72 lines
2.5 KiB
Java
72 lines
2.5 KiB
Java
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package o;
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import com.eracom.OBM2.EncryptedMessageException;
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import java.math.BigInteger;
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/* loaded from: classes.dex */
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public final class Ltv {
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private int a;
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private int b;
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private int c;
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private BigInteger d;
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byte[] e;
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private BigInteger f;
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private int h;
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private String i;
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private String j;
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public Ltv(C17386wMj c17386wMj, int i, String str, String str2) throws EncryptedMessageException {
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byte[] bArr;
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this.c = i;
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this.i = str;
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this.j = str2;
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if (i == 0 || str2 == null || str == null) {
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throw new EncryptedMessageException("Error no : 42 Invalid RSA key");
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}
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try {
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this.d = new BigInteger(str2, 16);
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this.f = new BigInteger(str, 16);
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int i2 = c17386wMj.a;
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int length = (this.j.length() + 1) / 2;
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int length2 = (this.i.length() + 1) / 2;
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int i3 = this.c;
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if (length != i3 || length2 != i3) {
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StringBuilder sb = new StringBuilder("Error no : 41 Invalid RSA key length mod=");
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sb.append(length);
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sb.append("<>");
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sb.append(this.c);
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sb.append(" exp=");
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sb.append(length2);
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sb.append("<>");
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sb.append(this.c);
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throw new EncryptedMessageException(sb.toString());
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}
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int i4 = length << 3;
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this.h = i4;
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int i5 = (i4 + 7) / 8;
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this.a = i5;
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this.b = i5 - 1;
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if (i5 < 0) {
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throw new EncryptedMessageException("Error no : 40 input data too large for RSA encryption");
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}
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byte[] byteArray = new BigInteger(1, c17386wMj.c).modPow(this.f, this.d).toByteArray();
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int length3 = byteArray.length;
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if (byteArray[0] != 0 || length3 <= this.a) {
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int i6 = this.a;
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if (length3 < i6) {
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bArr = new byte[i6];
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System.arraycopy(byteArray, 0, bArr, i6 - length3, length3);
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}
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this.e = byteArray;
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}
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int i7 = length3 - 1;
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bArr = new byte[i7];
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System.arraycopy(byteArray, 1, bArr, 0, i7);
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byteArray = bArr;
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this.e = byteArray;
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} catch (NumberFormatException unused) {
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throw new EncryptedMessageException("Error no : 42 Invalid RSA key");
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}
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}
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}
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