SecretKey engineGenerateKey0(boolean tls12) {
if (spec == null) {
throw new IllegalStateException("TlsPrfGenerator must be initialized");
}
SecretKey key = spec.getSecret();
byte[] secret = (key == null) ? null : key.getEncoded();
try {
byte[] labelBytes = spec.getLabel().getBytes("UTF8");
int n = spec.getOutputLength();
byte[] prfBytes =
(tls12
? doTLS12PRF(
secret,
labelBytes,
spec.getSeed(),
n,
spec.getPRFHashAlg(),
spec.getPRFHashLength(),
spec.getPRFBlockSize())
: doTLS10PRF(secret, labelBytes, spec.getSeed(), n));
return new SecretKeySpec(prfBytes, "TlsPrf");
} catch (GeneralSecurityException e) {
throw new ProviderException("Could not generate PRF", e);
} catch (j86.java.io.UnsupportedEncodingException e) {
throw new ProviderException("Could not generate PRF", e);
}
}
protected void engineInit(AlgorithmParameterSpec params, SecureRandom random)
throws InvalidAlgorithmParameterException {
if (params instanceof TlsPrfParameterSpec == false) {
throw new InvalidAlgorithmParameterException(MSG);
}
this.spec = (TlsPrfParameterSpec) params;
SecretKey key = spec.getSecret();
if ((key != null) && ("RAW".equals(key.getFormat()) == false)) {
throw new InvalidAlgorithmParameterException("Key encoding format must be RAW");
}
}