what-the-bank/sources/org/bouncycastle/util/encoders/Base64.java

72 lines
2.6 KiB
Java

package org.bouncycastle.util.encoders;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import org.bouncycastle.util.Strings;
/* loaded from: classes6.dex */
public class Base64 {
private static final Encoder encoder = new Base64Encoder();
public static String toBase64String(byte[] bArr, int i, int i2) {
return Strings.fromByteArray(encode(bArr, i, i2));
}
public static String toBase64String(byte[] bArr) {
return toBase64String(bArr, 0, bArr.length);
}
public static byte[] encode(byte[] bArr, int i, int i2) {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(((i2 + 2) / 3) << 2);
try {
encoder.encode(bArr, i, i2, byteArrayOutputStream);
return byteArrayOutputStream.toByteArray();
} catch (Exception e) {
StringBuilder sb = new StringBuilder("exception encoding base64 string: ");
sb.append(e.getMessage());
throw new EncoderException(sb.toString(), e);
}
}
public static byte[] encode(byte[] bArr) {
return encode(bArr, 0, bArr.length);
}
public static int encode(byte[] bArr, OutputStream outputStream) throws IOException {
return encoder.encode(bArr, 0, bArr.length, outputStream);
}
public static int encode(byte[] bArr, int i, int i2, OutputStream outputStream) throws IOException {
return encoder.encode(bArr, i, i2, outputStream);
}
public static byte[] decode(byte[] bArr) {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream((bArr.length / 4) * 3);
try {
encoder.decode(bArr, 0, bArr.length, byteArrayOutputStream);
return byteArrayOutputStream.toByteArray();
} catch (Exception e) {
StringBuilder sb = new StringBuilder("unable to decode base64 data: ");
sb.append(e.getMessage());
throw new DecoderException(sb.toString(), e);
}
}
public static byte[] decode(String str) {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream((str.length() / 4) * 3);
try {
encoder.decode(str, byteArrayOutputStream);
return byteArrayOutputStream.toByteArray();
} catch (Exception e) {
StringBuilder sb = new StringBuilder("unable to decode base64 string: ");
sb.append(e.getMessage());
throw new DecoderException(sb.toString(), e);
}
}
public static int decode(String str, OutputStream outputStream) throws IOException {
return encoder.decode(str, outputStream);
}
}