S / mime timestamp support

Question

Now I have a timestamp from a TS provider.

How should I put it in a mime message to meet the standards? As far as I know, no email program supports timestamping, and this will not be a problem, because I myself will process the mime message.

However, I want to do it in a standard way ... any examples?

Thanks.

Answer 1

I believe this is a suitable format:

MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/timestamp-reply"; micalg="sha256"; boundary="{79EAC9E2-BAF9-11CE-8C82-00AA004BA90B}" --{79EAC9E2-BAF9-11CE-8C82-00AA004BA90B} MIME-Version: 1.0 Content-Type: text/plain Hello --{79EAC9E2-BAF9-11CE-8C82-00AA004BA90B} Content-Type: application/timestamp-reply; name="smime.tsr" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.tsr" MIIIUgYJKoZIhvcNAQcCoIIIQzCCCD8CAQMxDzANBglghkgBZQMEAgEFADCCAQ4G CyqGSIb3DQEJEAEEoIH+BIH7MIH4AgEBBgorBgEEAbIxAgEBMDEwDQYJYIZIAWUD BAIBBQAEIO30d6Q/ui8NHZWLU42JHpvHqwcukBtDCZiWtieBErjfAhQJsQprheA+ j/8hfRdCJYqNwURr+BgPMjAxNjA3MjgxMTM4NDdaoIGMpIGJMIGGMQswCQYDVQQG EwJHQjEbMBkGA1UECBMSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYDVQQHEwdTYWxm b3JkMRowGAYDVQQKExFDT01PRE8gQ0EgTGltaXRlZDEsMCoGA1UEAxMjQ09NT0RP IFNIQS0yNTYgVGltZSBTdGFtcGluZyBTaWduZXKgggSgMIIEnDCCA4SgAwIBAgIQ TrCHj8wkNTay2Mn3vzlVdzANBgkqhkiG9w0BAQsFADCBlTELMAkGA1UEBhMCVVMx CzAJBgNVBAgTAlVUMRcwFQYDVQQHEw5TYWx0IExha2UgQ2l0eTEeMBwGA1UEChMV VGhlIFVTRVJUUlVTVCBOZXR3b3JrMSEwHwYDVQQLExhodHRwOi8vd3d3LnVzZXJ0 cnVzdC5jb20xHTAbBgNVBAMTFFVUTi1VU0VSRmlyc3QtT2JqZWN0MB4XDTE1MTIz MTAwMDAwMFoXDTE5MDcwOTE4NDAzNlowgYYxCzAJBgNVBAYTAkdCMRswGQYDVQQI ExJHcmVhdGVyIE1hbmNoZXN0ZXIxEDAOBgNVBAcTB1NhbGZvcmQxGjAYBgNVBAoT EUNPTU9ETyBDQSBMaW1pdGVkMSwwKgYDVQQDEyNDT01PRE8gU0hBLTI1NiBUaW1l IFN0YW1waW5nIFNpZ25lcjCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB AM68dLdwgE9e8z+Yqi7L1BIBIzVpCyK85v0JbCjkExKsu7ot5dXdIu5ztiz40qRx 50kleKslt5AQoJuLdybdQOpBo/2IzXKmiTtQVxx6JSQiAlFANWeKMWkN5TlzSTmb lQGFUvIrFImaTgSkvECuOabdQALgOnX+PX1VlFvxTiR8yLhYGcrA2r5YE5rmHOfR wTvwXY9JCCGe0PO+1tRmT1xyNnvDgtOYCJSvq0RPGMcU2haxHjIOEjjAtTx27HVQ ACAEERntxv/fTv4IgScxT3F0bgMMcCeBVWqaQ5Kkf9v9P8UXHkG7zuinf4yV+f1/ +GGIiQA+/wsB2/3VtaTkkRECAwEAAaOB9DCB8TAfBgNVHSMEGDAWgBTa7WR0FJwU PKvdmam9WyhNizzJ2DAdBgNVHQ4EFgQUfb+R16dsWkdmRHuQ1I6QckGPF8IwDgYD VR0PAQH/BAQDAgbAMAwGA1UdEwEB/wQCMAAwFgYDVR0lAQH/BAwwCgYIKwYBBQUH AwgwQgYDVR0fBDswOTA3oDWgM4YxaHR0cDovL2NybC51c2VydHJ1c3QuY29tL1VU Ti1VU0VSRmlyc3QtT2JqZWN0LmNybDA1BggrBgEFBQcBAQQpMCcwJQYIKwYBBQUH MAGGGWh0dHA6Ly9vY3NwLnVzZXJ0cnVzdC5jb20wDQYJKoZIhvcNAQELBQADggEB AFCw9d9frTPcw1NYWLzCE3V7IB1Uyro/UD+6ivRrCWPAW12L1nUac72L/0fxFdxR FiMZMuZukk3Rxi5aHohCFMly5dcIUIpq9WRAVq4k42GXFULwLEiug+Y1PItbwo+u jsw0UjTg+/7K/bEkaNGkESMQBv2ywiQnx9fpShyPPz7P7et1eWyOX/chtlDmJaHN ZpQSbL/bs66H2GgDciACwn7alPNyBzxX6FUk5wWgHcSBAYJLHz8PnTOb8E/MndaF gc/L5/1K6ZK49w1ycy3pd/lvjyh6Ph69CIbcjR4RX/dbu4d2xp5MVGHQZ9uThNox hwOS55/j6c9aVsho4FJJlFwxggJxMIICbQIBATCBqjCBlTELMAkGA1UEBhMCVVMx CzAJBgNVBAgTAlVUMRcwFQYDVQQHEw5TYWx0IExha2UgQ2l0eTEeMBwGA1UEChMV VGhlIFVTRVJUUlVTVCBOZXR3b3JrMSEwHwYDVQQLExhodHRwOi8vd3d3LnVzZXJ0 cnVzdC5jb20xHTAbBgNVBAMTFFVUTi1VU0VSRmlyc3QtT2JqZWN0AhBOsIePzCQ1 NrLYyfe/OVV3MA0GCWCGSAFlAwQCAQUAoIGYMBoGCSqGSIb3DQEJAzENBgsqhkiG 9w0BCRABBDAcBgkqhkiG9w0BCQUxDxcNMTYwNzI4MTEzODQ3WjArBgsqhkiG9w0B CRACDDEcMBowGDAWBBQ2Un1Pompo+etFlvHZmrssDqdt+jAvBgkqhkiG9w0BCQQx IgQgXBnEfFijVzb4h7n7wGBdvQhBEzRn87M67RIUdRNe6dwwDQYJKoZIhvcNAQEB BQAEggEACcjtqph0BQ20lchE0HZYg/4oL8KuPh1Vx5LL2cVaPcj2fruoXH58577E XFQxhZ08HsjZtYdhVokRs2vbjM/i23HVDX+IkwGuESloFXhtoAt9hKNkyhXTtWx5 tt7TEJwi+o8/SU9bFnDqPMVn5Bg+QNnnegiCJzQ4lZnmTW2JiEmL3u7XzZ21FLZ7 KT/JqgOvBY3yvWySODN1yKVdhk5FkVKxBAxBgccPQ6nwmdm0RxqbsLdoSXFuRMi5 7sUgo113xR2VuvdJzl6d4iAYdUvuSRz94xXIQMQ9L307dKZ2yTYUQTy1YcSRxsZb kTmkisjtzbXCyfC+AYB6dnoeBp3euQ== --{79EAC9E2-BAF9-11CE-8C82-00AA004BA90B}-- 

Please edit me if I am wrong. Any email client that supports it to check?