Bug 4102

Summary: Show SHA-256 fingerprint in certificate verification popup
Product: Claws Mail (GTK 2) Reporter: Traumschule Riebau <tsr>
Component: UIAssignee: users
Status: RESOLVED FIXED    
Severity: normal    
Priority: P3    
Version: 3.17.1   
Hardware: PC   
OS: Windows 7   

Description Traumschule Riebau 2018-10-15 22:45:48 UTC 
My mail server just changed the certificate and published a signed statement[1] with sha256 fingerprint but the popup only shows md5 and sha1. Please show the SHA-256 fingerprint as well / instead.

$ openssl s_client --connect mail.riseup.net:443 < /dev/null 2>/dev/null | openssl x509 -fingerprint -sha256 -noout -in -|cut -f2 -d'='
38:14:E3:EA:F9:1E:30:45:17:90:69:7A:98:B1:B5:59:4C:DB:DF:EF:4A:73:EF:5A:47:ED:33:C5:56:81:66:45

Which is the correct one listed in the signed statement:
3814e3eaf91e30451790697a98b1b5594cdbdfef4a73ef5a47ed33c556816645

[1] https://github.com/riseupnet/riseup_help/pull/552/files