些方便的示例。

_{此外，这些示例已经过时了，因为从Go 1.16开始，ioutil软件包已被弃用...}

---

警告！

请注意，它已长时间未维护，并且存在严重的未修复错误。并且不支持Go模块，在版本4之前（无论如何，这只是一个预览）。我强烈建议选择一个不同的库来处理JWT。github.com/dgrijalva/jwt-go

2021 年 6 月更新

现在图书馆有一个官方的社区分支：golang-jwt/jwt，由原始项目的所有者祝福。

Answer 2

作者 https://github.com/lestrrat-go/jwx 在这里.

我刚刚尝试在测试文件的末尾添加您的案例，因此我省略了一些导入，但是您的密钥似乎被jwx解析得很好：

func TestSO66970208(t *testing.T) {

  var src = `-----BEGIN RSA PRIVATE KEY-----

MIIEowIBAAKCAQEAuMVb3lrWKlmGIzTaJqtVJi2rPIy7/BkRKlAZ7Q1u0VlyOhzI

cXq6zAGsh31uWeJBJFKrZdwA6b2LD5vscnuilHi0nfQZA5l+meQT9LJ7STnfJ7f8

1CniBIhj5g6dOva9o/ljrLCmRSE4MjJRl3LkydvrHNokzicOAvieq4BYgHVJ2DC7

r7cSWrHeIiBIEBb1zAghc1OxtkFkxumva2gmywq0zB0VfzsYrtSpWT77qSNA+UEH

H+UCahefkun1uaBcOrEIPUh/j95N3rFTAdIAzFvDqLvLdQbmm/NT78O7izSGvJ1K

4rM2fSiecALSROZqOeJy3pf2v6Caqlp2gdDHUQIDAQABAoIBAEeOBrnhq7bS3KOd

wC3hhCQ442ubhOFoQ8GDK8clwJjKbvYaV3W69cQzkcEWzjl46YlLipzzyla61LPC

ypq7Tob5B9lzwowmUWT/csr8o8oD42vaUMtJPQJMX4OkfTdsfpyV5AfokTuMVdr6

qaZhFEEoLbEKud4sObzk023PUnbMTMyz2weQsmVLT9gm64K9GHzauoEDWGpr3Boz

+mEKo9rhySeK73qXqJFFATl0IB50GpdKondere/XofLQ2kqUB2fFEWIeRXawFd4u

6yE5nxjhIvn9pqMhW48vPAYtwTUhY8OxpCwk9U+awBYMvkCnFlrO4TwCNFqE8j3/

r6YN5VECgYEA2c0GqQVfwbcgB+8pLmd8H7dq+HqHToTA00pgNAsl/LRFUhkIVyY1

YUJkr7nJ3ogzqyjNBz0K4JeaMbMxJRwbxu4SUBgmvc+3h0oa9ibTKtBH4KWAqwCC

3TLQFoMXJCf+YJOL8ZNeqQz4rEpCVvJj86p9F4iTRhl5bd7mYqiEjusCgYEA2S1U

19iAIEiSETtUWEzj/iAKOUZJKl4Kz6PVfUMT1lqodOHsNHexzcQs+W/LW/Z9Jr7u

JtdC0ZZl2UCQ8PBTirsA/gimisnmVhx3mvKXOOO/Cf8RpN1/faTnQJj/Tu+h3aV7

n53Av2wSQPoWnnNB9W515gTYqwiV//CX44lGS7MCgYEAmjSoj4kniB8hBZ0WOi24

2zfg+/a80CH76F1TieWOysHUBtGEbze1OZxpb2WKgQ1MD9Y+e+6DQgr0eFXX6N9i

51DuFFlVLLThy17zge5xOnHnQi3L0Mb24Kg2XooIG2hZmYU94xelQOnXMx0MpUTO

8dl24e+n3kzxBZJ46cdIu2sCgYBzz5yizazlik16Ku07eSVLasKI8FYr5aJWP8Ok

3JRDhmy2h5NyFzIVzDs/eMI09Cig9MgCpl/XbCA7zhZ8pWunWzmYPfyxniDaYqvV

UPAbQjepmP9Lr2JBGiLHa88ZxOfITmqyH2mdqn/BbpuJO2U8//6W/pab/iQfK6mT

iKyXyQKBgGb49CT+zi1VCa4jh0EH78odTwRb/PleAw25CLVSj35MqQCEA2/jU92g

P8iTDU5mDNEaQMvMYN1fKiAPm6hiKp9/5Q02zQWNVzOywgc0L41Yb9K/SqxGwITa

dFwwxhKgBqzgCeIpvKLCGrhMztzPjUL9o4MSdNa92vajcilr8ld6

-----END RSA PRIVATE KEY-----`

  key, err := jwk.ParseString(src, jwk.WithPEM(true))

  if !assert.NoError(t, err, `jwk.ParseString should succeed`) {

    return

  }

  buf, _ := json.MarshalIndent(key, "", "  ")

  t.Logf("%s", buf)

}

这会产生：

lestrrat@finch jwk % go test -run TestSO66970208 -v

=== RUN   TestSO66970208

    jwk_test.go:1472: {

          "keys": [

            {

              "d": "R44GueGrttLco53ALeGEJDjja5uE4WhDwYMrxyXAmMpu9hpXdbr1xDORwRbOOXjpiUuKnPPKVrrUs8LKmrtOhvkH2XPCjCZRZP9yyvyjygPja9pQy0k9Akxfg6R9N2x-nJXkB-iRO4xV2vqppmEUQSgtsQq53iw5vOTTbc9SdsxMzLPbB5CyZUtP2Cbrgr0YfNq6gQNYamvcGjP6YQqj2uHJJ4rvepeokUUBOXQgHnQal0qid16t79eh8tDaSpQHZ8URYh5FdrAV3i7rITmfGOEi-f2moyFbjy88Bi3BNSFjw7GkLCT1T5rAFgy-QKcWWs7hPAI0WoTyPf-vpg3lUQ",

              "dp": "mjSoj4kniB8hBZ0WOi242zfg-_a80CH76F1TieWOysHUBtGEbze1OZxpb2WKgQ1MD9Y-e-6DQgr0eFXX6N9i51DuFFlVLLThy17zge5xOnHnQi3L0Mb24Kg2XooIG2hZmYU94xelQOnXMx0MpUTO8dl24e-n3kzxBZJ46cdIu2s",

              "dq": "c8-cos2s5YpNeirtO3klS2rCiPBWK-WiVj_DpNyUQ4ZstoeTchcyFcw7P3jCNPQooPTIAqZf12wgO84WfKVrp1s5mD38sZ4g2mKr1VDwG0I3qZj_S69iQRoix2vPGcTnyE5qsh9pnap_wW6biTtlPP_-lv6Wm_4kHyupk4isl8k",

              "e": "AQAB",

              "kty": "RSA",

              "n": "uMVb3lrWKlmGIzTaJqtVJi2rPIy7_BkRKlAZ7Q1u0VlyOhzIcXq6zAGsh31uWeJBJFKrZdwA6b2LD5vscnuilHi0nfQZA5l-meQT9LJ7STnfJ7f81CniBIhj5g6dOva9o_ljrLCmRSE4MjJRl3LkydvrHNokzicOAvieq4BYgHVJ2DC7r7cSWrHeIiBIEBb1zAghc1OxtkFkxumva2gmywq0zB0VfzsYrtSpWT77qSNA-UEHH-UCahefkun1uaBcOrEIPUh_j95N3rFTAdIAzFvDqLvLdQbmm_NT78O7izSGvJ1K4rM2fSiecALSROZqOeJy3pf2v6Caqlp2gdDHUQ",

              "p": "2c0GqQVfwbcgB-8pLmd8H7dq-HqHToTA00pgNAsl_LRFUhkIVyY1YUJkr7nJ3ogzqyjNBz0K4JeaMbMxJRwbxu4SUBgmvc-3h0oa9ibTKtBH4KWAqwCC3TLQFoMXJCf-YJOL8ZNeqQz4rEpCVvJj86p9F4iTRhl5bd7mYqiEjus",

              "q": "2S1U19iAIEiSETtUWEzj_iAKOUZJKl4Kz6PVfUMT1lqodOHsNHexzcQs-W_LW_Z9Jr7uJtdC0ZZl2UCQ8PBTirsA_gimisnmVhx3mvKXOOO_Cf8RpN1_faTnQJj_Tu-h3aV7n53Av2wSQPoWnnNB9W515gTYqwiV__CX44lGS7M",

              "qi": "Zvj0JP7OLVUJriOHQQfvyh1PBFv8-V4DDbkItVKPfkypAIQDb-NT3aA_yJMNTmYM0RpAy8xg3V8qIA-bqGIqn3_lDTbNBY1XM7LCBzQvjVhv0r9KrEbAhNp0XDDGEqAGrOAJ4im8osIauEzO3M-NQv2jgxJ01r3a9qNyKWvyV3o"

            }

          ]

        }

--- PASS: TestSO66970208 (0.00s)

PASS

ok      github.com/lestrrat-go/jwx/jwk  0.198s

Answer 3

正确的代码是：

func main() {

    token := jwt.New(jwt.SigningMethodRS256)

    pkey, err := jwt.ParseRSAPrivateKeyFromPEM([]byte(key))

    if err != nil {

        log.Println(err)

    }

    jwt, err := token.SignedString(pkey)

    if err != nil {

        log.Println(err)

    }

    fmt.Println("jwt=", jwt)

}