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文字列のハッシュ値を取得

Java

Last updated at 2014-07-23Posted at 2014-07-23

String source = "source string";

try {
    MessageDigest md = MessageDigest.getInstance("SHA-512");
    md.update(source.getBytes());
    byte[] hash = md.digest();
    StringBuilder sb = new StringBuilder();
    for (byte b : hash) {
        sb.append(String.format("%02x", b));
    }
} catch (NoSuchAlgorithmException e) {
    System.out.printf(
        "Exception: %s, Source string: %s",
        e.getMessage(),
        source);
}

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