How to generate sha512 hash with a salt using command line?

Question

I use the below Java snippet to generate a hash password using an input and salt. Is there a way I can get that in Linux command line?

public String getPwd(String input, String salt) {
    MessageDigest md = MessageDigest.getInstance("SHA-512");
    md.update(salt.getBytes(StandardCharsets.UTF_8));
    byte[] pwd= md.digest(input.getBytes(StandardCharsets.UTF_8));
    System.out.println(Base64.encodeBase64URLSafeString(pwd));
}

Answer 1

You can use sha512sum .

cat salt.dat myfile.dat | sha512sum -b

Seems the -b is required for binary input (defaults to text, which can potentially result in different checksums depending on the encoding).