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Add pepper to password hashing

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Signed-off-by: Kent Shikama <kent@kentshikama.com>
This commit is contained in:
Kent Shikama 2016-07-05 02:13:52 +09:00
parent 3de8168343
commit 8bdaf5f7af
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GPG key ID: D275958A0FA61427
2 changed files with 8 additions and 3 deletions
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6
synapse/config/password.py
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@ -23,10 +23,14 @@ class PasswordConfig(Config):
def read_config(self, config):
password_config = config.get("password_config", {})
self.password_enabled = password_config.get("enabled", True)
self.pepper = password_config.get("pepper", "")
def default_config(self, config_dir_path, server_name, **kwargs):
return """
# Enable password for login.
password_config:
enabled: true
"""
# Uncomment for extra security for your passwords.
# DO NOT CHANGE THIS AFTER INITIAL SETUP!
#pepper: "HR32t0xZcQnzn3O0ZkEVuetdFvH1W6TeEPw6JjH0Cl+qflVOseGyFJlJR7ACLnywjN9"
"""

5
synapse/handlers/auth.py
View file

@ -750,7 +750,7 @@ class AuthHandler(BaseHandler):
Returns:
Hashed password (str).
"""
return bcrypt.hashpw(password, bcrypt.gensalt(self.bcrypt_rounds))
return bcrypt.hashpw(password + self.hs.config.password_config.pepper, bcrypt.gensalt(self.bcrypt_rounds))
def validate_hash(self, password, stored_hash):
"""Validates that self.hash(password) == stored_hash.
@ -763,6 +763,7 @@ class AuthHandler(BaseHandler):
Whether self.hash(password) == stored_hash (bool).
"""
if stored_hash:
return bcrypt.hashpw(password, stored_hash.encode('utf-8')) == stored_hash
return bcrypt.hashpw(password + self.hs.config.password_config.pepper,
stored_hash.encode('utf-8')) == stored_hash
else:
return False