Created
October 4, 2020 13:15
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#r "nuget: System.IdentityModel.Tokens.Jwt" | |
#r "nuget: Microsoft.IdentityModel.Tokens" | |
open System.IdentityModel.Tokens.Jwt | |
open System | |
open System.IO | |
open System.Text | |
open System.Security.Claims | |
open System.IdentityModel.Tokens.Jwt | |
open Microsoft.IdentityModel.Tokens | |
open System.Security.Cryptography | |
let pubKey = | |
"MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnzyis1ZjfNB0bBgKFMSvvkTtwlvBsaJq7S5wA+kzeVOVpVWwkWdVha4s38XM/pa/yr47av7+z3VTmvDRyAHcaT92whREFpLv9cj5lTeJSibyr/Mrm/YtjCZVWgaOYIhwrXwKLqPr/11inWsAkfIytvHWTxZYEcXLgAXFuUuaS3uF9gEiNQwzGTU1v0FqkqTBr4B8nW3HCN47XUu0t8Y0e+lf4s4OxQawWD79J9/5d3Ry0vbV3Am1FtGJiJvOwRsIfVChDpYStTcHTCMqtvWbV6L11BWkpzGXSW4Hv43qa+GSYOD2QU68Mb59oSk2OB+BtOLpJofmbGEGgvmwyCI9MwIDAQAB" | |
|> Convert.FromBase64String | |
let token = | |
"eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJOYW1lIjoiSm9obiBEb2UiLCJBZG1pbiI6IlRydWUifQ.ma49T3npXQJVMa-afyfFgIPW5PEYhrrYvX2mUA6rmzXHXq_Wy-ij9MLc0b6UxZX8STcRrSC93meIMa4a8LI7UBe0Pxn8IQBrhXztcElMfktMQoQWb7Osx9XwmqD1CaQWwz3FX963B4fQFdxx7GpxdLPj-CSOJZ4OZbk8fWpurVX1QXMLokaJ8C-gLB026jFVJjIV1APSMOnAzx9lcZfU5m3jwVP8HMIc0yJkm4d7IJO1lQjYnUWQkY_DmwR8-vysqo3N5yY57xQUFRoyHwFofDb25fA6SkKcNHrOX0_bc7KzxzWacoPWgtUolThKasWpXgqHipR-uJ4hz6zahInCmw" | |
let validate (token: string) pubKey = | |
use rsa = RSA.Create() | |
let mutable bytesRead = 0 | |
rsa.ImportSubjectPublicKeyInfo(new ReadOnlySpan<byte>(pubKey), &bytesRead) | |
let validationParameters = | |
new TokenValidationParameters(ValidateIssuer = false, | |
ValidateAudience = false, | |
ValidateLifetime = false, | |
ValidateIssuerSigningKey = true, | |
IssuerSigningKey = new RsaSecurityKey(rsa)) | |
let handler = new JwtSecurityTokenHandler() | |
let mutable validatedToken: SecurityToken = upcast new JwtSecurityToken() | |
try | |
handler.ValidateToken(token, validationParameters, &validatedToken) | |
|> ignore | |
printfn "Valid" | |
with ex -> printfn $"{ex}" | |
for i in [ 1 .. 10 ] do | |
validate token pubKey |
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Corresponding bug ticket in dotnet/runtime dotnet/runtime#43087 (comment)