Still exit code 100 on restore from encrypted Storage

Support
#1

I read this post: Can't restore, sequence truncated Exit code: 100 about the -traditional needed to get a decent header in the private key. As my openssl also generated the ‘wrong’ header I used the -traditional flag and indeed got a proper header. However, when I want to restore I still get ‘sequence truncated Exit code: 100’.

I am running on MacOS 15.5, openssl 3.1.3 19 Sep 2023, Duplicacy Web edition 1.8.3 which comes with CLI 3.2.3,

This is how my private key starts:

-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-256-CBC,E4850C87BAFC5E809D98D8F07B9EB8C7

7VfofLzDoMR8Cz9S1uxVg+zIJKMVI/Q15t3TkTUl9dwPe84ibOCWZsUCkFfDG07B

This is what I get back (in the GUI) when I attempt a restore:

2025-07-22 21:07:29.114 INFO REPOSITORY_SET Repository set to /Users/tommy/Desktop
2025-07-22 21:07:29.114 INFO STORAGE_SET Storage set to /Volumes/SSD4SubEncrypted
2025-07-22 21:07:29.114 INFO SNAPSHOT_FILTER Loaded 1 include/exclude pattern(s)
2025-07-22 21:07:29.151 ERROR RSA_PRIVATE Failed to parse the private key in /Users/tommy/duplicacy/private.pem: asn1: syntax error: sequence truncated

Any idea how to tackle this?

Thanks,
Tom

#2

Strange. Can openssl itself decrypt the key?

openssl rsa -in /Users/tommy/duplicacy/private.pem -out /Users/tommy/duplicacy/private_decrypted.pem

If so, are you passing the correct password? Does your password contain weird characters that duplicacy’s web UI may mangle? Can you try with duplicacy in the CLI?

#3

Yeah, that works. I get something like this back:

cat private_decrypted.pem 
-----BEGIN PRIVATE KEY-----
MIIEvQIBADANBgkqhkiG9w0BAQEFAASCBKcwggSjAgEAAoIBAQCo07Ntwzja8GzK

I made my password memorable, so a couple of random words, separated by hyphens.

I will dig in to how to restore with the CLI, not really comfortable with that yet.