0 1 2 Secure Dataset Read Request Request a digital signature over a specified set of data registers Used in conjunction with Secure Dataset Read Response Model Offset1 Offset of value to read Timestamp Timestamp value is the number of seconds since January 1, 2000 Milliseconds Millisecond counter 0-999 Algorithm Algorithm used to compute the digital signature For future proof NONE No digital signature For test purposes only AES-GMAC-64 64 bit AES signature algorithm is used ECC-256 256 bit ECC signature algorithm is used N Number of registers comprising the digital signature. The value of N must be at least 4 (64 bits) X Number of registers being requested A max of 50 registers are allowed Sequence Sequence number of request Shall be advanced for each request Role Digital Signature ID User's role id 0-5 DS Digital Signature The DS covers all registers from X to N and is N registers in length