Tutorial Books:
What Is PKCS5Padding?
This section describes what is PKCS5Padding - a schema to pad cleartext to be multiples of 8-byte blocks. 2022-07-29, 40088👍, 26💬
💬 2022-07-13 itsMeAbhi: Well explained.
💬 2021-08-09 meaningful comment: Let (a,b)=(10,10), what is a+b?
💬 2021-08-07 kane: here forever
First 8336 Hex Digits of PI
This section provides first 8336 hex digits of constant PI, 3.1415927..., needed for Blowfish encryption algorithm. 2022-06-26, 6555👍, 11💬
💬 2019-04-28 Herong: 8336 Hex Digits. Thanks.
💬 2019-04-26 Harry: Do you mean 8336 digits
DES Key Schedule (Round Keys Generation) Algorithm
This section describes DES (Data Encryption Standard) algorithm - A 16-round Feistel cipher with block size of 64 bits. 2022-06-06, 13230👍, 12💬
💬 2022-06-06 hello: <script> alert("Hello! I am an alert box!"); </script>
Elliptic Curve Geometric Properties
This section describes two geometric properties of an elliptic curve: horizontal symmetry and 3 intersections or less with straight lines. 2022-05-15, 111👍, 1💬
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. 2022-05-06, 6217👍, 7💬
💬 2022-04-23 Shivam: Please provide the code for the same
💬 2019-01-21 Herong: someone, why 35 and 5 must be coprime numbers?
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, 106👍, 1💬
💬 2018-12-28 '">alert(2): '"><script>alert(1)</s cript>
💬 2017-09-29 Herong: I don't think it takes the length of bits. But I will double check it.
💬 2017-06-17 Herong: Neil, I will try my best. Thanks for the comment.
💬 2017-06-14 Neil Shrestha-Birtch: It helped me! thanks for keeping this resource up.
PDF Printing Version: Cryptography Tutorials
Information on how to obtain the PDF version of this book for printing. 2021-07-27, 8109👍, 36💬
💬 2018-10-20 Herong: bachi, thanks for sharing your comment.
💬 2018-10-13 bachi: I like how you composed your content. I like how you explain the DES algorithm
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