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A comprehensive review of visual cryptography for enhancing high-security applications.

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Title: A comprehensive review of visual cryptography for enhancing high-security applications.
Authors: Bachiphale, Pramod M.1 (AUTHOR) pbachiphale@gmail.com, Zulpe, Nitish S.2 (AUTHOR) nitishzulpe@gmail.com
Source: Multimedia Tools & Applications. Aug2025, Vol. 84 Issue 26, p31023-31045. 23p.
Subjects: Visual cryptography, Online banking, Information technology security, Data privacy, Data security failures, Data encryption
Abstract: In today's digital era, safeguarding sensitive information is critical. Visual cryptography offers a promising solution for enhancing security in online banking, web account management, and online shopping. This paper reviews visual cryptography and its potential to address high-security challenges. Visual cryptography works by dividing a secret image into shares, which can be decrypted by stacking them together. Various schemes have been developed to meet diverse security needs. The review begins with an overview of visual cryptography and its applications, followed by an in-depth analysis of different schemes and their characteristics. A novel method for managing transaction keys in online banking is introduced, where the key is embedded in an image and split into two parts: one stored in the bank's database and the other held by the client or a photo server. During transactions, the client provides their share, which is combined with the bank's share to retrieve the original key. This method ensures key validity and client verification. Finally, the paper discusses the challenges and limitations of visual cryptography and suggests future research directions, concluding that visual cryptography is a robust technique for addressing security issues in various applications. [ABSTRACT FROM AUTHOR]
Copyright of Multimedia Tools & Applications is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="DE" term="%22Visual+cryptography%22">Visual cryptography</searchLink><br /><searchLink fieldCode="DE" term="%22Online+banking%22">Online banking</searchLink><br /><searchLink fieldCode="DE" term="%22Information+technology+security%22">Information technology security</searchLink><br /><searchLink fieldCode="DE" term="%22Data+privacy%22">Data privacy</searchLink><br /><searchLink fieldCode="DE" term="%22Data+security+failures%22">Data security failures</searchLink><br /><searchLink fieldCode="DE" term="%22Data+encryption%22">Data encryption</searchLink>
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  Data: In today's digital era, safeguarding sensitive information is critical. Visual cryptography offers a promising solution for enhancing security in online banking, web account management, and online shopping. This paper reviews visual cryptography and its potential to address high-security challenges. Visual cryptography works by dividing a secret image into shares, which can be decrypted by stacking them together. Various schemes have been developed to meet diverse security needs. The review begins with an overview of visual cryptography and its applications, followed by an in-depth analysis of different schemes and their characteristics. A novel method for managing transaction keys in online banking is introduced, where the key is embedded in an image and split into two parts: one stored in the bank's database and the other held by the client or a photo server. During transactions, the client provides their share, which is combined with the bank's share to retrieve the original key. This method ensures key validity and client verification. Finally, the paper discusses the challenges and limitations of visual cryptography and suggests future research directions, concluding that visual cryptography is a robust technique for addressing security issues in various applications. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Multimedia Tools & Applications is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: Aug2025
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