Authenticated encryption schemes with message linkages for message flows

An Improved Authenticated Encryption Scheme

“…We compare the security and performance of the improved scheme with those of the Tseng-Jan-Chien scheme [1] and Hwang et al's scheme [2] in Table 1. For convenience, the following notation is used to analyze the performance evaluation of the improved schemes: T e is the time for executing a modular exponentiation operation; T m is the time for executing a modular multiplication operation; T i is the time for executing a modular inverse operation; T h is the time for executing a one-way hash function; |x| is the bit-length of an integer x.…”

“…From Table 1, we know that both Tseng-Jan-Chien scheme [1] and Hwang et al's scheme [2] do not satisfy the unforgeability and non-repudiation. Our scheme satisfy the unforgeability, confidentiality and non-repudiation.…”

Cryptanalysis of Hwang-Lo-Hsiao-Chu Authenticated Encryption Schemes

“…Similar to Tseng et al [12], the improved schemes proposed by Hwang et al consist of three phases: the system initialization phase, the signing phase, and the message recovery phase. Here, we only focus on the basic scheme but our attack also applies to the generalized scheme.…”

“…Tseng et al [12] proposed two efficient authenticated encryption schemes with message linkages. The first scheme is a basic one that requires the recipient (verifier) to wait until she receives all of the signature blocks before she can recover any of the received message blocks.…”

A secure e-auction scheme based on group signatures

“…Authenticated encryption is the digital signature with a message recovery function. It can combine the functions of digital signature and encryption (Lee and Chang 1995;Tseng et al 2003). The signer may generate the signature for a message and only the specified receiver can recover and verify the message.…”