Kleopatra compatibility issue

[seisvelas]

I've updated my private key to have a longer expiration date, but I cannot use it for encryption. I've used Kleopatra for updating the key. Can you pls help?

The key from Kleopatra gives this error on FlowCrypt: Key update: This looks like a valid key but it cannot be used for encryption.
Inbox

Ref: https://mail.google.com/mail/u/human@flowcrypt.com/#inbox/FMfcgxwJXxvNgMSFNvzzZGptQsVccTDx

[tomholub]

Could they run the key through the compatibility test, and share what it prints out?

[banescusebi]

When I compose a new email I first get the following pop-up:

Then I updated the key in Kleopatra such that it is valid. Then when clicking on update private key:

@tomholub The output from the compatibility test says that the subkey is expired, but that's my old key (before the update), which is of course expired:

(1) Primary keys found: 1  
(2) ----- Testing key 0 -----  
(3) PK 0 > Key type: [-] openpgp  
(4) PK 0 > Is Private?: [-] true  
(5) PK 0 > User id 0: [-] Sebastian Banescu <removed>  
(6) PK 0 > Primary User: [-] Sebastian Banescu <removed>  
(7) PK 0 > Fingerprint: [-] 762C 407E 54BA FAA9 24A4 3846 EA5F AA94 575B D347  
(8) PK 0 > Subkeys: [-] 1  
(9) PK 0 > Primary key algo: [-] rsa_encrypt_sign  
(10) PK 0 > key decrypt: [-] true  
(11) PK 0 > isFullyDecrypted: [-] false  
(12) PK 0 > isFullyEncrypted: [-] true  
(13) PK 0 > Primary key verify: [-] valid  
(14) PK 0 > Primary key creation?: [-] 1521787273 or 2018-03-23T06:41:13.000Z  
(15) PK 0 > Primary key expiration?: [-] -  
(16) PK 0 > Encrypt/Decrypt test: Got error performing encryption/decryption test: Error: Error encrypting message: Could not find valid encryption key packet in key ea5faa94575bd347: Subkey is expired:   
(17) PK 0 > Sign/Verify test: [-] skiped, not fully decrypted  
(18) PK 0 > SK 0 > LongId: [-] 9B6B9BC16CF73078  
(19) PK 0 > SK 0 > Created: [-] 1521787273 or 2018-03-23T06:41:13.000Z  
(20) PK 0 > SK 0 > Algo: [-] rsa_encrypt_sign  
(21) PK 0 > SK 0 > Verify: [Error: Subkey is expired]  
(22) PK 0 > SK 0 > Subkey tag: [-] 7  
(23) PK 0 > SK 0 > Subkey getBitSize: [-] 2048  
(24) PK 0 > SK 0 > Subkey decrypted: [-] false  
(25) PK 0 > SK 0 > Binding signature length: [-] 1  
(26) PK 0 > SK 0 > SIG 0 > Key flags: [-] 12  
(27) PK 0 > SK 0 > SIG 0 > Tag: [-] 2  
(28) PK 0 > SK 0 > SIG 0 > Version: [-] 4  
(29) PK 0 > SK 0 > SIG 0 > Public key algorithm: [-] 1  
(30) PK 0 > SK 0 > SIG 0 > Sig creation time: [-] 1521787273 or 2018-03-23T06:41:13.000Z  
(31) PK 0 > SK 0 > SIG 0 > Sig expiration time: [-] 1521787273 + 63173927 seconds, which is: 1584961200 or 2020-03-23T11:00:00.000Z  
(32) PK 0 > SK 0 > SIG 0 > Verified: [-] true  
(33) PK 0 > expiration: [-] 1584961200000  
(34) PK 0 > internal dateBeforeExpiration: [-] Mon Mar 23 2020 11:59:59 GMT+0100 (Central European Standard Time)  
(35) PK 0 > internal usableButExpired: [-] false  

Should the verification fail if the subkey is expired?

[tomholub]

Sorry for the slow response. Do you also have your newer openpgp public key available that you could run through the test?