MessageDigestMessage Digest returning different key after first digest

Here is how I initialize MessageDigest private static MessageDigest messageDigest; public static final String SALT_DO_NOT_CHANGE = “somesalt”; static { try { …

For PBKDF2, using HMAC-SHA256 is more secure than using HMAC-SHA-1?

I’m looking for the proper Java algorithm for password encryption, and I found that Java SDK provides PBKDF2WithHmacSHA1, but not PBKDF2WithHmacSHA256. I heard that HMAC-SHA256 will take more time …