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RFC 5830, "GOST 28147-89: Encryption, Decryption, and Message Authentication Code (MAC) Algorithms", March 2010

Source of RFC: INDEPENDENT

Errata ID: 2152
Status: Verified
Type: Technical

Reported By: Dolmatov V.
Date Reported: 2010-04-09
Verifier Name: Nevil Brownlee
Date Verified: 2013-03-12

Section 7.2 says:

The block of encrypted data Tc(1) makes the initial filling of N1, N2
   for generating the second block of the running key Gc(2).  The block
   Tc(1) is written in N1 and N2 in accordance with the requirements in
   the subsection 6.1, the resulted block Gc(2) is added bitwise modulo
   2 in the adder CM5 to the second block of the encrypted data Tc(2).
   This results in the block of plain text Tc(2).

It should say:

The block of encrypted data Tc(1) makes the initial filling of N1, N2
   for generating the second block of the running key Gc(2).  The block
   Tc(1) is written in N1 and N2 in accordance with the requirements in
   the subsection 6.1. The filling of N1 and N2 is encrypted in the electronic
   codebook mode according to the requirements of section 5.1. The encrypted
   filling of N1 and N2 makes the second 64-bit block Gc(2) which is added
   bitwise modulo 2 in the adder CM5 to the second block of the encrypted data
   Tc(2). This results in the block of plain text Tc(2).

Notes:

One necessary statement was missed in the text.

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