PPK1 Keys and Related Parameters - 2023.1 English

Standalone Library Documentation: BSP and Libraries Document Collection (UG643)

Document ID
UG643
Release Date
2023-05-16
Version
2023.1 English

The following table shows the PPK1 keys and related parameters.

Parameter Name Description
XSK_EFUSEPS_WRITE_PPK1_SHA3_HASH Default = FALSE

TRUE burns PPK1 sha3 hash provided in XSK_EFUSEPS_PPK1_SHA3_HASH.

FALSE ignores the hash provided in XSK_EFUSEPS_PPK1_SHA3_HASH.

XSK_EFUSEPS_PPK1_IS_SHA3 Default = TRUE

TRUE XSK_EFUSEPS_PPK1_SHA3_HASH should be of string length 96 it specifies that PPK1 is used to program SHA3 hash.

FALSE XSK_EFUSEPS_PPK1_SHA3_HASH should be of string length 64 it specifies that PPK1 is used to program SHA2 hash.

XSK_EFUSEPS_PPK1_HASH Default = 0000000000000000000000000000000000000000000000000000000000000000

The value mentioned in this will be converted to hex buffer and written into the Zynq UltraScale+ MPSoC PS eFUSE array when write API used. This value should be given in string format. It should be 64 or 96 characters long, valid characters are 0-9,a-f,A-F. Any other character is considered as invalid string and will not burn PPK1 hash.

Note that,for writing the PPK11 hash, XSK_EFUSEPS_WRITE_PPK1_SHA3_HASH should have TRUE value.

By default, PPK1 hash will be provided with 64 character length to program PPK1 hash with sha2 hash so XSK_EFUSEPS_PPK1_IS_SHA3 also will be in FALSE state. But to program PPK1 hash with SHA3 hash make XSK_EFUSEPS_PPK1_IS_SHA3 to TRUE and provide sha3 hash of length 96 characters XSK_EFUSEPS_PPK1_HASH so that one can program sha3 hash.