Useful tips for everyday
How do I change my GPG passphrase? To change your passphrase: Enter: gpg –edit-key key-id. At the gpg prompt enter: passwd. Enter the current passphrase…
How is x509 certificate signed? 509 certificates work and by how they are issued. The key usage architecture lets certificates verify that: A public key…
How does man in the middle work in SSH? In the SSH protocol, the traditional method is to use public keys. Most SSH clients will…
What is $2 y hash? The hashes start with a $2y$ identifier, this indicates the hash has been created using BCrypt ( $2*$ usually indicates…
How to specify parameter in sqlmap to test? When things get harder i use sqlmap to exploit and later on study the requests it made…
How do you store sensitive personal data? Sensitive personal data should be held separately from other personal data, preferably in a locked drawer or filing…
Where should refresh tokens be stored? Access token and refresh token shouldn’t be stored in the local/session storage, because they are not a place for…
What are different types of certificates? Types of Certificate Programs Business Certificates. Health Care Certificates. Technology Certificates. Criminal Justice Certificates. Arts and Design Certificates. Education…
How does arpack work? Introduction. ARPACK 1 is a Fortran package which provides routines for quickly finding a few eigenvalues/eigenvectors of large sparse matrices. In…
How do you find the degeneracy of eigenvalues? An eigenvalue is said to be degenerate if Put another way, if there are two or more…