1 /* aes_decrypt.c - TinyCrypt implementation of AES decryption procedure */
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83 	uint8_t t[Nb*Nk];  in inv_mix_columns()  local
85 	mult_row_column(t, s);  in inv_mix_columns()
86 	mult_row_column(&t[Nb], s+Nb);  in inv_mix_columns()
87 	mult_row_column(&t[2*Nb], s+(2*Nb));  in inv_mix_columns()
88 	mult_row_column(&t[3*Nb], s+(3*Nb));  in inv_mix_columns()
89 	(void)_copy(s, sizeof(t), t, sizeof(t));  in inv_mix_columns()
120 	uint8_t t[Nb*Nk];  in inv_shift_rows()  local
122 	t[0]  = s[0]; t[1] = s[13]; t[2] = s[10]; t[3] = s[7];  in inv_shift_rows()
123 	t[4]  = s[4]; t[5] = s[1]; t[6] = s[14]; t[7] = s[11];  in inv_shift_rows()
124 	t[8]  = s[8]; t[9] = s[5]; t[10] = s[2]; t[11] = s[15];  in inv_shift_rows()
125 	t[12] = s[12]; t[13] = s[9]; t[14] = s[6]; t[15] = s[3];  in inv_shift_rows()
126 	(void)_copy(s, sizeof(t), t, sizeof(t));  in inv_shift_rows()
144 	add_round_key(state, s->words + Nb*Nr);  in tc_aes_decrypt()
146 	for (i = Nr - 1; i > 0; --i) {  in tc_aes_decrypt()
149 		add_round_key(state, s->words + Nb*i);  in tc_aes_decrypt()
155 	add_round_key(state, s->words);  in tc_aes_decrypt()