Class: Puppet::Util::MongodbScram

Inherits:
Object
  • Object
show all
Defined in:
lib/puppet/util/mongodb_scram.rb

Constant Summary collapse

CLIENT_KEY = 
'Client Key'
SERVER_KEY = 
'Server Key'

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(password_hash, salt, iterations) ⇒ MongodbScram

Returns a new instance of MongodbScram.



14
15
16
17
18
 
# File 'lib/puppet/util/mongodb_scram.rb', line 14

def initialize(password_hash, salt, iterations)
  @password_hash = password_hash
  @salt = salt
  @iterations = iterations
end

Instance Attribute Details

#iterations ⇒ Object (readonly)

Returns the value of attribute iterations.



12
13
14
 
# File 'lib/puppet/util/mongodb_scram.rb', line 12

def iterations
  @iterations
end

#password_hash ⇒ Object (readonly)

Returns the value of attribute password_hash.



12
13
14
 
# File 'lib/puppet/util/mongodb_scram.rb', line 12

def password_hash
  @password_hash
end

#salt ⇒ Object (readonly)

Returns the value of attribute salt.



12
13
14
 
# File 'lib/puppet/util/mongodb_scram.rb', line 12

def salt
  @salt
end

Instance Method Details

#client_key ⇒ Object 



41
42
43
 
# File 'lib/puppet/util/mongodb_scram.rb', line 41

def client_key
  hmac(salted_password, CLIENT_KEY)
end

#digest ⇒ Object 



20
21
22
 
# File 'lib/puppet/util/mongodb_scram.rb', line 20

def digest
  @digest ||= OpenSSL::Digest.new('SHA1').freeze
end

#hash(string) ⇒ Object 



24
25
26
 
# File 'lib/puppet/util/mongodb_scram.rb', line 24

def hash(string)
  digest.digest(string)
end

#hmac(data, key) ⇒ Object 



28
29
30
 
# File 'lib/puppet/util/mongodb_scram.rb', line 28

def hmac(data, key)
  OpenSSL::HMAC.digest(digest, data, key)
end

#salted_password ⇒ Object 



32
33
34
35
36
37
38
39
 
# File 'lib/puppet/util/mongodb_scram.rb', line 32

def salted_password
  OpenSSL::PKCS5.pbkdf2_hmac_sha1(
    @password_hash,
    Base64.strict_decode64(@salt),
    @iterations,
    digest.size
  )
end

#server_key ⇒ Object 



49
50
51
 
# File 'lib/puppet/util/mongodb_scram.rb', line 49

def server_key
  Base64.strict_encode64(hmac(salted_password, SERVER_KEY))
end

#stored_key ⇒ Object 



45
46
47
 
# File 'lib/puppet/util/mongodb_scram.rb', line 45

def stored_key
  Base64.strict_encode64(hash(client_key))
end