Tutorial Books:
💬 2020-06-22 Filip: Very helpful, thanks!
💬 2020-02-24 Herong: Sanjay, hash value of 3 was used as a simple example, not calculated.
💬 2021-01-08 Herong: Abigail, you are welcome!
💬 2021-01-06 Abigail: Thank you so much, just what I needed for my university assignment!
💬 2020-12-05 Herong: Donghua, h is any integer you pick to help generating g.
💬 2020-12-04 Donghua: What's the h means in step three. How to calculate it?
What Is PKCS5Padding?
This section describes what is PKCS5Padding - a schema to pad cleartext to be multiples of 8-byte blocks. 2021-01-07, 29320👍, 10💬
💬 2021-01-07 Your Name: Please write meaningful comments. Thanks! ☺
💬 2020-11-04 perico: otra vez va a salir trump??
💬 2016-04-04 ankit: this is me.
💬 2019-04-22 xyz: $9$RTHhSlWL7VsguO7dbw4oiHqf6CuOIRhyl K4JGDq.TQF/OIcyeLXNbsPTz3CAW8X
💬 2018-10-16 Marco: mi chiedo che cosa potrebbe essere tutto questo
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. 2020-11-22, 2867👍, 4💬
💬 2019-01-21 Herong: someone, why 35 and 5 must be coprime numbers?
💬 2018-12-13 syed zia ur rehman: i realy like your link
💬 2017-10-09 aa: thanks, but where i can find DES decryption
💬 2020-10-18 Herong: donjo, there is no real applications that use the ECB mode.
💬 2020-10-16 donjo dumdum: What is application of ECB mode operation
"OpenSSL" Generating Certificates in DER and PEM
This section provides a tutorial example on how to generate certificates in DER and PEM formats using 'OpenSSL'. 2020-09-09, 1191👍, 2💬
Visiting a "https" Web Site with Chrome
This section describes how Google Chrome 24 shows a lock icon when you visit an 'https' Web site to provide you more security related information. 2020-07-02, 363👍, 2💬
About This Book: EC Cryptography Tutorials
This section provides some detailed information about this book - EC Cryptography Tutorials - Herong's Tutorial Examples. 2020-06-23, 148👍, 1💬
💬 2020-06-04 ben: How are you?
💬 2018-04-07 Submit Your Comment: Please write meaningful comments. Thanks! ☺
DES Decryption Algorithm
This section describes DES decryption algorithm - identical to the encryption algorithm step by step in the same order, only with the subkeys applied in the reverse order. 2020-05-19, 3751👍, 4💬
💬 2020-05-19 Nick: test comment
💬 2019-06-17 bIPFaV0PLbO9qrDgn+p43A==: bIPFaV0PLbO9qrDgn+p43A==
💬 2017-12-16 Herong: deepak, is this a encrypted comment?
💬 2017-12-11 deepak: 9bc94bbaf6d380eb8f8c6548b2cf6343ccef 5978768e3d69b796d6ef0839172b
What Is a Digital Signature?
This section describes what is a digital signature and what is the process of generating and verifying digital signature from a message. 2020-02-23, 3329👍, 4💬
💬 2020-02-23 Herong: Sanjay, you are welcome!
DESSubkeysTest.java - DES Key Schedule Algorithm Illustration
This section provides a tutorial Java program, DESSubkeysTest.java, to illustrate how DES key schedule algorithm works. 2020-02-10, 1040👍, 3💬
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, 114👍, 1💬
"OpenSSL" Viewing Certificates in DER and PEM
This section provides a tutorial example on how to use 'OpenSSL' to view certificates in DER and PEM formats generated by the 'keytool -exportcert' command. 2019-10-05, 43990👍, 7💬
💬 2019-10-05 Herong: Fatin, what are you getting from the output?
💬 2019-09-27 Fatin: Please help me, i cannot get it that way
💬 2017-05-27 Herong: Yes, asn1parse is a nice tool. I will add some examples later.
💬 2017-05-23 poshak: MIIC8DCCAIGgAwIBAgIJAM/+E5HIKoWGMAoG ...
💬 2017-05-23 Herong: Poshak, do you need any help with your certificate?
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