Trapdoor commitment schemes are widely used for adding valuable properties to ordinary signatures or enhancing the security of weakly secure signatures. In this letter, we propose a trapdoor commitment scheme based on RSA function, and prove its security under the hardness of the integer factoring. Our scheme is very efficient in computing a commitment. Especially, it requires only three multiplications for evaluating a commitment when e=3 is used as a public exponent of RSA function. Moreover, our scheme has two useful properties, key exposure freeness and strong trapdoor opening, which are useful for designing secure chameleon signature schemes and converting a weakly secure signature to a strongly secure signature, respectively.
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Copy
Taek-Young YOUN, Young-Ho PARK, Jongin LIM, "Efficient Trapdoor Commitment as Secure as Factoring with Useful Properties" in IEICE TRANSACTIONS on Information,
vol. E92-D, no. 12, pp. 2520-2523, December 2009, doi: 10.1587/transinf.E92.D.2520.
Abstract: Trapdoor commitment schemes are widely used for adding valuable properties to ordinary signatures or enhancing the security of weakly secure signatures. In this letter, we propose a trapdoor commitment scheme based on RSA function, and prove its security under the hardness of the integer factoring. Our scheme is very efficient in computing a commitment. Especially, it requires only three multiplications for evaluating a commitment when e=3 is used as a public exponent of RSA function. Moreover, our scheme has two useful properties, key exposure freeness and strong trapdoor opening, which are useful for designing secure chameleon signature schemes and converting a weakly secure signature to a strongly secure signature, respectively.
URL: https://global.ieice.org/en_transactions/information/10.1587/transinf.E92.D.2520/_p
Copy
@ARTICLE{e92-d_12_2520,
author={Taek-Young YOUN, Young-Ho PARK, Jongin LIM, },
journal={IEICE TRANSACTIONS on Information},
title={Efficient Trapdoor Commitment as Secure as Factoring with Useful Properties},
year={2009},
volume={E92-D},
number={12},
pages={2520-2523},
abstract={Trapdoor commitment schemes are widely used for adding valuable properties to ordinary signatures or enhancing the security of weakly secure signatures. In this letter, we propose a trapdoor commitment scheme based on RSA function, and prove its security under the hardness of the integer factoring. Our scheme is very efficient in computing a commitment. Especially, it requires only three multiplications for evaluating a commitment when e=3 is used as a public exponent of RSA function. Moreover, our scheme has two useful properties, key exposure freeness and strong trapdoor opening, which are useful for designing secure chameleon signature schemes and converting a weakly secure signature to a strongly secure signature, respectively.},
keywords={},
doi={10.1587/transinf.E92.D.2520},
ISSN={1745-1361},
month={December},}
Copy
TY - JOUR
TI - Efficient Trapdoor Commitment as Secure as Factoring with Useful Properties
T2 - IEICE TRANSACTIONS on Information
SP - 2520
EP - 2523
AU - Taek-Young YOUN
AU - Young-Ho PARK
AU - Jongin LIM
PY - 2009
DO - 10.1587/transinf.E92.D.2520
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E92-D
IS - 12
JA - IEICE TRANSACTIONS on Information
Y1 - December 2009
AB - Trapdoor commitment schemes are widely used for adding valuable properties to ordinary signatures or enhancing the security of weakly secure signatures. In this letter, we propose a trapdoor commitment scheme based on RSA function, and prove its security under the hardness of the integer factoring. Our scheme is very efficient in computing a commitment. Especially, it requires only three multiplications for evaluating a commitment when e=3 is used as a public exponent of RSA function. Moreover, our scheme has two useful properties, key exposure freeness and strong trapdoor opening, which are useful for designing secure chameleon signature schemes and converting a weakly secure signature to a strongly secure signature, respectively.
ER -