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Collisions for variants of the BLAKE hash functionVidali, Janoš ; Nose, Peter, matematika ; Pašalić, EnesIn this paper we present an attack to the BLOKE and BRAKE hash functions, which are weakened versions of the SHA-3 candidate BLAKE. In difference to BLAKE, the BLOKE hash function does not permute ... the message words and constants in the round computation of the compression function, and BRAKE additionally removes feedforward and zeroes the constants used in each round of the compression function. We show that in these cases we can efficiently find, for any intermediate hash value, a fixed-point block giving us an internal collision, thus producing collisions for messages of equal length in case of BLOKE, and internal collisions for BRAKE.Source: Information processing letters. - ISSN 0020-0190 (Vol. 110, no. 14/15, July 2010, str. 585-590)Type of material - article, component part ; adult, seriousPublish date - 2010Language - englishCOBISS.SI-ID - 1024263252
Author
Vidali, Janoš |
Nose, Peter, matematika |
Pašalić, Enes
Topics
BLAKE |
BLOKE |
BRAKE |
collision |
cryptography |
fixed point |
hash functions
source: Information processing letters. - ISSN 0020-0190 (Vol. 110, no. 14/15, July 2010, str. 585-590)
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Vidali, Janoš | 30920 |
Nose, Peter, matematika | 31355 |
Pašalić, Enes | 27777 |
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