| X. Lai and J. Massey, "A Proposal for a New Block Encryption Standard", in Advances in Cryptology - EUROCRYPT '90 Proceedings, Springer-Verlag, 1991, pp. 389-404. |
....scheme that does not use a session key. 3.1.1 Authentication with Symmetric Encryption A symmetric encryption scheme is one in which the same key is used for both encryption and decryption. There are numerous symmetric encryption schemes to choose from with varying degrees of strength [oS77, LM91, Miy89]. The notation we use to denote the encryption of a message M with key K is fM g K . A commonly used protocol for key exchange using symmetric encryption is the Needham Schroeder protocol given in Figure 3.2. The element T denotes the current time and is used to prevent replay attacks. While this ....
X. Lai and J.L. Massey. A Proposal for a New Block Encryption Standard. In Advances in Cryptology --- Eurocrypt '90, pages 389--404, Springer-Verlag, Berlin, 1991.
....for cryptographic algorithms can be for example the key, the underlying finite field, the coe#cient used, and so on. Generally speaking, the more specific an algorithm is implemented the more e#cient it can become. An e#cient parameter specific implementation of the symmetric cipher IDEA [LM90,LMM91] was presented in [TG99] The general modular multiplication in IDEA requires 16 partial multiplications and only eight assuming a fixed key. Another example taken from asymmetric cryptography is the arithmetic architectures for Galois fields. Squaring in GF (2 m ) takes m 2 cycles with a ....
X. Lai and J. Massey. A proposal for a new block encryption standard. In Advances in Cryptology --- EUROCRYPT '90, pages 389--404, Berlin, Germany, May 1990. Springer-Verlag. LNCS 473.
....Another distinction is made between stream ciphers and block ciphers. Whilst a stream cipher encrypts one character at a time with a timevarying transformation, a block cipher encrypts a group of characters using a fix, but more complex function. Some well known block ciphers are DES [11] IDEA [23] and AES (Rijndael) 1] In GSMtelephones a stream cipher called A5 [5] is used. The strength of a cipher is measured by the amount of work needed to perform certain attacks. It is usually assumed that an attacker knows everything about a cipher system except for the key. In a ciphertext only ....
X. Lai and J. L. Massey. A proposal for a new block encryption standard. In Advances in Cryptology - EUROCRYPT '90, volume 473 of Lecture Notes in Computer Science, pages 389--404, 1990.
....text as complex as possible. Complex combinations of transposions and substitutions are repeatedly transforming the data under control of the key. As an example of a shared key cryptosystem, what follows is a presentation of IDEA (see below) much of its fame stems from it being used in PGP [82, 6, 149]. It is a block cipher, encrypting 64 bit blocks of data with a 128 bit key. The same algorithm is used for both encryption and decryption. First, the key is used to generate 56 sub keys. A block of data is split into four 16 bit sub blocks. There are eight identical rounds. In each round, each ....
LAI, X., AND MASSEY, J. L. A proposal for a new block encryption standard. In Proceedings of Advances in Cryptology---Eurocrypt'90 (1991), I. Damgrd, Ed., vol. 473 of Lecture Notes in Computer Science, Springer Verlag, pp. 389--404.
....[150] Figure 2.3 provides an overview of DES and Figure 2.4 details the DES round function. I Plaintext , o II =R5 I Figure 2.3: DES block diagram [125] L i S Box Substitution I P Box Permutation Figure 2. 4: DES round function [125] IDEA began as the Proposed Encryption Standard (PES) [88] and evolved into its final form [89] due to modifications required to strengthen the cipher against differential cryptanalysis attacks [24] IDEA is used in many commercial applications, such as Pretty Good Privacy (PGP) Like DES, IDEA operates across 64 bit blocks. However, while DES requires a ....
X. Lai and J. Massey. A Proposal for a New Block Encryption Standard. In Ivan B. Damg&rd, editor, Advances in Cryptology -- EUROCRYPT '90, volume LNCS 473, pages 389-404, Berlin, Germany, May 1990. Springer-Verlag.
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X. Lai and J. Massey, "A Proposal for a New Block Encryption Standard", in Advances in Cryptology - EUROCRYPT '90 Proceedings, Springer-Verlag, 1991, pp. 389-404.
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X. Lai and J.L. Massey, \A Proposal for a New Block Encryption Standard," in Advances in Cryptology-Eurocrypt'90. 1991, pp. 389-404, Springer Verlag.
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X. Lai and J. Massey, "A Proposal for a New Block Encryption Standard", in Advances in Cryptology - EUROCRYPT '90 Proceedings, Springer-Verlag, 1991, pp. 389-404.
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J. L. Massey X. Lai. A proposal for a new block encryption standard. pages 389--404. SpringerVeralg, 1991. 22
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X. Lai and J. Massey, \A proposal for a new block encryption standard," Advances in Cryptology - EUROCRYPT '90, Lecture Notes in Computer Science, vol. 473, pp. 389-404, 1991.
No context found.
X. Lai and J. Massey, "A Proposal for a New Block Encryption Standard", in Advances in Cryptology - EUROCRYPT '90 Proceedings, Springer-Verlag, 1991, pp. 389-404.
No context found.
X. Lai and J. L. Massey. A proposal for a new block encryption standard. In Ivan B. Damgard, editor, Advances in Cryptology - EuroCrypt '90, pages 389--404, Berlin, 1990. Springer-Verlag. Lecture Notes in Computer Science Volume 473.
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X. Lai and J. Massey. A proposal for a new block encryption standard. In Advances in Cryptography --- EUROCRYPT '90, pages 389--404. Springer-Verlag, 1990.
No context found.
X. Lai and J. Massey. A proposal for a new block encryption standard. In Advances in Cryptography --- EUROCRYPT '90, pages 389--404. Springer-Verlag, 1990.
No context found.
X. Lai and J. L. Massey. A proposal for a new block encryption standard. In I. B. Damgard, editor, Advances in Cryptology - EUROCRYPT'90, Lecture Notes in Computer Science, vol. 473, pp. 389-404, Springer-Verlag, Berlin, New York, Tokyo, 1991.
No context found.
X. Lai, J.L. Massey, \A Proposal for a New Block Encryption Standard," Advances in Cryptology|EUROCRYPT '90 Proceedings, Springer-Verlag, pp. 389-404.
No context found.
X. Lai and J. Massey, "A Proposal for a New Block Encryption Standard", in Advances in Cryptology - EUROCRYPT '90 Proceedings, Springer-Verlag, 1991, pp. 389-404.
No context found.
X. Lai and J. Massey. A proposal for a new block encryption standard. In Advances in Cryptology -- EUROCRYPT 90, pages 389--404, 1990.
No context found.
X. Lai and J. L. Massey, "A proposal for a new block encryption standard," in Proceedings of Eurocrypt'90 (I. B. Damgard, ed.), no. 473 in Lecture Notes in Computer Science, pp. 389--404, Springer-Verlag, 1990.
No context found.
X. Lai and J. Massey, "A Proposal for a New Block Encryption Standard", in Advances in Cryptology - EUROCRYPT '90 Proceedings, Springer-Verlag, 1991, pp. 389-404.
No context found.
Xuejia Lai, James L. Massey, A Proposal for a New Block Encryption Standard, EUROCRYPT'90, pp. 389--404, 1990.
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X. Lai, J. Massey, "A Proposal for a New Block Encryption Standard." EUROCRYPT '90, 1990.
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Lai, X. and Massey, J. (1991). A proposal for a new block encryption standard. In Advances in Cryptography - CRYPTO'90 Proceedings, pages 389--404, Springer-Verlag.
No context found.
X. Lai and J.L. Massey. A proposal for a new block encryption standard. In Advances in Cryptology - Eurocrypt '90, pages 389-404, Springer-Verlag, Berlin, 1991.
No context found.
Xuejia Lai and James L. Massey. A proposal for a new block encryption standard. In Ivan B. Damgard, editor, Proceedings of Eurocrypt'90, number 473 in Lecture Notes in Computer Science, pages 389--404. Springer-Verlag, 1990.
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