74 lines
2.6 KiB
Java
74 lines
2.6 KiB
Java
package o;
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import java.security.GeneralSecurityException;
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import java.security.InvalidKeyException;
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import java.security.KeyStore;
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import java.security.ProviderException;
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import javax.crypto.Cipher;
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import javax.crypto.SecretKey;
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import javax.crypto.spec.GCMParameterSpec;
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/* loaded from: classes2.dex */
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public final class iJF implements InterfaceC4280bVg {
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private final SecretKey d;
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/* JADX INFO: Access modifiers changed from: package-private */
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public iJF(String str, KeyStore keyStore) throws GeneralSecurityException {
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SecretKey secretKey = (SecretKey) keyStore.getKey(str, null);
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this.d = secretKey;
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if (secretKey == null) {
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throw new InvalidKeyException("Keystore cannot load the key with ID: ".concat(String.valueOf(str)));
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}
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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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try {
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return a(bArr, bArr2);
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} catch (GeneralSecurityException | ProviderException unused) {
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try {
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Thread.sleep((int) (Math.random() * 100.0d));
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} catch (InterruptedException unused2) {
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}
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return a(bArr, bArr2);
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}
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}
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private byte[] a(byte[] bArr, byte[] bArr2) throws GeneralSecurityException {
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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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byte[] bArr3 = new byte[bArr.length + 28];
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Cipher cipher = Cipher.getInstance("AES/GCM/NoPadding");
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cipher.init(1, this.d);
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cipher.updateAAD(bArr2);
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cipher.doFinal(bArr, 0, bArr.length, bArr3, 12);
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System.arraycopy(cipher.getIV(), 0, bArr3, 0, 12);
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return bArr3;
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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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try {
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return c(bArr, bArr2);
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} catch (GeneralSecurityException | ProviderException unused) {
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try {
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Thread.sleep((int) (Math.random() * 100.0d));
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} catch (InterruptedException unused2) {
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}
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return c(bArr, bArr2);
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}
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}
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private byte[] c(byte[] bArr, byte[] bArr2) throws GeneralSecurityException {
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if (bArr.length < 28) {
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throw new GeneralSecurityException("ciphertext too short");
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}
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GCMParameterSpec gCMParameterSpec = new GCMParameterSpec(128, bArr, 0, 12);
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Cipher cipher = Cipher.getInstance("AES/GCM/NoPadding");
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cipher.init(2, this.d, gCMParameterSpec);
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cipher.updateAAD(bArr2);
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return cipher.doFinal(bArr, 12, bArr.length - 12);
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}
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}
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