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Contents
module Saml
module Kit
module Crypto
class SimpleCipher
ALGORITHMS = {
'http://www.w3.org/2001/04/xmlenc#tripledes-cbc' => 'DES-EDE3-CBC',
'http://www.w3.org/2001/04/xmlenc#aes128-cbc' => 'AES-128-CBC',
'http://www.w3.org/2001/04/xmlenc#aes192-cbc' => 'AES-192-CBC',
'http://www.w3.org/2001/04/xmlenc#aes256-cbc' => 'AES-256-CBC',
}
def initialize(algorithm, private_key)
@algorithm = algorithm
@private_key = private_key
end
def self.matches?(algorithm)
ALGORITHMS[algorithm]
end
def decrypt(cipher_text)
cipher = OpenSSL::Cipher.new(ALGORITHMS[@algorithm])
cipher.decrypt
iv = cipher_text[0..cipher.iv_len-1]
data = cipher_text[cipher.iv_len..-1]
#cipher.padding = 0
cipher.key = @private_key
cipher.iv = iv
Saml::Kit.logger.debug ['-key', @private_key].inspect
Saml::Kit.logger.debug ['-iv', iv].inspect
cipher.update(data) + cipher.final
end
end
end
end
end
Version data entries
20 entries across 20 versions & 1 rubygems