io.github.novacrypto.bip32.HmacSha512 Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of cwvj Show documentation

Java sdk for Dapps interact with cwv blockchain node

The newest version!

package io.github.novacrypto.bip32;

import io.github.novacrypto.toruntime.CheckedExceptionToRuntime;

import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;

final class HmacSha512 {
  private static final String HMAC_SHA512 = "HmacSHA512";
  
  static byte[] hmacSha512(byte[] byteKey, byte[] seed) {
    return initialize(byteKey)
      .doFinal(seed);
  }
  
  private static Mac initialize(byte[] byteKey) {
    final Mac hmacSha512 = getInstance("HmacSHA512");
    final SecretKeySpec keySpec = new SecretKeySpec(byteKey, "HmacSHA512");
    CheckedExceptionToRuntime.toRuntime(new CheckedExceptionToRuntime.Action() {
          public void run() throws Exception {
            hmacSha512.init(keySpec);
          }
        });
    return hmacSha512;
  }
  
  private static Mac getInstance(final String HMAC_SHA256) {
    return (Mac)CheckedExceptionToRuntime.toRuntime(new CheckedExceptionToRuntime.Func() {
          public Mac run() throws Exception {
            return Mac.getInstance(HMAC_SHA256);
          }
        });
  }
}


/* Location:              C:\Users\Administrator\Desktop\mnemonic-sdk-1.0.0.jar!\io\github\novacrypto\bip32\HmacSha512.class
 * Java compiler version: 7 (51.0)
 * JD-Core Version:       1.1.3
 */