| 发明名称 | Cipher communication method and apparatus for the same | ||
| 摘要 | A cipher communication method for an encryption apparatus an includes: receiving a second encryption key while performing a cipher communication using a first encryption key; storing encryption key input information on the first and second encryption keys in a static region; copying the stored encryption key input information into a dynamic region; selecting any one of the first and second encryption keys based on the copied encryption key input information and current time information; generating encryption key position information and encryption key selection information on the selected encryption key; and transmitting a cipher text and the encryption key selection information to another encryption apparatus connected to the encryption apparatus through a network such that the another encryption apparatus acquires an encryption key to decrypt the cipher text. | ||
| 申请公布号 | US8787573(B2) | 申请公布日期 | 2014.07.22 |
| 申请号 | US201213572458 | 申请日期 | 2012.08.10 |
| 申请人 | Electronics and Telecommunications Research Institute | 发明人 | Nam Taek-Jun;Ahn Byeong-Ho |
| 分类号 | H04L9/00 | 主分类号 | H04L9/00 |
| 代理机构 | LRK Patent Law Firm | 代理人 | LRK Patent Law Firm |
| 主权项 | 1. A cipher communication method of an encryption apparatus for seamless cipher communication with another encryption apparatus, the method comprising: receiving a second encryption key from another encryption apparatus connected to the encryption apparatus over a network while the encryption apparatus is using a first encryption key to make a cipher communication; storing encryption key input information on the first encryption key and the second encryption key in a static region; copying the stored encryption key input information into a dynamic region; selecting any one of the first and second encryption keys by comparing the copied encryption key input information on the first encryption key, the copied encryption key input information on the second encryption key, and current time information; generating encryption key position information and encryption key selection information on the selected encryption key; and transmitting a cipher text and the encryption key selection information to the other encryption apparatus such that the other encryption apparatus acquires an encryption key to decrypt the cipher text. | ||
| 地址 | Daejeon KR | ||