Psiphon for Windows is never distributed as an installable package. Each Psiphon for Windows client is a single executable file (".exe") that is digitally signed by Psiphon Inc. Windows automatically checks this signature when you run the client. You can also manually inspect the signature before running the client by invoking the Properties dialog for the file and inspecting the Digital Signatures tab. The SHA1 thumbprint for the Psiphon Inc. certificate public key is displayed in the Certificate dialog Details tab. TrK免费翻墙网
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For the certificate valid for the period 2014-05-08 to 2017-09-06 the SHA1 thumbprint is: TrK免费翻墙网
9b a0 bd 1c e4 ca f6 20 41 0d 46 47 ae 40 b0 7c 83 c7 31 99 TrK免费翻墙网
For the certificate valid for the period 2012-05-21 to 2014-07-30 the SHA1 thumbprint is: TrK免费翻墙网
84 c5 13 5b 13 d1 53 96 7e 88 c9 13 86 0e 83 ee ef 48 8e 91 TrK免费翻墙网
For the certificate valid for the period 2011-06-16 to 2012-06-21 the SHA1 thumbprint is: TrK免费翻墙网
8f b7 ef bd 20 a9 20 3a 38 37 08 a2 1e 0a 1d 2e ad 7b ee 6d TrK免费翻墙网
赛风windows版本能够自动更新，这一更新过程会自动验证每个更新是可信的。 TrK免费翻墙网
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