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EC Cryptography in Java
This chapter provides tutorial notes on generating EC (Elliptic Curve) keys with Java technology. Topics covered include using 'keytool' command to generate EC private-public key pairs; selecting different name elliptic curves or key sizes; writing Java program to generate EC keys. 2022-10-01, 361🔥, 0💬

Create EC Public Key File
This section provides a tutorial example on how to extract the public key out of an EC private key file with the 'openssl ec -pubout' command. 2022-10-01, 360🔥, 0💬

What Is an Elliptic Curve?
This section describes what is elliptic curve - A set of 2 dimensional points of (x, y) that satisfy the y*y = x*x*x + a*x + b equation with given values of a and b. 2022-05-15, 359🔥, 1💬

Abelian Group on Elliptic Curve
This section demonstrates that an Abelian Group can be defined with all points on an elliptic curve with the 'rule of chord' operation. 2022-03-02, 357🔥, 1💬

Cipher - Secret Key Encryption and Decryption
This chapter provides tutorial notes and example codes on the cipher process. Topics include the cipher process - data encryption and decryption; the cipher class, javax.crypto.Cipher; the cipher sample program and test results with Blowfish and DES encryption algorithms. 2015-10-13, 355🔥, 1💬

"openssl genrsa" Generating Private Key
This section provides a tutorial example on how to generate a RSA private key with the 'openssl genrsa' command. The key file can be then converted to DER or PEM encoding with or without DES encryption. 2022-10-04, 350🔥, 0💬

Same Point Addition on an Elliptic Curve
This section describes how to perform the addition operation of a point P to the same point P on an elliptic curve. In this case, we will draw a straight line that passes P and tangent to the curve to find -R. 2022-10-01, 342🔥, 0💬

Archived: Visiting "https" Web Site with Firefox 3
This section describes how Firefox 3 shows a lock icon when you visit an 'https' Web site to provide you more security related information. 2018-11-10, 341🔥, 2💬

💬 2018-11-10 Herong: Falle, try to use whois.icann.org to get more information about that website.

💬 2018-11-10 Falle: Thanks for your help . I couldn't access full information about cardtopia.org a website that scammed me of apple gift cards wort...

"keytool" Viewing Certificates in DER and PEM
This section provides a tutorial example on how to use 'keytool' to view certificates in DER and PEM formats generated by 'OpenSSL'. 2022-10-04, 330🔥, 0💬

Blowfish Secret Key Encryption Tests
This section provides the test result of Blowfish secret key encryption and decryption using the javax.crypto.Cipher class. 2021-10-16, 326🔥, 1💬

💬 2021-10-16 Mr.ostin: Okay

Abelian Group and Elliptic Curves
This chapter provides an introduction to Abelian Group, which can be expressed in the multiplicative notation or the additive notation. An Abelian Group and be defined on an elliptic curve using the 'rule of chord' operation. 2022-10-01, 316🔥, 0💬

mcrypt Library for PHP
This section describes the mcrypt library - encryption extension for PHP. mcrypt supports DES and many other encryption algorithms. 2019-12-19, 308🔥, 1💬

RSA Public Key Encryption Algorithm
This section describes the RSA public key encryption algorithm. Generating public and private keys used in RSA encryption requires two large prime numbers. 2023-10-16, 300🔥, 2💬

💬 2023-10-16 subbarao: thanks for giving wonderful knowledge

Examples of Discrete Logarithm Problem (DLP)
This section describes the Discrete Logarithm Problem (DLP) in several Abelian Group examples, including elliptic curve groups. 2022-10-01, 300🔥, 0💬

"keytool -printcert" Printing Certificate Details
This section provides a tutorial example on how to print details of the certificate exported by 'keytool -exportcert' command using the 'keytool -printcert' command. 2022-10-04, 297🔥, 0💬

Algebraic Introduction to Elliptic Curves
This chapter provides an algebraic introduction of addition operations on elliptic curves. Algebraic solutions are provided to calculate addition operations by dividing the problem into 4 cases: two symmetric points, one infinity point, two identical points, and two distinct points. 2022-10-01, 295🔥, 0💬

"sect283r1" - For 256-Bit ECC Keys
This section describes 'sect283r1' elliptic curve domain parameters for generating 256-Bit ECC Keys as specified by secg.org. 2022-10-01, 295🔥, 0💬

Addition Operation on an Elliptic Curve
This section describes the addition operation on an elliptic curve geometrically. The addition of points P and Q on an elliptic curve is a point R on the curve, which is the symmetrical point of -R, which is the third intersection of the curve and the straight line passing through P and Q. 2022-10-01, 286🔥, 0💬

Modular Addition of 10 - Abelian Group
This section provides an Abelian Group using the modular arithmetic addition of 10 (integer addition operation followed by a modular reduction of 10). 2022-10-01, 277🔥, 0💬

Is EC Private Key Secure
This section discusses the question of: how secure is the EC (Elliptic Curve) key pair? Or how hard is it someone to figure out the private key from a given EC public key? 2022-10-01, 272🔥, 0💬

"keytool" Generating Maria's Private Key
This section provides a tutorial example on how to use 'keytool' to generate a pair of private key and public key. 2019-05-08, 271🔥, 1💬

Finite Fields
This chapter provides an introduction to Finite Fields. Topics covered include definition of finite fields; examples of finite fields: prime fields GF(p), binary fields GF(2^n) and polynomial fields GF(p^n); field order as the number of elements; field characteristic p is the least positive integer ... 2022-10-01, 264🔥, 0💬

Discrete Logarithm Problem (DLP)
This chapter provides an introduction to the Discrete Logarithm Problem (DLP), which is the reverse operation of the exponentiation operation in Abelian Groups in multiplicative notation, or the scalar multiplication in additive notation. The DLP in many Abelian Groups is easy to solve. But the DLP ... 2022-10-01, 262🔥, 0💬

Elliptic Curve Subgroups
This chapter provides notes on subgroup generation from reduced elliptic curve groups, Ep(a,b). Python programs are provided to perform point addition, scalar multiplication, and subgroup generation. 2022-10-01, 262🔥, 0💬

<< < … 2 3 4 5 6 7 8 9 10 11 12 … > >>   ∑:342  Sort:Date

Android ASP Astrology Big5 Bitcoin Blowfish Built-in C# Calendar CD-DVD Cheminformatics Chinese Cryptography DES Email Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL Neural Network Perl PHP Physics PKI Publication Python Reference REST SOAP Sorting Swing TV Series UML Unicode VBScript Web Web-Services Windows WSDL XML XMLPad XSD XSL-FO