EC Cryptography Tutorials - Herong's Tutorial Examples
This EC (Elliptic Curve) cryptography tutorial book is a collection of notes and sample codes written by the author while he was learning cryptography technologies himself. Topics include rule of chord and point addition on elliptic curves; Abelian groups with additive and multiplicative notations; ... 2019-01-01, 327👍, 1💬
"keytool" Importing Certificates in DER and PEM
This section provides a tutorial example on how to use 'keytool' to import certificates in DER and PEM formats generated by 'OpenSSL' into 'keystore' files. 2018-06-28, 14162👍, 2💬
64-bit RSA Key Validated by RsaKeyValidator.java
This section provides a tutorial example on how a 64-bit RSA key is validated by RsaKeyValidator.java with 3 rounds of encryption and decryption tests. 2018-06-09, 307👍, 2💬
Illustration of DSA Algorithm: p,q=7,3
This section provides a tutorial example to illustrate how DSA digital signature algorithm works with small prime modulus p=7 and prime divisor q=3. 2018-04-24, 2831👍, 5💬
Introduction of DSA (Digital Signature Algorithm)
This chapter provides tutorial notes and example codes on DSA (Digital Signature Algorithm). Topics include introduction of DSA; illustration of DSA key generation, message signing and signature verification; proof of Digital Signature Algorithm. 2018-04-07, 2930👍, 11💬
"OpenSSL" Generating CA's Private Key
This section provides a tutorial example on how to use OpenSSL to generate a RSA private key of 2048 bit long with OpenSSL. This key will be used as the CA's private key and must stored securely in a file with password protection. 2018-02-03, 1111👍, 1💬
"openssl enc" Converting Keys from Binary to PEM
This section provides a tutorial example on how to convert a private and public key pair stored in binary PKCS#8 format into PEM (Privacy Enhanced Mail) format with the 'openssl enc' command. 2018-01-20, 885👍, 2💬
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. 2018-01-20, 1323👍, 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, 853👍, 4💬
What Is SHA1 Message Digest Algorithm?
This section describes what is SHA1 (Secure Hash Algorithm 1) - a message digest algorithm which takes as input a message of arbitrary length and produces as output a 160-bit 'fingerprint'. 2017-12-09, 4725👍, 6💬
How Secure Is RSA Algorithm?
This section discusses the security of RSA public key encryption algorithm. RSA private key is not 100% secure. But if the private key uses larger value of n = p*q, it will take a very long time to crack the private key. 2017-11-10, 881👍, 2💬
MD5 Mesasge Digest Algorithm
This chapter provides tutorial notes and example codes on the MD5 message digest algorithm. Topics include MD5 algorithm overview; using MD5 in Java, PHP, and Perl. 2017-09-10, 766👍, 2💬
Using Certificates in Firefox
This chapter provides tutorial notes and example codes on using certificates in Firefox 18. Topics include why Web browsers need certificates; viewing the certificate from an https Web server; exporting a certificate from Firefox 18 to a certificate file; importing a CA certificate into Firefox 18. 2017-08-31, 2042👍, 1💬
Cryptography Tutorials - Herong's Tutorial Examples
This cryptography tutorial book is a collection of notes and sample codes written by the author while he was learning cryptography technologies himself. Topics include AES, blowfish, certificate, cipher, decryption, DES, digest, encryption, keytool, MD5, OpenSSL, PEM, PKCS#8, PKCS#12, private key, p... 2017-08-05, 24310👍, 4💬
"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. 2017-05-27, 33139👍, 5💬
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. 2017-05-10, 277👍, 1💬
DsaSignatureGenerator.java - Generating DSA Digital Signature
This section provides tutorial example on how to generate a digital signature for a message file with a DSA private key using the SHA1withDSA algorithm. 2017-03-13, 4024👍, 5💬
Viewing Certificate Path
This section provides a tutorial example on how to view certificate path when visiting an 'https' Web site in IE 9. The top certificate in a certificate path is the CA certificate, which is trusted automatically. 2017-01-31, 684👍, 1💬
This free book contains Herong's notes and tutorial examples on Chinese GB2312 character set. It pro...
This section provides a tutorial example on how to create and delete a program service with 'sc.exe'...
中國年歷 - 2017 年年歷 - 雞年
This section provides a quick description of the Services Console and a tutorial example on how to l...
This section describes differences between a SOAP 1.1 request and SOAP 1.2 request for GetSpeech Web...