How to prove yourself: practical solutions to identification and signature problems
Proceedings on Advances in cryptology---CRYPTO '86
A digital signature scheme secure against adaptive chosen-message attacks
SIAM Journal on Computing - Special issue on cryptography
One-way functions are necessary and sufficient for secure signatures
STOC '90 Proceedings of the twenty-second annual ACM symposium on Theory of computing
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
Random oracles are practical: a paradigm for designing efficient protocols
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
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
Accountable-subgroup multisignatures: extended abstract
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
Forward-Secure Threshold Signature Schemes
CT-RSA 2001 Proceedings of the 2001 Conference on Topics in Cryptology: The Cryptographer's Track at RSA
A Forward-Secure Digital Signature Scheme
CRYPTO '99 Proceedings of the 19th Annual International Cryptology Conference on Advances in Cryptology
Forward-Secure Signatures with Optimal Signing and Verifying
CRYPTO '01 Proceedings of the 21st Annual International Cryptology Conference on Advances in Cryptology
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
Efficient Identification and Signatures for Smart Cards
CRYPTO '89 Proceedings of the 9th 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
A New Forward-Secure Digital Signature Scheme
ASIACRYPT '00 Proceedings of the 6th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Short Signatures from the Weil Pairing
ASIACRYPT '01 Proceedings of the 7th International Conference on the Theory and Application of Cryptology and Information Security: 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
FC '01 Proceedings of the 5th International Conference on Financial Cryptography
Strong Key-Insulated Signature Schemes
PKC '03 Proceedings of the 6th International Workshop on Theory and Practice in Public Key Cryptography: Public Key Cryptography
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
DIGITALIZED SIGNATURES AND PUBLIC-KEY FUNCTIONS AS INTRACTABLE AS FACTORIZATION
DIGITALIZED SIGNATURES AND PUBLIC-KEY FUNCTIONS AS INTRACTABLE AS FACTORIZATION
Breaking and repairing optimistic fair exchange from PODC 2003
Proceedings of the 3rd ACM workshop on Digital rights management
On the performance, feasibility, and use of forward-secure signatures
Proceedings of the 10th ACM conference on Computer and communications security
Efficiency improvements for signature schemes with tight security reductions
Proceedings of the 10th ACM conference on Computer and communications security
Proceedings of the 11th ACM conference on Computer and communications security
Forward-secure signatures with untrusted update
Proceedings of the 13th ACM conference on Computer and communications security
Multi-signatures in the plain public-Key model and a general forking lemma
Proceedings of the 13th ACM conference on Computer and communications security
The Power of Proofs-of-Possession: Securing Multiparty Signatures against Rogue-Key Attacks
EUROCRYPT '07 Proceedings of the 26th annual international conference on Advances in Cryptology
Multisignatures secure under the discrete logarithm assumption and a generalized forking lemma
Proceedings of the 15th ACM conference on Computer and communications security
Generalized Identity Based and Broadcast Encryption Schemes
ASIACRYPT '08 Proceedings of the 14th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Fine-grained forward-secure signature schemes without random oracles
Discrete Applied Mathematics - Special issue: Coding and cryptography
Security proofs for signature schemes
EUROCRYPT'96 Proceedings of the 15th annual international conference on Theory and application of cryptographic techniques
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
Forward-security in private-key cryptography
CT-RSA'03 Proceedings of the 2003 RSA conference on The cryptographers' track
Intrusion-resilient public-key encryption
CT-RSA'03 Proceedings of the 2003 RSA conference on The cryptographers' track
Efficient sequential aggregate signed data
EUROCRYPT'08 Proceedings of the theory and applications of cryptographic techniques 27th annual international conference on Advances in cryptology
Chosen-ciphertext security of multiple encryption
TCC'05 Proceedings of the Second international conference on Theory of Cryptography
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
Sequential aggregate signatures and multisignatures without random oracles
EUROCRYPT'06 Proceedings of the 24th annual international conference on The Theory and Applications of Cryptographic Techniques
Unrestricted aggregate signatures
ICALP'07 Proceedings of the 34th international conference on Automata, Languages and Programming
Fully forward-secure group signatures
Cryptography and Security
| Hi-index | 0.00 |
Forward-Secure Signatures (FSS) prevent forgeries for past time periods when an attacker obtains full access to the signer’s storage by evolving the private key in a one-way fashion. To simplify the integration of these primitives into standard security architectures, Boyen et al. [2006] recently introduced the concept of forward-secure signatures with untrusted updates where private keys are additionally protected by a second factor (derived from a password). Key updates can be made on encrypted version of signing keys so that passwords only come into play for signing messages and not at update time (since update is not user-driven). The scheme put forth by Boyen et al. relies on bilinear maps and does not require the random oracle. They also suggest the integration of untrusted updates in the Bellare-Miner forward-secure signature. Their work left open the problem of endowing other existing FSS systems with the same second factor protection, and a natural second question is whether the method can apply to other key-evolving paradigms. This article solves the first problem by showing an efficient generic construction that does not require to set a bound on the number of time periods at key generation. The article then extends the unprotected update model to other key-evolving primitives such as forward-secure public key encryption and key-insulated cryptosystems.