70 lines
3.9 KiB
Java
70 lines
3.9 KiB
Java
package org.bouncycastle.crypto.tls;
|
|
|
|
import java.io.IOException;
|
|
import java.io.InputStream;
|
|
import java.util.Vector;
|
|
import org.bouncycastle.crypto.Digest;
|
|
import org.bouncycastle.crypto.Signer;
|
|
import org.bouncycastle.crypto.params.DHParameters;
|
|
import org.bouncycastle.util.io.TeeInputStream;
|
|
|
|
/* loaded from: classes6.dex */
|
|
public class TlsDHEKeyExchange extends TlsDHKeyExchange {
|
|
protected TlsSignerCredentials serverCredentials;
|
|
|
|
@Override // org.bouncycastle.crypto.tls.AbstractTlsKeyExchange, org.bouncycastle.crypto.tls.TlsKeyExchange
|
|
public void processServerKeyExchange(InputStream inputStream) throws IOException {
|
|
SecurityParameters securityParameters = this.context.getSecurityParameters();
|
|
SignerInputBuffer signerInputBuffer = new SignerInputBuffer();
|
|
ServerDHParams parse = ServerDHParams.parse(new TeeInputStream(inputStream, signerInputBuffer));
|
|
DigitallySigned parseSignature = parseSignature(inputStream);
|
|
Signer initVerifyer = initVerifyer(this.tlsSigner, parseSignature.getAlgorithm(), securityParameters);
|
|
signerInputBuffer.updateSigner(initVerifyer);
|
|
if (!initVerifyer.verifySignature(parseSignature.getSignature())) {
|
|
throw new TlsFatalAlert((short) 51);
|
|
}
|
|
this.dhAgreePublicKey = TlsDHUtils.validateDHPublicKey(parse.getPublicKey());
|
|
this.dhParameters = validateDHParameters(this.dhAgreePublicKey.getParameters());
|
|
}
|
|
|
|
@Override // org.bouncycastle.crypto.tls.AbstractTlsKeyExchange, org.bouncycastle.crypto.tls.TlsKeyExchange
|
|
public void processServerCredentials(TlsCredentials tlsCredentials) throws IOException {
|
|
if (!(tlsCredentials instanceof TlsSignerCredentials)) {
|
|
throw new TlsFatalAlert((short) 80);
|
|
}
|
|
processServerCertificate(tlsCredentials.getCertificate());
|
|
this.serverCredentials = (TlsSignerCredentials) tlsCredentials;
|
|
}
|
|
|
|
protected Signer initVerifyer(TlsSigner tlsSigner, SignatureAndHashAlgorithm signatureAndHashAlgorithm, SecurityParameters securityParameters) {
|
|
Signer createVerifyer = tlsSigner.createVerifyer(signatureAndHashAlgorithm, this.serverPublicKey);
|
|
createVerifyer.update(securityParameters.clientRandom, 0, securityParameters.clientRandom.length);
|
|
createVerifyer.update(securityParameters.serverRandom, 0, securityParameters.serverRandom.length);
|
|
return createVerifyer;
|
|
}
|
|
|
|
@Override // org.bouncycastle.crypto.tls.AbstractTlsKeyExchange, org.bouncycastle.crypto.tls.TlsKeyExchange
|
|
public byte[] generateServerKeyExchange() throws IOException {
|
|
if (this.dhParameters == null) {
|
|
throw new TlsFatalAlert((short) 80);
|
|
}
|
|
DigestInputBuffer digestInputBuffer = new DigestInputBuffer();
|
|
this.dhAgreePrivateKey = TlsDHUtils.generateEphemeralServerKeyExchange(this.context.getSecureRandom(), this.dhParameters, digestInputBuffer);
|
|
SignatureAndHashAlgorithm signatureAndHashAlgorithm = TlsUtils.getSignatureAndHashAlgorithm(this.context, this.serverCredentials);
|
|
Digest createHash = TlsUtils.createHash(signatureAndHashAlgorithm);
|
|
SecurityParameters securityParameters = this.context.getSecurityParameters();
|
|
createHash.update(securityParameters.clientRandom, 0, securityParameters.clientRandom.length);
|
|
createHash.update(securityParameters.serverRandom, 0, securityParameters.serverRandom.length);
|
|
digestInputBuffer.updateDigest(createHash);
|
|
byte[] bArr = new byte[createHash.getDigestSize()];
|
|
createHash.doFinal(bArr, 0);
|
|
new DigitallySigned(signatureAndHashAlgorithm, this.serverCredentials.generateCertificateSignature(bArr)).encode(digestInputBuffer);
|
|
return digestInputBuffer.toByteArray();
|
|
}
|
|
|
|
public TlsDHEKeyExchange(int i, Vector vector, DHParameters dHParameters) {
|
|
super(i, vector, dHParameters);
|
|
this.serverCredentials = null;
|
|
}
|
|
}
|