laforge has uploaded this change for review. (
https://gerrit.osmocom.org/c/pysim/+/41690?usp=email )
Change subject: pySim.esim.saip.personalization: Support Milenage customization
......................................................................
pySim.esim.saip.personalization: Support Milenage customization
Milenage offers the capability for operators to modify the r1-r5
rotation constants as well as the c1-c5 xor-ing constants; let's
add ConfigurableParameters for that.
Change-Id: I397df6c0c708a8061e4adc0fde03a3f746bcb5b6
Related: SYS#7787
---
M pySim/esim/saip/personalization.py
1 file changed, 25 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/pysim refs/changes/90/41690/1
diff --git a/pySim/esim/saip/personalization.py
b/pySim/esim/saip/personalization.py
index 053ea0c..068ddba 100644
--- a/pySim/esim/saip/personalization.py
+++ b/pySim/esim/saip/personalization.py
@@ -322,3 +322,28 @@
if self.input_value not in [1, 2, 3]:
raise ValueError('Invalid algorithmID %s' % (self.input_value))
self.value = self.input_value
+class MilenageRotationConstants(AlgoConfig, key='rotationConstants'):
+ """rotation constants r1,r2,r3,r4,r5 of Milenage, Range 0..127. See 3GPP
TS 35.206 Sections 2.3 + 5.3.
+ Provided as octet-string concatenation of all 5 constants."""
+ def validate(self):
+ super().validate()
+ if len(self.input_value) != 5:
+ raise('Length of value must be 5 octets')
+ for r in self.input_value:
+ if r > 127:
+ raise ValueError('r values must be between 0 and 127')
+class MilenageXoringConstants(AlgoConfig, key='xoringConstants'):
+ """XOR-ing constants c1,c2,c3,c4,c5 of Milenage, 128bit each. See 3GPP TS
35.206 Sections 2.3 + 5.3.
+ Provided as octet-string concatenation of all 5 constants."""
+ def validate(self):
+ if len(self.input_value) != 80:
+ raise('Length of value must be 80 octets')
+ super().validate()
+class TuakNumberOfKeccak(AlgoConfig, key='numberOfKeccak'):
+ """Number of iterations of Keccak-f[1600] permuitation as recomended by
Section 7.2 of 3GPP TS 35.231"""
+ def validate(self):
+ if not isinstance(self.input_value, int):
+ raise ValueError('Value must be an integer')
+ if self.input_value < 1 or self.input_value > 255:
+ raise ValueError('Value must be an integer between 1 and 255')
+ self.value = self.input_value
--
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Gerrit-MessageType: newchange
Gerrit-Project: pysim
Gerrit-Branch: master
Gerrit-Change-Id: I397df6c0c708a8061e4adc0fde03a3f746bcb5b6
Gerrit-Change-Number: 41690
Gerrit-PatchSet: 1
Gerrit-Owner: laforge <[email protected]>
