Free Chinese Calendar 2024 - Year of the Dragon
Want to know when is the 2024 Chinese New Year day? Look for free Chinese calendars for 2024? Chinese New Year Date for Year 2024 The Dragon 2024 February 10 Saturday Chinese New Year ⇒ Free Chinese Calendar 2025 - Year of the Snake ⇐ Free Chinese Calendar 2023 - Year of the Rabbit ⇑ Chinese New ... 2023-11-28, 128675🔥, 1💬
Illustration of DSA Algorithm: p,q=23,11
This section provides a tutorial example to illustrate how DSA digital signature algorithm works with small prime modulus p=23 and prime divisor q=11. 2023-11-19, 5214🔥, 10💬
Certificate in PEM Format
This section describes what is certificate PEM (Privacy Enhanced Mail) format - A format uses PEM idea to convert a certificate in DER format to a message of printable characters. The conversion uses the Base64 encoding. 2023-11-13, 16504🔥, 7💬
Blowfish - 8-Byte Block Cipher
This chapter provides tutorial examples and notes about Blowfish block cipher. Topics include Blowfish encryption and decryption algorithm; Blowfish sub-key generation schema, Blowfish algorithm implementation in Java. 2023-10-24, 844🔥, 4💬
RSA Public Key Encryption Algorithm
This section describes the RSA public key encryption algorithm. Generating public and private keys used in RSA encryption requires two large prime numbers. 2023-10-16, 250🔥, 2💬
Geometric Introduction to Elliptic Curves
This chapter provides a geometric introduction of elliptic curves and the associated addition operation. Topics includes what is an elliptic curve and its geometric properties; geometric algorithm defining an addition operation; infinity point or identity element; commutativity and associativity of ... 2023-10-11, 714🔥, 2💬
Certificate X.509 Standard and DER/PEM Formats
This chapter provides tutorial notes and example codes on certificate content standard and file formats. Topics include X.509 standard for certificate content; DER encoding for certificate binary file format; PEM encoding for certificate text file format; exchanging certificates in DER and PEM forma... 2023-09-26, 989🔥, 2💬
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. 2023-08-10, 2915🔥, 3💬
tinyec - Python Library for ECC
This chapter provides tutorial notes on 'tinyec' Python library for ECC. Topics include installing 'tinyec'; creating ec.Curve objects, performing point addition and scalar multiplication. 2023-07-05, 1043🔥, 4💬
DES Algorithm Java Implementation
This chapter provides tutorial examples and notes about DES algorithm implementation in Java language. Topics include an example Java implementation of DES encryption and decryption algorithm; test cases of single block cleartext and ciphertext. 2023-06-23, 8169🔥, 18💬
Key Schedule (Sub-Keys Generation) Algorithm
This section describes the Blowfish Key Schedule (Sub-Keys Generation) algorithm. It uses the binary representation of the fractional portion of constant Pi - 3.1415927... as initial values. 2023-06-05, 1703🔥, 3💬
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. 2023-05-03, 8338🔥, 7💬
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. 2023-03-23, 995🔥, 1💬
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. 2023-03-05, 1456🔥, 3💬
Converting Secret Keys to and from Byte Arrays
This section provides a quick introduction of the SecretKeySpec class and the KeySpec interface. They can be used to convert secret keys into byte arrays to store them in external files. 2023-02-22, 19471🔥, 6💬
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. 2023-02-13, 26842🔥, 11💬
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, 3663🔥, 7💬
This is a collection of best and well-known Chinese music works selected by the author. Key words in...
Where to find lucky wedding dates for year 2020 to 2031? Lucky wedding dates for year 2020 to 2031: ...
This section provides a quick summary of the Unicode code point block: 'Miscellaneous Symbols', whic...
This section describes DES (Data Encryption Standard) algorithm - A 16-round Feistel cipher with blo...
科兴生物新冠疫苗的结构和工作机制是什么？ 科兴生物新冠疫苗是由北京科兴生物制品有限公司（S inovacBiotech）研发的COVID...