ruby md5 digest

I learned about MD5 encryption some time ago.Algorithm, You can write it yourselfProgramI have developed a tool for verifying the md5encryption by downloading files on the Internet. Here I will contribute the source code, and I will introduce some of this tool.CodeSo I sorted it out and used it as a document for my future study. 1. MD5 (Message Digest) Message

MD5 is message-digest algorithm 5 (Information-Digest algorithm 5), which is used to ensure complete and consistent information transmission. is one of the widely used hashing algorithms (also translated digest algorithm, hashing algorithm)The MD5 algorithm has the following

Briefly:Message-digest algorithm 5 (Information-Digest algorithm). Often said "MD5 encryption", is it → information-digest algorithm.MD5, in fact, is an algorithm. You can put a string, or a file, or a compressed package, after executing MD5, you can generate a fixed length

The messagedigestforfile class demonstrates the generation of an md5w digest for a file. the MD5 Digest is displayed in hex using the hex class from the apachesw commonssw codec library. the call to messagedigest. getinstance ("MD5") specifies to use the MD5Algorithm. Other common algorithms are md2 and Sha. The getdig

Messages Digest 5 (Message digest algorithm) is a hash function widely used in the field of computer security to provide integrity protection for messages.MD5 's role is to allow bulk information to be "compressed" into a confidential format before signing a private key with a digital signature software, which is to transform an arbitrary-length byte string into a long hexadecimal string.Features of the

Abstract stream is a type of stream filtering. It can be used to read and write the digest information (MD5/Sha) of the stream ). When packaging a stream using a digest stream, an additional messagedigest object needs to be passed, Messagedigest MD = messagedigest. getinstance ("MD5"); Digestinputstream dis=NewDigest

In security-related applications, we usually use digital signature technology, and most of them are implemented through MD5 or sha1 information digest algorithms, series 60 2nd and earlier versions have not published this API. We can only transplant it according to the C Language Algorithm in the RFC document. Of course, it is not difficult to transplant it. the release of Symbian OS V9 makes things easier.

/**** MD5 (message-digest Algorithm)* http://www.webtoolkit.info/***/ var MD5 = function (string) { function Rotateleft (lValue, ishiftbits) {return (lvalue} function addunsigned (lx,ly) {var lx4,ly4,lx8,ly8,lresult;lX8 = (lX 0x80000000);lY8 = (lY 0x80000000);lX4 = (lX 0x40000000);lY4 = (lY 0x40000000);LResult = (lX 0x3fffffff) + (lY 0x3fffffff);If (lX4 lY

Convert 32 to MD5 Digest string to 128-bit binary:1 /// 2 ///turn a string into binary3 /// 4 /// Source String5 /// Binary string6 Internal Static stringConvertstringtobinary (strings)7 {8 if(S.isnullorwhitespace ())9 {Ten Throw NewArgumentNullException ("the source string is empty", s); One } A