SECURE FILE WRAPPER FOR TIFF IMAGES
Encrypted content may be stored in a file wrapper with unencrypted content that provides information regarding the encrypted content. The file wrapper may be stored around the encrypted content or may be stored in front or behind the encrypted content. The unencrypted content may indicate, for example, that additional content in the file is encrypted. A TIFF-formatted file may be used to store the two portions of content. A TIFF file structure may have content stored in a plurality of images. The unencrypted content may be stored in a first image of a TIFF file. The encrypted content may be stored in a second image, third image, and/or additional images of the TIFF file.
1 . A method for processing a file on an information handling system, comprising:
reading a first portion of the file, wherein the first portion is unencrypted;
determining, based on the first portion of the file, that a second portion of the file is encrypted; and
reading the second portion of the file through a virtual file system access path different from an access path used to perform the step of reading the first portion of the file, wherein the virtual file system decrypts the second portion of the file.
2 . The method of claim 1 , wherein information in the first portion of the file comprises an image, and wherein the second portion of the file comprises a document.
3 . The method of claim 1 , further comprising executing an application to display the second portion of the file, wherein the application used to display the second portion of the file is selected based, at least in part, on information in the first portion of the file.
4 . The method of claim 3 , wherein the application comprises a document editor, and wherein the information in the first portion of the file indicates that the second portion of the file comprises a document file.
5 . The method of claim 1 , wherein the file comprises a TIFF-formatted file comprising a plurality of images, and wherein the first portion of the file comprises an immediate first image of the plurality of images of the TIFF formatted file.
6 . The method of claim 5 , further comprising generating a preview of the TIFF-formatted file based on the first image.
7 . The method of claim 5 , wherein the second portion of the file comprises a second image of the plurality of images, and wherein the second image comprises a custom block type defined in the TIFF formatted file.
8 . An information handling system, comprising:
a memory; and
a processor coupled to the memory, wherein the processor is configured to perform steps comprising:
reading a first portion of the file, wherein the first portion is unencrypted;
determining, based on the first portion of the file, that a second portion of the file is encrypted; and
reading the second portion of the file through a virtual file system access path different from an access path used to perform the step of reading the first portion of the file, wherein the virtual file system decrypts the second portion of the file.
9 . The information handling system of claim 8 , wherein information in the first portion of the file comprises an image, and wherein the second portion of the file comprises a document.
10 . The information handling system of claim 8 , wherein the processor is further configured to perform steps comprising executing an application to display the second portion of the file, wherein the application used to display the second portion of the file is selected based, at least in part, on information in the first portion of the file.
11 . The information handling system of claim 10 , wherein the application comprises a document editor, and wherein the information in the first portion of the file indicates that the second portion of the file comprises a document file.
12 . The information handling system of claim 8 , wherein the file comprises a TIFF-formatted file comprising a plurality of images, and wherein the first portion of the file comprises an immediate first image of the plurality of images of the TIFF formatted file.
13 . The information handling system of claim 12 , wherein the processor is further configured to perform steps comprising generating a preview of the TIFF-formatted file based on the first image.
14 . The information handling system of claim 12 , wherein the second portion of the file comprises a second image of the plurality of images, and wherein the second image comprises a custom block type defined in the TIFF formatted file.
15 . A computer program product, comprising:
a non-transitory computer readable medium comprising code to perform steps comprising:
reading a first portion of the file, wherein the first portion is unencrypted;
determining, based on the first portion of the file, that a second portion of the file is encrypted; and
reading the second portion of the file through a virtual file system access path different from an access path used to perform the step of reading the first portion of the file, wherein the virtual file system decrypts the second portion of the file.
16 . The computer program product of claim 15 , wherein information in the first portion of the file comprises an image, and wherein the second portion of the file comprises a document.
17 . The computer program product of claim 15 , wherein the medium further comprises code to perform steps comprising executing an application to display the second portion of the file, wherein the application used to display the second portion of the file is selected based, at least in part, on information in the first portion of the file.
18 . The computer program product of claim 15 , wherein the file comprises a TIFF-formatted file comprising a plurality of images, and wherein the first portion of the file comprises an immediate first image of the plurality of images of the TIFF formatted file.
19 . The computer program product of claim 18 , wherein the medium further comprises code to perform steps comprising generating a preview of the TIFF-formatted file based on the first image.
20 . The computer program product of claim 18 , wherein the second portion of the file comprises a second image of the plurality of images, and wherein the second image comprises a custom block type defined in the TIFF formatted file.