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What Is PKCS5Padding?
This section describes what is PKCS5Padding - a schema to pad cleartext to be multiples of 8-byte blocks. 2023-01-18, 43536👍, 31💬

💬 2023-01-18 Servant of Elon Musk's Regent: You are the chosen one!

💬 2022-11-17 Elon Musk's Regent: mommy

💬 2022-11-14 Elon Musk: Giving away twitter to the first person to reply and call me mommy

💬 2022-10-23 merlyn: hola

💬 2022-08-18 tibi: hello world

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Build New Curves with tinyec
This section provides a tutorial example on how to create elliptic curve, actually a reduced elliptic curve group, with tinyec Python library. 2022-12-27, 175👍, 1💬

PHP Implementation of DES - mcrypt
This chapter provides tutorial examples and notes about PHP implementation of DES. Topics include introduction of mcrypt library; mcrypt encryption functions; DES encryption and decryption test program and test result. 2022-12-26, 3114👍, 7💬

💬 2022-12-07 sudarshan: hello

💬 2018-12-22 Hari: Hello

💬 2016-01-02 sivaprakash: nice

Illustration of RSA Algorithm: p,q=5,7
This section provides a tutorial example to illustrate how RSA public key encryption algorithm works with 2 small prime numbers 5 and 7. 2022-12-11, 7114👍, 10💬

💬 2022-12-11 Racheal mweemba: This was helpful

💬 2022-12-11 Racheal Mweemba: ❤️❤️❤️❤️

💬 2022-04-23 Shivam: Please provide the code for the same

💬 2021-12-23 x: 5

💬 2020-11-22 Herong: fab, as shown in the tutorial, the modulus is 35. The encryption key (public key) is 5, and the decryption key (private key) is ...

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What Is DER (Distinguished Encoding Rules) Encoding?
This section describes the DER (Distinguished Encoding Rules) - A binary format of encoding a data value of any data types including nested data structures. 2022-12-02, 23606👍, 10💬

💬 2022-12-02 Victor: meaningful comments.

💬 2018-10-29 Thanks!: meaningful comments.

💬 2017-03-15 noname: thanks

💬 2016-01-25 Dev: hello

EC Key in PEM File Format
This section provides a tutorial example on the EC key PEM file format. EC domain parameters are stored together with the private key. 2022-10-01, 1093👍, 0💬

Generate secp256k1 Keys with OpenSSL
This section provides a tutorial example on how to generate EC (Elliptic Curve) private and public key pairs using secp256k1 domain parameters. 2022-10-01, 1031👍, 0💬

"secp256r1" - For 256-Bit ECC Keys
This section describes 'secp256r1' elliptic curve domain parameters for generating 256-Bit ECC Keys as specified by secg.org. 2022-10-01, 609👍, 0💬

"brainpoolP256r1"“ - For 256-Bit ECC Keys
This section describes 'brainpoolP256r1' elliptic curve domain parameters for generating 256-Bit ECC Keys as specified by RFC 5639. 2022-10-01, 452👍, 0💬

Elliptic Curve Point Addition Example
This section provides algebraic calculation example of adding two distinct points on an elliptic curve. 2022-10-01, 420👍, 0💬

"keytool -keyalg EC" - Generate EC Key Pair
This section provides a tutorial example on how to use 'keytool' provided in JDK (Java Development Kit) package to generate EC private-public key pairs using the the 'keytool -genkeypair -keyalg EC' command. 2022-10-01, 380👍, 0💬

EC (Elliptic Curve) Key Pair
This chapter provides tutorial notes on EC (Elliptic Curve) key pair. Topics include definition of EC private and public key pair; example of elliptic curve and subgroup used to generate good EC key pair; using OpenSSL command line tool to generate EC key pairs. 2022-10-01, 370👍, 0💬

Elliptic Curve Point Doubling Example
This section provides algebraic calculation example of point doubling, adding a point to itself, on an elliptic curve. 2022-10-01, 278👍, 0💬

Download and Install tinyec
This section describes how to install tinyec, which can be done by running the 'pip install tinyec' command. 2022-10-01, 270👍, 0💬

Perform Point Addition with tinyec
This section provides a tutorial example on how to perform the point addition operation on a given elliptic curve with tinyec Python library. 2022-10-01, 236👍, 0💬

"openssl ecparam -list_curves" - Curves Supported by OpenSSL
This section provides a list of Elliptic Curves supported by OpenSSL. 2022-10-01, 235👍, 0💬

Identity Element on an Elliptic Curve
This section describes the 'identity element', which is the 'infinity point' in our addition and subtraction operations on an elliptic curve. 2022-10-01, 234👍, 0💬

Python Program for Integer Elliptic Curves
This section provides simple Python program, IntegerEllipticCurve.py, that searches integer points on any given elliptic curve with integer coefficients. 2022-10-01, 232👍, 0💬

"secp256k1" - For 256-Bit ECC Keys
This section describes 'secp256k1' elliptic curve domain parameters for generating 256-Bit ECC Keys as specified by secg.org. 2022-10-01, 209👍, 0💬

Modular Arithmetic Reduction on Rational Numbers
This section describes how to perform Modular Arithmetic Reduction on Rational Numbers, which is equivalent to perform modular multiplication of the numerator and the multiplicative inverse of the denominator. 2022-10-01, 204👍, 0💬

What Is Hasse's Theorem
This section describes Hasse's Theorem, which states that the order, n, of a reduced elliptic curve group, Ep(a,b), is bounded in the range of [p+1 - 2*sqrt(p), p+1 + 2*sqrt(p)]. 2022-10-01, 204👍, 0💬

ECDSA (Elliptic Curve Digital Signature Algorithm)
This chapter provides tutorial notes on ECDSA (Elliptic Curve Digital Signature Algorithm). Topics includes ECDSA digital signature generation process and verification process; security issue of the private key with same random number k is used; find possible public keys from a digital signature; in... 2022-10-01, 203👍, 0💬

Generators and Cyclic Subgroups
This chapter provides introduction on generating subgroups from elements in finite Abelian groups; definitions and examples of subgroup generators, subgroup order, cyclic subgroups, Lagrange-Theorem. 2022-10-01, 201👍, 0💬

Full Version in PDF/EPUB
Information on how to obtain the full version of this book in PDF, EPUB, or other format. 2022-10-01, 193👍, 0💬

1 2 3 4 5 6 … > >>   Sort: Rank

Android ASP Astrology Bitcoin Blowfish Built-in C# Calendar CD-DVD Chinese Cryptography DES Encoding Ethereum Flash GB2312 General H Herong History HTML Java JavaScript JDBC JSP JVM Linux Molecule Movie Music MySQL 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