AUTACK (EAN001) S4; 2002 - Edition 2016; GS1

EANCOM® 2002 S4	Edition 2016	Part II
AUTACK	Secure authentication and acknowledgement message

2. Message Structure Chart

1

M

1

-

Message header

M

99

-

USH-USA-SG2

2

M

1

-

Security header

3

C

3

-

Security algorithm

C

2

-

USC-USA

4

M

1

-

Certificate

5

C

3

-

Security algorithm

6

M

1

-

Secured data identification

M

9999

-

USX-USY

7

M

1

-

Security references

8

M

9

-

Security on references

M

99

-

UST

9

M

1

-

Security trailer

10

M

1

-

Message trailer

© Copyright GS1

Edition 2016