WO2012094861A1 - 一种智能终端、接收端及利用智能终端进行会签的方法 - Google Patents

一种智能终端、接收端及利用智能终端进行会签的方法 Download PDF

Info

Publication number
WO2012094861A1
WO2012094861A1 PCT/CN2011/074085 CN2011074085W WO2012094861A1 WO 2012094861 A1 WO2012094861 A1 WO 2012094861A1 CN 2011074085 W CN2011074085 W CN 2011074085W WO 2012094861 A1 WO2012094861 A1 WO 2012094861A1
Authority
WO
WIPO (PCT)
Prior art keywords
watermark
information
digital watermark
file
module
Prior art date
Application number
PCT/CN2011/074085
Other languages
English (en)
French (fr)
Inventor
赵清毅
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2012094861A1 publication Critical patent/WO2012094861A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/32Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00General purpose image data processing
    • G06T1/0021Image watermarking
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/60Digital content management, e.g. content distribution
    • H04L2209/608Watermarking

Definitions

  • Intelligent terminal receiving end and method for signing by intelligent terminal
  • the present invention relates to the field of mobile communications, and in particular, to an intelligent terminal, a receiving end, and a method for performing a signing using an intelligent terminal.
  • the terminal has become more and more powerful, and now it has developed into a smart terminal stage.
  • the functions of peripherals are getting stronger and stronger, the processing speed of chips is getting faster and faster, and the capacity of memory is getting larger and larger, which can realize many functions that were originally realized but cannot be realized.
  • As a high-end smart terminal its office assistant function has been favored by more and more business people. Frequent trading activities need to be signed or stamped in many cases.
  • the signing person can't handle the business in person, the documents to be signed can only be sent by mail -> Print -> Signature of the signing person -> Fax back to the signed document or by scanning The document has been signed and signed back by mail. If the mail or fax receipt is counterfeited, it will cause great losses to the business.
  • the current off-site text will have the following defects:
  • Digital watermarking technology is a direction in the field of anti-counterfeiting and information security technology. It is a content-based non-cryptographic mechanism information hiding technology. It embeds watermark information by modifying the content of media data to achieve information hiding. The embedded watermark can be detected by special technical software or instruments. As a basis for authentication, it is very suitable for digital signing.
  • the existing media watermarking technology has the following drawbacks:
  • the watermark type is single. Many of the existing digital watermarks are a set of passwords or a picture stored in memory.
  • the user base is small. Due to the existence of the above four defects, the application of digital watermarks in daily commercial activities is limited, and more is used in the anti-piracy version of intellectual property.
  • the object of the present invention is to provide an intelligent terminal, a receiving end, and a method for signing by using an intelligent terminal, thereby enhancing the portability and timeliness of the signing.
  • the present invention provides a method for using a smart terminal for signing, the method comprising: receiving a signature of a signatory, adding the signature to a file to be signed; and making a digital watermark, the number The watermark is added to the file by a preset algorithm, and the file is sent to the sign accepting party.
  • the method further includes: collecting information required to create the digital watermark, the information comprising one or a combination of one of: a password, a signature handwriting, sound information, and image information, or a combination thereof.
  • the sound information is a voice of the signing person
  • the image information is a shape feature of the signing person.
  • the method further comprises: receiving a digital watermark security level selected by the signing person, and determining information to be collected according to the digital watermark security level.
  • the method further includes: after receiving the file, the sign receiving party extracts a digital watermark from the file, compares it with a locally pre-stored signing watermark information, and outputs a signing result.
  • the present invention further provides an intelligent terminal, where the smart terminal includes: a signing module, configured to: receive a signature of a signatory, and add the signature to a file to be signed;
  • a watermark generating module configured to: create a digital watermark; a watermark embedding module, configured to: add the digital watermark to the file by using a preset algorithm; and a file sending module, configured to: send the file Give the signing party a sign.
  • the smart terminal further includes: an information collecting unit, configured to: collect information required for the digital watermark, the information includes one or a combination of the following: a password, a signature handwriting, a sound information, and an image information. One or a combination thereof.
  • the information gathering unit includes one or a combination of an audio input device, a video input device, and a human-machine interaction device.
  • the sound information is a voice of the signing person
  • the image information is a shape feature of the signing person.
  • the smart terminal further includes a security level selecting unit, where: the security level selecting unit is configured to: receive a digital watermark security level selected by the signing person; the information collecting unit is further configured to: according to the digital watermark security The level determines the information that needs to be collected.
  • the present invention further provides a digital watermark receiving end, the digital watermark receiving end comprising: a watermark extracting module, configured to: after receiving the file of the signing person, extract a digital watermark from the file; a storage module, configured to: store the signing watermark information; the watermark comparison module is configured to: compare the digital watermark extracted by the digital watermark extraction module with the watermark information of the signing person stored in the watermark storage module, to obtain a signing And an output device module configured to: output the result of the signing.
  • a watermark extracting module configured to: after receiving the file of the signing person, extract a digital watermark from the file
  • a storage module configured to: store the signing watermark information
  • the watermark comparison module is configured to: compare the digital watermark extracted by the digital watermark extraction module with the watermark information of the signing person stored in the watermark storage module, to obtain a signing
  • an output device module configured to: output the result of the signing.
  • the invention has the following effects: the confidentiality of the signing is high, the highest level of the digital watermark is the characteristic of the personal information, and others are difficult to counterfeit; the processing speed is fast, and the current frequency of the intelligent terminal chip can reach 500 MHz or even higher, and the image processing also has
  • the special built-in hardware module greatly improves the speed of watermark generation and embedding, and can fully meet the user experience requirements. Portability and versatility are strong. All the processes of signing people only need one intelligent terminal to complete; Popularity is strong, terminal Widespread use, increased market share of smart terminals, can be applied to this method;
  • the variety of digital watermarks provides digital watermarks in multiple levels, multiple types, and multiple embedded algorithms; and simple transmission, using a wider coverage wireless network without relying on wired networks.
  • the invention can be used for issuing applications such as file encryption transmission, personal authentication and the like.
  • FIG. 1 is a system block diagram of the present invention
  • FIG. 2 is an explanatory diagram of digital watermark generation according to an embodiment of the present invention
  • 3 is an explanatory diagram of a digital watermark adding algorithm related to the present invention
  • FIG. 4 is a flowchart of watermark generating and embedding processing at the transmitting end of the present invention
  • FIG. 5 is a flowchart of invalidating and invalidating the watermarking at the receiving end of the present invention.
  • An embodiment of the present invention provides a method for using a smart terminal to perform a conference, the method comprising: receiving a signature of a signatory, adding the signature to a file to be signed; creating a digital watermark, and adopting the digital watermark through a preset algorithm Adding to the file, sending the file to the sign receiving party; and after receiving the file, the sign receiving party extracts the digital watermark from the file, and compares with the locally pre-stored signing person watermark information, The output will sign the result.
  • the file to be signed may be obtained locally, or sent by the other party to the signing party.
  • the above method further includes: collecting information required for the digital watermark, the information comprising one or a combination of: a password, a signature handwriting, a sound information, an image information, or a combination thereof.
  • the sound information is a voice of the signing person
  • the image information is a shape feature of the signing person.
  • the method further includes: receiving a digital watermark security level selected by the signing person, and determining information that needs to be collected according to the digital watermark security level. Of course, you can also make a digital watermark by setting the default information directly without defaulting.
  • the embodiment of the present invention further provides an intelligent terminal, where the smart terminal includes: a signing module, which is configured to: receive a signature of the signing person, and add the sign to the document to be signed a watermark generating module, configured to: create a digital watermark; a watermark embedding module, configured to: add the digital watermark to the file by a preset algorithm; and a file sending module, configured to: The document is sent to the signing recipient.
  • the intelligent terminal further includes: an information collecting unit, configured to: collect information required for the digital watermark, the information includes one or a combination of the following: a password, a signature handwriting, a sound information, and an image information. One or a combination thereof.
  • the information collection unit includes one or a combination of an audio input device, a video input device, and a human-machine interaction device.
  • the sound information is a voice of the signing person
  • the image information is a shape feature of the signing person. Of course, it can also be other sound or image information agreed by both parties.
  • the smart terminal further includes a security level selection unit: the security level selection unit is configured to: receive a digital watermark security level selected by the signatory; the information collection unit is further configured to: according to the digital watermark security The level determines the information that needs to be collected.
  • the present invention also provides a digital watermark receiving end, comprising: a watermark extracting module, configured to: after receiving the file of the signing person, extract a digital watermark from the file; and the watermark storage module is configured to: store the signing person a watermark information; a watermark comparison module, configured to: compare a digital watermark extracted by the digital watermark extraction module with a watermark information stored in the watermark storage module to obtain a result of the signing; and an output device module, configured to : Output the result of the signing.
  • the invention is further illustrated by the following specific examples.
  • the present invention includes an intelligent terminal and a receiving end information processing device, where: the intelligent terminal includes:
  • video input devices such as high-pixel terminal cameras
  • human-computer interaction devices including touch screens and keyboards
  • the intelligent terminal application processing chip includes several modules: a text input, a processing module, and an image processing module (providing a clear signature file picture, which can extract the appearance characteristics of the signing person), An audio processing module (which extracts the signature sound characteristics of the person), a watermark generation module, and a watermark embedding module.
  • the receiving end information processing device can be either a PC or a server, and includes the following modules: a watermark extraction module, a watermark storage module, a watermark comparison module, and an output device module.
  • the intelligent terminal communicates with the receiving device through the network, including but not limited to the General Packet Radio Service (GPRS) and the 3rd Generation (3G) network.
  • GPRS General Packet Radio Service
  • 3G 3rd Generation
  • Step 101 The signing process initiator sends the file to the signing person; the file may be sent by email, or sent by other means, such as real-time transmission.
  • Step 102 The signing person adds his signature to the file to be signed by text editing on the smart terminal;
  • Step 103 the signing person selects the digital watermark security level of the current transmission on the smart terminal; the watermark security level may be high, medium and low. Level, low level only enters password as authentication; Intermediate uses signature handwriting as authentication; Advanced uses personal characteristics as authentication, such as face shape, and sound characteristics; of course, you can set more security levels as needed, or according to The other information sets the security level.
  • Step 104 Create a corresponding digital watermark according to the selected digital watermark security level
  • Step 105 Add the digital watermark to the file to be returned through a certain algorithm, and send the file back to the initiator of the signing process
  • Step 106 The initiator performs digital watermark extraction detection on the received receipt file, and compares with the pre-stored watermark information of the check-in person in the device database. If the detection succeeds, the authentication succeeds. If the failure is successful, the current failure depends on the situation to select whether to re-issue the receipt. . Of course, you can also do not perform step 101. The signer will sign the local file, add the watermark, and send it to the signing recipient. The following implementation of the technical solution will be further described in detail with reference to the accompanying drawings.
  • 1 is a system block diagram of the present invention, including a smart terminal 101, a receiving end information processing device 102,
  • the smart terminal 101 includes: a touch screen 105 for human-computer interaction, a keyboard 106, a microphone 107, a camera 108, and a smart application processor suite 109. Both the touch screen 105 and the keyboard 106 serve as touch input devices. On some full touch smart terminals, the keyboard 106 is not required.
  • the microphone 107 is used for collecting sound information
  • the camera 108 is used for collecting image information. It is recommended to use a high-pixel camera, so that the collected image is clear and accurate, and is easy to recognize.
  • the intelligent application processor suite 109 is the core of the intelligent terminal and includes a text input, a processing module, an audio processing module, an image processing module, a watermark generating module, a watermark embedding module and a file sending module.
  • the receiving end information processing device 102 may be a PC, or may be a server or a group of computers or the like that can provide a high-speed computing mass storage function.
  • the receiving end information processing device 102 needs to be connected to the network, and includes a watermark extracting module 110, a watermark storing module 111, a watermark comparing module 112, and an output device module 113.
  • the watermark extraction module 110 and the watermark embedding module within the smart application processor suite 109 provide inverse operations for extracting the digital watermark.
  • the watermark storage module 111 provides pre-stored person information, such as handwriting, personal facial features, sound features or terminal numbers (a way of password watermarking) and the like.
  • the watermark comparison module 112 compares the digital watermark extracted by the watermark extraction module 110 with the information in the watermark storage module 111, and determines whether the acquired digital watermark is valid. The final result of the judgment is notified to the initiator of the signing process by the output output device module 113, and the output device module 113 has many forms, such as a display, a digital sound or The message is informed.
  • GPRS/3G air interface 103 including but not limited to GPRS/Enhanced Data Rate for GSM Evolution (EDGE)/WCDMA/Code Division Multiple Access (CDMA)/WIFI, in short ⁇ Including all current 2G, 3G and future new communication standards.
  • Wired network 104 is not required, and wired network 104 may be omitted if the receiving end information processing device can obtain information directly from the wireless air interface.
  • Fig. 2 is a diagram for explaining an example of digital watermark generation.
  • FIG. 2 is an explanatory diagram illustrating an example of a digital watermark adding algorithm.
  • the generated digital watermark can be described as a set of signal streams.
  • the smart terminal is used to edit the document on the file.
  • the level of the watermark is selected to be 1 J.
  • the encryption method such as password
  • the intermediate level is selected, the personal handwriting is used; when the advanced level is selected, the personal characteristic is used.
  • a digital watermark is created. After the digital watermark is created, the digital watermark is added to the file to be protected, and the file is sent back after the embedding is completed.
  • Figure 5 is a flow chart of the receiving end watermark check of the present invention.
  • the digital watermark is extracted by using the watermark extraction module 110, and then compared with the watermark information of the signing person provided in the watermark storage module 111.
  • this process uses a high-encryption personal voice encryption method, and the database provides pre-reserved caller voice information as a comparison. If the comparison result is consistent, the watermark is valid, the signature is successful, and the signature is valid. If the comparison result is inconsistent, the watermark is invalid. The signing will be invalid. According to the situation, whether the sender should be notified to retransmit.
  • a document needs to be signed, but a person with signature authority is on a business trip.
  • the initiator of the signing process can send the file to the terminal of the signing party.
  • the terminal pops up an interface, allowing the user to select which level of watermark to use for encryption.
  • it includes three levels: low, medium, and high.
  • the low-level watermark is simple to set up, and the authentication speed is fast, such as using a password.
  • the medium-level watermark has a slightly higher confidentiality, such as using a touch screen signature handwriting as a watermark; the high-level watermark has good confidentiality, and the user is utilized.
  • Personal characteristics such as the contours of a person's face, the frequency domain characteristics of the sound when the individual says "agree” and the other words are difficult for others to imitate.
  • the encrypted watermark should be the content that was previously set and stored with the information processing device at the receiving end, such as the agreed password, the saved handwriting, the face outline when you are free of the crown, or the frequency of the sound when you agree to the two words. Domain characteristics, etc. After selecting the digital watermark security level, the digital watermark is generated next.
  • the user uses the terminal's keyboard, touch screen, microphone or camera to collect the corresponding information to create a digital watermark.
  • the digital watermark is embedded in the file to be encrypted and sent back over the network.
  • the receiving device extracts the digital watermark by using an algorithm opposite to the embedding algorithm.
  • the algorithm can be agreed in advance, or when the terminal encrypts, the encryption algorithm is written into the file header, and is detected by the receiving device and then adaptive.
  • the digital watermark is extracted and compared with the one stored in the watermark storage module.
  • the present invention further provides a digital watermark receiving end, comprising: a watermark extracting module, configured to: after receiving the file of the signing person, extracting the digital watermark from the file;
  • the watermark storage module is configured to: store the watermark information of the signing person;
  • the watermark comparison module is configured to: compare the digital watermark extracted by the digital watermark extraction module with the watermark information of the signing person stored in the watermark storage module, to obtain The result of the signing; and an output device module, which is set to: output the result of the signing.
  • the invention utilizes the powerful information processing capability of the intelligent terminal chip of the present invention to complete the function of transmitting the digital watermark, so as to achieve the purpose of enhancing information transmission security, anti-counterfeiting and anti-counterfeiting. For those who are often on a business trip, not easy to find a printer scanner, but there are a lot of things to sign, the smart terminal provided by the present invention will become a good helper for their business office.
  • the invention can be used for issuing applications such as file encryption transmission, authorized reading, personal information authentication and the like.
  • the present invention has high confidentiality, fast processing speed, portability and versatility, strong popularity, and abundant digital watermark types.
  • the invention can be used for issuing applications such as file encryption transmission, personal authentication and the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Image Processing (AREA)
  • Storage Device Security (AREA)

Description

一种智能终端、 接收端及利用智能终端进行会签的方法
技术领域 本发明涉及移动通信领域, 尤其涉及一种智能终端、 接收端及利用智能 终端进行会签的方法。
背景技术
终端经过 20多年的发展,功能越来越强,现如今已经发展到智能终端阶 段。 外设的功能越来越强, 芯片的处理速度越来越快, 内存的容量越来越大, 可以实现许多原先想实现但实现不了的功能。 作为高端智能终端, 其办公辅 助功能已经受到越来越多商务人士的青睐。 频繁的交易活动在很多时候需要签字或盖章, 当会签人出差在外无法当 面处理时, 只能通过邮件发送待签文件- >打印- >会签人签字- >传真回已签好 文件或者通过扫描已签完文件并用邮件传回的方式进行签字。 假如邮件或传 真的回执被人仿冒, 将给商业活动造成极大的损失。 总之, 现在的异地文字会签有以下几个缺陷:
1、 易仿冒;
2、设备便携性差, 打印机和扫描仪无法随身携带, 且常出现所处地周围 找不到的情况; 3、 及时性弱, 由于第二条缺陷, 导致很多文件不能立刻签署发回。 数字水印技术是防伪及信息安全技术领域的一个方向, 它是基于内容的 非密码机制信息隐藏技术, 通过对媒体数据的内容作微量修改来嵌入水印信 息, 从而达到信息隐藏的目标。 嵌入的水印可以通过专门的技术软件或仪器 检测出来, 作为鉴权的依据, 十分适合数字化会签。 现有的媒体添加水印技术有以下几个缺陷:
1、 处理速度。 添加水印的算法越复杂, 添加的水印数据越多, 处理速度 越慢。 如果使用专业仪器添加数字水印, 则成本较高; 如果使用一般的处理 器, 则反应时间较长, 很难让用户满意。
2、便携性和通用性。专门的水印仪器处理核心很多是现场可编程门阵列 ( Field Programmable Gate Array, FPGA )或者专用集成电路 ( Application Specific Integrated Circuits, ASIC ) , 功能单一, 且不宜随身携带。
3、水印种类单一。现有的很多数字水印都是一组密码或者保存在存储器 中的一幅图片等。
4、 传送工具。 现有技术很多是利用个人电脑(Personal Computer, PC ) 添加水印, 再通过有线宽带传递出去, 一旦到了不方便有线上网的地方就会 受到限制。
5、用户群小。 由于上述四个缺陷的存在, 导致现在数字水印在日常商业 活动中应用范围受到限制, 更多的是用在知识产权防盗版等方面。
发明内容 本发明的目的在于提出一种智能终端、 接收端及利用智能终端进行会签 的方法, 增强会签便携性和及时性。 为了解决上述问题, 本发明提供了一种利用智能终端进行会签的方法, 该方法包括: 接收会签人的签字, 将所述签字加入到待签的文件中; 以及 制作数字水印, 将所述数字水印通过预设算法加入到所述文件中, 将所 述文件发送给会签接收方。 所述方法还包括: 釆集制作所述数字水印所需信息, 所述信息包括如下 之一或其组合: 密码、 签字笔迹、 声音信息、 以及图像信息中的一种或其组 合。 所述方法中, 所述声音信息为所述会签人的语音, 所述图像信息为所述 会签人的外形特征。 釆集制作所述数字水印所需信息的步骤之前, 所述方法还包括: 接收所 述会签人选择的数字水印安全级别, 根据所述数字水印安全级别确定需要釆 集的信息。 所述方法还包括: 所述会签接收方接收到所述文件后, 从所述文件中提取数字水印, 与本 地预存的会签人水印信息进行对比, 输出会签结果。 为了解决上述问题,本发明还提供了一种智能终端,所述智能终端包括: 签字模块, 其设置为: 接收会签人的签字, 将所述签字加入到待签的文 件中;
水印生成模块, 其设置为 : 制作数字水印; 水印嵌入模块, 其设置为 : 将所述数字水印通过预设算法加入到所述文 件中; 以及 文件发送模块, 其设置为: 将所述文件发送给会签接收方。 所述智能终端还包括: 信息釆集单元, 其设置为 : 釆集制作所述数字水印所需信息, 所述信息 包括如下之一或其组合: 密码、 签字笔迹、 声音信息、 以及图像信息中的一 种或其组合。 所述智能终端中,所述信息釆集单元包括音频输入设备、视频输入设备、 以及人机交互设备之一或其组合。 所述智能终端中, 所述声音信息为所述会签人的语音, 所述图像信息为 所述会签人的外形特征。 所述智能终端还包括安全级别选择单元, 其中: 所述安全级别选择单元设置为: 接收所述会签人选择的数字水印安全级 别; 所述信息釆集单元还设置为: 根据所述数字水印安全级别确定需要釆集 的信息。 为了解决上述问题, 本发明还提供了一种数字水印接收端, 该数字水印 接收端包括: 水印提取模块, 其设置为: 接收到会签人的文件后, 从所述文件中提取 数字水印; 水印存储模块, 其设置为: 存储会签人水印信息; 水印对比模块, 其设置为: 将所述数字水印提取模块提取的数字水印与 所述水印存储模块中存储的会签人水印信息进行对比, 得到会签结果; 以及 输出设备模块, 其设置为: 输出所述会签结果。
本发明具有如下效果: 会签的保密性高,数字水印最高级别是个人信息特征,其他人很难仿冒; 处理速度快, 现在的智能终端芯片主频已经可达到 500MHZ甚至更高, 图像处理也有了专门的内置硬件模块,使得水印生成和嵌入的速度大大提高, 完全可以满足用户体验要求; 便携性和通用性强, 会签人的全部流程只需要一部智能终端即可完成; 普及性强, 终端的广泛使用, 智能终端市场占有率的提高, 都可应用这 一方法;
数字水印种类丰富, 提供多种级别, 多种类型, 多种嵌入算法的数字水 印; 以及 传送简单, 使用覆盖范围更广的无线网络, 无需依赖有线网络。 本发明可用于签发文件加密传递, 个人鉴权等应用。
附图概述 图 1是本发明的系统框图; 图 2是本发明实施例数字水印生成说明图; 图 3是本发明相关的数字水印添加算法说明图; 图 4是本发明的发送端水印生成、 嵌入处理流程图; 图 5是本发明的接收端水印生效作废流程图。
本发明的较佳实施方式 为使本发明的目的、 技术方案和优点更加清楚明白, 下文中将结合附图 对本发明的实施例进行详细说明。 需要说明的是, 在不冲突的情况下, 本申 请中的实施例及实施例中的特征可以相互任意组合。 本发明实施例提供一种利用智能终端进行会签的方法, 该方法包括; 接收会签人的签字, 将所述签字加入到待签的文件中; 制作数字水印, 将所述数字水印通过预设算法加入到所述文件中, 将所述文件发送给会签接 收方; 以及 所述会签接收方接收到所述文件后, 从所述文件中提取数字水印, 与本 地预存的会签人水印信息进行对比, 输出会签结果。 上述方法中, 所述待签文件可从本地获得, 或者由会签另一方发给会签 人。 上述方法还包括: 釆集制作所述数字水印所需信息, 所述信息包括如下 之一或其组合: 密码、 签字笔迹、 声音信息、 图像信息中的一种或其组合。 上述方法中, 所述声音信息为所述会签人的语音, 所述图像信息为所述 会签人的外形特征。 釆集制作所述数字水印所需信息之前, 上述方法还包括: 接收所述会签 人选择的数字水印安全级别, 根据所述数字水印安全级别确定需要釆集的信 息。 当然, 也可以不进行选择, 直接按默认设置, 釆集默认的信息制作数字 水印。 本发明实施例还提供一种智能终端, 所述智能终端包括; 签字模块, 其设置为: 接收会签人的签字, 将所述签字加入到待签的文 件中; 水印生成模块, 其设置为: 制作数字水印; 水印嵌入模块, 其设置为: 将所述数字水印通过预设算法加入到所述文 件中; 以及 文件发送模块, 其设置为: 将所述文件发送给会签接收方。 其中, 所述智能终端还包括: 信息釆集单元, 其设置为: 釆集制作所述数字水印所需信息, 所述信息 包括如下之一或其组合: 密码、 签字笔迹、 声音信息、 图像信息中的一种或 其组合。 其中, 所述信息釆集单元包括音频输入设备、 视频输入设备、 以及人机 交互设备之一或其组合。 其中, 所述声音信息为所述会签人的语音, 所述图像信息为所述会签人 的外形特征。 当然, 也可以是双方约定好的其他声音或图像信息。 其中, 所述智能终端还包括安全级别选择单元: 所述安全级别选择单元设置为: 接收所述会签人选择的数字水印安全级 别; 所述信息釆集单元还设置为: 根据所述数字水印安全级别确定需要釆集 的信息。 本发明还提供一种数字水印接收端, 其包括: 水印提取模块, 其设置为: 接收到会签人的文件后, 从所述文件中提取 数字水印; 水印存储模块, 其设置为: 存储会签人水印信息; 水印对比模块, 其设置为: 将所述数字水印提取模块提取的数字水印与 所述水印存储模块中存储的会签人水印信息进行对比, 得到会签结果; 以及 输出设备模块, 其设置为: 输出所述会签结果。 下面通过具体实施例进一步说明本发明。 本发明包括智能终端和接收端信息处理设备, 其中: 智能终端包括:
( 1 )智能终端应用处理芯片;
( 2 )视频输入设备, 比如, 高像素终端摄像头; ( 3 )人机交互设备, 包括触摸屏以及键盘等;
( 4 )音频输入设备, 比如, 麦克风; 其中, 智能终端应用处理芯片中包含几个模块: 文本输入、 处理模块, 图像处理模块(可提供清晰的签字文件图片, 可提取会签人相貌特征) , 音 频处理模块(可提取会签人声音特征), 水印生成模块, 以及水印嵌入模块。 接收端信息处理设备既可以是一台 PC,也可以是一台服务器, 包括如下 模块: 水印提取模块, 水印存储模块, 水印对比模块, 以及输出设备模块。 智能终端与接收端设备间通过网络进行通信, 包括但不限于通用无线分 组业务(General Packet Radio Service, GPRS ) 、 第三代移动通讯 ( the 3rd Generation, 3G ) 网。 具体实现步骤如下: 步骤 101 , 会签流程发起人将文件发送给会签人; 可通过邮件方式发送所述文件, 或其他方式发送, 比如实时传送。 步骤 102 , 会签人在智能终端上通过文本编辑将自己的签字加入到待签 文件中; 步骤 103 , 会签人在智能终端上选择本次传输的数字水印安全级别; 水印安全级别可为高中低三个等级, 低级只是输入密码作为鉴权; 中级 利用签字笔迹作为鉴权; 高级利用个人特征作为鉴权, 如脸部外形、 以及声 音特征等; 当然也可以根据需要设置更多安全级别, 或者根据其他信息设置 安全级别, 比如, 将上述信息结合起来设置更高等级的安全级别, 具体可以 根据需要而定, 本发明对此不作限定。 步骤 104, 根据所选的数字水印安全级别, 制作相应数字水印; 步骤 105 , 将数字水印通过一定算法加入到待传回的文件当中, 将所述 文件发回会签流程发起人;
可通过邮件方式发送所述文件, 或其他方式发送, 比如实时传送。 步骤 106 , 发起人对收到的回执文件进行数字水印提取检测, 与设备数 据库中预存的会签人水印信息相对照, 检测成功则鉴权成功, 不成则本次失 败根据情况选择是否要重新发回执。 当然, 也可以不执行步骤 101 , 会签人对本地文件进行签字、 加入水印 后发送给会签接收方。 下面对技术方案的实施将会结合附图作进一步详细描述。 图 1是本发明的系统框图,包括智能终端 101 ,接收端信息处理设备 102,
GPRS/3G空中接口 103和有线网络 104。 其中智能终端 101包括: 人机交互所用的触摸屏 105 ,键盘 106 , 麦克风 107 , 摄像头 108, 以及智能应用处理器套件 109。 触摸屏 105和键盘 106都 作为触摸式的输入设备, 在某些全触摸的智能终端上, 键盘 106不是必备。 麦克风 107用于釆集声音信息, 摄像头 108用于釆集图像信息, 推荐使用高 像素的摄像头, 这样釆集到的图像清晰准确, 便于识别。 智能应用处理器套 件 109是智能终端的核心, 内包含文本输入、 处理模块, 音频处理模块, 图 像处理模块, 水印生成模块, 水印嵌入模块和文件发送模块。 接收端信息处理设备 102可以是一台 PC,也可以是一台服务器或一组计 算机等等能提供高速计算大容量存储功能的设备或设备组。 接收端信息处理 设备 102需要接到网络上, 其包括水印提取模块 110 , 水印存储模块 111 , 水 印对比模块 112和输出设备模块 113。 水印提取模块 110与智能应用处理器 套件 109内的水印嵌入模块提供反向运算用以提取出数字水印。 水印存储模 块 111提供预先储存的会签人信息, 例如笔迹、 个人脸部特征、 声音特征或 者终端号码(密码水印的一种方式)等。 水印对比模块 112将水印提取模块 110提取的数字水印与水印存储模块 111 内的信息进行对比, 判断获取到的 数字水印是否有效。 判断的最终结果通过输出输出设备模块 113通知会签流 程的发起人, 输出设备模块 113的形式有很多, 比如显示器、 数字提示音或 者短信告知。
GPRS/3G空中接口 103 , 包括但不限于 GPRS/增强型数据速率 GSM演 进技术( Enhanced Data Rate for GSM Evolution, EDGE ) /WCDMA/码分多址 ( Code Division Multiple Access, CDMA ) /WIFI, 总之嚢括目前所有的 2G、 3G以及今后新的通信制式。 有线网络 104不是必需, 如果接收端信息处理设备可以直接从无线空中 接口上获取信息的话, 有线网络 104可被省略。 图 2是举例一个数字水印生成说明图。 当选择数字水印安全级别为低的 时候, 使用密码水印, 最常见的一种方式, 这里不再详述; 当选择数字水印 安全级别为中的时候, 可以选择个人笔迹 201生成数字水印; 当选择数字水 印安全级别为高的时候, 可以选择使用个人特征生成数字水印。 如图 2中所 示, 用户 203对智能终端 101说话, 智能终端 101釆集到声音信息, 生成包 含用户声音特征的数字水印 204; 用户 203使用智能终端 101对自己拍照, 生成包含用户外貌特征的数字水印 205。 图 3是举例一个数字水印添加算法说明图。 生成的数字水印可以被描述 成一组信号流。 将水印信号的字节长度写入待保护图像文件标头部分的保留 字节中, 然后将水印信号转化为二进制数据码流, 将待保护图像文件图像数 据部分的每个字节的高 7位依次异或后再与上述二进制数据码流异或后的结 果写入最低位, 最终将加入水印信号的图像数据输出。 本发明中可适用的水 印添加算法有^^多, 国内外相关专利不少, 在此不加详述。 图 4是发送端水印生成、 嵌入处理流程图。 首先, 会签流程的发起人通 过网络将待会签的文件发送到会签人的智能终端中。 会签人收到文件后, 使 用智能终端在文件上进行编辑会签。 签字完成后, 就要选择对水印加密的级 另1 J , 选择低级时, 使用密码等加密方式; 选择中级时, 使用个人笔迹等方式; 选择高级时, 就使用个人特征的方式。 密码输入完成、或个人笔迹输入完成, 或个人特征釆集完成后, 制作数字水印。 制作完数字水印, 将数字水印添加 进待保护的文件中, 嵌入完成后将文件发回。 图 5是本发明的接收端水印检验流程图。 图 1中的接收端信息处理设备 收到文件后, 使用水印提取模块 110将数字水印提取出来, 然后与水印存储 模块 111中提供的会签人水印信息作对比。 例如, 本次流程釆用了高加密的 个人声音加密方式,则数据库中提供预先保留下的会签人声音信息作为对比。 如果对比结果一致, 则水印是有效的, 签字成功, 本次签字生效; 如果对比 结果不一致, 则水印无效, 本次会签作废, 根据情况看是否要通知发送方重 传。
以一次会签的流程为例, 具体说明一下本发明: 一份文件需要签字, 但是有签字权限的人在外地出差, 此时, 会签流程 的发起人可以将文件发送到会签人终端上。 会签人在终端上看到文件后, 可 以在终端上编辑图片或者键盘打字,将自己同意或不同意的意见写到文件里。 完成后, 终端弹出界面, 让用户选择使用何种级别的水印加密。 具体包括低 中高三个级别, 低级别的水印设置简单, 认证速度快, 例如使用密码; 中级 别的水印保密性稍高, 例如使用触摸屏签字笔迹作为水印; 高级别的水印保 密性好, 利用用户个人特征, 例如个人的脸部轮廓, 个人说 "同意" 两个字 时声音的频域特征等, 其他人很难模仿。 加密的水印应当是之前与会签接收 端信息处理设备定好并储存下的内容, 例如商定好的密码, 保存好的笔迹, 自己免冠时的脸部轮廓或者说 "同意" 两个字时声音的频域特征等。 选择了 数字水印安全级别后, 接下来生成数字水印。 根据前面选项的不同, 用户利 用终端的键盘、 触摸屏、 麦克或摄像头釆集相应信息制作数字水印。 制作完 成, 将数字水印嵌入到要加密的文件中, 通过网络发送回去。 接收端设备收 到文件后, 利用与嵌入算法相反的算法, 将数字水印提取出来。 算法可以事 先商定, 也可以终端加密时, 将加密算法写入文件头中, 由接收端设备检测 到后进行自适应。 数字水印提取出来与水印存储模块中保存的相比较, 相同 则数字水印有效, 不相同就作废, 将结果显示在人机交互界面上, 让会签流 程的发起人选择是否需要让会签人重新发送。 本发明还提供一种数字水印接收端, 其包括: 水印提取模块, 其设置为: 接收到会签人的文件后, 从所述文件中提取 数字水印; 水印存储模块, 其设置为: 存储会签人水印信息; 水印对比模块, 其设置为: 将所述数字水印提取模块提取的数字水印与 所述水印存储模块中存储的会签人水印信息进行对比, 得到会签结果; 以及 输出设备模块, 其设置为: 输出所述会签结果。 本发明利用现如今智能终端芯片强大的信息处理能力, 完成传送数字水 印的功能, 以达到增强信息传递安全性、 防伪防冒的目的。 对于那些经常出 差在外, 不易找到打印机扫描机, 却有一大堆事物需要签字的人士来说, 本 发明提供的智能终端将会成为他们商务办公的好帮手。 本发明可用于签发文件加密传递, 授权阅读, 个人信息鉴权等应用。
工业实用性 本发明会签的保密性高, 处理速度快, 便携性和通用性强, 普及性强且 数字水印种类丰富。 本发明可用于签发文件加密传递, 个人鉴权等应用。

Claims

权 利 要 求 书
1、 一种利用智能终端进行会签的方法, 该方法包括: 接收会签人的签字, 将所述签字加入到待签的文件中; 以及 制作数字水印, 将所述数字水印通过预设算法加入到所述文件中, 将所 述文件发送给会签接收方。
2、如权利要求 1所述的方法, 所述方法还包括: 釆集制作所述数字水印 所需信息, 所述信息包括如下之一或其组合: 密码、 签字笔迹、 声音信息、 以及图像信息中的一种或其组合。
3、如权利要求 2所述的方法,其中,所述声音信息为所述会签人的语音, 所述图像信息为所述会签人的外形特征。
4、如权利要求 2或 3所述的方法,釆集制作所述数字水印所需信息的步 骤之前, 所述方法还包括: 接收所述会签人选择的数字水印安全级别, 根据 所述数字水印安全级别确定需要釆集的信息。
5、 如权利要求 1所述的方法, 所述方法还包括: 所述会签接收方接收到所述文件后, 从所述文件中提取数字水印, 与本 地预存的会签人水印信息进行对比, 输出会签结果。
6、 一种智能终端, 所述智能终端包括: 签字模块, 其设置为: 接收会签人的签字, 将所述签字加入到待签的文 件中;
水印生成模块 , 其设置为: 制作数字水印; 水印嵌入模块 , 其设置为: 将所述数字水印通过预设算法加入到所述文 件中; 以及 文件发送模块 , 其设置为: 将所述文件发送给会签接收方。
7、 如权利要求 6所述的智能终端, 所述智能终端还包括: 信息釆集单元, 其设置为: 釆集制作所述数字水印所需信息, 所述信息 包括如下之一或其组合: 密码、 签字笔迹、 声音信息、 以及图像信息中的一 种或其组合。
8、如权利要求 7所述的智能终端, 其中, 所述信息釆集单元包括音频输 入设备、 视频输入设备、 以及人机交互设备之一或其组合。
9、如权利要求 7所述的智能终端, 其中, 所述声音信息为所述会签人的 语音, 所述图像信息为所述会签人的外形特征。
10、如权利要求 7、 8或 9所述的智能终端, 所述智能终端还包括安全级 别选择单元, 其中: 所述安全级别选择单元设置为: 接收所述会签人选择的数字水印安全级 别; 所述信息釆集单元还设置为: 根据所述数字水印安全级别确定需要釆集 的信息。
11、 一种数字水印接收端, 其包括: 水印提取模块, 其设置为: 接收到会签人的文件后, 从所述文件中提取 数字水印; 水印存储模块, 其设置为: 存储会签人水印信息; 水印对比模块, 其设置为: 将所述数字水印提取模块提取的数字水印与 所述水印存储模块中存储的会签人水印信息进行对比, 得到会签结果; 以及 输出设备模块, 其设置为: 输出所述会签结果。
PCT/CN2011/074085 2011-01-13 2011-05-16 一种智能终端、接收端及利用智能终端进行会签的方法 WO2012094861A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011100066556A CN102075928A (zh) 2011-01-13 2011-01-13 一种智能终端、接收端及利用智能终端进行会签的方法
CN201110006655.6 2011-01-13

Publications (1)

Publication Number Publication Date
WO2012094861A1 true WO2012094861A1 (zh) 2012-07-19

Family

ID=44034241

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/074085 WO2012094861A1 (zh) 2011-01-13 2011-05-16 一种智能终端、接收端及利用智能终端进行会签的方法

Country Status (2)

Country Link
CN (1) CN102075928A (zh)
WO (1) WO2012094861A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI509459B (zh) * 2014-01-03 2015-11-21 Trade Van Information Services Co 雲端電子公證服務方法及其系統
CN108053185A (zh) * 2017-12-27 2018-05-18 北京福田戴姆勒汽车有限公司 工程变更管理信息系统的密码会签方法及系统

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102609834A (zh) * 2012-02-01 2012-07-25 昆山百润科技有限公司 一种会签方法和系统
CN103002424B (zh) * 2012-12-31 2016-04-20 北京金和软件股份有限公司 短信息的数据处理系统
CN105391911B (zh) * 2014-09-05 2018-09-11 阿里巴巴集团控股有限公司 传真实现方法、装置以及系统
CN109640018A (zh) * 2018-12-12 2019-04-16 北京无线天利移动信息技术股份有限公司 一种用于电子化投保的证据采集方法及系统

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1991901A (zh) * 2005-12-31 2007-07-04 北京华旗数码影像技术研究院有限责任公司 一种嵌入指纹水印信息的方法和装置
CN1996378A (zh) * 2005-12-31 2007-07-11 北京华旗数码影像技术研究院有限责任公司 一种嵌入、检测虹膜水印信息的装置
US20090128859A1 (en) * 2007-11-21 2009-05-21 Brenda Daos System and method for generating watermarks on electronic documents
US7581105B2 (en) * 2003-12-16 2009-08-25 Sap Aktiengesellschaft Electronic signing apparatus and methods
CN101872420A (zh) * 2010-06-10 2010-10-27 石明霞 一种可加密的手写签批移动终端
CN201674561U (zh) * 2010-06-10 2010-12-15 石明霞 一种可加密的手写签批移动终端

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7581105B2 (en) * 2003-12-16 2009-08-25 Sap Aktiengesellschaft Electronic signing apparatus and methods
CN1991901A (zh) * 2005-12-31 2007-07-04 北京华旗数码影像技术研究院有限责任公司 一种嵌入指纹水印信息的方法和装置
CN1996378A (zh) * 2005-12-31 2007-07-11 北京华旗数码影像技术研究院有限责任公司 一种嵌入、检测虹膜水印信息的装置
US20090128859A1 (en) * 2007-11-21 2009-05-21 Brenda Daos System and method for generating watermarks on electronic documents
CN101872420A (zh) * 2010-06-10 2010-10-27 石明霞 一种可加密的手写签批移动终端
CN201674561U (zh) * 2010-06-10 2010-12-15 石明霞 一种可加密的手写签批移动终端

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI509459B (zh) * 2014-01-03 2015-11-21 Trade Van Information Services Co 雲端電子公證服務方法及其系統
CN108053185A (zh) * 2017-12-27 2018-05-18 北京福田戴姆勒汽车有限公司 工程变更管理信息系统的密码会签方法及系统

Also Published As

Publication number Publication date
CN102075928A (zh) 2011-05-25

Similar Documents

Publication Publication Date Title
US10554638B2 (en) Techniques to verify location for location based services
WO2012094861A1 (zh) 一种智能终端、接收端及利用智能终端进行会签的方法
CN1889419B (zh) 一种实现加密的方法及装置
Lee et al. Digital image sharing by diverse image media
IL138109A (en) Method and devices for digitally signing files, using a mobile device
WO2002073877A2 (en) System and method of user and data verification
CN102546174A (zh) 二维码加密/解密方法和防伪方法
WO2008030184A1 (en) Improved authentication system
CN102801724A (zh) 一种图形图像与动态密码相结合的身份认证方法
CN101808077B (zh) 信息安全输入处理系统和方法以及智能卡
WO2022252983A1 (zh) 一体化管理终端装置及一体化管理方法
CN101951320A (zh) 一种动态密码的实现方法、装置和系统
CN104780044A (zh) 一种基于手机、蓝牙和二维码的动态令牌型智能手表及实现方法
CN112243233A (zh) 一种基于蓝牙低功耗协议的ctid核验方法及装置
CN102231181B (zh) 用于文件加密的计算机系统及文件加密方法
TWI416922B (zh) 運用圖像式認證碼的認證系統及其方法
CN113826096A (zh) 利用用户生物特征识别数据的用户认证及签名装置和方法
CN104519039B (zh) 发话服务器、发话方法、发话系统、发话终端及移动终端
AL-Kateeb et al. steganography in colored images based on biometrics
CN111539713A (zh) 移动支付账户端用户凭证生成转换方法、系统及存储介质
CN101453538A (zh) 一种电子文件传真转接系统
US20160189015A1 (en) Data exchange methods, systems and apparatus using color images
CN116017437A (zh) 一种适用于移动通信的多方协同签名方法及装置
JP5405057B2 (ja) 情報通信装置および公開鍵認証方法
CN111641604A (zh) 基于网银证书的签章方法及基于网银证书的签章系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11855595

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11855595

Country of ref document: EP

Kind code of ref document: A1