AES Architectures in VS .NET

Maker EAN 13 in VS .NET AES Architectures
4.1 AES Architectures
GTIN - 13 Scanner In .NET
Using Barcode Control SDK for .NET framework Control to generate, create, read, scan barcode image in .NET framework applications.
Figure 4.10 Fully pipelined key expansion.
Painting EAN-13 Supplement 5 In VS .NET
Using Barcode creation for Visual Studio .NET Control to generate, create EAN / UCC - 13 image in .NET framework applications.
blocks. Each incremental expansion block generates a single word (128/4 32 bits) for the key as described in the NIST speci cation. Each of these blocks is given a pipeline stage. This is shown in Figure 4.11. As mentioned above, each Key-Exp1 block generates a single word (32 bits) of the expanded key. The stages to add pipelining is shown in Figure 4.12. As can be seen in Figure 4.12, the S-box can be implemented as a synchronous 8 256 ROM, and to preserve latency timing accuracy, a pipeline stage must also be added to the R-CON calculation as described in the NIST speci cation. Also, to ensure that the latency timing between the key pipeline and the data propagation pipeline is accurate, the keys must be generated one clock cycle earlier than the round data is completed. This is because the round key is necessary for the add-round-key block that clocks the XOR operation into its nal register. In other words, clock 4 of the key expansion block must be synchronous with clock 3 of the corresponding Round block. This is handled by the initial key addition at the beginning of the key expansion process. This is shown in Figure 4.13. The key data beyond the rst 128 bits begins to expand on the rst clock cycle, while the data pipeline begins on the second clock (a one-clock latency
Reading GTIN - 13 In .NET Framework
Using Barcode decoder for .NET framework Control to read, scan read, scan image in .NET applications.
Figure 4.11 Propagation through 32-bit key expansion stages.
Encode Bar Code In Visual Studio .NET
Using Barcode drawer for .NET framework Control to generate, create bar code image in Visual Studio .NET applications.
4 Example Design: The Advanced Encryption Standard
Barcode Decoder In .NET Framework
Using Barcode reader for .NET Control to read, scan read, scan image in .NET applications.
Figure 4.12 Single word expansion inside Key-Exp1.
Drawing UPC - 13 In Visual C#.NET
Using Barcode drawer for VS .NET Control to generate, create European Article Number 13 image in .NET applications.
Figure 4.13 Skewing of the key pipeline.
EAN-13 Supplement 5 Generation In Visual Studio .NET
Using Barcode printer for ASP.NET Control to generate, create EAN13 image in ASP.NET applications.
from the initial add-round-key operation). The top-level implementation is shown in the code below for Nk 4.
EAN 13 Generator In Visual Basic .NET
Using Barcode generation for VS .NET Control to generate, create GTIN - 13 image in .NET applications.
module AES_core( output [32* Nb-1:0] output input input [32* Nb-1:0] input [32* Nk-1:0] input oCiphertext, // output cipthertext oValid, // data at output is valid iClk, iReset, iPlaintext, // input data to be encrypted iKey, // input cipther key iReady); // valid data to encrypt
Generating UPC-A In VS .NET
Using Barcode printer for .NET Control to generate, create GS1 - 12 image in VS .NET applications.
4.1 AES Architectures wire [32* Nb-1:0]
Create GTIN - 128 In Visual Studio .NET
Using Barcode printer for .NET Control to generate, create UCC-128 image in Visual Studio .NET applications.
wRoundKey1, wRoundKey2, wRoundKey3, wRoundKey4, wRoundKey5, wRoundKey6, wRoundKey7, wRoundKey8, wRoundKey9, wRoundKeyFinal, wRoundKeyInit; wBlockOut1, wBlockOut2, wBlockOut3, wBlockOut4, wBlockOut5, wBlockOut6, wBlockOut7, wBlockOut8, wBlockOut9, wBlockOutInit; wNkKeys1, wNkKeys2, wNkKeys3, wNkKeys4, wNkKeys5, wNkKeys6, wNkKeys7, wNkKeys8, wNkKeys9, wNkKeysFinal, wNkKeysInit; wKeyIter1, wKeyIter2, wKeyIter3, wKeyIter4, wKeyIter5, wKeyIter6, wKeyIter7, wKeyIter8, wKeyIter9, wKeyIterFinal, wKeyIterInit; wKeyIterModNk1, wKeyIterModNk2, wKeyIterModNk3, wKeyIterModNk4, wKeyIterModNk5, wKeyIterModNk6, wKeyIterModNk7, wKeyIterModNk8, wKeyIterModNk9, wKeyIterModNkFinal, wKeyIterModNkInit; wKeyIterDivNk1, wKeyIterDivNk2, wKeyIterDivNk3, wKeyIterDivNk4, wKeyIterDivNk5, wKeyIterDivNk6, wKeyIterDivNk7, wKeyIterDivNk8, wKeyIterDivNk9, wKeyIterDivNkFinal, wKeyIterDivNkInit; wValid1, wValid2, wValid3, wValid4, wValid5, wValid6, wValid7, wValid8, wValid9, wValidFinal, wValidInit; wKeyReg; wReadyReg; wPlaintextReg;
Bar Code Printer In .NET
Using Barcode printer for .NET Control to generate, create barcode image in VS .NET applications.
wire [32* Nb-1:0]
USPS Intelligent Mail Creator In Visual Studio .NET
Using Barcode creator for .NET Control to generate, create OneCode image in Visual Studio .NET applications.
wire [32* Nk-1:0]
Create Code 39 In C#
Using Barcode encoder for .NET Control to generate, create ANSI/AIM Code 39 image in VS .NET applications.
wire [3:0]
Drawing Data Matrix 2d Barcode In VB.NET
Using Barcode drawer for .NET framework Control to generate, create Data Matrix ECC200 image in .NET framework applications.
wire [3:0]
UPCA Encoder In .NET
Using Barcode creator for ASP.NET Control to generate, create UPC-A image in ASP.NET applications.
wire [3:0]
Printing Bar Code In VB.NET
Using Barcode encoder for .NET framework Control to generate, create barcode image in .NET framework applications.
wire
UCC - 12 Printer In VB.NET
Using Barcode generator for .NET framework Control to generate, create GS1 128 image in VS .NET applications.
// registered inputs wire [32* Nk-1:0] wire wire [127:0]
Scan EAN 13 In .NET Framework
Using Barcode reader for Visual Studio .NET Control to read, scan read, scan image in .NET applications.
4 Example Design: The Advanced Encryption Standard // Initial key addition assign wRoundKeyInit = wKeyReg[32* Nk-1:32* Nk-128]; // round key assignments assign wRoundKey1 = wNkKeysInit[32* Nb-1:0]; assign wRoundKey2 = wNkKeys1[32* Nb-1:0]; assign wRoundKey3 = wNkKeys2[32* Nb-1:0]; assign wRoundKey4 = wNkKeys3[32* Nb-1:0]; assign wRoundKey5 = wNkKeys4[32* Nb-1:0]; assign wRoundKey6 = wNkKeys5[32* Nb-1:0]; assign wRoundKey7 = wNkKeys6[32* Nb-1:0]; assign wRoundKey8 = wNkKeys7[32* Nb-1:0]; assign wRoundKey9 = wNkKeys8[32* Nb-1:0]; // register inputs InputRegs InputRegs( .iClk(iClk), .iReset(iReset), .iKey(iKey), .iPlaintext(iPlaintext), .iReady(iReady), .oKey(wKeyReg), .oPlaintext(wPlaintextReg), .oReady(wReadyReg));
GS1 - 13 Generator In VB.NET
Using Barcode creation for Visual Studio .NET Control to generate, create EAN13 image in .NET framework applications.
// initial key expansion KeyExpInit KeyExpInit( .iClk(iClk), .iReset(iReset), .iNkKeys(wKeyReg), .oKeyIter(wKeyIterInit), .oKeyIterModNk(wKeyIterMod NkInit), .oNkKeys(wNkKeysInit), .oKeyIterDivNk (wKeyIterDivNkInit)); // initial addition of round key AddRoundKey InitialKey( .iClk(iClk), .iReset(iReset), .iBlockIn(wPlaintextReg), .iRoundKey(wRoundKeyInit), .oBlockOut(wBlockOutInit), .iReady(wReadyReg), .oValid(wValidInit)); // Number of rounds is a function of key size (10, 12, or 14) // Key expansion blocks KeyExpBlock KeyExpBlock1( .iClk(iClk), .iReset(iReset), .iKeyIter(wKeyIterInit), .iKeyIterModNk(wKeyIterMod NkInit), .iNkKeys(wNkKeysInit), .iKeyIterDivNk(wKeyIterDiv NkInit), .oKeyIter(wKeyIter1),
Painting Code 128 Code Set A In VB.NET
Using Barcode maker for VS .NET Control to generate, create Code 128B image in Visual Studio .NET applications.
4.1 AES Architectures .oKeyIterModNk(wKeyIter ModNk1), .oNkKeys(wNkKeys1), .oKeyIterDivNk(wKeyIter DivNk1)); KeyExpBlock KeyExpBlock8(
.iClk(iClk), .iReset(iReset), .iKeyIter(wKeyIter7), .iKeyIterModNk(wKeyIter ModNk7), .iNkKeys(wNkKeys7), .iKeyIterDivNk(wKeyIter DivNk7), .oKeyIter(wKeyIter8), .oKeyIterModNk(wKeyIter ModNk8), .oNkKeys(wNkKeys8), .oKeyIterDivNk(wKeyIter DivNk8));
// round transformation blocks Round R1( .iClk(iClk), .iReset(iReset), .iBlockIn(wBlockOutInit), .iRoundKey(wRoundKey1), .oBlockOut(wBlockOut1), .iReady(wValidInit), .oValid(wValid1)); ... .iClk(iClk), .iReset(iReset), .iBlockIn(wBlockOut8), .iRoundKey(wRoundKey9), .oBlockOut(wBlockOut9), .iReady(wValid8), .oValid(wValid9));
Round R9(
// 10 rounds total assign wRoundKeyFinal = wNkKeys9[32* Nb-1:0]; KeyExpBlock KeyExpBlock9( .iClk(iClk), .iReset(iReset), .iKeyIter(wKeyIter8), .iKeyIterModNk (wKeyIterModNk8), .iNkKeys(wNkKeys8), .iKeyIterDivNk (wKeyIterDivNk8), .oKeyIter(wKeyIter9), .oKeyIterModNk (wKeyIterModNk9), .oNkKeys(wNkKeys9),
4 Example Design: The Advanced Encryption Standard .oKeyIterDivNk(wKeyIter DivNk9)); FinalRound FinalRound( .iClk(iClk), .iReset(iReset), .iBlockIn(wBlockOut9), .iRoundKey(wRoundKeyFinal), .oBlockOut(oCiphertext), .iReady(wValid9), .oValid (oValid));