AT88SA10HS(2009) データシートの表示（PDF） - Atmel Corporation

部品番号

コンポーネント説明

メーカー

AT88SA10HS
(Rev.:2009)

CryptoAuthentication Host Security Chip

Atmel Corporation 

4.3.

HOST2

Compares the value previously generated by the AT88SA10HS using HOST0 and HOST1 with that on the input stream

coming from the client and returns status to indicate whether or not the two matched. This command returns an error if

HOST1 has not been previously successfully run within this wake cycle.

If the two digests do not match, the AT88SA10HS provides no information as to the source of the mismatch, which

must be deduced from the inputs to the three HOSTX commands. On a match failure, the entire set of HOST0, HOST1

& HOST2 commands must be re-executed – HOST2 cannot be repeatedly executed.

Table 12.

Opcode

Param1

Param2

Data

Input Parameters

Name

HOST2

Zero1

Zero2

ClientResponse

Size

1

1

2

32

0x80

Must be 0x00

Must be 0x00 00

Response from the client.

Notes

Table 13. Output Parameters

Name

Size

Notes

Success

1 If the input ClientResponse matches the internally generated response, a value of 0 will be

returned by the AT88SA10HS after a THOST delay. If the two digests do NOT match, a

value of 0x0F will be returned after a THOST delay.

16 AT88SA10HS Host Authentication Chip [Preliminary]

8595B–SMEM–09/09

Share Link: