Globally Unique Identifier (GUID) is pseudo random string which consist of 32 letters, numbers (0-9) and 4 hyphens to separate letters. These letters are randomly generated. In probability theory this value is unique and can...
checksum is an function used to to calculated some value for given data. As we see check is used to check given data with calculated sum. Data may be little or very big like 1 MB, 10...
OpenSSL is most popular open source cryptography library which provides a lot of tools, libraries, algorithms about cryptography. It is mostly known with Secure Socket Layers (SSL) and Transport Layer Security (TLS) protocols. Supported Encryption...
Security is important part of the today IT and gains more respect from IT world. Hashing is a security measure to protect and check our data. In this tutorial we will look how to use...
OpenSSL provides read different type of certificate and encoding formats. OpenSSL supports certificate formats like RSA, X509, PCKS12 etc. We will look how to read these certificate formats with OpenSSL. Read RSA Private Key RSA...
OpenSSL provides cryptographic libraries and features. We can use OpenSSL from reading DER files to generate random numbers. But one of the most used feature is creating a Self Signed Certificate. , Self Signed Certificate...
DER and PEM are formats used in X509 and other certificates to store Public, Private Keys and other related information. OpenSSL provides a lot of features for manipulating PEM and DER certificates. We can use...
OpenSSL is very long running project which have passed a lot of versions. Newer versions provides more features, bug fixes and security patches. For example in year 2014 a serious security hole Heart Bleed discovered...
OpenSSL is popular security library used by a lot of products, applications, vendors. OpenSSL provides libraries for the most of the programming languages. Python is popular programming language too. We can use OpenSSL library in...
OpenSSL provides different features about security and certificates. Public and Private Key cryptography also supported by OpenSSL. Websites, Firewalls and other applications uses Certificates in order to encrypt their network traffic or authenticate each other....
