Source author Wang HuiChapter 4 Basic Knowledge
1.1. Single-key password systemThe single-key cryptography system is a traditional encryption algorithm, which means that the sender and receiver of the information use the same key for encryption and
Recently researched the ability to sign in on an iOS phone. The SHA1 algorithm is used because of encryption. The net also did not find the direct example, the final reference StackOverflow on the big God, completed the encryption
1.MD5 algorithmNon-reversible128-bit or 64-bit string, byte digit length is 16 and 8, the general expression is to use the 16 binary to represent, 1 byte is converted to 2 16bit, representing the high status, so the generated string is 16 bit or 32
usually, the encryption algorithm used is simple and efficient, the key is short, the encryption and decryption speed is fast, the decoding is extremely difficult. This article describes the use of Md5/sha1,dsa,desede/des,diffie-hellman.
The
Objective
In Android development, the SHA1 certificate fingerprint is often acquired. For example: When you embed a gold map, you need to use this stuff. This is directly available in eclipse, but is not provided directly in the Android studio and
Java open-source jar packages
Turn: http://blog.csdn.net/kevingao/article/details/8125683
Activation ~ Jar packages related to javaMail should be added to lib together with mail. jar (mail. jar and activation. jar) When javaMail is used. The jar
Android signature mechanism-Detailed description of the signature processI. Preface
After a long time, the hands without writing articles were a little uncomfortable. Today is Christmas, or you have to go to work. A few days ago, a colleague asked
activation~ JavaMail-related jar packages, use javamail should be joined to the Lib with Mail.jar (Mail.jar and Activation.jar), specifically responsible for mail data sources and types.Apacheactivemq~apache, the most popular and powerful open
Ext.: http://blog.csdn.net/kevingao/article/details/8125683activation~ JavaMail-related jar packages, use javamail should be joined to the Lib with Mail.jar (Mail.jar and Activation.jar), specifically responsible for mail data sources and
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.