package o;

/* loaded from: classes2.dex */
public final class KzA {
    private static final char[] a = "0123456789ABCDEF".toCharArray();

    public static byte[] b(String str) {
        char[] charArray = str.toCharArray();
        if ((charArray.length & 1) != 0) {
            throw new IllegalArgumentException("Odd number of characters.");
        }
        byte[] bArr = new byte[charArray.length >> 1];
        int i = 0;
        int i2 = 0;
        while (i < charArray.length) {
            int digit = Character.digit(charArray[i], 16);
            if (digit == -1) {
                throw new IllegalArgumentException("Illegal hexadecimal character at index ".concat(String.valueOf(i)));
            }
            int i3 = i + 1;
            int digit2 = Character.digit(charArray[i3], 16);
            if (digit2 == -1) {
                throw new IllegalArgumentException("Illegal hexadecimal character at index ".concat(String.valueOf(i3)));
            }
            i += 2;
            bArr[i2] = (byte) ((digit << 4) | digit2);
            i2++;
        }
        return bArr;
    }

    public static String e(byte[] bArr) {
        StringBuilder sb = new StringBuilder(bArr.length << 1);
        for (byte b : bArr) {
            char[] cArr = a;
            sb.append(cArr[(b >> 4) & 15]);
            sb.append(cArr[b & 15]);
        }
        return sb.toString();
    }
}