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campaignd: Use base64-encoded hashes for add-on passphrases again

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Fixes #2068.

As pointed out in the ticket, commit
98648ddf636bf4725d17334addac57850c478315 changed the implementation of
hex_digest() to use hexadecimal numbers instead of base64, causing new
calculated hashes during [upload] and other authenticated operations to
not match what campaignd already had on record.

This commit fixes that by using utils::md5::base64_digest() as
recommended by celticminstrel (which had already been done for wesnothd
but not campaignd, of course). It also matches the 1.12 version of the
campaignd hashing code this way.

Additionally, new uploads/passphrases since the deployment of that change
will need to be re-set by hand to get their base64 versions into the
server config.
This commit is contained in:
Ignacio R. Morelle 2017-10-08 19:50:06 -03:00
parent 94f3a4c2de
commit 2d836ddcd9
2 changed files with 5 additions and 2 deletions
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3
changelog
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@ -6,6 +6,9 @@ Version 1.13.10:
* A list of illegal filenames is sent to the client if any are found during
the upload validation process. Only clients supporting this new
functionality can display the list.
* Fix an issue where the implementation of the hashing function used for
add-on passphrases was changed since 1.13.8, breaking existing hashes
(bug #2068).
* Language and i18n:
* Updated translations: British English
* Multiplayer:

4
src/campaign_server/campaign_server.cpp
View File

@ -71,7 +71,7 @@ namespace {
/* Secure password storage functions */
bool authenticate(config& campaign, const config::attribute_value& passphrase)
{
return utils::md5(passphrase, campaign["passsalt"]).hex_digest() == campaign["passhash"];
return utils::md5(passphrase, campaign["passsalt"]).base64_digest() == campaign["passhash"];
}
std::string generate_salt(size_t len)
@ -93,7 +93,7 @@ void set_passphrase(config& campaign, std::string passphrase)
{
std::string salt = generate_salt(16);
campaign["passsalt"] = salt;
campaign["passhash"] = utils::md5(passphrase, salt).hex_digest();
campaign["passhash"] = utils::md5(passphrase, salt).base64_digest();
}
} // end anonymous namespace