80 lines
2.9 KiB
Java
80 lines
2.9 KiB
Java
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package o;
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import java.nio.ByteBuffer;
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import java.security.GeneralSecurityException;
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import java.security.spec.AlgorithmParameterSpec;
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import java.util.Arrays;
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import javax.crypto.Cipher;
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import o.uAf;
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/* loaded from: classes2.dex */
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public final class WCy implements InterfaceC4280bVg {
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private static uAf.RVV d = uAf.RVV.ALGORITHM_REQUIRES_BORINGCRYPTO;
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private final Jkv c;
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public WCy(byte[] bArr) throws GeneralSecurityException {
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if (!d.d()) {
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throw new GeneralSecurityException("Can not use AES-GCM in FIPS-mode, as BoringCrypto module is not available.");
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}
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this.c = new Jkv(bArr);
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}
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@Override // o.InterfaceC4280bVg
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public final byte[] b(byte[] bArr, byte[] bArr2) throws GeneralSecurityException {
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int length;
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byte[] b = YTf.b(12);
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Jkv jkv = this.c;
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if (b.length != 12) {
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throw new GeneralSecurityException("iv is wrong size");
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}
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if (bArr.length > 2147483619) {
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throw new GeneralSecurityException("plaintext too long");
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}
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boolean z = jkv.b;
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if (z) {
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length = bArr.length + 28;
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} else {
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length = bArr.length + 16;
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}
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byte[] bArr3 = new byte[length];
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if (z) {
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System.arraycopy(b, 0, bArr3, 0, 12);
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}
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AlgorithmParameterSpec e = Jkv.e(b);
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ThreadLocal<Cipher> threadLocal = Jkv.c;
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threadLocal.get().init(1, jkv.e, e);
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if (bArr2 != null && bArr2.length != 0) {
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threadLocal.get().updateAAD(bArr2);
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}
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int doFinal = threadLocal.get().doFinal(bArr, 0, bArr.length, bArr3, jkv.b ? 12 : 0);
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if (doFinal == bArr.length + 16) {
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return bArr3;
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}
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throw new GeneralSecurityException(String.format("encryption failed; GCM tag must be %s bytes, but got only %s bytes", 16, Integer.valueOf(doFinal - bArr.length)));
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}
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@Override // o.InterfaceC4280bVg
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public final byte[] d(byte[] bArr, byte[] bArr2) throws GeneralSecurityException {
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byte[] copyOf = Arrays.copyOf(bArr, 12);
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Jkv jkv = this.c;
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if (copyOf.length != 12) {
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throw new GeneralSecurityException("iv is wrong size");
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}
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boolean z = jkv.b;
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if (bArr.length < (z ? 28 : 16)) {
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throw new GeneralSecurityException("ciphertext too short");
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}
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if (z && !ByteBuffer.wrap(copyOf).equals(ByteBuffer.wrap(bArr, 0, 12))) {
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throw new GeneralSecurityException("iv does not match prepended iv");
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}
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AlgorithmParameterSpec e = Jkv.e(copyOf);
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ThreadLocal<Cipher> threadLocal = Jkv.c;
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threadLocal.get().init(2, jkv.e, e);
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if (bArr2 != null && bArr2.length != 0) {
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threadLocal.get().updateAAD(bArr2);
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}
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boolean z2 = jkv.b;
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return threadLocal.get().doFinal(bArr, z2 ? 12 : 0, z2 ? bArr.length - 12 : bArr.length);
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}
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}
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