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feat(core/sdbackup): change sizes based on review

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This commit is contained in:
obrusvit 2024-01-09 15:50:28 +01:00
parent 33ca3ef850
commit b82e80fbf6
1 changed files with 5 additions and 5 deletions
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10
core/src/storage/sd_seed_backup.py
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@ -92,15 +92,15 @@ def _storage_blocks_gen() -> Generator[int, None, None]:
# Backup Memory Block Layout:
# +----------------------+------------------------+--------------------+-------------------------------+
# | SDBACKUP_MAGIC (4B) | SDBACKUP_VERSION (1B) | BACKUP_TYPE (1B) | SEED_LENGTH (4B) |
# | SDBACKUP_MAGIC (4B) | SDBACKUP_VERSION (2B) | BACKUP_TYPE (1B) | SEED_LENGTH (2B) |
# +----------------------+------------------------+--------------------+-------------------------------+
# | MNEMONIC (variable length) | HASH (32B) | Padding (variable) |
# +-----------------------------------------------+--------------------+-------------------------------+
#
# - SDBACKUP_MAGIC: 4 bytes magic number identifying the backup block
# - SDBACKUP_VERSION: 1 bytes representing the version of the backup format (for future compatibility)
# - SDBACKUP_VERSION: 2 bytes representing the version of the backup format (for future compatibility)
# - BACKUP_TYPE: 1 bytes representing the version of the backup format
# - SEED_LENGTH: 4 bytes (big-endian) indicating the length of the mnemonic
# - SEED_LENGTH: 2 bytes (big-endian) indicating the length of the mnemonic
# - MNEMONIC: Variable length field containing the mnemonic
# - HASH: 32 bytes sha256 hash of all previous fields
# - Padding: Remaining bytes of the block (if any) are padding
@ -108,9 +108,9 @@ def _storage_blocks_gen() -> Generator[int, None, None]:
# The total size of the block is defined by SDCARD_BLOCK_SIZE_B.
MAGIC_LEN = const(4)
VERSION_LEN = const(1)
VERSION_LEN = const(2)
BACKUPTYPE_LEN = const(1)
SEEDLEN_LEN = const(4)
SEEDLEN_LEN = const(2)
HASH_LEN = const(32)