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1、顶层代码includetimescale.vmoduleaes_top(clk,rst,kld,sel,ld,done,key,text_in,text_out);inputclk,rst;inputkld,ld,sel;outputdone;input127:0key;input127:0text_in;output127:0text_out;wire7:0wire7:0wire7:0wire7:0sa00_sub,sa10_sub,sa20_sub,sa30_sub,sa01_sub,sa11_sub,sa21_sub,sa31_sub,sa02_sub,sa12_sub,sa22_sub
2、,sa32_sub,sa03_sub;sa13_sub;sa23_sub;sa33_sub;wire7:0wire7:0wire7:0wire7:0sa00_sr,sa10_sr,sa20_sr,sa30_sr,sa01_sr,sa11_sr,sa21_sr,sa31_sr,sa02_sr,sa12_sr,sa22_sr,sa32_sr,sa03_sr;sa13_sr;sa23_sr;sa33_sr;wire7:0wire7:0wire7:0wire7:0sa00_ark,sa10_ark,sa20_ark,sa30_ark,sa01_ark,sa11_ark,sa21_ark,sa31_ar
3、k,sa02_ark,sa12_ark,sa22_ark,sa32_ark,sa03_ark;sa13_ark;sa23_ark;sa33_ark;reg31:0wk0,wk1,wk2,wk3;wire31:0w0,w1,w2,w3;reg31:0w_k0,w_k1,w_k2,w_k3;reg127:0text_in_r;reg127:0text_out;reg7:0sa00,sa01,sa02,sa03;reg7:0sa10,sa11,sa12,sa13;reg7:0sa20,sa21,sa22,sa23;reg7:0sa30,sa31,sa32,sa33;wire7:0sa00_next,
4、sa01_next,sa02_next,sa03_next;wire7:0sa10_next,sa11_next,sa12_next,sa13_next;wire7:0sa20_next,sa21_next,sa22_next,sa23_next;wire7:0sa30_next,sa31_next,sa32_next,sa33_next;regld_r,done;reg3:0dcnt;reggo=0;/shangshenggoalways(posedgeclk)if(!rst)go=#11b0;elseif(sel)go=#11b1;elseif(done)go=#11b0;always(p
5、osedgeclk)if(!rst)dcnt=#14h0;elseif(done)dcnt=#14h0;elseif(ld)dcnt=#14h1;elseif(go)dcnt=#1dcnt+4h1always(posedgeclk)done=#1(dcnt=4hb)&!ld;always(posedgeclk)if(ld)text_in_r=#1text_in;/readalways(posedgeclk)sa33=#1ld_r?text_in_r007000w30700:always(posedgeclk)sa23=#1ld_r?text_in_r015008w31508:always(po
6、sedgeclk)sa13=#1ld_r?text_in_r023016w32316:always(posedgeclk)sa03=#1ld_r?text_in_r031024w33124:always(posedgeclk)sa32=#1ld_r?text_in_r039032w20700:always(posedgeclk)sa22=#1ld_r?text_in_r047040w21508:always(posedgeclk)sa12=#1ld_r?text_in_r055048w22316:always(posedgeclk)sa02=#1ld_r?text_in_r063056w231
7、24:always(posedgeclk)sa31=#1ld_r?text_in_r071064w10700:always(posedgeclk)sa21=#1ld_r?text_in_r079072w11508:always(posedgeclk)sa11=#1ld_r?text_in_r087080w12316:always(posedgeclk)sa01=#1ld_r?text_in_r095088w13124:always(posedgeclk)sa30=#1ld_r?text_in_r103096w00700:always(posedgeclk)sa20=#1ld_r?text_in
8、_r111104w01508:always(posedgeclk)sa10=#1ld_r?text_in_r119112w02316:always(posedgeclk)sa00=#1ld_r?text_in_r127120w03124:always(posedgeclk)ld_r=#1ld;/ld为1时text_in与初始密钥异或，ld为0时等于saxx_nextsa33_next;sa23_next;sa13_next;sa03_next;sa32_next;sa22_next;sa12_next;sa02_next;sa31_next;sa21_next;sa11_next;sa01_n
9、ext;sa30_next;sa20_next;sa10_next;sa00_next;/sreplaceandassignsa00_sr=sa00_sub;assignsa01_sr=sa01_sub;assignsa02_sr=sa02_sub;assignsa03_sr=sa03_sub;assignsa10_sr=!go?sa13_sub:sa11sub;assignsa11_sr=!go?sa10_sub:sa12sub;assignsa12_sr=!go?sa11_sub:sa13sub;assignsa13_sr=!go?sa12_sub:sa10sub;assignsa20_s
10、r=!go?sa22_sub:sa22sub;assignsa21_sr=!go?sa23_sub:sa23sub;assignsa22_sr=!go?sa20_sub:sa20sub;assignsa23_sr=!go?sa21_sub:sa21sub;assignsa30_sr=!go?sa31_sub:sa33sub;assignsa31_sr=!go?sa32_sub:sa30sub;assignsa32_sr=!go?sa33_sub:sa31sub;assignsa33_sr=!go?sa30_sub:sa32sub;/hunhebianhuanassignsa00_ark,sa1
11、0_ark,sa20_ark,sa30_ark=gomix_col(sa00_sr,sa10_sr,sa20_sr,sa30_sr):inv_mix_col(sa00_sr,sa10_sr,sa20_sr,sa30_sr);assignsa01_ark,sa11_ark,sa21_ark,sa31_ark=gomix_col(sa01_sr,sa11_sr,sa21_sr,sa31_sr):inv_mix_col(sa01_sr,sa11_sr,sa21_sr,sa31_sr);assignsa02_ark,sa12_ark,sa22_ark,sa32_ark=gomix_col(sa02_s
12、r,sa12_sr,sa22_sr,sa32_sr):inv_mix_col(sa02_sr,sa12_sr,sa22_sr,sa32_sr);assignsa03_ark,sa13_ark,sa23_ark,sa33_ark=gomix_col(sa03_sr,sa13_sr,sa23_sr,sa33_sr):inv_mix_col(sa03_sr,sa13_sr,sa23_sr,sa33_sr);/nextcipterassignsa00_next=go?saOO_arkw03124sa00arkwk03124assignsa01_next=go?sa01_arkw13124sa01arkwk13124assignsa02_next=go?sa02_arkw23124sa02arkwk23124assignsa03_next=go?sa03_arkw33124sa03arkwk33124assignsa10_next=go?sa10_arkw02316sa10arkwk02316assignsa11_next=go?sa11_arkw12316sa11arkwk12316assignsa12_next=go?sa12_arkw22316sa12arkwk22316
