This article contains details on validating the origin and integrity of the latest version of Transmit 5

Transmit 5.10.9 Checksum

The SHA256 checksum of the Transmit 5.10.9.zip archive, available at https://download.panic.com/transmit/Transmit 5.10.9.zip is:

3986ff26c049950550b5caf034d920cd201d7e4943ea6ff07c4f6c88485e96f8

Validating the Checksum

1. Download Transmit 5.10.9.zip
2. Run the following command in Terminal to compute the checksum of your copy:

$ shasum -a 256 ~/Downloads/Transmit\ 5.10.9.zip

If the hash portion of the command output matches the checksum above:

3986ff26c049950550b5caf034d920cd201d7e4943ea6ff07c4f6c88485e96f8  /Users/panic/Downloads/Transmit 5.10.9.zip

you can be sure that your copy of the download is identical to the version on our website.

Unfortunately, validating the checksum alone does not guarantee that the contents of Transmit 5.10.9.zip haven’t changed since we posted it*. However, with one extra step you can also determine with certainty that the checksum above, and therefore the contents of the ZIP, originated from Panic.

*Why not? In the very unlikely circumstance that a malicious actor replaced the ZIP archive on our website and modified the contents of this article using a new SHA256 hash, the checksum could still validate.

Transmit 5.10.9 Checksum Signature

Using our public key, we have PGP-signed the SHA256 checksum from above:

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512

3986ff26c049950550b5caf034d920cd201d7e4943ea6ff07c4f6c88485e96f8
-----BEGIN PGP SIGNATURE-----

iQEzBAEBCgAdFiEE6i1R0iW3pPNCW77Iq26O7ibMLj0FAmguOKcACgkQq26O7ibM
Lj15Cwf/eS9x0uG0nZxdhJLJEbHvmrfDmsm8LpwnVUHjQHlyukTd9aCgIWc+8cXh
cNDL96hEDZES4ep9bt9BWGjkmZL9PABBGDBspAsPdLk/lZfLwo3A830xlBdyJMXR
DKu4QcOrjy7rXjijr2NOjTHV81OE649kur+AY2bKw93UcyQI/qPMh3hIj1XbhCqY
99kPwQfLVokELeVaHPeDr/RIB1RZuAniYPRw7N3ZgJz/ZiaCRLCE+XJWVyjfM0MG
tp2dMTcOl8uN7sjf6sGH9nt5qIR4Jy1cOKicueIWo6RJhrkzvq2fHcAA3We89hiF
dKDjLVEvB2SrD8+LS0a7kb8D0uV26Q==
=OJub
-----END PGP SIGNATURE-----

Validating the Signature

1. Follow these instructions to install GnuPG
2. Open your terminal
3. Copy the entire PGP message above, including -----BEGIN PGP MESSAGE----- and -----END PGP MESSAGE-----
4. Use the echo "<message" | gpg --verify - command to verify the PGP message copied above

Most importantly, GnuPG should indicate that the message was signed by Panic:

Additionally, the resulting Signed Text should match our original checksum:

3986ff26c049950550b5caf034d920cd201d7e4943ea6ff07c4f6c88485e96f8

If both items match, you can be sure that the checksum in this article originated from Panic.

Putting it all together

By using two factors of validation:

• A checksum which ensures that your copy of Transmit 5.10.9.zip is identical to the copy on our website
• A PGP signature which ensures that the checksum originated from Panic

you can be sure that you are installing the release that we originally posted.

Support

We are more than happy to answer questions or help provide any guidance you might need to validate the checksum and signature for this release. Please email us, transmit@panic.com.