Message Recovery for Signature Schemes Based on the Discrete Logarithm Problem
Designs, Codes and Cryptography - Special issue dedicated to Gustavus J. Simmons
Handbook of Applied Cryptography
Handbook of Applied Cryptography
On the security of a digital signature with message recovery using self-certified public key
AMCOS'05 Proceedings of the 4th WSEAS International Conference on Applied Mathematics and Computer Science
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
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In 2005, Chang et al. proposed a digital signature scheme with message recovery using self-certified public keys without trustworthy system authority. The current paper demonstrates that Chang et al.’s authenticated encryption scheme (CCH-AEDSMR) is vulnerable to the known plaintext-ciphertext attack in that the attacker can easily recover all messages from the signature that sent between the signer and the specified receiver. We propose an improvement to the scheme in order to overcome this weakness.