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May 29, 2023 23:44
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Save tsandall/c7b57b5f96b77765ef416fba6f8e9f3e to your computer and use it in GitHub Desktop.
Example of verifying JWTs signed with RS256 in OPA
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package example | |
cert = `-----BEGIN CERTIFICATE----- | |
MIIFiDCCA3ACCQCGV6XsfG/oRTANBgkqhkiG9w0BAQUFADCBhTELMAkGA1UEBhMC | |
VVMxEzARBgNVBAgMCkNhbGlmb3JuaWExFTATBgNVBAcMDFJlZHdvb2QgQ2l0eTEO | |
MAwGA1UECgwFU3R5cmExDDAKBgNVBAsMA0RldjESMBAGA1UEAwwJbG9jYWxob3N0 | |
MRgwFgYJKoZIhvcNAQkBFglhc2hAc3R5cmEwHhcNMTgwMzA2MDAxNTU5WhcNMTkw | |
MzA2MDAxNTU5WjCBhTELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlmb3JuaWEx | |
FTATBgNVBAcMDFJlZHdvb2QgQ2l0eTEOMAwGA1UECgwFU3R5cmExDDAKBgNVBAsM | |
A0RldjESMBAGA1UEAwwJbG9jYWxob3N0MRgwFgYJKoZIhvcNAQkBFglhc2hAc3R5 | |
cmEwggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQDucnAwTRA0zqDQ671L | |
KWOVwhjhycFyzyhZUd7vhsnslOBiYM6TYIDXhETfAk2RQoRE/9xF16woMD8FOglc | |
lSuhi+GNfFRif6LfArm84ZFj1ZS1MX2logikhXhRJQ7AOHe5+ED0re3KH5lWyqfz | |
R6bQuPYwTQSBJy6Tq7T9RiOM29yadCX64OaCEbzEFmHtNlbb5px4zCVvgskg/fpV | |
GGCMpAYjGDatbxE5eAloVs1EJuI5RSqWr1JRm6EejxM04BFdfGn1HgWrsKXtlvBa | |
00/AC0zXL5n6LK7+L3WbRguVTZcE4Yu70gDwhmM+VsKeT9LKClX003BNj0NJDRB9 | |
dw9MaWxsXDNHNOWEfbnASXeP7ZRv3D81ftij6P8SL14ZnxyrRty8TAN4ij3wd41l | |
astRQCtrJFi+HzO606XOp6HDzBoWT0DGl8Sn2hZ6RLPyBnD04vvvcSGeCVjHGOQ8 | |
c3OTroK58u5MR/q4T00sTkeeVAxuKoEWKsjIBYYrJTe/a2mEq9yiDGbPNYDnWnQZ | |
jSUZm+Us23Y2sm/agZ5zKXcEuoecGL6sYCixr/xeB9BPxEiTthH+0M8OY99qpIhz | |
Smj41wdgQfzZi/6B8pIr77V/KywYKxJEmzw8Uy48aC/rZ8WsT8QdKwclo1aiNJhx | |
79OvGbZFoeHD/w7igpx+ttpF/wIDAQABMA0GCSqGSIb3DQEBBQUAA4ICAQC3wWUs | |
fXz+aSfFVz+O3mLFkr65NIgazbGAySgMgMNVuadheIkPL4k21atyflfpx4pg9FGv | |
40vWCLMajpvynfz4oqah0BACnpqzQ8Dx6HYkmlXK8fLB+WtPrZBeUEsGPKuJYt4M | |
d5TeY3VpNgWOPXmnE4lvxHZqh/8OwmOpjBfC9E3e2eqgwiwOkXnMaZEPgKP6JiWk | |
EFaQ9jgMQqJZnNcv6NmiqqsZeI0/NNjBpkmEWQl+wLegVusHiQ0FMBMQ0taEo21r | |
zUwHoNJR3h3wgGQiKxKOH1FUKHBV7hEqObLraD/hfG5xYucJfvvAAP1iH0ycPs+9 | |
hSccrn5/HY1c9AZnW8Kh7atp/wFP+sHjtECWK/lUmXfhASS293hprCpJk2n9pkmR | |
ziXKJhjwkxlC8NcHuiVfaxdfDa4+1Qta2gK7GEypbvLoEmIt/dsYUsxUg84lwJJ9 | |
nyC/pfZ5a8wFSf186JeVH4kHd3bnkzlQz460HndOMSJ/Xi1wSfuZlOVupFf8TVKl | |
p4j28MTLH2Wqx50NssKThdaX6hoCiMqreYa+EVaN1f/cIGQxZSCzdzMCKqdB8lKB | |
3Eax+5zsIa/UyPwGxZcyXBRHAlz5ZnkjuRxInyiMkBWWz3IZXjTe6Fq8BNd2UWNc | |
w35+2nO5n1LKXgR2+nzhZUOk8TPsi9WUywRluQ== | |
-----END CERTIFICATE-----` | |
good_token = `eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJmb28iOiJiYXIiLCJuYmYiOjE0NDQ0Nzg0MDB9.N0-EVdv5pvUfZYFRzMGnsWpNLHgwMEgViPwpuLBEtt32682OgnOK-N4X-2gpQEjQIbUr0IFym8YsRQU9GZvqQP72Sd6yOQNGSNeE74DpUZCAjBa9SBIb1UlD2MxZB-e7YJiEyo7pZhimaqorXrgorlaXYGMvsCFWDYmBLzGaGYaGJyEpkZHzHb7ujsDrJJjdEtDV3kh13gTHzLPvqnoXuuxelXye_8LPIhvgDy52gT4shUEso71pJCMv_IqAR19ljVE17lJzoi6VhRn6ReNUE-yg4KfCO4Ypnuu-mcQr7XtmSYoWkX72L5UQ-EyWkoz-w0SYKoJTPzHkTL2thYStksVpeNkGuck25aUdtrQgmPbao0QOWBFlkg03e6mPCD2-aXOt1ofth9mZGjxWMHX-mUqHaNmaWM3WhRztJ73hWrmB1YOdYQtOEHejfvR_td5tqIw4W6ufRy2ScOypGQe7kNaUZxpgxZ1927ZGNiQgawIOAQwXOcFx1JNSEIeg55-cYJrHPxsXGOB9ZxW-qnswmFJp474iUVXjzGhLexJDXBwvKGs_O3JFjMsvyV9_hm7bnQU0vG_HgPYs5i9VOHRMujq1vFBcm52TFVOBGdWaGfb9RRdLLYvVkJLk0Poh19rsCWb7-Vc3mAaGGpvuk4Wv-PnGGNC-V-FQqIbijHDrn_g` | |
bad_token = `eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJmb28iOiJiYXIiLCJuYmYiOjE0NDQ0Nzg0MDB9.Yt89BjaPCNgol478rYyH66-XgkHos02TsVwxLH3ZlvOoIVjbhYW8q1_MHehct1-yBf1UOX3g-lUrIjpoDtX1TfAESuaWTjYPixRvjfJ-Nn75JF8QuAl5PD27C6aJ4PjUPNfj0kwYBnNQ_oX-ZFb781xRi7qRDB6swE4eBUxzHqKUJBLaMM2r8k1-9iE3ERNeqTJUhV__p0aSyRj-i62rdZ4TC5nhxtWodiGP4e4GrYlXkdaKduK63cfdJF-kfZfTsoDs_xy84pZOkzlflxuNv9bNqd-3ISAdWe4gsEvWWJ8v70-QWkydnH8rhj95DaqoXrjfzbOgDpKtdxJC4daVPKvntykzrxKhZ9UtWzm3OvJSKeyWujFZlldiTfBLqNDgdi-Boj_VxO5Pdh-67lC3L-pBMm4BgUqf6rakBQvoH7AV6zD5CbFixh7DuqJ4eJHHItWzJwDctMrV3asm-uOE1E2B7GErGo3iX6S9Iun_kvRUp6kyvOaDq5VvXzQOKyLQIQyHGGs0aIV5cFI2IuO5Rt0uUj5mzPQrQWHgI4r6Mc5bzmq2QLxBQE8OJ1RFhRpsuoWQyDM8aRiMQIJe1g3x4dnxbJK4dYheYblKHFepScYqT1hllDp3oUNn89sIjQIhJTe8KFATu4K8ppluys7vhpE2a_tq8i5O0MFxWmsxN4Q` | |
test_good_token { | |
io.jwt.verify_rs256(good_token, cert) | |
} | |
test_bad_token { | |
not io.jwt.verify_rs256(bad_token, cert) | |
} | |
test_verify_and_decode { | |
io.jwt.verify_rs256(good_token, cert) | |
io.jwt.decode(good_token, [header,payload,sig]) | |
payload.foo == "bar" | |
} |
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If you evaluate the 2nd expression in the last rule you will see the values for the header, payload, and sig: