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Working for all segments 2d variant

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Ugljesa Jovanovic 2020-05-15 23:50:18 +02:00 committed by Ugljesa Jovanovic
parent d92db320c3
commit 1904e2b9f2
No known key found for this signature in database
GPG Key ID: 178E6DFCECCB0E0F
1 changed files with 26 additions and 14 deletions
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40
multiplatform-crypto/src/commonMain/kotlin/com/ionspin/kotlin/crypto/keyderivation/Argon2.kt
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@ -98,12 +98,12 @@ class Argon2 internal constructor(
fun compressionFunctionG(
x: Array<UByte>,
y: Array<UByte>,
previousBlock: Array<UByte>,
referenceBlock: Array<UByte>,
currentBlock: Array<UByte>,
xorWithCurrentBlock: Boolean
): Array<UByte> {
val r = x xor y
val r = referenceBlock xor previousBlock
// println("R = X xor Y")
// r.hexColumsPrint(16)
// val r = Array<UByte>(1024) { 0U } // view as 8x8 matrix of 16 byte registers
@ -138,7 +138,7 @@ class Argon2 internal constructor(
// z.hexColumsPrint(16)
val final = if (xorWithCurrentBlock) {
// println("Z xor R xor CURRENT")
(z xor r) xor ((x xor y) xor currentBlock)
(z xor r) xor currentBlock
} else {
// println("Z xor R")
z xor r
@ -329,10 +329,11 @@ class Argon2 internal constructor(
// blocks in the last SL - 1 = 3 segments computed and finished in
// lane l. If B[i][j] is the first block of a segment, then the
// very last index from W is excluded.
val segmentIndex = column - (slice * (columnCount / 4))
val referenceAreaSize = if (iteration == 0) {
if (slice == 0) {
//All indices except the previous
column - 1
(column % (columnCount / 4)) - 1
} else {
if (lane == l) {
//Same lane
@ -347,9 +348,9 @@ class Argon2 internal constructor(
}
} else {
if (lane == l) {
columnCount - (columnCount / 4) + column - 1
columnCount - (columnCount / 4) + (column % (columnCount / 4) - 1)
} else {
columnCount - (columnCount / 4) + if (column == 0) {
columnCount - (columnCount / 4) + if (column % (columnCount / 4) == 0) {
-1
} else {
0
@ -575,16 +576,27 @@ class Argon2 internal constructor(
}
}
} else {
val (l, z) = computeIndexNew(matrix, lane, 0, columnCount, parallelism.toInt(), iteration, slice, type)
matrix[lane][0] = compressionFunctionG(matrix[lane][columnCount - 1], matrix[l][z], matrix[lane][0], true)
for (column in 1..(slice * segmentLength)) {
val (l, z) = computeIndexNew(matrix, lane, column, columnCount, parallelism.toInt(), iteration, slice, type)
println("Calling compress for I: $iteration S: $slice Lane: $lane Column: $column with l: $l z: $z")
matrix[lane][column] =
compressionFunctionG(matrix[lane][column - 1], matrix[l][z], matrix[lane][column], true)
if (slice == 0) {
val (l, z) = computeIndexNew(matrix, lane, 0, columnCount, parallelism.toInt(), iteration, slice, type)
matrix[lane][0] = compressionFunctionG(matrix[lane][columnCount - 1], matrix[l][z], matrix[lane][0], true)
for (column in 1 until segmentLength) {
val (l, z) = computeIndexNew(matrix, lane, column, columnCount, parallelism.toInt(), iteration, slice, type)
println("Calling compress for I: $iteration S: $slice Lane: $lane Column: $column with l: $l z: $z")
matrix[lane][column] =
compressionFunctionG(matrix[lane][column - 1], matrix[l][z], matrix[lane][column], true)
// matrix[lane][column].hexColumsPrint(16)
}
} else {
for (column in slice * segmentLength until (slice + 1) * segmentLength) {
val (l, z) = computeIndexNew(matrix, lane, column, columnCount, parallelism.toInt(), iteration, slice, type)
println("Calling compress for I: $iteration S: $slice Lane: $lane Column: $column with l: $l z: $z")
matrix[lane][column] =
compressionFunctionG(matrix[lane][column - 1], matrix[l][z], matrix[lane][column], true)
// matrix[lane][column].hexColumsPrint(16)
}
}
}