ChaCha, a variant of Salsa20. ChaCha8 is a 256-bit stream cipher based on the 8-round cipher Salsa20/8. The changes from Salsa20/8 to ChaCha8 are designed to improve diffusion per round, conjecturally increasing resistance to cryptanalysis, while preserving—and often improving—time per round. ChaCha12 and ChaCha20 are analogous modifications of the 12-round and 20-round ciphers Salsa20/12 and Salsa20/20. This paper presents the ChaCha family and explains the differences between Salsa20 and ChaCha

References in zbMATH (referenced in 22 articles , 1 standard article )

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  1. Kneusel, Ronald T.: Random numbers and computers (2018)
  2. Paul, Goutam; Ray, Souvik: On data complexity of distinguishing attacks versus message recovery attacks on stream ciphers (2018)
  3. Adomnicai, Alexandre; Fournier, Jacques J. A.; Masson, Laurent: Bricklayer attack: a side-channel analysis on the ChaCha quarter round (2017)
  4. Dey, Sabyasachi; Sarkar, Santanu: Improved analysis for reduced round Salsa and ChaCha (2017)
  5. Alekseychuk, A. N.; Konyushok, S. N.: On the efficiency of the probabilistic neutral bits method in statistical cryptanalysis of synchronous stream ciphers (2016)
  6. Dinu, Daniel; Perrin, Léo; Udovenko, Aleksei; Velichkov, Vesselin; Großschädl, Johann; Biryukov, Alex: Design strategies for ARX with provable bounds: Sparx and LAX (2016)
  7. Imamura, Kazuya; Minematsu, Kazuhiko; Iwata, Tetsu: Integrity analysis of authenticated encryption based on stream ciphers (2016)
  8. Liu, Yunwen; Wang, Qingju; Rijmen, Vincent: Automatic search of linear trails in ARX with applications to SPECK and Chaskey (2016)
  9. Maitra, Subhamoy: Chosen IV cryptanalysis on reduced round ChaCha and Salsa (2016)
  10. Schneider, Tobias; Moradi, Amir; Güneysu, Tim: Arithmetic addition over Boolean masking. Towards first- and second-order resistance in hardware (2015)
  11. Aumasson, Jean-Philippe; Meier, Willi; Phan, Raphael C.-W.; Henzen, Luca: The hash function BLAKE (2014)
  12. Halevi, Shai; Shoup, Victor: Algorithms in HElib (2014)
  13. Khalid, Ayesha; Paul, Goutam; Chattopadhyay, Anupam: New speed records for Salsa20 stream cipher using an autotuning framework on GPUs (2013)
  14. Aumasson, Jean-Philippe; Guo, Jian; Knellwolf, Simon; Matusiewicz, Krystian; Meier, Willi: Differential and invertibility properties of BLAKE (2010)
  15. Vidali, Janoš; Nose, Peter; Pašalić, Enes: Collisions for variants of the BLAKE hash function (2010)
  16. Wang, Houzhen; Zhang, Huanguo: A fast pseudorandom number generator with BLAKE hash function (2010)
  17. Brier, Eric; Khazaei, Shahram; Meier, Willi; Peyrin, Thomas: Linearization framework for collision attacks: application to CubeHash and MD6 (2009)
  18. Aumasson, Jean-Philippe; Fischer, Simon; Khazaei, Shahram; Meier, Willi; Rechberger, Christian: New features of Latin dances: analysis of Salsa, ChaCha, and Rumba (2008)
  19. Fischer, Simon; Khazaei, Shahram; Meier, Willi: Chosen IV statistical analysis for key recovery attacks on stream ciphers (2008)
  20. Khazaei, Shahram; Meier, Willi: New directions in cryptanalysis of self-synchronizing stream ciphers (2008)

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