Sample for JWS-JS with Two Parallel Signature Verification

(STEP1) specify JWS-JS and two ceritificate to verifyFirst JWS Signature to add

verifying JWS-JS signature (two parallel signature)
{ "headers": [ "eyJhbGciOiJSUzI1NiJ9", "eyJhbGciOiJSUzI1NiJ9" ], "payload": "eyJpc3MiOiJqb2UiLA0KICJleHAiOjEzMDA4MTkzODAsDQogImh0dHA6Ly9leGFtcGxlLmNvbS9pc19yb290Ijp0cnVlfQ", "signatures": [ "qCW4l5nfdvBt-yl_OiYRFrKkribqbDbmQ9ULyemAgCNXAAr70hN5-IERIefzySpm6Er4UuX_aXcnIXgMvK-hFMFhLOuJckrDEe1Pz-OzqScvGSJUbeOsd_nB9E2BNVYZrgMESQOifiEyUtWdbzCoMgf9nQg2AEWbVSaPImqQkGp-JZsJsvMUC-3A3RcimGIjLv-A8skyhNufASd6DPgk46Ydqt6vi2L6d2InvZSkhTSsYhbfm9TgrKyA906YHE0zE-asuXAzI1ISPxAjlO8ZhekEvg6teaa-1cSQQdOFj-ZWpqVsEI1YXr7zuvugWQhqfBqqPcT6fP5t3ff8FKwV9w", "qCW4l5nfdvBt-yl_OiYRFrKkribqbDbmQ9ULyemAgCNXAAr70hN5-IERIefzySpm6Er4UuX_aXcnIXgMvK-hFMFhLOuJckrDEe1Pz-OzqScvGSJUbeOsd_nB9E2BNVYZrgMESQOifiEyUtWdbzCoMgf9nQg2AEWbVSaPImqQkGp-JZsJsvMUC-3A3RcimGIjLv-A8skyhNufASd6DPgk46Ydqt6vi2L6d2InvZSkhTSsYhbfm9TgrKyA906YHE0zE-asuXAzI1ISPxAjlO8ZhekEvg6teaa-1cSQQdOFj-ZWpqVsEI1YXr7zuvugWQhqfBqqPcT6fP5t3ff8FKwV9w" ] }

first cerntificate for verification
-----BEGIN CERTIFICATE----- MIIDMjCCAhqgAwIBAgIJAKMfG/B2MKd5MA0GCSqGSIb3DQEBBQUAMBoxCzAJBgNV BAYTAkpQMQswCQYDVQQKEwJ6MzAeFw0xMDA1MzEwNjE4MDhaFw0yMDA1MjgwNjE4 MDhaMBoxCzAJBgNVBAYTAkpQMQswCQYDVQQKEwJ6MzCCASIwDQYJKoZIhvcNAQEB BQADggEPADCCAQoCggEBAOKosPD1rOz6Z5wtgVBKA0XMFxfKavF09f9x3N3LlCcF /6LTXn6/waJq93bTNBESzdw63qQl77sxFORXCVQ1Ad7CPqRbY4ywVw/8yZri9wH4 PdSfae/fg5vuN3EesLissFSceQySHbMBeqEAw84cLvPXdlecdNmlwfS6nV5D8Ijt HkebP8R14AEpfoag3VS/YS6Hd4hmvZ1e3BJQm3JfFFVzTyZ0AH2oimsxfoQnZf7M qyIdCgmeaKYILEyYm6PKhVwZhuD5E+WG4RxNdcGCiC8GRUr2fYnXUT0CtwrYBYgZ 121cFObeu7Z/aTIsx4MqYLHwaHqMga6U7nOHoEgqY7ECAwEAAaN7MHkwHQYDVR0O BBYEFKO4NcUDh3J5c7XD7j4pVXnzIfALMEoGA1UdIwRDMEGAFKO4NcUDh3J5c7XD 7j4pVXnzIfALoR6kHDAaMQswCQYDVQQGEwJKUDELMAkGA1UEChMCejOCCQCjHxvw djCneTAMBgNVHRMEBTADAQH/MA0GCSqGSIb3DQEBBQUAA4IBAQC8JdiwJF22/3nB IxJT/gXXN10cub6O+x9q64ls7dpGpBvbi4/lJgZOsZqoJiswU5WOKZ4MTOmMHe4W e/MHuhcjsgf9EHHYZQ1reBYi/l9mBBbYFGs0zSv1CyjbwkyF36nr/8sWdYf4ZtXQ nzTGvoa6oTOOTmmj3Bwl3CHwonvgAJUCHY/UmWFzH8Sf0dDW7iJBj+ZWfjuSlSQe 2ninrEpfA4v2V1p3LOH+layZLDMJHkNCq8eoU1MbJi07cHxLWtlwliNOiRboaiYl 1wtWR7ZY4HZCPeyb0tanf58rBQAXElaCF3fmfHrlpxoJBsQP1NbFrBs2haOIEZ4E K3V9/Bpi -----END CERTIFICATE-----

second cerntificate for verification
-----BEGIN CERTIFICATE----- MIIDMjCCAhqgAwIBAgIJAKMfG/B2MKd5MA0GCSqGSIb3DQEBBQUAMBoxCzAJBgNV BAYTAkpQMQswCQYDVQQKEwJ6MzAeFw0xMDA1MzEwNjE4MDhaFw0yMDA1MjgwNjE4 MDhaMBoxCzAJBgNVBAYTAkpQMQswCQYDVQQKEwJ6MzCCASIwDQYJKoZIhvcNAQEB BQADggEPADCCAQoCggEBAOKosPD1rOz6Z5wtgVBKA0XMFxfKavF09f9x3N3LlCcF /6LTXn6/waJq93bTNBESzdw63qQl77sxFORXCVQ1Ad7CPqRbY4ywVw/8yZri9wH4 PdSfae/fg5vuN3EesLissFSceQySHbMBeqEAw84cLvPXdlecdNmlwfS6nV5D8Ijt HkebP8R14AEpfoag3VS/YS6Hd4hmvZ1e3BJQm3JfFFVzTyZ0AH2oimsxfoQnZf7M qyIdCgmeaKYILEyYm6PKhVwZhuD5E+WG4RxNdcGCiC8GRUr2fYnXUT0CtwrYBYgZ 121cFObeu7Z/aTIsx4MqYLHwaHqMga6U7nOHoEgqY7ECAwEAAaN7MHkwHQYDVR0O BBYEFKO4NcUDh3J5c7XD7j4pVXnzIfALMEoGA1UdIwRDMEGAFKO4NcUDh3J5c7XD 7j4pVXnzIfALoR6kHDAaMQswCQYDVQQGEwJKUDELMAkGA1UEChMCejOCCQCjHxvw djCneTAMBgNVHRMEBTADAQH/MA0GCSqGSIb3DQEBBQUAA4IBAQC8JdiwJF22/3nB IxJT/gXXN10cub6O+x9q64ls7dpGpBvbi4/lJgZOsZqoJiswU5WOKZ4MTOmMHe4W e/MHuhcjsgf9EHHYZQ1reBYi/l9mBBbYFGs0zSv1CyjbwkyF36nr/8sWdYf4ZtXQ nzTGvoa6oTOOTmmj3Bwl3CHwonvgAJUCHY/UmWFzH8Sf0dDW7iJBj+ZWfjuSlSQe 2ninrEpfA4v2V1p3LOH+layZLDMJHkNCq8eoU1MbJi07cHxLWtlwliNOiRboaiYl 1wtWR7ZY4HZCPeyb0tanf58rBQAXElaCF3fmfHrlpxoJBsQP1NbFrBs2haOIEZ4E K3V9/Bpi -----END CERTIFICATE-----

(STEP3) Append a signature

USAGE

Fill JWS signature, modulus and public exponent of a public key if you need.
Then just press "Verify JWS Signature" button.
If the signature is valid, you will see a dialog 'JWS signature is '*Valid*'. You may see an error dialog if it is malformed signature.
As for JWS signature generation, please see this sample.

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