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Merge pull request #907 from KentShikama/pepper

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Add pepper to password hashing
This commit is contained in:
Erik Johnston 2016-07-05 11:26:22 +01:00 committed by GitHub
commit e34cb5e7dc
2 changed files with 8 additions and 2 deletions
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4
synapse/config/password.py
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@ -23,10 +23,14 @@ class PasswordConfig(Config):
def read_config(self, config): def read_config(self, config):
password_config = config.get("password_config", {}) password_config = config.get("password_config", {})
self.password_enabled = password_config.get("enabled", True) self.password_enabled = password_config.get("enabled", True)
self.password_pepper = password_config.get("pepper", "")
def default_config(self, config_dir_path, server_name, **kwargs): def default_config(self, config_dir_path, server_name, **kwargs):
return """ return """
# Enable password for login. # Enable password for login.
password_config: password_config:
enabled: true enabled: true
# Change to a secret random string.
# DO NOT CHANGE THIS AFTER INITIAL SETUP!
#pepper: ""
""" """

6
synapse/handlers/auth.py
View file

@ -750,7 +750,8 @@ class AuthHandler(BaseHandler):
Returns: Returns:
Hashed password (str). Hashed password (str).
""" """
return bcrypt.hashpw(password, bcrypt.gensalt(self.bcrypt_rounds)) return bcrypt.hashpw(password + self.hs.config.password_pepper,
bcrypt.gensalt(self.bcrypt_rounds))
def validate_hash(self, password, stored_hash): def validate_hash(self, password, stored_hash):
"""Validates that self.hash(password) == stored_hash. """Validates that self.hash(password) == stored_hash.
@ -763,6 +764,7 @@ class AuthHandler(BaseHandler):
Whether self.hash(password) == stored_hash (bool). Whether self.hash(password) == stored_hash (bool).
""" """
if stored_hash: if stored_hash:
return bcrypt.hashpw(password, stored_hash.encode('utf-8')) == stored_hash return bcrypt.hashpw(password + self.hs.config.password_pepper,
stored_hash.encode('utf-8')) == stored_hash
else: else:
return False return False