APPARATUS AND METHOD FOR PUBLIC KEY ENCRYPTION

Disclosed are an apparatus and method for public key encryption using a white-box cipher algorithm. An apparatus for public key encryption using a white-box cipher algorithm includes a key table generator configured to generate at least one key table from a cipher key, a hidden-key table generator configured to convert the at least one key table into at least one hidden-key table, and an encryption algorithm generator configured to generate a white-box implemented encryption algorithm by using the at least one hidden-key table and an inverse operation of the conversion and provide the generated encryption algorithm as a public key for encryption. 本发明公开种利用白盒密码算法的用于公钥加密的装置及方法。根据本发明的实施例的利用白盒密码算法的用于公钥加密的装置包括：密钥表生成部，从加密密钥生成至少个密钥表；隐藏密钥表生成部，将所述至少个密钥表变换而生成至少个隐藏密钥表；加密算法生成部，利用所述至少个隐藏密钥表以及针对所述变换的逆运算来生成实现为白盒的加密算法，并将加密算法提供为用于加密的公钥。