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move alternate erase functions to docs

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pedro 2024-10-18 10:54:45 +02:00
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commit be28ec2a1f
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docs/dev-es.md Normal file
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## borrado minimalista
Un enfoque inicial que teníamos para el borrado de disco son las siguientes funciones, esto lo hemos descartado para usar una herramienta más avanzada en el borrado [usody-sanitize](https://github.com/usody/sanitize/)
```python
## Xavier Functions ##
def erase_basic(disk):
"""
Basic Erasure
https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=917935
Settings for basic data erasure using shred Linux command.
A software-based fast non-100%-secured way of erasing data storage.
Performs 1 pass overwriting one round using all zeros.
Compliant with NIST SP-800-8y8.
In settings appear:
WB_ERASE = EraseBasic
WB_ERASE_STEPS = 1
WB_ERASE_LEADING_ZEROS = False
"""
cmd = f'shred -vn 1 /dev/{disk}'
return [exec_cmd_erase(cmd)]
def erase_baseline(disk):
"""
Baseline Secure Erasure
Settings for advanced data erasure using badblocks Linux software.
A secured-way of erasing data storages, erase hidden areas,
checking the erase sector by sector.
Performs 1 pass overwriting each sector with zeros and a final verification.
Compliant with HMG Infosec Standard 5 Baseline.
In settings appear:
WB_ERASE = EraseSectors
WB_ERASE_STEPS = 1
WB_ERASE_LEADING_ZEROS = True
WB_ERASE_1_METHOD = EraseBasic
WB_ERASE_1_STEP_TYPE = 0
WB_ERASE_2_METHOD = EraseSectors
WB_ERASE_2_STEP_TYPE = 1
"""
result = []
cmd = f'shred -zvn 0 /dev/{disk}'
result.append(exec_cmd_erase(cmd))
cmd = f'badblocks -st random -w /dev/{disk}'
result.append(exec_cmd_erase(cmd))
return result
def erase_enhanced(disk):
"""
Enhanced Secure Erasure
Settings for advanced data erasure using badblocks Linux software.
A secured-way of erasing data storages, erase hidden areas,
checking the erase sector by sector.
Performs 3 passes overwriting every sector with zeros and ones,
and final verification. Compliant with HMG Infosec Standard 5 Enhanced.
In settings appear:
WB_ERASE = EraseSectors
WB_ERASE_LEADING_ZEROS = True
WB_ERASE_1_METHOD = EraseBasic
WB_ERASE_1_STEP_TYPE = 1
WB_ERASE_2_METHOD = EraseBasic
WB_ERASE_2_STEP_TYPE = 0
WB_ERASE_3_METHOD = EraseSectors
WB_ERASE_3_STEP_TYPE = 1
"""
result = []
cmd = f'shred -vn 1 /dev/{disk}'
result.append(exec_cmd_erase(cmd))
cmd = f'shred -zvn 0 /dev/{disk}'
result.append(exec_cmd_erase(cmd))
## creo que realmente seria asi (3 pases y una extra poniendo a ceros):
# shred -zvn 3 /def/{disk}
# tampoco estoy seguro que el badblocks haga un proceso de verificacion.
cmd = f'badblocks -st random -w /dev/{disk}'
result.append(exec_cmd_erase(cmd))
return result
## End Xavier Functions ##
## Erase Functions ##
def ata_secure_erase_null(disk):
cmd_baseline = f'hdparm --user-master u --security-erase NULL /dev/{disk}'
return [exec_cmd_erase(cmd_baseline)]
def ata_secure_erase_enhanced(disk):
cmd_enhanced = f'hdparm --user-master u --security-erase-enhanced /dev/{disk}'
return [exec_cmd_erase(cmd_enhanced)]
def nvme_secure_erase(disk):
cmd_encrypted = f'nvme format /dev/{disk} --ses=1'
return [exec_cmd_erase(cmd_encrypted)]
## End Erase Functions ##
```

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workbench-script.py
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@ -73,113 +73,7 @@ SNAPSHOT_BASE = {
'erase': [] 'erase': []
} }
## Command Functions ## ## Command Functions ##
## Erase Functions ##
## Xavier Functions ##
def erase_basic(disk):
"""
Basic Erasure
https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=917935
Settings for basic data erasure using shred Linux command.
A software-based fast non-100%-secured way of erasing data storage.
Performs 1 pass overwriting one round using all zeros.
Compliant with NIST SP-800-8y8.
In settings appear:
WB_ERASE = EraseBasic
WB_ERASE_STEPS = 1
WB_ERASE_LEADING_ZEROS = False
"""
cmd = f'shred -vn 1 /dev/{disk}'
return [exec_cmd_erase(cmd)]
def erase_baseline(disk):
"""
Baseline Secure Erasure
Settings for advanced data erasure using badblocks Linux software.
A secured-way of erasing data storages, erase hidden areas,
checking the erase sector by sector.
Performs 1 pass overwriting each sector with zeros and a final verification.
Compliant with HMG Infosec Standard 5 Baseline.
In settings appear:
WB_ERASE = EraseSectors
WB_ERASE_STEPS = 1
WB_ERASE_LEADING_ZEROS = True
WB_ERASE_1_METHOD = EraseBasic
WB_ERASE_1_STEP_TYPE = 0
WB_ERASE_2_METHOD = EraseSectors
WB_ERASE_2_STEP_TYPE = 1
"""
result = []
cmd = f'shred -zvn 0 /dev/{disk}'
result.append(exec_cmd_erase(cmd))
cmd = f'badblocks -st random -w /dev/{disk}'
result.append(exec_cmd_erase(cmd))
return result
def erase_enhanced(disk):
"""
Enhanced Secure Erasure
Settings for advanced data erasure using badblocks Linux software.
A secured-way of erasing data storages, erase hidden areas,
checking the erase sector by sector.
Performs 3 passes overwriting every sector with zeros and ones,
and final verification. Compliant with HMG Infosec Standard 5 Enhanced.
In settings appear:
WB_ERASE = EraseSectors
WB_ERASE_LEADING_ZEROS = True
WB_ERASE_1_METHOD = EraseBasic
WB_ERASE_1_STEP_TYPE = 1
WB_ERASE_2_METHOD = EraseBasic
WB_ERASE_2_STEP_TYPE = 0
WB_ERASE_3_METHOD = EraseSectors
WB_ERASE_3_STEP_TYPE = 1
"""
result = []
cmd = f'shred -vn 1 /dev/{disk}'
result.append(exec_cmd_erase(cmd))
cmd = f'shred -zvn 0 /dev/{disk}'
result.append(exec_cmd_erase(cmd))
## creo que realmente seria asi (3 pases y una extra poniendo a ceros):
# shred -zvn 3 /def/{disk}
# tampoco estoy seguro que el badblocks haga un proceso de verificacion.
cmd = f'badblocks -st random -w /dev/{disk}'
result.append(exec_cmd_erase(cmd))
return result
## End Xavier Functions ##
def ata_secure_erase_null(disk):
cmd_baseline = f'hdparm --user-master u --security-erase NULL /dev/{disk}'
return [exec_cmd_erase(cmd_baseline)]
def ata_secure_erase_enhanced(disk):
cmd_enhanced = f'hdparm --user-master u --security-erase-enhanced /dev/{disk}'
return [exec_cmd_erase(cmd_enhanced)]
def nvme_secure_erase(disk):
cmd_encrypted = f'nvme format /dev/{disk} --ses=1'
return [exec_cmd_erase(cmd_encrypted)]
## End Erase Functions ##
@logs @logs
def get_disks(): def get_disks():