To install the argon.org CA certificate select this link and follow the prompts your browser gives you. If it asks you whether to open or save the file, choose "open". If this doesn't work with your browser (it only lets you save the file, or opening it displays it on the screen instead of opening a special window), there are some good browser-specific notes at the Rutgers RULink project. If you have any questions please contact ca@argon.org.
Here's the certificate revocation list (CRL).
For most people, the prefered way to access the certificate is via the link above. Here are the certificate in PEM format and CRL in PEM format for when they're useful.
-----BEGIN CERTIFICATE----- MIIDaDCCAtGgAwIBAgIBADANBgkqhkiG9w0BAQQFADCBhTELMAkGA1UEBhMCVVMx ETAPBgNVBAgTCFZpcmdpbmlhMRgwFgYDVQQHEw9DaGFybG90dGVzdmlsbGUxFTAT BgNVBAoTDGFyZ29uLm9yZyBDQTEVMBMGA1UEAxMMYXJnb24ub3JnIENBMRswGQYJ KoZIhvcNAQkBFgxjYUBhcmdvbi5vcmcwHhcNMDIwODIyMTIxOTU2WhcNMTIwODE5 MTIxOTU2WjCBhTELMAkGA1UEBhMCVVMxETAPBgNVBAgTCFZpcmdpbmlhMRgwFgYD VQQHEw9DaGFybG90dGVzdmlsbGUxFTATBgNVBAoTDGFyZ29uLm9yZyBDQTEVMBMG A1UEAxMMYXJnb24ub3JnIENBMRswGQYJKoZIhvcNAQkBFgxjYUBhcmdvbi5vcmcw gZ8wDQYJKoZIhvcNAQEBBQADgY0AMIGJAoGBAKoFvPineq/cfSBMLXV8dSpkrH68 f8RS03eoq8MTDEQNz0pUN22GedhCiBpjSppDMgmP0+34VTfZa8vMpGnZfloSqop5 bqFFEIZ56LpZ9Yq9LGtrDB6wGz/WkHC1tFMlU8VuohJxbNXczw2VM+6QWLTgUSux fTewO7OYcCLC4iPbAgMBAAGjgeUwgeIwHQYDVR0OBBYEFHlSI640KKY736fvpzPN 3HAu0F16MIGyBgNVHSMEgaowgaeAFHlSI640KKY736fvpzPN3HAu0F16oYGLpIGI MIGFMQswCQYDVQQGEwJVUzERMA8GA1UECBMIVmlyZ2luaWExGDAWBgNVBAcTD0No YXJsb3R0ZXN2aWxsZTEVMBMGA1UEChMMYXJnb24ub3JnIENBMRUwEwYDVQQDEwxh cmdvbi5vcmcgQ0ExGzAZBgkqhkiG9w0BCQEWDGNhQGFyZ29uLm9yZ4IBADAMBgNV HRMEBTADAQH/MA0GCSqGSIb3DQEBBAUAA4GBAHgnFGcAJ6W07tZEVnZkWjdTHZyx mF76fHGBSIxdC2gSrjUaFp/hADNacoabQf2E29+cxukK41f+vCHA1RpS4tGJJiQI JGPi/WZ3+oT7XrAhqfgGNf3TUkKuiI0q76CNBa2+dduP8xxLC4Ojs36bgKjsYXz8 Ts8GogKJ+BsYuYIE -----END CERTIFICATE----- -----BEGIN X509 CRL----- MIIFEDCCBHkwDQYJKoZIhvcNAQEFBQAwgYUxCzAJBgNVBAYTAlVTMREwDwYDVQQI EwhWaXJnaW5pYTEYMBYGA1UEBxMPQ2hhcmxvdHRlc3ZpbGxlMRUwEwYDVQQKEwxh cmdvbi5vcmcgQ0ExFTATBgNVBAMTDGFyZ29uLm9yZyBDQTEbMBkGCSqGSIb3DQEJ ARYMY2FAYXJnb24ub3JnFw0xMDAxMDcxNDMzMTRaFw0xMDA1MTExNDMzMTRaMIID wDASAgECFw0wMzA4MjgxNDE5MzVaMBICAQMXDTAyMTAxMjIxMjkwOVowEgIBBBcN MDIxMDEyMjEyOTE0WjASAgEFFw0wMjEwMTIyMjIwMTNaMBICAQoXDTAzMDExNzE0 MjYyMFowEgIBDRcNMDYwMjAxMTg1MzUzWjASAgEOFw0wNTEwMTAxNTI0MTVaMBIC AQ8XDTAzMTAxNTAwNTIyN1owEgIBEBcNMDMxMDE1MDA1MjM5WjASAgERFw0wMzEw MTUwMDUyNDJaMBICARQXDTA1MTAwMjIwNTIxOVowEgIBFhcNMDQwNzA3MTU1MDIw WjASAgEXFw0wNDA3MDcxNTUwMjdaMBICARoXDTA0MDcwOTEyNTMyNVowEgIBHBcN MDQwNzIyMTczMzAzWjASAgEdFw0wNDA3MjIxNzMzMDdaMBICAR4XDTA0MDcyMjE3 MzMwOVowEgIBHxcNMDQwNzIyMTczMzA4WjASAgEgFw0wNTAyMTUxODM4NDVaMBIC AScXDTA3MDIwNTE2MDEyMFowEgIBLhcNMDUwMzIyMjAzMTMyWjASAgEvFw0wOTEw MjkxMzQzMDRaMBICATAXDTA1MDMyNDE0MjEyN1owEgIBMhcNMDcwMjA1MTU1OTMx WjASAgE3Fw0wNzAxMjQyMjE4MzNaMBICAT8XDTA3MDIwNTE1NTkxOFowEgIBRRcN MDYwMjIyMTU1MzMxWjASAgFHFw0wODA1MjIxNTE1MDNaMBICAUgXDTA4MDUyMjE1 MTUwOVowEgIBSRcNMDgwNTIyMTUxNTEwWjASAgFKFw0wODA1MjIxNTE1MTFaMBIC AUsXDTA3MTIwMzIwNDYyOFowEgIBTBcNMDgwNTIyMTUxNTEzWjASAgFNFw0wODA1 MjIxNTE1MTRaMBICAU4XDTA4MDUyMjE1MTUxOFowEgIBTxcNMDgwNTIyMTUxNTE5 WjASAgFQFw0wODA1MjIxNTE1MTlaMBICAVEXDTA4MDUyMjE1MTUyMFowEgIBUhcN MDgwNTIyMTUxNTIxWjASAgFTFw0wODA1MjIxNTE1MjJaMBICAVQXDTA4MDUyMjE1 MTUyMlowEgIBWhcNMDgwNTIyMTUzOTIzWjASAgFfFw0wODA1MjMxNzA5NTZaMBIC AWUXDTA4MTAxNjE0MDE1NVowEgIBbBcNMDkxMTE4MTkzMDA0WjASAgFuFw0wOTEx MDMxODM2NDhaMBICAW8XDTA5MTEwMzE4NTgyNlowEgIBcRcNMDkxMTAzMTg1ODMx WjANBgkqhkiG9w0BAQUFAAOBgQBW41pEb+jUAxuJk457WG8gvHAesc9rvNbkmn/9 gxUDfJItHU5IDi6DImACaS5Db/0gyIHgdV5Rs0QJ4YtWKkX6FWQ2/6eLKWAhwuaa oecafRZjIWHqkHslGYjV/qK+JoDoW7YMmJYM2BsD74idFX2VCAAcUsSQWSQeBmqc YBfK0g== -----END X509 CRL-----