Identity-based cryptosystems and signature schemes
Proceedings of CRYPTO 84 on Advances in cryptology
An identity-based key-exchange protocol
EUROCRYPT '89 Proceedings of the workshop on the theory and application of cryptographic techniques on Advances in cryptology
Fast signature generation with a Fiat Shamir—like scheme
EUROCRYPT '90 Proceedings of the workshop on the theory and application of cryptographic techniques on Advances in cryptology
The official PGP user's guide
Simple forward-secure signatures from any signature scheme
Proceedings of the 7th ACM conference on Computer and communications security
Practical forward secure group signature schemes
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
Identity-Based Encryption from the Weil Pairing
SIAM Journal on Computing
Forward-Secure Threshold Signature Schemes
CT-RSA 2001 Proceedings of the 2001 Conference on Topics in Cryptology: The Cryptographer's Track at RSA
A Digital Signature Based on a Conventional Encryption Function
CRYPTO '87 A Conference on the Theory and Applications of Cryptographic Techniques on Advances in Cryptology
A "Paradoxical" Indentity-Based Signature Scheme Resulting from Zero-Knowledge
CRYPTO '88 Proceedings of the 8th Annual International Cryptology Conference on Advances in Cryptology
Key-Insulated Public Key Cryptosystems
EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
Efficient Generic Forward-Secure Signatures with an Unbounded Number Of Time Periods
EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
Toward Hierarchical Identity-Based Encryption
EUROCRYPT '02 Proceedings of the International Conference on the Theory and Applications of Cryptographic Techniques: Advances in Cryptology
Hierarchical ID-Based Cryptography
ASIACRYPT '02 Proceedings of the 8th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Strong Key-Insulated Signature Schemes
PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
SiBIR: Signer-Base Intrusion-Resilient Signatures
CRYPTO '02 Proceedings of the 22nd Annual International Cryptology Conference on Advances in Cryptology
On the performance, feasibility, and use of forward-secure signatures
Proceedings of the 10th ACM conference on Computer and communications security
A forward-secure public-key encryption scheme
EUROCRYPT'03 Proceedings of the 22nd international conference on Theory and applications of cryptographic techniques
Forward-secure signatures with fast key update
SCN'02 Proceedings of the 3rd international conference on Security in communication networks
Efficient Selective Identity-Based Encryption Without Random Oracles
Journal of Cryptology
Intrusion-Resilient secure channels
ACNS'05 Proceedings of the Third international conference on Applied Cryptography and Network Security
Efficient identity-based encryption without random oracles
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Hierarchical identity based encryption with constant size ciphertext
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Forward-secure signatures in untrusted update environments: efficient and generic constructions
Proceedings of the 14th ACM conference on Computer and communications security
Practical forward secure sequential aggregate signatures
Proceedings of the 2008 ACM symposium on Information, computer and communications security
Efficient Generic Forward-Secure Signatures and Proxy Signatures
EuroPKI '08 Proceedings of the 5th European PKI workshop on Public Key Infrastructure: Theory and Practice
Proxy Re-signatures in the Standard Model
ISC '08 Proceedings of the 11th international conference on Information Security
Construction of Yet Another Forward Secure Signature Scheme Using Bilinear Maps
ProvSec '08 Proceedings of the 2nd International Conference on Provable Security
Cryptanalysis of Vo-Kim Forward Secure Signature in ICISC 2005
ProvSec '08 Proceedings of the 2nd International Conference on Provable Security
Key Evolution Systems in Untrusted Update Environments
Information Security and Cryptology
Strong mobile device protection from loss and capture
Proceedings of the 2nd International Conference on PErvasive Technologies Related to Assistive Environments
Dynamic fully forward-secure group signatures
ASIACCS '10 Proceedings of the 5th ACM Symposium on Information, Computer and Communications Security
Key Evolution Systems in Untrusted Update Environments
ACM Transactions on Information and System Security (TISSEC)
Forward-secure identity-based signature: Security notions and construction
Information Sciences: an International Journal
The ForwardDiffsig scheme for multicast authentication
IEEE/ACM Transactions on Networking (TON)
Efficient intrusion-resilient signatures without random oracles
Inscrypt'06 Proceedings of the Second SKLOIS conference on Information Security and Cryptology
Fully forward-secure group signatures
Cryptography and Security
Forward-Secure Identity-Based Public-Key Encryption without Random Oracles
Fundamenta Informaticae
Practical time capsule signatures in the standard model from bilinear maps
Pairing'07 Proceedings of the First international conference on Pairing-Based Cryptography
Adaptively secure forward-secure non-interactive threshold cryptosystems
Inscrypt'11 Proceedings of the 7th international conference on Information Security and Cryptology
Forward secure attribute-based signatures
ICICS'12 Proceedings of the 14th international conference on Information and Communications Security
A forward-secure certificate-based signature scheme in the standard model
CSS'12 Proceedings of the 4th international conference on Cyberspace Safety and Security
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In most forward-secure signature constructions, a program that updates a user's private signing key must have full access to the private key. Unfortunately, these schemes are incompatible with several security architectures including Gnu Privacy Guard (GPG) and S/MIME, where the private key is encrypted under a user password as a "second factor" of security, in case the private key storage is corrupted, but the password is not.We introduce the concept of forward-secure signatures with untrusted update, where the key update can be performed on an encrypted version of the key. Forward secure signatures with untrusted update allow us to add forward security to signatures, while still keeping passwords as a second factor of security. We provide a construction that has performance characteristics comparable with the best existing forward-secure signatures. In addition, we describe how to modify the Bellare-Miner forward secure signature scheme to achieve untrusted update.