Efficient configurations for block ciphers with unified ENC/DEC paths

Block Ciphers providing the combined functionalities of encryption and decryption are required to operate in modes of operation like CBC and ELmD. Hence such architectures form critical building blocks for secure cryptographic implementations. Depending on the algebraic structure of a given cipher,...

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Vydáno v:2017 IEEE International Symposium on Hardware Oriented Security and Trust (HOST) s. 41 - 46
Hlavní autoři: Banik, Subhadeep, Bogdanov, Andrey, Regazzoni, Francesco
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.05.2017
Témata:
Ciphers
Computer architecture
Encryption
Energy consumption
Logic gates
Wires
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Abstract Block Ciphers providing the combined functionalities of encryption and decryption are required to operate in modes of operation like CBC and ELmD. Hence such architectures form critical building blocks for secure cryptographic implementations. Depending on the algebraic structure of a given cipher, there may be multiple ways of constructing the combined encryption/decryption circuit, each targeted at optimizing lightweight design metrics like area or power etc. In this paper we look at how the choice of circuit configuration affects the energy required to perform one encryption/decryption. We begin by analyzing 12 circuit configurations for the Advanced Encryption Standard (AES-128) cipher and establish some design rules for energy efficiency. We then extend our analysis to several lightweight block ciphers. In the second part of the paper we also investigate area optimized circuits for combined implementations of these ciphers.
AbstractList Block Ciphers providing the combined functionalities of encryption and decryption are required to operate in modes of operation like CBC and ELmD. Hence such architectures form critical building blocks for secure cryptographic implementations. Depending on the algebraic structure of a given cipher, there may be multiple ways of constructing the combined encryption/decryption circuit, each targeted at optimizing lightweight design metrics like area or power etc. In this paper we look at how the choice of circuit configuration affects the energy required to perform one encryption/decryption. We begin by analyzing 12 circuit configurations for the Advanced Encryption Standard (AES-128) cipher and establish some design rules for energy efficiency. We then extend our analysis to several lightweight block ciphers. In the second part of the paper we also investigate area optimized circuits for combined implementations of these ciphers.
Author Bogdanov, Andrey
Regazzoni, Francesco
Banik, Subhadeep
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  givenname: Subhadeep
  surname: Banik
  fullname: Banik, Subhadeep
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  organization: Temasek Labs., Nanyang Technol. Univ., Singapore, Singapore
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  givenname: Andrey
  surname: Bogdanov
  fullname: Bogdanov, Andrey
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  organization: DTU Compute, Tech. Univ. of Denmark, Lyngby, Denmark
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  givenname: Francesco
  surname: Regazzoni
  fullname: Regazzoni, Francesco
  email: regazzoni@alari.ch
  organization: ALaRI, USI, Lugano, Switzerland
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Snippet Block Ciphers providing the combined functionalities of encryption and decryption are required to operate in modes of operation like CBC and ELmD. Hence such...
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StartPage 41
SubjectTerms Ciphers
Computer architecture
Encryption
Energy consumption
Logic gates
Wires
Title Efficient configurations for block ciphers with unified ENC/DEC paths
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