Avast installer signatures

Hello everyone!
Just reaching out to know where I can find official file signatures (MD5/SHA/CRC/PGP/whatever) to check the integrity of the Avast installer executable (avast_premium_security_setup_online.exe). Actually, I calculated those with the official file I downloaded from My Subscriptions (https://subscriptions.avast.com/)
:

[tr]
[td]Algo.[/td]
[td]Hash[/td]
[/tr]
[tr]
[td]SHA-1[/td]
[td]D6CED1CC866DD5819469CF4D249FD4CEF6C333BF[/td]
[/tr]
[tr]
[td]SHA-256[/td]
[td]D17DB3B354E63D42CD42EF774FA92906E0447DF336C7C767E92FFA905C5C11F6[/td]
[/tr]
[tr]
[td]CRC-32[/td]
[td]512E8C97[/td]
[/tr]
[tr]
[td]CRC-64[/td]
[td]AC86EDD8B9DC297A[/td]
[/tr]
[tr]
[td]MD5[/td]
[td]2DB1352B4A1542A2BC4E86EC7391EF2E[/td]
[/tr]

I’d be grateful if you can let me know where I can find those.
Regards