TWI378389B - - Google Patents

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Publication number
TWI378389B
TWI378389B TW97141521A TW97141521A TWI378389B TW I378389 B TWI378389 B TW I378389B TW 97141521 A TW97141521 A TW 97141521A TW 97141521 A TW97141521 A TW 97141521A TW I378389 B TWI378389 B TW I378389B
Authority
TW
Taiwan
Prior art keywords
bar code
key
barcode
ciphertext
module
Prior art date
Application number
TW97141521A
Other languages
English (en)
Chinese (zh)
Other versions
TW201017558A (en
Original Assignee
Chunghwa Telecom Co Ltd
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 Chunghwa Telecom Co Ltd filed Critical Chunghwa Telecom Co Ltd
Priority to TW97141521A priority Critical patent/TW201017558A/zh
Publication of TW201017558A publication Critical patent/TW201017558A/zh
Application granted granted Critical
Publication of TWI378389B publication Critical patent/TWI378389B/zh

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  • Storage Device Security (AREA)
TW97141521A 2008-10-29 2008-10-29 Data encoding system using bar code for multiple-level authorization, and usage method thereof TW201017558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW97141521A TW201017558A (en) 2008-10-29 2008-10-29 Data encoding system using bar code for multiple-level authorization, and usage method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW97141521A TW201017558A (en) 2008-10-29 2008-10-29 Data encoding system using bar code for multiple-level authorization, and usage method thereof

Publications (2)

Publication Number Publication Date
TW201017558A TW201017558A (en) 2010-05-01
TWI378389B true TWI378389B (enExample) 2012-12-01

Family

ID=44830898

Family Applications (1)

Application Number Title Priority Date Filing Date
TW97141521A TW201017558A (en) 2008-10-29 2008-10-29 Data encoding system using bar code for multiple-level authorization, and usage method thereof

Country Status (1)

Country Link
TW (1) TW201017558A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI459299B (zh) * 2010-10-21 2014-11-01 Chunghwa Telecom Co Ltd Two - dimensional bar code codec method with multiple services

Also Published As

Publication number Publication date
TW201017558A (en) 2010-05-01

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MM4A Annulment or lapse of patent due to non-payment of fees