76 lines
2.2 KiB
Smalltalk
76 lines
2.2 KiB
Smalltalk
"
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(C) 2010 by Holger Hans Peter Freyther
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All Rights Reserved
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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"
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Object subclass: A3A8 [
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<category: 'OsmoGSM-Encryption'>
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COMP := nil.
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A3A8 class >> initialize [
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DLD addLibrary: 'liba3a8'
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]
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A3A8 class >> comp [
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"Return an array with blocks to run GSM crypto"
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^ COMP ifNil: [
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COMP := Array new: 3.
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COMP at: 1 put: [:key :rand :res | self int_COMP128_v1: key rand: rand res: res ].
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COMP at: 2 put: [:key :rand :res | self int_COMP128_v2: key rand: rand res: res ].
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COMP at: 3 put: [:key :rand :res | self int_COMP128_v3: key rand: rand res: res ].
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COMP.
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]
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]
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A3A8 class >> COMP128: aVersion ki: aKI rand: aRand [
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| str |
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aKI size = 16 ifFalse: [
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^ self error: 'KI needs to be 16 bytes'
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].
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aRand size = 16 ifFalse: [
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^ self error: 'RAND needs to be 16 bytes'
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].
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str := ByteArray new: 16.
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(self comp at: aVersion)
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value: aKI
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value: aRand
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value: (CObject new storage: str).
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^ str
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]
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A3A8 class >> int_COMP128_v1: aKI rand: aRand res: aRes [
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<cCall: 'COMP128_1' returning: #void args: #(#string #string #cObject)>
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]
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A3A8 class >> int_COMP128_v2: aKI rand: aRand res: aRes [
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<cCall: 'COMP128_2' returning: #void args: #(#string #string #cObject)>
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]
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A3A8 class >> int_COMP128_v3: aKI rand: aRand res: aRes [
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<cCall: 'COMP128_3' returning: #void args: #(#string #string #cObject)>
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]
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]
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Eval [
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A3A8 initialize.
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]
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