Method and system for adding dynamic labels to a file and encrypting the file

• US 9,619,665 B2
• Filed: 07/22/2014
• Issued: 04/11/2017
• Est. Priority Date: 07/22/2014
• Status: Expired due to Fees

• Current Assignee: Cheng-Han Ko
• Original Assignee: Cheng-Han Ko
• Inventors: Ko, Cheng-Han
• Primary Examiner(s): DYER, ANDREW R
• Application Number:
  US14/338,233
• Publication Number:
  US 20160026827A1
• Time in Patent Office: 994 Days
• Field of Search: 715234
• CPC Class Codes: G06F 16/116 Details of conversion of file system types or formats
• CPC Class Codes: G06F 21/6209 to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself

Abstract

The present invention relates to a method and system for adding dynamic labels to a file and encrypting the file, after having the file be converted and added at least one label related to information about the file and user, the file is encrypted for reading after decryption. First, transferring at least one file by a file upload unit; converting the file from the file upload unit into PDF format by a first file conversion unit, and adding at least one label corresponding to information about the file and its users via a label-adding unit; encrypting the file from the first file conversion unit by an encryption unit to form an encrypted file, and then generating a decryption key corresponding to the encrypted file; saving the encrypted file and the decryption key respectively in a first storage unit and a second storage unit.

Claims

1. A method for adding dynamic labels to a file and encrypting the file, comprising steps of:

Step A;

transferring at least one file;

Step B;

converting the transferred file into PDF format and adding at least one label containing information about the file and its users;

wherein the label is a watermark, QR code, or a combination of watermark and QR code;

Step C;

encrypting the file to form an encrypted file, and then generating a decryption key corresponding to the encrypted file; and

Step D;

saving the encrypted file and the decryption key respectively in a first storage unit and a second storage unit;

wherein the step B of adding the watermark further includes steps of;

B1;

converting the transferred file into PDF format to form a first file;

B2;

reading a watermark setting;

B3;

detecting the size of the first file and having the X-axis, Y-axis, the watermark font, and image of the first file zoomed in/out proportionally to a pre-determined size;

B4;

dividing the contents of the first file into a plurality of layers and analyzing the pattern dithering of each layer;

B5;

setting a X-axis and a Y-axis for each of the layers;

B6;

setting font type, font size and angle of the watermark to be added;

B7;

hollowing the font of the watermark out;

B8;

adjusting the brightness, transparency and resolution of the layers;

B9;

combining the layers together to form a second file in PDF format;

B10;

transferring the second file, and

wherein the PDF format in Step B is PDF ISO-32000-2;

2015, PDF 150-32000-1;

2008, ISO-32000-15, ISO 15930-1;

2001, ISO 15930-3;

2002;

Extend to PDF / X, PDF / A, PDF / E, PDF / UA, PDF / VT'"'"'s;

following combination that in accordance with PDF standards include;

PDF/X, PDF/A, PDF/E, PDF/VT, or PDF/UA.

2. The method as claimed in claim 1, further comprising a step B(1) between the step B and step C:

B(1);

converting the file in PDF format with the label to an image file;

wherein, in step C, the file in PDF format and the image file are respectively encrypted, and the two decryption keys corresponding to the two encrypted files are respectively generated.

3. The method as claimed in claim 1, wherein the watermark and the QR code respectively store at least, one of following instant dynamic information:

dynamic parameters of quantum random number, IP address, user address, UUID code, CPU code, device code, finger print, company name, department name, login-in time, upload timestamps, download time stamps, download number stamps, open timestamps, feature code, certification code, registration code, checking point code, and authorization code.

4. The method as claimed in claim 1, wherein the encryption in step C uses at least one of the methods including AES-ECB (key length:

128, 192,

     256), CBC (key length;

128, 192,

     256), CTR (key length;

128, 192,

     256), CCM (key length;

128, 192,

     256), OFB (key length;

128, 192,

     256), GCM (key length;

128, 192,

     256), CFB 1(key length;

128, 192,

     256), CFB 8(key length;

128, 192,

     256), CFB 128(key length;

128, 192,

     256), RC4 128-bit, RC4 40-bit,DES,TDES and Threefish.

5. The method as claimed in claim 1, further comprising a step C1 between the step C and step D:

C1;

compressing the encrypted file;

wherein, in step D, the encrypted and compressed file and the decryption key are saved respectively in the first storage unit and the second storage unit.

6. The method as claimed in claim 1, wherein in the step B and step C, a resources division is optimized by one of the following procedures:

Procedure 1;

having a application layer of code directly call a system layer of codes by executing an external order of code, and distributing a recourse of single core of the CPU effectively by multi-threading channel function coordinating with multitasking microinstruction on processor of the hardware, multi-core microinstruction, encryption microinstruction or decryption microinstruction; and

Procedure 2;

setting a virtual machine unit in at least one of the first file conversion unit, the second file conversion unit and the encryption unit, wherein the virtual machine unit executes parallel computing technology, clustered hosting technology, CUDA parallel computing, or parallel computing structure technology.

7. A system for adding dynamic labels to a file and providing encryption in the file, comprising a processor being programmed to function as:

a file uploading unit for uploading one file;

a first file conversion unit, connected with the file uploading unit, for converting the file from the file uploading unit into PDF format;

a label-adding unit, for adding to the file at least one label containing information about the file and users;

wherein the label is either a watermark or QR code, or a combination of watermark and QR code;

wherein the label-adding unit further comprises;

a size-detecting unit for detecting the size of the transferred file and zooming in/out proportionally the X-axis, Y-axis, the watermark font, and image of the file to pre-determined size;

an image-dividing unit for dividing the contents of the file into a plurality of layers and analyzing pattern dithering of the layers;

an axis-fixing unit for setting X-axis and Y-axis to each of the layers;

a font-setting unit for setting font type, font size and angle of the watermark;

a font-hollowing unit for hollowing the font of the watermark out;

an adjusting unit for adjusting the brightness, transparency and resolution of the layers;

a layer-combining unit for combining each of the layers together;

an encryption unit, for encrypting the file from the label-adding unit, and generate a decryption key corresponding to an encrypted file; and

a first storage unit and a second storage unit for respectively saving the encrypted file and the decryption key from the encryption unit,

wherein the PDF format of the converted file in the first file conversion unit is PDF ISO-32000-2;

2015, PDF ISO-32000-1;

2008, ISO-32000-15, ISO 15930-1;

2001, ISO 15930-3;

2002;

Extend to PDF / X, PDF / A, PDF / E, PDF / UA, PDF / VT'"'"'s;

following combination that in accordance with PDF standards include;

PDF/X, PDF/A, PDF/E, PDF/VT, PDF/UA.

8. The system as claimed in claim 7, wherein the processor is programmed to function as a second file conversion unit for converting the file into an image.

9. The system as claimed in claim 7, wherein the watermark and the QR code respectively store at least one of following instant dynamic information:

dynamic parameters of quantum random number, IP address, user address, UUID code, CPU code, device code, finger print, company name, department name, login in time, upload timestamps, download time stamps, download number stamps, open timestamps, feature code, certification code, registration code, checking point code and authorization code.

10. The system as claimed in claim 7, wherein the encryption of the encryption unit is by the way of at least one of the AES- ECB (key length:

128, 192,

     256), CBC (key length;

128, 192,

     256), CTR (key length;

128, 192,

     256), CCM (key length;

128, 192,

     256), OFB (key length;

128, 192,

     256), GCM (key length;

128, 192,

     256), CFB 1(key length;

128 , 192 ,

     256), CFB 8(key length;

128, 192,

     256), CFB 128(key length;

128, 192,

     256), RC4 128-bit, RC4 40-bit,DES,TDES and Threefish.

11. The system as claimed in claim 7, wherein the processor is programmed to function as a compression unit for compressing the encrypted file.

12. The system as claimed in claim 7, wherein an optimal resources division for the first file conversion unit, the second file conversion and the encryption unit is accomplished by at least one of the following procedures, comprising:

Procedure 1;

having an application layer of code directly call a system layer of code by executing an external order of code, and distributing a recourse of single core of the CPU effectively by multi-threading channel function coordinating with multitasking microinstruction on processor of the hardware, multi-core microinstruction, encryption microinstruction or decryption microinstruction; and

Procedure 2;

setting a virtual machine unit in at least one of the first file conversion unit, the second file conversion unit and the encryption unit, wherein the virtual machine unit executes parallel computing technology, clustered hosting technology, CUDA parallel computing, or parallel computing structure technology.