Text assumes that Unicode string is represented using UCS-2 encoding where each character is stored in exactly two bytes. Nowadays Unicode contains almost 100000 characters and other encodings with full Unicode coverage like UTF-16 have to be used. In UTF-16 some characters are stored in four bytes using surrogate pairs.

Specify which encoding is used for Unicode string representation. Instead of using high and low bytes base description on octet positions.

p. 1158/l. 19 Part 4/2.15.1.28

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Proposed Disposition of DIS 29500 Comment CZ-0053 (Modified: 2008-01-03) Agreed; the following changes will be made to make this assumption explicit in each algorithm: Part 4, §2.15.1.28, page 1,158, line 15: First, the UTF-16 encoded password shall be hashed using the following algorithm . The following steps assume that all words are unsigned, the word size is two bytes, and that bit-level SHL/SHR operations shift in the direction of the highest-order and lowest-order bit, respectively. [Example: 0×61 SHR 1 is 0xC2, as 01100001 shifted one position in the direction of its highest-order bit is 11000010. end example] : Similar Comments: BR-0006 , CL-0091 , CO-0098 , DE-0088 , GB-0220 , GH-0009 , GR-0027 , IN-0075 , IR-0013 , MY-0021 , PT-0039 , US-0052 , UY-0017 , VE-0018