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try {
MessageDigest digest = MessageDigest.getInstance("SHA-512");
byte[] output = digest.digest(password);
digest.update(salt);
digest.update(output);
return new BigInteger(1, digest.digest());
} catch (NoSuchAlgorithmException e) {
throw new UnsupportedOperationException(e);
}
But I got Exception in thread "main" java.security.NoSuchAlgorithmException: SHA_512 MessageDigest not available error
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Conclusion. The SHA-512 hashing algorithm is currently one of the best and secured hashing algorithms after hashes like MD5 and SHA-1 has been broken down. Due to their complicated nature it is not well accepted and SHA-256 is a general standard, but the industry is slowing moving towards this hashing algorithm.
The reason why SHA-512 is faster than SHA-256 on 64-bit machines is that has 37.5% less rounds per byte (80 rounds operating on 128 byte blocks) compared to SHA- 256 (64 rounds operating on 64 byte blocks), where the operations use 64-bit integer arithmetic.
SHA-512, or Secure Hash Algorithm 512, is a hashing algorithm used to convert text of any length into a fixed-size string. Each output produces a SHA-512 length of 512 bits (64 bytes). This algorithm is commonly used for email addresses hashing, password hashing, and digital record verification.
Since SHA512 is a hash algorithm based on non-linear functions, it is designed to prevent any decryption method and so is made to be uncrackable.
The following are the standard hashing algorithms provided by the Java MessageDigest:
You may want to verify the name you are supplying to the factory method.
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