Class: Ccrypto::Argon2Config

Inherits:
KDFConfig show all
Defined in:
lib/ccrypto/configs/kdf_config.rb

Overview

PBKDF2Config

Instance Attribute Summary collapse

Attributes inherited from KDFConfig

#algo

Class Method Summary collapse

Instance Method Summary collapse

Methods included from AlgoConfig

include

Constructor Details

#initialize ⇒ Argon2Config

Returns a new instance of Argon2Config.



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# File 'lib/ccrypto/configs/kdf_config.rb', line 85

def initialize

  @algo = :argon2

  # "salt" which can be stored non-secure or with the password Hash
  @salt = SecureRandom.random_bytes(16)
  
  # Secret value which has to be stored in a different secure location from the password hashes
  #@secret = SecureRandom.random_bytes(16)

  # The RFC recommends 4 GB for backend authentication and 1 GB for frontend authentication. 
  # Unit is in Kilobytes. Min is 8 kb. Convert internally to kb hence the value is 8192
  # 1024*1024 = 1048576 (1GB)
  #@cost = 1048576
  # 25 Dec 2023 - Change it to 2**@cont value below
  # 1GB = 2**20 hence the @cont value should be 20 if 1GB RAM is required
  @cont = 20

  # Choose the Number of CPU-Threads you can afford each call (2 Cores = 4 Threads)
  @parallel = 1

  # Set the number of Iterations each call -> More Iterations = Better Security + more Hashing Time
  # > 3 Iterations recommended
  @iter = 3

  # Follow BC library
  # Argon2d
  # Argon2i (recommended)
  # Argon2id
  # Argon2_version_10
  # Argon2_version_13
  @variant = :argon2i

end

Instance Attribute Details

#cost ⇒ Object

Returns the value of attribute cost.



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# File 'lib/ccrypto/configs/kdf_config.rb', line 77

def cost
  @cost
end

#iter ⇒ Object

Returns the value of attribute iter.



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# File 'lib/ccrypto/configs/kdf_config.rb', line 77

def iter
  @iter
end

#outBitLength ⇒ Object

Returns the value of attribute outBitLength.



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# File 'lib/ccrypto/configs/kdf_config.rb', line 79

def outBitLength
  @outBitLength
end

#parallel ⇒ Object

Returns the value of attribute parallel.



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# File 'lib/ccrypto/configs/kdf_config.rb', line 77

def parallel
  @parallel
end

#salt ⇒ Object

Returns the value of attribute salt.



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# File 'lib/ccrypto/configs/kdf_config.rb', line 77

def salt
  @salt
end

#secret ⇒ Object

Returns the value of attribute secret.



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# File 'lib/ccrypto/configs/kdf_config.rb', line 77

def secret
  @secret
end

#variant ⇒ Object

Returns the value of attribute variant.



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# File 'lib/ccrypto/configs/kdf_config.rb', line 78

def variant
  @variant
end

Class Method Details

.variants ⇒ Object 



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# File 'lib/ccrypto/configs/kdf_config.rb', line 81

def self.variants
  [:argon2d, :argon2i, :argon2id, :argon2_version_10, :argon2_version_13].freeze
end