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Argon 2 working with new matrix structure

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Ugljesa Jovanovic 2020-05-21 23:23:48 +02:00 committed by Ugljesa Jovanovic
parent 13b60a5eee
commit 7e78bf6fa5
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GPG Key ID: 178E6DFCECCB0E0F
2 changed files with 11 additions and 20 deletions
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17
multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/keyderivation/argon2/Argon2.kt
View File

@ -26,6 +26,7 @@ import com.ionspin.kotlin.crypto.keyderivation.argon2.Argon2Utils.argonBlake2bAr
import com.ionspin.kotlin.crypto.keyderivation.argon2.Argon2Utils.compressionFunctionG
import com.ionspin.kotlin.crypto.keyderivation.argon2.Argon2Utils.validateArgonParameters
import com.ionspin.kotlin.crypto.util.fromLittleEndianArrayToUInt
import com.ionspin.kotlin.crypto.util.hexColumsPrint
import com.ionspin.kotlin.crypto.util.toLittleEndianUByteArray
import com.ionspin.kotlin.crypto.util.xor
@ -202,6 +203,7 @@ class Argon2(
}
val first32Bit = matrix.sliceArray(previousBlockStart until previousBlockStart + 4).fromLittleEndianArrayToUInt()
val second32Bit = matrix.sliceArray(previousBlockStart + 4 until previousBlockStart + 8).fromLittleEndianArrayToUInt()
Pair(first32Bit, second32Bit)
}
ArgonType.Argon2i -> {
@ -324,20 +326,14 @@ class Argon2(
//Run all iterations over all lanes and all segments
executeArgonWithSingleThread()
// val result = matrix.foldIndexed(ubyteArrayOf()) { lane, acc, laneArray ->
// if (acc.size == 0) {
// acc + laneArray[columnCount - 1] // add last element in first lane to the accumulator
// } else {
// // For each element in our accumulator, xor it with an appropriate element from the last column in current lane (from 1 to `parallelism`)
// acc.mapIndexed { index, it -> it xor laneArray[columnCount - 1][index] }.toUByteArray()
//
// }
// }
//Temporary fold
val acc = matrix.getBlockAt(0, columnCount - 1).copyOf()
for (i in 1 until parallelism) {
acc.xor(matrix.getBlockAt(i, columnCount -1))
acc.hexColumsPrint(1024)
(acc xor matrix.getBlockAt(i, columnCount -1)).copyInto(acc)
}
acc.hexColumsPrint(1024)
//Hash the xored last blocks
val hash = argonBlake2bArbitraryLenghtHash(acc, tagLength)
matrix.clearMatrix()
@ -400,6 +396,7 @@ class Argon2(
column,
addressBlock
)
matrix.setBlockAt(lane, column,
compressionFunctionG(
matrix.getBlockAt(lane, previousColumn),

14
multiplatform-crypto/src/commonTest/kotlin/com/ionspin/kotlin/crypto/hash/argon/Argon2MatrixTest.kt
View File

@ -68,17 +68,11 @@ class Argon2MatrixTest {
fun blockRetrievalTest() {
val argon2Matrix = Argon2Matrix(2, 2)
(zeroesBlock + onesBlock + twosBlock + threesBlock).copyInto(argon2Matrix.storage)
println(argon2Matrix[0, 0, 0])
println(argon2Matrix[1, 0, 0])
println(argon2Matrix[2, 0, 0])
println(argon2Matrix[3, 0, 0])
argon2Matrix.storage.hexColumsPrint(1024)
assertTrue {
argon2Matrix[0, 0, 0] == 0U.toUByte() &&
argon2Matrix[1, 0, 0] == 1U.toUByte() &&
argon2Matrix[2, 0, 0] == 2U.toUByte() &&
argon2Matrix[3, 0, 0] == 3U.toUByte()
zeroesBlock.contentEquals(argon2Matrix.getBlockAt(0, 0)) &&
onesBlock.contentEquals(argon2Matrix.getBlockAt(0, 1)) &&
twosBlock.contentEquals(argon2Matrix.getBlockAt(1, 0)) &&
threesBlock.contentEquals(argon2Matrix.getBlockAt(1, 1))
}
}
}