Home > Article > Backend Development > Detailed explanation of IdentityServer4 SigningCredential (RSA certificate encryption) example
IdentityServer4 provides two certificate encryption configurations by default:
services.AddIdentityServer() .AddDeveloperSigningCredential() .AddTemporarySigningCredential();
These two certificate encryption methods are temporarily used every time the project is restarted. , will regenerate a new certificate, which will cause a problem. The access_token
generated before restarting will no longer be applicable after the restart, because the certificate has changed and the corresponding encryption method has also changed. , so the following problem will occur:
services.AddIdentityServer() .AddDeveloperSigningCredential();You can check it out
AddDeveloperSigningCredentialImplement the source code and start the project. IdentityServer4 will generate a
tempkey.rsacertificate file in the project directory:
{ "KeyId": "4e1765de45ef639261115198826dfea7", "Parameters": { "D": "FnB7kIinBgoZDaRqIrRQHEF45FBF9amOrTn8oFdmsxPqJbh11bHeCw11AtCCC4p1mm750onDXeP+yoBHymr/wNn40VmGdhR4hnObHhhw5pyQKECIS41DFDatCZif9uhDgHsOvYHMRVNSapDFoDUvbTE6t7rv4prn2fDt5mzRD9AqdT2HyTcwa/H1haaZNwmy3UevYYy8ya4kKXvjRo6+O7BMBh+yBvHgezQ57Ye/NfZfDMITs4djbqELrYVXCTMltNsWWhQtS62cqvKboxoiXfSm67u/li5Fdusc5Z2zsyt5rE/V8h/ffBvS9N9v0VoDTdFqLYkuul0DvTZ/pqXtMQ==", "DP": "XQDf46csbwu/xX+jwo5VQQ8sKVlVBLuxSNTAbNS6O/aCg9eEjZ58EJ712JgqqORcDMg5JRejN3Zxxoij4roJogyvvw6QSws/H+UTmtuuudgT59OB1TyNGihMVSTLXaw4Kgdj8D8IK8v0okdFEpYugzIIFe1yl0lSzR7fkF+NKC0=", "DQ": "4TvT9ujJ38sTluz0dUSIUD3NCWJOMDKOB/cL3RaDyMf/MTSxNFfWDuuW55F2P8mncHhqLuANcg2l3h8xom+1ucn+ve45JNoWja4fpWQ16rmijPc5yKRe0uAGEaXJiTAEvIxXG18zvNA8Fab+L2X1h+1r35ZLZFYj+EyhkqQ7u5k=", "Exponent": "AQAB", "InverseQ": "nTAEt8v+DlAn6h7Z1Ey1x4Z56OfOmCvY01nte4f3OuSmBXoEaTSoGsXScweAMoSGb0aOG1qpvErtY+JykREeLJxvm4P3DAHL5lJWvDKPvCWJOD9jfzhBUyIhCoqQ8EIHjFxBNKyNefAsVuKdH6R+ApuhpF8XVhR59zLawUQWLEg=", "Modulus": "43j4tvNZy7IxuiDwZzWv9KiS5kSYIeBqEvQ7zkQmRT3IEsseiTv698iQx8qn+de8FeGFEa8O6igFU2VXqFyWJilTuPmeBPJxIMCqfxdxF+96giVSpN4rOFaH/V+IPNTQoYCLFwcUR2saFywUeKWpsRFhQCymsFIk3AlWu7jcqgKHrELsJpn5KVmedb6JZcVKMIfTrcY6hWQz2JNEhTOEI10ZVZ7ueEp2Q2+1/udvp47wPMhzriXJTFP7Y4ozU2THbuwIqCXM5DNBGUpEug0vlCAhwn6nvAo8e9fT0lpUzTd2T8wWzwuHkAgyjB0XTzSYR1fMJIKH1zDs25RqmlepgQ==", "P": "9lGtQw9yXz4nbepESFDxAMfDlmiI9Gj3Q3FecKIgGVVi9WVr19lzBcszhsVybA8n1OyPXHdOyuSWOiVp69ibo5OOXLL4iWzY1VOouXeZrYimxNPvVKlRf8AsVcv3n/0/FEhwY9gnQm4PZYUGwQ96WZ5Z/CWJ9xTORg54Wh79hk0=", "Q": "7Gmr/h33bM+9W4Ygh+tNh3/etECuT/RQ1LMS5uBXxXdvUl6wSm2+ec/CBRobxVHG2pDXdr0pegn0Yz4MprsLtS5KvFg6yopI3Y3TptTGNZPtbd1O7P4i6b+RNOYCq0Y99mkGofqAlAMnDG+SA2EJN2ugPjLelC7GWtfzNG5NMgU=" } }
AddDeveloperSigningCredentialThe code in it will be executed first. Determine whether the
tempkey.rsa certificate file exists. If it does not exist, create a new
tempkey.rsa certificate file. If it exists, use this certificate file.
tempkey.rsa certificate file name:
services.AddIdentityServer() .AddDeveloperSigningCredential("tempkey.rsa");Of course, you can also rename the
tempkey.rsa certificate file.
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