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Bmap file integrity check #59

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Bmap file integrity check #59

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Commits on Jan 19, 2023

  1. Add bmap checksum field in Bmap struct 

    bmap_file_checksum is going to be used to check the integrity of the
file. It is now included in the Bmap struct type and the
builder.

Signed-off-by: Rafael Garcia Ruiz <[email protected]>
    @Razaloc
    Razaloc committed Jan 19, 2023
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  2. Bmap file integrity check 

    Before using a Bmap file checks if its checksum is correct for the
current bmap file.
Bmap checksum is the application of Sha256 to the file data. When the
bmap file is created, the value of the checksum has to be zero (all ASCII
"0" symbols). Once calculated, zeros are replaced by the checksum, notice
this modifies the file itself.
In order to calculate the checksum before using it and compare it with
the original, we need to set the field as all "0" before applying Sha256.

Closes: #50

Signed-off-by: Rafael Garcia Ruiz <[email protected]>
    @Razaloc
    Razaloc committed Jan 19, 2023
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  3. Remote Bmap file integrity check 

    Remote copy checks the integrity of the bmap file after downloading it.

Signed-off-by: Rafael Garcia Ruiz <[email protected]>
    @Razaloc
    Razaloc committed Jan 19, 2023
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