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https://opencores.org/ocsvn/apbtoaes128/apbtoaes128/trunk
[/] [apbtoaes128/] [trunk/] [rtl/] [control_unit.v] - Diff between revs 7 and 9
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| Rev 7 |
Rev 9 |
| Line 249... |
Line 249... |
state <= IDLE;
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state <= IDLE;
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else
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else
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state <= next_state;
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state <= next_state;
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end
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end
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assign encrypt_decrypt = (op_mode == ENCRYPTION || op_mode == KEY_DERIVATION ||
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assign encrypt_decrypt = (op_mode == ENCRYPTION || op_mode == KEY_DERIVATION || state == GEN_KEY0
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state == GEN_KEY0 || state == GEN_KEY1 ||
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|| state == GEN_KEY1 ||state == GEN_KEY2 || state == GEN_KEY3 );
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state == GEN_KEY2 || state == GEN_KEY3 );
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assign enc_dec = encrypt_decrypt | mode_ctr;
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assign enc_dec = encrypt_decrypt | mode_ctr;
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assign key_gen = (state == ROUND_KEY0);
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assign key_gen = (state == ROUND_KEY0);
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assign op_key_derivation = (op_mode == KEY_DERIVATION);
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assign op_key_derivation = (op_mode == KEY_DERIVATION);
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| Line 473... |
Line 472... |
begin
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begin
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sbox_sel = COL_0;
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sbox_sel = COL_0;
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rk_sel = (last_round) ? MIXCOL_IN : MIXCOL_OUT;
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rk_sel = (last_round) ? MIXCOL_IN : MIXCOL_OUT;
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key_out_sel = KEY_0;
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key_out_sel = KEY_0;
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key_sel = KEY_OUT;
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key_sel = KEY_OUT;
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if(enc_dec)
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if(enc_dec)
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key_en = EN_KEY_1;
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key_en = EN_KEY_1;
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if((mode_cbc && last_round && !enc_dec) || (mode_ctr && last_round))
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if((mode_cbc && last_round && !enc_dec) || (mode_ctr && last_round))
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col_sel = INPUT;
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col_sel = INPUT;
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else
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else
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