Module: Sekrets::Blowfish

Extended by:
Blowfish
Included in:
Sekrets, Blowfish
Defined in:
lib/sekrets.rb

Instance Method Summary collapse

Instance Method Details

#cipher(mode, key, data) ⇒ Object 



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# File 'lib/sekrets.rb', line 317

def cipher(mode, key, data)
  cipher = OpenSSL::Cipher.new('bf-cbc').send(mode)
  cipher.key = Digest::SHA256.digest(key.to_s).slice(0,16)
  cipher.update(data) << cipher.final
end

#cycle(key, data) ⇒ Object 



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# File 'lib/sekrets.rb', line 331

def cycle(key, data)
  decrypt(key, encrypt(key, data))
end

#decrypt(key, text) ⇒ Object 



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# File 'lib/sekrets.rb', line 327

def decrypt(key, text)
  cipher(:decrypt, key, text)
end

#encrypt(key, data) ⇒ Object 



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# File 'lib/sekrets.rb', line 323

def encrypt(key, data)
  cipher(:encrypt, key, data)
end

#recrypt(old_key, new_key, data) ⇒ Object 



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# File 'lib/sekrets.rb', line 335

def recrypt(old_key, new_key, data)
  encrypt(new_key, decrypt(old_key, data))
end