Amateur Radio Certificate Authority.

Running the Si570 controlled SoftRock40 SDR receivers (SR) on a Windows-7 64bit system you will need to install the singed USB driver from the open-source project LibUSB-Win32.

The SoftRock firmware can be controlled from the PC to set the requested RX (or TX) frequency (and others). The PC software (Software Defined Radio, SDR) is using the LibUSB-Win32 driver "libusb0.sys" to speak to the firmware.
The libusb0.sys driver is a kernel-mode driver, on a Window-7 64bit system kernel-mode drivers can only be installed if the driver is signed by a certificate from Microsoft (or a derivative certificate). The LibUSB-Win32 open-source group did managed to get the driver signed, the driver can now be used without special tricks.

The SoftRock firmware driver package that is using the libusb0.sys (and libusb0.dll) driver is also signed with a other certificate to make a smooth installation of the package possible. The certificate used for that signing is signed by a ROOT certificate (Amateur Radio Certificate Authority). For smooth installation install first the ROOT certificate and then install the USB device.

Amateur Radio ROOT Certificate.

Installing the ROOT certificate will mean that you trust the software that is signed by that certificate or the derivative certificates. On the moment it is only a small amount of tools (.exe, .dll, .inf) files that are signed with a derivate certificate.

Other Radio Amateurs (with a valid call sign) may request a certificate on there own that is signed with this ROOT certificate, please send a email for that to my call at google.com. The list of signed certificates (call's) will be published on this webpage.

Installing the ROOT certificate will show the MD5 and/or SHA1 fingerprint, check that with the code on this site for security reasons.

	MD5 Fingerprint=EB:2F:2B:69:63:38:E2:41:D3:D8:70:85:F8:79:BF:C9
	SHA1 Fingerprint=47:44:CB:80:EF:A6:F5:7F:7C:D1:6F:58:0C:D6:39:13:3B:9E:28:52
	

Download.

Amateur Radio Certificate Authority Root Certificate.
Certificate Revocation List Information. (most of the time not needed.)

Install Amateur Radio ROOT Certificate.

To install the certificate on your system it must be installed as a Local Machine certificate, otherwise it will not work for installing devices.
Take the next steps to install the certificate as a Trusted Root certificate on Local Machine.

• Start and run MMC.exe.
• Menu "File" / "Add/Remove Snap-in..." and "Add" Certificates.
• Select the "Computer account".
• Select the "Local Computer" and "Finish", then OK.
• Open the "Certificates" and "Trusted Root Certification Authorities" / "Certificates".
• Menu "Action" / "All Tasks" / "Import..." and press "Next >".
• Browse to the saved Amateur Radio Certificate Authority Root Certificate.
• Press "Next >".
• Press "Finish".
• The installed certificate will be seen in the screen.

Local Server time: Sunday, 20-May-2012 03:49:54 CEST File last modified on Monday, 26-Dec-2011 12:58:34 CET