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Y. Zheng. Improved public key cryptosystems secure against chosen ciphertext attacks. Technical Report tr-94-1, 1994.

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Talking Securely - Mark Arnold   (Correct)

....channels. 2.4 Using Authentication To use the Talking Securely authentication process, a user must select one of the authentication options (see section 2.3) The algorithms used in the authentication process are shown in figure 2. 4 These algorithms for authentication can be found in [Zhe94] The general process of authentication involves message comparison. In the Talking Securely system, the basic message contains a 64 bit classical key (to be used if the security process has been selected) and some handshaking information. The basic message along with a combination of our private ....

Y. Zheng. Improved public key cryptosystems secure against chosen ciphertext attacks, February 1994.


The Analysis of Zheng-Seberry Scheme - Soldera, Seberry, Qu   Self-citation (Zheng)   (Correct)

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Y. Zheng, Improved public key cryptosystems secure against chosen ciphertext attacks, Technical Report 94-1, University of Wollongong, 1994. 11


Signcryption and Its Applications in Efficient Public Key Solutions - Zheng (1997)   (7 citations)  Self-citation (Zheng)   (Correct)

.... to be sent to Bob is defined as ( c = E k 1 (m) u = g x mod p, r = KH k 2 (m) where (1) x is chosen uniformly at random from [1; q 0 1] and (2) k 1 ; k 2 ) k = hash(y x b mod p) It turns out C kh is a slightly modified version of a scheme that has received special attention in [29, 3]. See also earlier work [33] Using a similar argument as that in [29, 3] we can show in the following that for C kh , it is computationally infeasible for an adaptive attacker to gain any partial information on m. 5.3 Non repudiation As discussed in Section 4, signcryption requires a ....

.... 2 (m) where (1) x is chosen uniformly at random from [1; q 0 1] and (2) k 1 ; k 2 ) k = hash(y x b mod p) It turns out C kh is a slightly modified version of a scheme that has received special attention in [29, 3] See also earlier work [33] Using a similar argument as that in [29, 3], we can show in the following that for C kh , it is computationally infeasible for an adaptive attacker to gain any partial information on m. 5.3 Non repudiation As discussed in Section 4, signcryption requires a repudiation settlement procedure different from the one for a digital signature ....

Zheng, Y.: Improved public key cryptosystems secure against chosen ciphertext attacks. Technical Report 94-1 University of Wollongong Australia January 1994.


Digital Signcryption or How to Achieve Cost(Signature &.. - Zheng (1997)   (9 citations)  Self-citation (Zheng)   (Correct)

....scheme (say SCS1) With the encryption scheme C kh , the ciphertext of a message m is defined as ( u = g x mod p, c = E k1 (m) r = KH k2 (m) where k 1 and k 2 are defined in the same way as in SCS1. C kh is a slightly modified version of a scheme that has received special attention in [23, 3] (see also earlier work [25] Now assume that there is an attacker for SCS1. Call this attacker ASCS1 . We show how A SCS1 can be translated into one for C kh , called ACkh . Note that for a message m, the input to ASCS1 includes q, p, g, y a = g xa mod p, y b = g x b mod p, u = g x mod p, ....

Zheng, Y.:. Improved public key cryptosystems secure against chosen ciphertext attacks. Technical Report 94-1 University of Wollongong Australia January 1994.


Authenticated Hybrid Encryption for Multiple Recipients - Alt (2006)   (Correct)

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Y. Zheng. Improved public key cryptosystems secure against chosen ciphertext attacks. Technical Report tr-94-1, 1994.

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