ICISC '01 Proceedings of the 4th International Conference Seoul on Information Security and Cryptology
ESORICS'05 Proceedings of the 10th European conference on Research in Computer Security
Digitally signed document sanitizing scheme based on bilinear maps
ASIACCS '06 Proceedings of the 2006 ACM Symposium on Information, computer and communications security
Efficient signature schemes supporting redaction, pseudonymization, and data deidentification
Proceedings of the 2008 ACM symposium on Information, computer and communications security
Sanitizable Signatures Revisited
CANS '08 Proceedings of the 7th International Conference on Cryptology and Network Security
Invisibly Sanitizable Digital Signature Scheme
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Sanitizable and Deletable Signature
Information Security Applications
Security of Sanitizable Signatures Revisited
Irvine Proceedings of the 12th International Conference on Practice and Theory in Public Key Cryptography: PKC '09
Short Redactable Signatures Using Random Trees
CT-RSA '09 Proceedings of the The Cryptographers' Track at the RSA Conference 2009 on Topics in Cryptology
A Storage Efficient Redactable Signature in the Standard Model
ISC '09 Proceedings of the 12th International Conference on Information Security
A sanitizable signature scheme with aggregation
ISPEC'07 Proceedings of the 3rd international conference on Information security practice and experience
Trapdoor sanitizable signatures and their application to content protection
ACNS'08 Proceedings of the 6th international conference on Applied cryptography and network security
Trapdoor sanitizable signatures made easy
ACNS'10 Proceedings of the 8th international conference on Applied cryptography and network security
Sanitizable sgnatures with srong tansparency in the sandard model
Inscrypt'09 Proceedings of the 5th international conference on Information security and cryptology
Hierarchical identity-based chameleon hash and its applications
ACNS'11 Proceedings of the 9th international conference on Applied cryptography and network security
Fully-secure and practical sanitizable signatures
Inscrypt'10 Proceedings of the 6th international conference on Information security and cryptology
Extended sanitizable signatures
ICISC'06 Proceedings of the 9th international conference on Information Security and Cryptology
An image sanitizing scheme using digital watermarking
ICICS'09 Proceedings of the 11th international conference on Information and Communications Security
A short redactable signature scheme using pairing
Security and Communication Networks
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In e-government or e-tax payment systems, appropriate alterations on digitally signed documents are required to hide personal information, namely privacy. Standard digital signature schemes do not allow such alternations on the signed documents since there is no means to distinguish appropriate alternations from inappropriate forgeries. The sanitizable signature scheme is a possible solution for such systems in which sanitizings of partial information are possible, after a signature is signed on the original (unsanitized) document. However, in previously proposed schemes, since sanitizers are anonymous, verifiers cannot identify sanitizers, and thus dishonest sanitizings are possible. This paper proposes a new sanitizable signature scheme “PIATS” in which partial information can be sanitized. Moreover, verifiers can identify sanitizers and thus dishonest sanitizings are eliminated.