Highly efficient method of data protection based on multilayer hybrid encryption
O. M. Lyashuk · RADAP (Igor Sikorsky Kyiv Polytechnic Institute) · 2014
Introduction. The paper deals with modern encryption algorithms and problems associated with their use. Hybrid encryption method was developed for secure communication over the Internet. Principal part. Symmetric algorithms, which used in method, are AES, Serpent and Twofish, asymmetric algorithm is RSA. For each layer new secure random key is generated and encrypted by RSA. This key is aligned and written in the beginning of the encrypted data. On decryption key is read from the beginning of encrypted data and decrypted by RSA secret key. Then symmetric key is used to decrypt data layer by layer. Conclusions. Use of multilayer hybrid encryption allows to transmit both keys and data by unsecure channel and ensure that data will be protected and at least one symmectric algorithm is not compromised.