rot cipher

When Discuz registers, the password is encrypted according to a rule. Like my code is 123456. Copy Code code as follows: echo MD5 ("123456"); Will output: Copy Code code as follows: e10adc3949ba59abbe56e057

Emma 701G User name: admin Password: admin User name: Szim Password: Szim Emma 701H User name: admin password: epicrouter ADSL Router User name: anonymous password: 12345 Huawei MT800 User name: admin Password: admin Home Gateway Username: User

Save a template #include #include #include #include #include #define SF scanf #define PF printf using namespace std; typedef long Long LL; const int MAXN = 200000; string S; int sa[maxn+10], rank[maxn+10], tmp[maxn+10], top[maxn+10]; int

Switches and routers need to have certain security, that is, to timely configure a reasonable password, then if the password forgotten how to do? I have encountered this time, due to job transfer, the former network administrator left the department,

Yes, garbage reads. The is a two-dimensional hash and then sorts the number of people to find. #include #include #include #include using namespace std; #define ULL unsigned long long #define N 1010 #define K1 11113 #define K2 11117 Inline int

tree.When both left and right subtrees are involved, it is only necessary to query the maximal difference and the maximum value separately in the Saozi tree, and the answer is the maximum value between the maximum and the maximum difference. Code #include 1) #define TRC (k) (K 1|1) usingnamespaceStd;constintMAXN =800100, root =1, nil =0;intTMAX[MAXN], TMIN[MAXN], ANSL[MAXN], ANSR[MAXN], LC[MAXN], RC[MAXN];intN, M, A[maxn >>2];void Update (intk) {Tmax[k] =Max(TMAX[TLC (k)], TMAX[TRC (k)]); TM

type of comments that I can put in your Java Code:javadoc comments (also called documentation comments) a ND implementation comments. Javadoc comments can is extracted by the Javadoc tool to produce API documentation. Implementation comments are those comments that explain the and why of the code. Use the following guidelines for commenting your Java code: Use Javadoc comments wherever they are allowed (in classes and methods at minimum). Use blocks comments rather than end-of-line/trailing c

to think of the balance of the tree, let's take this problem practice for a long time do not write splay bar.For a and S commands, we do not use tags, but instead directly accumulate with a variable w (can be positive);At the same time, when the effect of the S command is accumulated, at this time the wages plus w still less than Min's staff will leave, should find the first salary is not less than min-w employees, put him splay to root, then its left subtree is all leave employees, at this tim

annotation. Javadoc annotations can be decompressed by javadoc tools to create an API document. The comments executed are comments that explain the purpose and method of the Code. Use the following guidelines when commenting on your Java code: Use javadoc annotations as much as possible (to minimize the number of classes and methods ).Use block comments more and less // comments unless otherwise specified, such as variable DeclarationRemember: good comments are helpful, and bad comments are tro

Annotations: javadoc annotation (also known as document annotation) and execution annotation. Javadoc annotations can be decompressed by javadoc tools to create an API document. The comments executed are comments that explain the purpose and method of the Code. Use the following guidelines when commenting on your Java code: Use javadoc annotations as much as possible (to minimize the number of classes and methods ). Use block comments more and less // comments unless otherwise specified, su

two kinds of annotations: Javadoc annotations (also known as document annotations) and executive comments. Javadoc annotations can be decompressed by the Javadoc tool to create an API document. Execution comments are comments that explain the purpose and manner of the Code. When commenting on your Java code, use the following guidelines: Use Javadoc annotations as much as possible (on classes and methods to minimize them).Use block annotation, less use//annotation, unless some special case, suc

SED, awk tool enables text substitution and outputs the replaced text to the screenBoth SED and awk are streaming editors that operate on the lines of the document. SED is often used to replace operations.The text content of the sample, the following actions are based on this text.[email protected] ~]# cat Test.txt Rot:x:0:0:rot:/rot:/bin/bashroot:x:0:0:root:/root:/bin/bashdaemon:x:2:2:daemon :/sbin:/sbin/n

Linux Regular Expression sed details Sed and awk tools can replace text and output the replaced text to the screen.Sed and awk are both stream editors that operate on the lines of documents. Sed is usually used to replace an operation. The text content of the example. follow these steps.[Root @ bkjia ~] # Cat test.txtRot: x: 0: 0: rot:/bin/bashRoot: x: 0: 0: root:/bin/bashDaemon: x: 2: 2: daemon:/sbin/nologinRooooot: x: 0: 0/roooooot:/bin/bash11111111

);} public static void inithmac () {// string STR = "security programming technology _ encryption and decryption"; system. out. println ("plaintext:" + Str); HMAC = new HMAC (); byte [] certifycode = HMAC. createencryptor (STR); system. out. println ("ciphertext:" + new string (certifycode ));}} AES: Package COM. joye3g. ed; import Java. security. nosuchalgorithmexception; import Java. security. security; import javax. crypto. cipher; import javax. cr

= new fileinputstream (keyf ); // Read in the bytesInt offset = 0;Int numread = 0; While (offset Offset + = numread;}Deskeyspec DKS = new deskeyspec (bytes );Secretkeyfactory keyfactory = secretkeyfactory. getinstance ("des ");Secretkey key = keyfactory. generatesecret (DKS ); Return key;} To encrypt a file, the operation on the file should be in the form of a stream. The encrypted data is a binary stream, which may not be mapped to any encoded string, therefore, the encrypted byte data should

memory where the high byte is discharged, and the low byte is discharged to the high address of the memory.For example, the representation of the number 0x12 34 56 78 in the memory is as follows: 1) big end mode: Low address ---------------> high address 0x12 | 0x34 | 0x56 | 0x78 2) Small End mode: low address ----------------> high address 0x78 | 0x56 | 0x34 | 0x12 #if ENDIAN_BIG == 1# define HASH_LITTLE_ENDIAN 0# define HASH_BIG_ENDIAN 1#else# if ENDIAN_LITTLE == 1# define HASH_LITTLE_ENDIAN

Information Encryption and information encryption technology There are various encryption methods for information. We have introduced a self-designed encryption method. If you are interested, you can enjoy it. Thank you for your advice. Today, we will introduce the symmetric encryption method. The so-called symmetric encryption refers to the symmetric format of encryption and decryption methods, that is, decryption is the inverse process of encryption. Let's take a look at it: the encryption str

Introduction to the use of SED tools In fact, the functionality of the grep tool is not strong enough, it is only to find the function, but not to replace the search, the previous use of Vim to manipulate the document, can be found can also be replaced, but only in the text inside the operation, and not output to the screen, the SED tool can be replaced with the text output to the screen, And there are other richer features. Sed is a streaming editor that operates on the lines of a docu

on the screen and is independent from the platform, please let me know, I will rewrite a tutorial on font. We started from the typical code of Lesson 1 and added the stdio. h header file for standard input/output operations. In addition, the stdarg. h header file is used to parse text and convert variables into text. Add the math. h header file so that we can use the sin and cos functions to move text on the screen.In addition, we need to add two variables. Base will save the number of the firs

): rot = image.rotate(angle, expand) fff = Image.new('RGBA',rot.size,self.bgColor) image = Image.composite(rot, fff, rot) return image def createImg(self, digit, font, angle): codeImg = Image.new('RGBA',self.imgSize,self.bgColor) draw = ImageDraw.Draw(codeImg); text = self.getDigit(digit) textPos = self.getTextPos(digit, font) draw.tex