Implementation of MD5 Algorithm in JS
/*************************************** ******************** Md5.js** A JavaScript Implementation of the RSA Data Security, Inc. MD5* Message-Digest algorithm.** Copyright (c) Paul johnaston 1999. distributed under the lgpl.**************************************** *******************/
/* To convert strings to a list of ASCII values */VaR sascii = "! /"# $ % '() * +,-./0123456789:; VaR sascii = sascii + "[//] ^ _ 'abcdefghijklmnopqrstuvwxyz {| }~ ";
/* C
is as follows: [CPP] view plain copy addr0,r1,r2 nbsp;@r0=r1+r2 Addr0,r1, #256 @R0=R1+256 addr0,r2,r3,lsl#1@r0 =R2+ (r3 2.2 with carry addition instruction ADC adc{conditions}{s} purpose register, operand 1 NBSP;ADC instruction is used to add two operands, plus the value of the C condition flag in CPSR, and store the results in the destination register. It uses a carry flag bit so that you can do
A dead loop was encountered while porting a Windows program to Linux, and finally a statement similar to this was located for (i = 0; i Don't ask me who wrote it, why do you write it so ( tear eyes !) ).According to the common sense of c, i = i++ should be equivalent to i++, it is true on Windows, but Linux is not, this should be caused by compiler differences.---------------------------------------Split-line no.0------------------------------------------------------------- --------------------
1. explore the election process 1.1 experiment topology 1.2 experiment requirements (1) configure the basic IP address based on the topology (2) Capture packets on the shared link and pay attention to the Hello message during OSPF neighbor relationship establishment (3) debug the OSPF joining relationship on R1, R2, R3, and R4 (4) sequentially declare the direct connection network of R1, R2, R3, and R4 to t
Frame-relay:: Configure Frame-relay SWITCH so that the Frame-relay PVC between R2,R3,R3 is Full-mesh. However, only the PVC shown in the figure can be used.R2,R3,R4 Physical Interface Connection Framme-relay SWITCHBetween R4 and R5, use a PPP link. Please eliminate redundant 32-bit host routingR1,R2,R3 's Ethernet port
floating-point operations. So allVFP commands are actually some coprocessor commands. For example, fadds is actually a CDP command, and FLDS is a LDC command. Theoretically, As long as arm1136jf-S CPU should be able to support VFP.
3. compiler support for VFPA floating point number operation is finally translated into a VFP command, or translated into FPA, or softfloat is determined by the compiler. Instance:[SJL @ sjl vfp] $ cat F. CInt main (){Float F1 = 1.2, f2 = 1.3;F1 = F2 * F1;}[SJL @ sjl
routerID [R1] ospf1 rof1-id 2.2.2.2 area 0.0.0.0 network 10.1.1.1 0.0.0.0 network 10.1.12.1 0.0.0.0 [R2] ospf1 rof1-id 2.2.2.2 area 0.0.0.0 network 255.0.0.0.0 network 10.2.2 1.0.0.0.0: r1 and R2 cannot establish OSPF neighbor relationship. Analysis: After R1 sends the hello packet, R2 receives the hello packet from R1 and finds that the routerID is consistent with its own router ID, and the neighbor cannot be established. 3) Scenario 2: R1, R2, and R3
area. R1 and R3 are the two broadband routers respectively. They are generally connected through the access switch on the floor and the backbone switch of the residential area, this part is omitted in this figure. Figure 4 in this case, as long as two routes are added to the gateway device in the example 1 method, mutual access between hosts in the two subnets can be achieved, in addition, hosts in the 10.0.0.0 Class a cidr block can also access the
Topology Analysis of the junos isis RegionTypical ISIS topology types:Refer to AREA 49.0001 R1 (L1 only) and R2 (L1/L2). R3 (L2 only) needs to configure the same region address, while R3 and R4 (L2) configure IP addresses in different regions for the adjacent vro.There are three types of vrol1 roles: L1: similar to the full-ended area L1/L2 in OSPF: similar to the ABR vrol2 L2 In OSPF: for details about the
MPLS + BGP advanced featuresWill LDP allocate tags for BGP routes? Why? --- Previously we mentioned that LDP assigns tags to IGP and never assigns tags to BGP. the following uses an experiment to illustrate how LDP + BGP works. forwarding method of a pure IP Network: In this topology, R1 and R4 establish an EBGP neighbor. r3 and R5 establish EBGP neighbors. build an IBGP neighbor between R1 and R3. IGP prot
Current location:Kubernetes> route switching> Cisco technology> horizontal frame relay splittingTime:Source:UnknownAuthor:AdminClick:126 horizontal split issues on Frame Relay! The topology topoly1 is shown in the figure. In the figure, there is PVC between R1 and R2, R1 and R3, and there is no PVC between R2 and R3. configure the RiP routing protocol on R1, R2, and R3
-bandwidth access in the Community. I built a home LAN with a Broadband Router to share the Internet. Just like my neighbors, I used a Broadband Router to build another home LAN. However, the hosts in our respective LAN cannot communicate with each other, and the ping fails. What is the problem? Prawns: In this case, the whole community is actually a large LAN, and the host cannot communicate with each other. In fact, this is the same reason why LAN 1 cannot be pinged to LAN 2, the reason is tha
in the MPLS domain, from one LSP to two LSP. use router C as the demarcation point. non-link aggregation, a complete FEC path: In the following topology, R4 has a loopback port. 44.1.1.1/32R5 also has a loopback port: During the 55.1.1.1/32 period, R4, R1, R2, R3, R5, all devices have the same understanding of the two routes (with the same mask, to form a prerequisite for completing the FEC link. from R4 to R 5 is a path, which can be viewed through
12.ARM Pseudo-instruction operationFirst arm pseudo-directives include:
Arm machine code
Defining class pseudo-directives
Operation class Pseudo-directives
?Arm Machine code:In fact, any kind of processor can be run called Machine code, machine code is from the assembler through the assembler conversion. Next look at the machine code information. Process: Figure 1-1.Figure 1-1In the previous section, a simple assembly project was established, at start. S has only three line
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