具有自我驗證能力之祕密通訊方法SECRET COMMUNICATION METHOD WITH SELF-AUTHENTICATION CAPABILITY

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

14/013,627

專利證號

US 9,313,021 B2

專利獲證名稱

具有自我驗證能力之祕密通訊方法SECRET COMMUNICATION METHOD WITH SELF-AUTHENTICATION CAPABILITY

專利所屬機關 (申請機關)

國立交通大學

獲證日期

2016/04/12

技術說明

本法考慮實際情形，由於攻擊者極有可能為了干擾收送雙方的機密通訊，對經手的載體，無論有無偵測到機密訊息的存在，都對其進行蓄意地修改或難以察覺的更動，以破壞隱匿其中的機密訊息，達到擾亂雙方機密通訊的目的，使得訊息接收者在不知情的狀況下，取出錯誤的機密訊息而不自知。本法之技術特點為它是首度讓訊息接收方在沒有任何額外訊息的援助下，卻能自我驗證機密訊息完整性與真確性的機密傳輸方法，此法為首個可以抵抗主動式攻擊的機密傳輸方法。 A new covert communication method with a self-authentication capability for secret data hiding in spreadsheets using the information sharing technique is proposed. At the sender site, a secret message is transformed into shares by Shamir’s (k, n)-threshold secret sharing scheme with n = k + 1, and the generated k + 1 shares are embedded into the number items in a spreadsheet as if they are part of the spreadsheet content. And at the receiver site, every k shares among the k + 1 ones then are extracted from the stego-spreadsheet to recover k + 1 copies of the secret, and the consistency of the k + 1 copies in value is checked to determine whether the embedded shares are intact or not, achieving a new type of blind self-authentication of the embedded secret. By dividing the secret message into segments and applying to each segment the secret sharing scheme, achieving a covert communication process with the double functions of information hiding and self-authentication.

備註

本會(收文號1110027136)回應該校111年5月12日陽明交大研產學字第1110015716號函申請終止維護專利(國立陽明交通大學)

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