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Porama6400/Checksum.java

Created January 12, 2018 03:06
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A method to checksum a file
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Checksum.java
public static String checksum(File file) throws IOException, NoSuchAlgorithmException {
MessageDigest digest = MessageDigest.getInstance("SHA-256");
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
byte[] buff = new byte[bis.available()];
bis.read(buff, 0, buff.length);
byte[] hash = digest.digest(buff);
return new BASE64Encoder().encode(hash);
}
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