cryptoauthlib.atcacert.atcacert_comp_data_t Class Reference

Inheritance diagram for cryptoauthlib.atcacert.atcacert_comp_data_t:

Static Protected Attributes
int	_pack_ = 1
int	_size_ = 72
list	_fields_

Additional Inherited Members
Public Member Functions inherited from cryptoauthlib.library.AtcaStructure
None	__init__ (self, *args, **kwargs)
def	from_definition (cls)
def	check_rationality (cls)
def	get_field_definition (cls, str name)
Any	__getattribute__ (self, str name)
def	__iter__ (self)
def	__str__ (self)
def	to_c_code (self, name=None, **kwargs)
def	update_from_buffer (self, buffer)

Detailed Description

CTypes definition of certificate signature storage which includes other certificate metadata
which is why it's often identified as "compresessed cert" for the slot in configurators

Field Documentation

_fields_

list cryptoauthlib.atcacert.atcacert_comp_data_t._fields_

staticprotected

Initial value:

=  [
        ('r', c_uint8*32),              # P256 signature 'r' value - big endian
        ('s', c_uint8*32),              # P256 signature 's' value - big endian
        ('year', c_uint64, 5),          # Years after 2000
        ('month', c_uint64, 4),         # Month (0 - 11), see atcacert_tm_utc_t
        ('day', c_uint64, 5),           # Day (1 - 31), see atcacert_tm_utc_t
        ('hour', c_uint64, 5),          # Hour (0 - 23), see atcacert_tm_utc_t
        ('expire', c_uint64, 5),        # Expire years (<=31)
        ('signer_id', c_uint64, 16),    # Value used in the siging cert subject name
        ('chain_id', c_uint64, 4),      # Revision identifier
        ('template_id', c_uint64, 4),   # Location in a chain
        ('reserved_70_4', c_uint64, 4), # Reserved - lower four bits of byte 70
        ('sn_source', c_uint64, 4),     # Serial number format, see atcacert_cert_sn_src_t
        ('reserved_71_8', c_uint64, 8)  # Reserved - byte 71
    ]