base64 key generator

This article comes from http://my.oschina.net/noahxiao/blog/132277, personal storage use1. BackgroundWhen I use Hibernate to do object mapping, I always use the UUID to master the key. Since Hibernate's UUID needs to occupy 32-bit characters, it

One, des encryption and decryption Package com.itjh.javaUtil; Import java.io.UnsupportedEncodingException; Import java.security.InvalidKeyException; Import java.security.NoSuchAlgorithmException; Import Java.security.SecureRandom; Import

It is important to understand the following for encryption and decryption:The two sides want to communicate, the middle connection may be bugged or even tampered with. The solution is to encrypt the contents of the transmission, using ciphertext to

The example of this paper describes the Base64 encryption, MD5 encryption and SHA1 encryption implemented by JS. Share to everyone for your reference, specific as follows: 1, Base64 encryption The Base64.js file is introduced into the page, and

The main purpose of this article is to realize the digital signature problem of PDF, just as a summary of my learning knowledge.1. Overview of digital Signature AlgorithmThis section mainly refers to: 75007189Digital signature: The private key is

Previous wordsCryptographic modules provide a way to encapsulate security credentials during an HTTP or HTTPS connection. It also provides encapsulation of OpenSSL's hash, HMAC, encryption (cipher), decryption (decipher), signature (sign), and

Asymmetric encryption has been rated as the encryption standard, mainly includes (public key encryption private key decryption, or private key encryption public key decryption) This article mainly explains how to generate the public and private keys

1 sha Encryption: Secure Hash algorithm is mainly applicable to digital signature algorithms (Digital Signature algorithm DSA) defined in the digital signature standard (Digital Signature Standard DSS). For messages that are less than 2^64 bits in

The former concept of KeyStore is the place where the app is signed, and if you check Android KeyStore, the information is how to generate signatures for the app, but the meaning here is different. The Android KeyStore system allows you to store

Chapter 2 asymmetric encryption algorithms-DH and asymmetric encryption algorithms-dh Note: In this section, refer to "advanced encryption algorithms-asymmetric encryption algorithms" in Chapter 2nd of Java encryption and decryption art (version 8th"