Ethereum Tutorials - Herong's Tutorial Notes
This free book is a collection of tutorials and notes on Ethereum and blockchain. Topics include Blockchain, Ethereum, Cryptocurrency, Mining, MetaMask, Wallet. 2018-05-11, 314👍, 2💬
HTTPS Communication Data Encryption
This section describes the HTTPS communication data encryption process - Browser generates an encryption key, encrypts it using server public key and sends it to the server; Browser encrypts data with the encryption key; Server encrypts return data with the same encryption key. 2016-04-18, 140👍, 1💬
Variables, References, and Constants
This chapter provides tutorial notes and example codes on PHP variables, references, and constants. Topics include how to name variables; assigning data values to variables; creating the reference of a variable; using variable variable names; using string expressions as variable names; defining cons... 2016-04-15, 374👍, 1💬
"openssl pkcs8" Converting Keys to PKCS#8 Format
This section provides a tutorial example on how to convert a private key file from the traditional format into PKCS#8 format using the 'openssl pkcs8' command. Keys can still be encoded with DER or PEM with or without DES encryption in PKCS#8 format. 2016-04-12, 4412👍, 1💬
Certificate X.509 Standard and DER/PEM Formats
This chapter provides tutorial notes and example codes on certificate content standard and file formats. Topics include X.509 standard for certificate content; DER encoding for certificate binary file format; PEM encoding for certificate text file format; exchanging certificates in DER and PEM forma... 2016-04-10, 130👍, 1💬
Summary - Migrating "keystore" Keys to "OpenSSL"
This section describes high level steps on how to migrate a private key generated in a JKS (Java KeyStore) file to an 'OpenSSL' key file. The key step is to convert a JKS file into a PKCS#12 file with 'keytool'. 2016-04-09, 102👍, 1💬
Using MySQL Noinstall Package
This section provides a tutorial example on how to download and install MySQL 5.7.10 noinstall package on a Windows system. Configuration is required to start MySQL 5.7.10 server. 2016-04-08, 3109👍, 5💬
WSF - Windows Script File XML Format
This section describes the WSF (Windows Script File) XML format. Multiple script jobs with different scripting language can be defined in a single WSF file. 2016-04-08, 1487👍, 2💬
SQL Server CLOB (Character Large Object) - TEXT
This chapter provides tutorial notes on CLOB (Character Large Object) data types, TEXT, with SQL Server JDBC Driver. Topics include creating tables to store CLOB values in SQL Server server; inserting CLOB values with direct SQL INSERT statements, or PreparedStatement with setString(), setCharacterS... 2016-04-07, 4346👍, 1💬
"sc.exe" - A Command Line Tool to Manage Services
This section describes the Service Controller (SC) command line tool, sc.exe, which can be used to add new services, or to query, modify, start, stop and delete existing services. 2016-04-06, 3107👍, 1💬
WSDL 2.0 Document Examples with SOAP Binding
This chapter provides WSDL 2.0 document examples with SOAP binding. Topics include Hello example; Reservation example with Multipart message exchange pattern examples; GetStockPrice with RPC message exchange pattern 2016-04-05, 132👍, 1💬
"keytool" Importing Certificates in DER and PEM
This section provides a tutorial example on how to use 'keytool' to import certificates in DER and PEM formats generated by 'OpenSSL' into 'keystore' files. 2016-04-01, 11375👍, 1💬
Certificate in PEM Format
This section describes what is certificate PEM (Privacy Enhanced Mail) format - A format uses PEM idea to convert a certificate in DER format to a message of printable characters. The conversion uses the Base64 encoding. 2016-03-30, 2860👍, 2💬
Insertion Sort Algorithm and Implementation
This chapter provides tutorial notes and codes on the Insertion Sort algorithm. Topics include introduction of the Insertion Sort algorithm, Java implementation and performance of the Insertion Sort algorithm. 2016-03-30, 257👍, 0💬
SSL Client Authentication
This chapter provides tutorial notes and example codes on SSL client authentication. Topics include introduction to SSL client authentication; creating server and client certificates; writing server and client test programs; running SSL client authentication tests. 2016-03-30, 192👍, 1💬
This section provides a tutorial example on how to a simple Java Swing program. SwingHello.java is m...
This section describes what is PKCS5Padding - a schema to pad cleartext to be multiples of 8-byte bl...
This section describes how to connect to a DSN (Data Source Name) with JDBC-ODBC Bridge.
This section provides a tutorial example on how to convert XML documents into pretty print format us...
This free book is an excellent tutorial book for beginners. It is a collection of notes and sample c...