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pto.0.3.1.source-code.Utils.kt Maven / Gradle / Ivy

package se.wollan.crypto

import java.util.Base64

internal fun String.fromBase64(): ByteArray = Base64.getDecoder().decode(this)

internal fun ByteArray.toBase64(): String = Base64.getEncoder().encodeToString(this)

internal fun ByteArray.toStringUTF8(): String = toString(Charsets.UTF_8)

@OptIn(ExperimentalStdlibApi::class)
internal fun ByteArray.toHexString(): String = toHexString(HexFormat.Default)

@OptIn(ExperimentalStdlibApi::class)
internal fun String.fromHexString(): ByteArray = hexToByteArray(HexFormat.Default)

internal fun ByteArray.xor(second: ByteArray): ByteArray {
    require(size == second.size) { "Arrays must have the same length, $size != ${second.size}." }

    val result = ByteArray(size)
    for (i in indices) {
        result[i] = (this[i].toInt() xor second[i].toInt()).toByte()
    }

    return result
}