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IDProjectCategoryView StatusLast Update
0005531SOGoBackend Generalpublic2022-07-05 16:46
Reporteruser1 Assigned Tofrancis  
Status resolvedResolutionfixed 
PlatformLinuxOSDebianOS Version11
Product Version5.0.1 
Fixed in Version5.7.1 
Summary0005531: Add ability to set PasswordScheme

We use SOGo together with OpenLDAP 2.4.57. All passwords are stored with Argon2 password hash in the LDAP database. After we enabled password changes via SOGo we discovered the following situation

  • SOGo saves a password with the prefix "{argon2i}" in the database wich results in a password entry like {argon2i}$argon2i$v=19$m=32768,t=4,p=1$j2XytwLUwynYlO8...
  • OpenLDAP[1] expects the password to be prefixed with "{ARGON2} - wich should result in a entry like this one: {argon2}$argon2i$v=19$m=32768,t=4,p=1$j2XytwLUwynYlO8...

On the other side Dovecot switched some time ago to {ARGON2I} and {ARGON2ID}[2]

Would it be possible to add the ability to set the PasswordScheme as a configuration option within SOGo like Roundcube uses it[3]?

Anyway: Thanks for all your great work an SOGo. We really appreciate it.


Tagsargon2, password




2022-06-08 05:55

reporter   ~0016093

It looks like argon2 is synonymous to argon2i, so adding it is really easy, see attached patch

0001-Support-ARGON2-scheme-being-identical-to-ARGON2I.patch (1,768 bytes)   
From 97624f3888c9a69b9c11a505c19486d1438b112b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicolas=20H=C3=B6ft?= <>
Date: Wed, 8 Jun 2022 07:54:42 +0200
Subject: [PATCH] Support ARGON2 scheme, being identical to ARGON2I

 Documentation/SOGoInstallationGuide.asciidoc | 2 +-
 SoObjects/SOGo/NSData+Crypto.m               | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/Documentation/SOGoInstallationGuide.asciidoc b/Documentation/SOGoInstallationGuide.asciidoc
index f4dabdc94..cd960ae7a 100644
--- a/Documentation/SOGoInstallationGuide.asciidoc
+++ b/Documentation/SOGoInstallationGuide.asciidoc
@@ -1668,7 +1668,7 @@ passwords. Possible values are: `none`, `plain`, `crypt`, `md5`,
 `sha256-crypt`, `sha512`, `sha512-crypt`, its ssha (e.g. `ssha` or
 `ssha256`) variants, `blf-crypt`, `PBKDF2`, and `sym-aes-128-cbc`.
 The `argon2i` and `argon2id` password hashing algorithms are supported
-if SOGo is compiled with `libsodium`.
+if SOGo is compiled with `libsodium`. `argon2` is a synonym for `argon2i`.
 Passwords can have the scheme prepended in the form
diff --git a/SoObjects/SOGo/NSData+Crypto.m b/SoObjects/SOGo/NSData+Crypto.m
index ed7912494..6a2f241d1 100644
--- a/SoObjects/SOGo/NSData+Crypto.m
+++ b/SoObjects/SOGo/NSData+Crypto.m
@@ -272,7 +272,8 @@ static const char salt_chars[] =
       return [self asPBKDF2SHA1UsingSalt: theSalt];
-  else if ([passwordScheme caseInsensitiveCompare: @"argon2i"] == NSOrderedSame)
+  else if ([passwordScheme caseInsensitiveCompare: @"argon2i"] == NSOrderedSame ||
+           [passwordScheme caseInsensitiveCompare: @"argon2"] == NSOrderedSame)
       return [self asArgon2iUsingSalt: theSalt];

Related Changesets

sogo: master 2f9f6102

2022-07-05 16:42


Details Diff
fix(core): handle argon2i password scheme

Fixes 0005531
Affected Issues
mod - Documentation/SOGoInstallationGuide.asciidoc Diff File
mod - SoObjects/SOGo/NSData+Crypto.m Diff File

Issue History

Date Modified Username Field Change
2022-06-07 10:01 user1 New Issue
2022-06-07 10:01 user1 Tag Attached: argon2
2022-06-07 10:01 user1 Tag Attached: password
2022-06-08 05:55 the_nic Note Added: 0016093
2022-06-08 05:55 the_nic File Added: 0001-Support-ARGON2-scheme-being-identical-to-ARGON2I.patch
2022-07-05 16:45 francis Changeset attached => sogo master 2f9f6102
2022-07-05 16:45 francis Assigned To => francis
2022-07-05 16:45 francis Resolution open => fixed
2022-07-05 16:46 francis Status new => resolved
2022-07-05 16:46 francis Fixed in Version => 5.7.1