Blue Midnight Wish

1 The algorithm

• Author(s): Danilo Gligoroski, Vlastimil Klima, Svein Johan Knapskog, Mohamed El-Hadedy, Jørn Amundsen, Stig Frode Mjølsnes
• Website: http://www.q2s.ntnu.no/sha3_nist_competition/start
• NIST submission package:
  • round 1: Blue_Midnight_Wish.zip
  • round 2: Blue_Midnight_Wish_Round2.zip

Danilo Gligoroski, Vlastimil Klima, Svein Johan Knapskog, Mohamed El-Hadedy, J\orn Amundsen, Stig Frode Mj\olsnes - Cryptographic Hash Function BLUE MIDNIGHT WISH

,2009

http://people.item.ntnu.no/~danilog/Hash/BMW-SecondRound/Supporting_Documentation/BlueMidnightWishDocumentation.pdf
Bibtex

Author : Danilo Gligoroski, Vlastimil Klima, Svein Johan Knapskog, Mohamed El-Hadedy, J\orn Amundsen, Stig Frode Mj\olsnes
Title : Cryptographic Hash Function BLUE MIDNIGHT WISH
In : -
Address :
Date : 2009

Danilo Gligoroski, Vlastimil Klima - A Document describing all modifications made on the Blue Midnight Wish cryptographic hash function before entering the Second Round of SHA-3 hash competition

,2009

http://people.item.ntnu.no/~danilog/Hash/BMW-SecondRound/Supporting_Documentation/Round2Mods.pdf
Bibtex

Author : Danilo Gligoroski, Vlastimil Klima
Title : A Document describing all modifications made on the Blue Midnight Wish cryptographic hash function before entering the Second Round of SHA-3 hash competition
In : -
Address :
Date : 2009

Danilo Gligoroski, Vlastimil Klima, Svein Johan Knapskog, Mohamed El-Hadedy, J\orn Amundsen, Stig Frode Mj\olsnes - Cryptographic Hash Function BLUE MIDNIGHT WISH

,2008

http://people.item.ntnu.no/~danilog/Hash/BMW/Supporting_Documentation/BlueMidnightWishDocumentation.pdf
Bibtex

Author : Danilo Gligoroski, Vlastimil Klima, Svein Johan Knapskog, Mohamed El-Hadedy, J\orn Amundsen, Stig Frode Mj\olsnes
Title : Cryptographic Hash Function BLUE MIDNIGHT WISH
In : -
Address :
Date : 2008

2 Cryptanalysis

We distinguish between two cases: results on the complete hash function, and results on underlying building blocks.

A description of the tables is given here.

2.1 Hash function

Here we list results on the actual hash function. The only allowed modification is to change the security parameter.

Recommended security parameter: Expandrounds₁ = 2

Type of Analysis	Hash Size (n)	Parameters	Compression Function Calls	Memory Requirements	Reference

2.2 Building blocks

Here we list results on underlying building blocks, and the hash function modified by other means than the security parameter.

Note that these results assume more direct control or access over some internal variables (aka. free-start, pseudo, compression function, block cipher, or permutation attacks).

Type of Analysis	Hash Function Part	Hash Size (n)	Parameters/Variants	Compression Function Calls	Memory Requirements	Reference
near-collision	compression	all	(Round 1)	example	-	Thomsen
pseudo-collision	hash	all	(Round 1)	23n/8+1	-	Thomsen
pseudo-preimage	hash	all	(Round 1)	23n/4+1	-	Thomsen

Søren S. Thomsen - A near-collision attack on the Blue Midnight Wish compression function

,2008

http://www2.mat.dtu.dk/people/S.Thomsen/bmw/nc-compress.pdf
Bibtex

Author : Søren S. Thomsen
Title : A near-collision attack on the Blue Midnight Wish compression function
In : -
Address :
Date : 2008

Søren S. Thomsen - Pseudo-cryptanalysis of Blue Midnight Wish

,2009

http://www.mat.dtu.dk/people/S.Thomsen/bmw/bmw-pseudo.pdf
Bibtex

Author : Søren S. Thomsen
Title : Pseudo-cryptanalysis of Blue Midnight Wish
In : -
Address :
Date : 2009