本文整理了Java中org.spongycastle.crypto.digests.SHA256Digest.doFinal()方法的一些代码示例，展示了SHA256Digest.doFinal()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。SHA256Digest.doFinal()方法的具体详情如下：
包路径：org.spongycastle.crypto.digests.SHA256Digest
类名称：SHA256Digest
方法名：doFinal

SHA256Digest.doFinal介绍

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代码示例

代码示例来源：origin: QuincySx/BlockchainWallet-Crypto

public static byte[] sha256(byte[] bytes, int offset, int size) {
  SHA256Digest sha256Digest = new SHA256Digest();
  sha256Digest.update(bytes, offset, size);
  byte[] sha256 = new byte[32];
  sha256Digest.doFinal(sha256, 0);
  return sha256;
}

代码示例来源：origin: com.madgag.spongycastle/core

private static BigInteger deriveSessionKey(BigInteger keyingMaterial)
  {
    /*
     * You should use a secure key derivation function (KDF) to derive the session key.
     * 
     * For the purposes of this example, I'm just going to use a hash of the keying material.
     */
    SHA256Digest digest = new SHA256Digest();
    
    byte[] keyByteArray = keyingMaterial.toByteArray();
    
    byte[] output = new byte[digest.getDigestSize()];
    
    digest.update(keyByteArray, 0, keyByteArray.length);

    digest.doFinal(output, 0);

    return new BigInteger(output);
  }
}

代码示例来源：origin: telehash/telehash-java

/**
 * Return a SHA-256 digest of the provided byte buffer.
 *
 * @param buffer The buffer to digest.
 * @return A 32-byte array representing the digest.
 */
@Override
public byte[] sha256Digest(byte[] buffer) {
  SHA256Digest digest = new SHA256Digest();
  digest.update(buffer, 0, buffer.length);
  byte[] output = new byte[256/8];
  digest.doFinal(output, 0);
  return output;
}