SHA instances aren't disposed

AFAIU, an instance of SHA256, SHA384 or SHA512 should be disposed after use since it implements IDisposable. E.g., in the documentation they wrap the SHA-related code with using statement. I guess the same should be done here:

private static byte[] EnhancedHash(byte[] inputBytes, HashType hashType)
{
    switch (hashType)
    {
        case HashType.SHA256:
            inputBytes = SafeUTF8.GetBytes(Convert.ToBase64String(SHA256.Create().ComputeHash(inputBytes)));
            break;
        case HashType.SHA384:
            inputBytes = SafeUTF8.GetBytes(Convert.ToBase64String(SHA384.Create().ComputeHash(inputBytes)));
            break;
        case HashType.SHA512:
            inputBytes = SafeUTF8.GetBytes(Convert.ToBase64String(SHA512.Create().ComputeHash(inputBytes)));
            break;
        case HashType.Legacy384:
            inputBytes = SHA384.Create().ComputeHash(inputBytes);
            break;
        default:
            throw new ArgumentOutOfRangeException(nameof(hashType), hashType, null);
    }

    return inputBytes;
}

[ChrisMcKee]

Tis in master

[andreimilto]

@ChrisMcKee, 👍