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Apparatus and method for giving the compressed encryption functionality to integer-based homomorphic encryption schemes

机译:用于将压缩加密功能赋予基于整数的同态加密方案的设备和方法

摘要

The present invention relates to a compressed encryption and decryption apparatus comprising: an interface receiving a public key, a secret key and a compression ratio; a memory storing instructions for encryption and decryption of plaintexts; and a processor encrypting and decrypting plaintexts according to the instruction, wherein the instruction comprises instructions performing; generating an extended public key and an extended secret key by revising the public key and the secret key according to the compression ratio; outputting the extended public key; receiving compressed ciphertext; and decrypting the compressed ciphertext using modulo operation for multiplication of the extended secret key and the compressed ciphertext.
机译:本发明涉及一种压缩的加密和解密设备,包括:接收公共密钥,秘密密钥和压缩率的接口;存储器存储用于明文的加密和解密的指令;处理器,根据该指令对明文进行加密和解密。通过根据压缩比修改公钥和私钥,生成扩展公钥和扩展私钥;输出扩展的公钥;接收压缩密文;使用模运算将扩展的秘密密钥和压缩的密文相乘,对压缩的密文进行解密。

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