Plugin "mail_crypt" - using folder keys

[Evgeniy Korneechev]

Hi, i have two questions about using "folder keys" for encryption:

1. If i use this method how can i decrypt files manually?

2. If move a letter to another folder (or remove it), it will be unreadable.
Log:
imap(cloud): Error: read() failed: read(/home/cloud/Maildir/.Sent.test/cur/1485528498.M838579P2267....) failed: 
Decryption error: no private key available (uid=5, box=Sent.test, read reason=)
imap(cloud): Info: Internal error occurred. Refer to server log for more information. 

or:
imap(cloud): Error: read() failed: read(/home/cloud/Maildir/.Trash/cur/1485528906.M150750P3081....) failed: Decryption error: no private key available

How fix it?

Thank you in advance.



------------------------------------------------
# 2.2.27 (c0f36b0): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.16 (fed8554)
# OS: Linux 4.4.39-std-def-alt0.M80P.1 x86_64 ALT 8.1 Server 
.....
mail_attribute_dict = file:%h/Maildir/dovecot-attributes

mail_plugins = $mail_plugins mail_crypt

plugin {
    mail_crypt_curve = secp521r1
    mail_crypt_save_version = 2
}
.....

-- 
WBR, 
BaseALT/ALTLinux Team