Synergy-core: TLS certificate is not created on Windows

[Jnewbon]

Operating Systems

Windows

Synergy Version

1.11.0

Steps to Reproduce

1. Delete the TLS certificate from the user home
2. Run synergy and connect with TLS enabled
3. See error that cert doesn't exsist

Logs

ERROR: secure socket error: tls certificate doesn't exist

Extra Info

It appears that one of the ported commits changed the openSSL binary location to the synergy base dir but didn't change the location of the openSSL binaries. (See https://github.com/symless/synergy-core/commit/1bc2cf57d90533bc3a4f4a029f4bab74caa12275) This commit shouldn't have been ported and needs to be reverted

[ryan-brazeal-ufl]

The issue appears to be with lines 37 and 38 in src/gui/src/SslCertificate.cpp for commit b2173ef ?

As a temporary work around, I copied the files _openssl.exe_ and _synergy.conf_ from C:/Program Files/Synergy/OpenSSL back one directory (i.e., the parent directory) to C:/Program Files/Synergy/ and restarted the server with TLS enabled. The SSL Fingerprint now appeared and the C:/Users/$USER/AppData/Local/Synergy/SSL/Synergy.pem file was created.

[m-p-3]

Confirmed on my end, had to generate a key on my Ubuntu server

openssl req -nodes -new -x509 -keyout synergy.key -out synergy.cert -days 3650 -sha256 -subj "//CN=computername"
then
cat synergy.key synergy.cert > synergy.pem
and copy synergy.pem to my %LocalAppData%\Synergy\SSL directory.

[Jnewbon]

We have a test build that has a fix for this issue in it. Please try it out.

Synergy v1.11.1-snapshot

[octogonz]

I encountered this issue also, and the test build fixed it. Thanks!

[adfaklsdjf]

I just installed synergy on a fresh Windows 10 system and encountered this. The work-around posted above fixed it.....

(wondering out loud: should we assume every user who uses Synergy is technical enough to google the error, find this issue ticket, and implement the work around...?)

[free-style]

(wondering out loud: should we assume every user who uses Synergy is technical enough to google the error, find this issue ticket, and implement the work around...?)

Definitely not. I'm surprised I found it.

[ttimasdf]

After moved OpenSSL binary from server, I got the following exception on macOS client.

2020-02-17 14:20:06.844 synergyc[31846:843080] unable to obtain configuration from file:///Library/Preferences/com.apple.ViewBridge.plist due to Error Domain=NSCocoaErrorDomain Code=260 "The file “com.apple.ViewBridge.plist” couldn’t be opened because there is no such file." UserInfo={NSFilePath=/Library/Preferences/com.apple.ViewBridge.plist, NSUnderlyingError=0x7fd505c40710 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}

I deleted ~/Library/Synergy/SSL/Fingerprints/TrustedServers.txt from client side and it works. Just in case someone may need this.

[tohn]

I just had this problem as well:

ERROR: secure socket error: tls certificate doesn't exist: C:\Users\xyz\AppData\Local\Synergy/SSL/Synergy.pem

I solved it via https://github.com/symless/synergy-core/issues/6608#issuecomment-574350347, thanks! 👍