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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, ∼4358🔥, 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, ∼1627🔥, 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, ∼365🔥, 1💬
References
List of reference materials used in this book. 2019-06-30, ∼506🔥, 1💬
"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, ∼325🔥, 1💬
What Is Block Cipher?
This section describes what is block cipher - An encryption scheme in which 'the clear text is broken up into blocks of fixed length, and encrypted one block at a time'. 2019-04-03, ∼606🔥, 2💬
Example Vector of AES Encryption
An example vector of AES-128 encryption is presented. Round keys and state values of all 11 rounds are included to help users to verify their AES implementation. 2019-02-24, ∼1616🔥, 1💬
"keytool" Exporting Certificates in DER and PEM
This section provides a tutorial example on how to export certificates in DER and PEM format using the 'keytool -exportcert' command. 2019-02-20, ≈53🔥, 5💬
💬 2018-09-25 Srinivas: After generating certificate, there are some special characters appended.
Cryptography Terminology
This section provides descriptions on some commonly used cryptography terminologies 2019-02-18, ∼3447🔥, 2💬
💬 2019-02-18 Hh: <body bgcolor="red">
💬 2015-10-24 dexter aparicio: this site is my favorite reference on cryptography topics
AES Key Schedule Example
An example of the AES key schedule is provided to illustrate how 11 round keys get calculate from a given 128-bit cipher key. 2019-02-18, ∼5264🔥, 1💬
💬 2018-12-04 Gowtham: Great & Layman Terms
💬 2018-09-12 Onkar D: very good summary about SHA1
💬 2018-08-31 Munikumar: Great...
💬 2017-08-24 Superman: <script>alert("xss");< /script>
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, ∼383🔥, 2💬
💬 2018-11-10 Herong: Falle, try to use whois.icann.org to get more information about that website.
Java Implementation of DES - Test Cases
This section provides two test cases for the Java implementation of DES algorithm, CipherDES.java. 2018-03-30, ∼437🔥, 2💬
OpenSSL Introduction and Installation
This chapter provides tutorial notes and example codes on OpenSSL. Topics include introduction of OpenSSL; installing OpenSSL on Windows systems. 2017-12-24, ∼1492🔥, 4💬
💬 2017-12-09 Herong: See the next tutorial: SHA1 Message Digest Algorithm Overview .
💬 2017-12-04 V: where can we find sha-1 formula ?
💬 2016-01-16 raza: i am raza see you latter
💬 2015-10-09 Ash: Please can u explain clearly..I dint understood
DSA 512-bit and 1024-bit Key Pair Examples
This section provides 2 DSA key pair examples, 512-bit and 1024-bit, using DsaKeyGenerator.java. 2017-11-08, ∼1522🔥, 1💬
Installing OpenSSL on Windows
This section provides a tutorial example on how to install OpenSSL on a Windows system. 2017-10-29, ≈51🔥, 18💬
💬 2017-10-29 Max: Te possino! How I obtain the .o, .h files to use like include in my .c mail file?
💬 2017-02-03 Jim: Now run along...
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