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What is the difference between a cer, pvk, and pfx file?
...2 == "PKCS12"
fully encrypted
.pem == .cer == .cert == "PEM"
base-64 (string) encoded X509 cert (binary) with a header and footer
base-64 is basically just a string of "A-Za-z0-9+/" used to represent 0-63, 6 bits of binary at a time, in sequence, sometimes with 1 or 2 "=" characters at the ve...
“Too many values to unpack” Exception
...no Borini, I am getting also similar error but in my case, I am creating a string as obj='{"vendorId": "' + vID +'", "vendorName" :"'+vName+'", "addedDate" : "'+vAddedDate+'","usersList" : "'+ usersList + '," status" : "'+str(vStatus)+'","edit"'+edit+'"}'; although all the values are string, it give...
What does @hide mean in the Android source code?
...anager.java uses @hide:
/** @hide */
public static int checkUidPermission(String permission, int uid) {
try {
return AppGlobals.getPackageManager()
.checkUidPermission(permission, uid);
} catch (RemoteException e) {
// Should never happen, but if it does... d...
The JPA hashCode() / equals() dilemma
...lds for business ID instead, but generally that's not the case
private String screenName;
private String email;
// I don't put UUID generation in constructor for performance reasons.
// I call setUuid() when I create a new entity
public User() {
}
// This method is onl...
Flask-SQLalchemy update a row's information
...:
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(80), unique=True)
data = db.Column(db.PickleType())
def __init__(self, name, data):
self.name = name
self.data = data
def __repr__(self):
return '<User %r>' % self.username
...
demystify Flask app.secret_key
... computer. The secret plus the data-to-sign are used to create a signature string, a hard-to-recreate value using a cryptographic hashing algorithm; only if you have the exact same secret and the original data can you recreate this value, letting Flask detect if anything has been altered without per...
Predicate in Java
... a given input. For example, a RegexPredicate might implement Predicate<String>, and return true for any string that matches its given regular expression.
This is essentially an OOP abstraction for a boolean test.
For example, you may have a helper method like this:
static boolean isEven(...
Build the full path filename in Python
...uild the file path from a directory name, base filename, and a file format string?
4 Answers
...
Why do we need a pure virtual destructor in C++?
...meter(const N_Configuration::Parameter& aParam);
std::map<std::string, std::string> m_Parameters;
};
struct NumericsParams : IParams
{
NumericsParams(const ModelConfiguration& aNumericsConf);
virtual ~NumericsParams();
double dt() const;
double ti() const;
do...
In SQL Server, when should you use GO and when should you use semi-colon ;?
...terminator. In another DBMS I have seen the ability to set the termination string. For example, you might specify that statements end with two pipe characters ||. You could then issue CREATE PROCEDURE ... much SQL ending in ; ... || and the double pipe ends the CREATE PROCEDURE statement. So my ques...