Used to store data which is repeatedly sent to SHA engine, during LMS root value calculation. More...

Detailed Description

Used to store data which is repeatedly sent to SHA engine, during LMS root value calculation.

Size = 16(I) + 4(node_number/2) + 2(D_INTR) + (32 * 2)

Field Documentation

u8 XSecure_LmsPubKeyTmp_::D[XSECURE_LMS_D_FIELD_SIZE]

D - XSECURE_D_INTR or XSECURE_D_PLEAF Size - 2 bytes, 21st & 22nd byte.

u32 XSecure_LmsPubKeyTmp_::half_node_number

(node number/2), used to get unique hash o/p for same data for every node Size - 4 bytes, 16 to 20 bytes

u8 XSecure_LmsPubKeyTmp_::I[XSECURE_LMS_I_FIELD_SIZE]

I - Merkle Tree's unique identifier (uniformly random 16-byte string) Size - 16 bytes, 0 to 15 bytes.

u8 XSecure_LmsPubKeyTmp_::Tmp[XSECURE_LMS_M_BYTE_FIELD_SIZE+XSECURE_LMS_M_BYTE_FIELD_SIZE]

Tmp - Used to store previous hash output and adjacent node value in right order to send to SHA engine Size - 32 * 2 = 64 bytes, 23 to 85 bytes.