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How barcode or QR-code is resistant to change stored data?
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Assume we want to protect a document against manipulating and forging. So, we encode some sensitive information of the document and store it in a QR-code inserted in the document.
Can we be sure that an attacker is not able to change and modify the stored data in the QR-code? And if it is possible to modify it, how is it difficult for an attacker to do it? In other words, how a QR-code is secure?
physical qr-code barcode
asked 4 hours ago
sas
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up vote
1
down vote
favorite
Assume we want to protect a document against manipulating and forging. So, we encode some sensitive information of the document and store it in a QR-code inserted in the document.
Can we be sure that an attacker is not able to change and modify the stored data in the QR-code? And if it is possible to modify it, how is it difficult for an attacker to do it? In other words, how a QR-code is secure?
physical qr-code barcode
asked 4 hours ago
sas
1083
New contributor
sas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
Assume we want to protect a document against manipulating and forging. So, we encode some sensitive information of the document and store it in a QR-code inserted in the document.
Can we be sure that an attacker is not able to change and modify the stored data in the QR-code? And if it is possible to modify it, how is it difficult for an attacker to do it? In other words, how a QR-code is secure?
physical qr-code barcode
asked 4 hours ago
sas
1083
New contributor
sas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Assume we want to protect a document against manipulating and forging. So, we encode some sensitive information of the document and store it in a QR-code inserted in the document.
Can we be sure that an attacker is not able to change and modify the stored data in the QR-code? And if it is possible to modify it, how is it difficult for an attacker to do it? In other words, how a QR-code is secure?
physical qr-code barcode
physical qr-code barcode
asked 4 hours ago
sas
1083
New contributor
sas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
sas
1083
New contributor
sas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
sas
1083
New contributor
sas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 4 hours ago
sas
1083
asked 4 hours ago
sas
1083
1083
New contributor
sas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
sas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
sas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |Â
add a comment |Â
1 Answer
1
active
oldest
votes
up vote
3
down vote
accepted
... how a QR-code is secure?
Data in a QR code are kind of protected against accidental damage by having some error correction but they are not protected against deliberate manipulation. Also, an attacker might completely replace the QR code in the document with a different one.
answered 4 hours ago
Steffen Ullrich
106k10176244
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
accepted
... how a QR-code is secure?
Data in a QR code are kind of protected against accidental damage by having some error correction but they are not protected against deliberate manipulation. Also, an attacker might completely replace the QR code in the document with a different one.
answered 4 hours ago
Steffen Ullrich
106k10176244
add a comment |Â
up vote
3
down vote
accepted
... how a QR-code is secure?
Data in a QR code are kind of protected against accidental damage by having some error correction but they are not protected against deliberate manipulation. Also, an attacker might completely replace the QR code in the document with a different one.
answered 4 hours ago
Steffen Ullrich
106k10176244
add a comment |Â
up vote
3
down vote
accepted
up vote
3
down vote
accepted
... how a QR-code is secure?
Data in a QR code are kind of protected against accidental damage by having some error correction but they are not protected against deliberate manipulation. Also, an attacker might completely replace the QR code in the document with a different one.
answered 4 hours ago
Steffen Ullrich
106k10176244
... how a QR-code is secure?
Data in a QR code are kind of protected against accidental damage by having some error correction but they are not protected against deliberate manipulation. Also, an attacker might completely replace the QR code in the document with a different one.
answered 4 hours ago
Steffen Ullrich
106k10176244
answered 4 hours ago
Steffen Ullrich
106k10176244
answered 4 hours ago
Steffen Ullrich
106k10176244
answered 4 hours ago
Steffen Ullrich
106k10176244
106k10176244
add a comment |Â
add a comment |Â
sas is a new contributor. Be nice, and check out our Code of Conduct.
sas is a new contributor. Be nice, and check out our Code of Conduct.
sas is a new contributor. Be nice, and check out our Code of Conduct.
sas is a new contributor. Be nice, and check out our Code of Conduct.
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