mirror of
https://github.com/ilyakooo0/urbit.git
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549 lines
11 KiB
C
549 lines
11 KiB
C
/* j/5/aes_cbc.c
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**
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*/
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#include "all.h"
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#include <openssl/aes.h>
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/* functions
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*/
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u3_noun
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u3qea_cbca_en(u3_atom key,
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u3_atom iv,
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u3_atom msg)
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{
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c3_y key_y[16];
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c3_y iv_y[16];
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c3_w len_msg_w;
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c3_w len_out_w;
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c3_y *msg_y;
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c3_y *out_y;
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u3_atom out;
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AES_KEY key_u;
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c3_assert(u3r_met(3, key) <= 16);
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c3_assert(u3r_met(3, iv) <= 16);
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len_msg_w = u3r_met(3, msg);
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len_out_w = (len_msg_w % 16) == 0 ? len_msg_w : len_msg_w + (16 - (len_msg_w % 16));
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len_msg_w = len_out_w;
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msg_y = u3a_malloc(len_msg_w);
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out_y = u3a_malloc(len_out_w);
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{
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int i = 15;
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do {
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key_y[i] = u3r_byte(15-i, key);
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i--;
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} while (i >= 0);
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}
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{
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int i = 15;
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do {
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iv_y[i] = u3r_byte(15-i, iv);
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i--;
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} while (i >= 0);
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}
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{
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int i = len_msg_w - 1;
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do {
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msg_y[i] = u3r_byte((len_msg_w - 1)-i, msg);
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i--;
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} while (i >= 0);
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}
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if ( 0 != AES_set_encrypt_key(key_y, 128, &key_u) ) {
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return u3m_bail(c3__exit);
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}
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else {
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AES_cbc_encrypt(msg_y, out_y, len_msg_w, &key_u, iv_y, AES_ENCRYPT);
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}
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/* array reverse - we can write backwards u3i_bytes *
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* in the unlikely event that this becomes a problem */
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{
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int i = len_out_w - 1;
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int j = 0;
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c3_y tmp;
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do {
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tmp = out_y[i];
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out_y[i] = out_y[j];
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out_y[j] = tmp;
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i--; j++;
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} while (i > j);
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}
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out = u3i_bytes(len_out_w, out_y);
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u3a_free(msg_y);
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u3a_free(out_y);
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return out;
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}
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u3_noun
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u3wea_cbca_en(u3_noun cor)
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{
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u3_noun a, b, c;
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if ( c3n == u3r_mean(cor, u3x_sam, &c, 60, &a, 61, &b, 0) ||
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c3n == u3ud(a) ||
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c3n == u3ud(b) ) {
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return u3m_bail(c3__exit);
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} else {
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return u3qea_cbca_en(a, b, c);
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}
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}
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u3_noun
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u3qea_cbca_de(u3_atom key,
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u3_atom iv,
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u3_atom msg)
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{
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c3_y key_y[16];
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c3_y iv_y[16];
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c3_w len_msg_w;
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c3_w len_out_w;
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c3_y *msg_y;
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c3_y *out_y;
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u3_atom out;
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AES_KEY key_u;
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c3_assert(u3r_met(3, key) <= 16);
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c3_assert(u3r_met(3, iv) <= 16);
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len_msg_w = u3r_met(3, msg);
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len_out_w = (len_msg_w % 16) == 0 ? len_msg_w : len_msg_w + (16 - (len_msg_w % 16));
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len_msg_w = len_out_w;
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msg_y = u3a_malloc(len_msg_w);
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out_y = u3a_malloc(len_out_w);
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{
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int i = 15;
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do {
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key_y[i] = u3r_byte(15-i, key);
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i--;
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} while (i >= 0);
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}
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{
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int i = 15;
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do {
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iv_y[i] = u3r_byte(15-i, iv);
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i--;
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} while (i >= 0);
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}
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{
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int i = len_msg_w - 1;
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do {
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msg_y[i] = u3r_byte((len_msg_w - 1)-i, msg);
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i--;
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} while (i >= 0);
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}
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if ( 0 != AES_set_decrypt_key(key_y, 128, &key_u) ) {
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return u3m_bail(c3__exit);
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}
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else {
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AES_cbc_encrypt(msg_y, out_y, len_msg_w, &key_u, iv_y, AES_DECRYPT);
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}
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/* array reverse - we can write backwards u3i_bytes *
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* in the unlikely event that this becomes a problem */
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{
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int i = len_out_w - 1;
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int j = 0;
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c3_y tmp;
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do {
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tmp = out_y[i];
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out_y[i] = out_y[j];
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out_y[j] = tmp;
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i--; j++;
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} while (i > j);
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}
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out = u3i_bytes(len_out_w, out_y);
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u3a_free(msg_y);
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u3a_free(out_y);
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return out;
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}
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u3_noun
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u3wea_cbca_de(u3_noun cor)
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{
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u3_noun a, b, c;
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if ( c3n == u3r_mean(cor, u3x_sam, &c, 60, &a, 61, &b, 0) ||
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c3n == u3ud(a) ||
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c3n == u3ud(b) ) {
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return u3m_bail(c3__exit);
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} else {
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return u3qea_cbca_de(a, b, c);
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}
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}
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u3_noun
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u3qea_cbcb_en(u3_atom key,
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u3_atom iv,
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u3_atom msg)
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{
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c3_y key_y[24];
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c3_y iv_y[16];
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c3_w len_msg_w;
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c3_w len_out_w;
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c3_y *msg_y;
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c3_y *out_y;
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u3_atom out;
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AES_KEY key_u;
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c3_assert(u3r_met(3, key) <= 24);
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c3_assert(u3r_met(3, iv) <= 16);
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len_msg_w = u3r_met(3, msg);
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len_out_w = (len_msg_w % 16) == 0 ? len_msg_w : len_msg_w + (16 - (len_msg_w % 16));
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len_msg_w = len_out_w;
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msg_y = u3a_malloc(len_msg_w);
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out_y = u3a_malloc(len_out_w);
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{
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int i = 23;
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do {
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key_y[i] = u3r_byte(23-i, key);
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i--;
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} while (i >= 0);
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}
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{
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int i = 15;
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do {
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iv_y[i] = u3r_byte(15-i, iv);
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i--;
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} while (i >= 0);
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}
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{
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int i = len_msg_w - 1;
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do {
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msg_y[i] = u3r_byte((len_msg_w - 1)-i, msg);
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i--;
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} while (i >= 0);
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}
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if ( 0 != AES_set_encrypt_key(key_y, 192, &key_u) ) {
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return u3m_bail(c3__exit);
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}
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else {
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AES_cbc_encrypt(msg_y, out_y, len_msg_w, &key_u, iv_y, AES_ENCRYPT);
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}
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/* array reverse - we can write backwards u3i_bytes *
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* in the unlikely event that this becomes a problem */
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{
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int i = len_out_w - 1;
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int j = 0;
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c3_y tmp;
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do {
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tmp = out_y[i];
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out_y[i] = out_y[j];
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out_y[j] = tmp;
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i--; j++;
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} while (i > j);
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}
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out = u3i_bytes(len_out_w, out_y);
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u3a_free(msg_y);
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u3a_free(out_y);
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return out;
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}
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u3_noun
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u3wea_cbcb_en(u3_noun cor)
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{
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u3_noun a, b, c;
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if ( c3n == u3r_mean(cor, u3x_sam, &c, 60, &a, 61, &b, 0) ||
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c3n == u3ud(a) ||
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c3n == u3ud(b) ) {
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return u3m_bail(c3__exit);
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} else {
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return u3qea_cbcb_en(a, b, c);
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}
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}
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u3_noun
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u3qea_cbcb_de(u3_atom key,
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u3_atom iv,
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u3_atom msg)
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{
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c3_y key_y[24];
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c3_y iv_y[16];
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c3_w len_msg_w;
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c3_w len_out_w;
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c3_y *msg_y;
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c3_y *out_y;
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u3_atom out;
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AES_KEY key_u;
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c3_assert(u3r_met(3, key) <= 24);
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c3_assert(u3r_met(3, iv) <= 16);
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len_msg_w = u3r_met(3, msg);
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len_out_w = (len_msg_w % 16) == 0 ? len_msg_w : len_msg_w + (16 - (len_msg_w % 16));
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len_msg_w = len_out_w;
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msg_y = u3a_malloc(len_msg_w);
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out_y = u3a_malloc(len_out_w);
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{
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int i = 23;
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do {
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key_y[i] = u3r_byte(23-i, key);
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i--;
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} while (i >= 0);
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}
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{
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int i = 15;
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do {
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iv_y[i] = u3r_byte(15-i, iv);
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i--;
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} while (i >= 0);
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}
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{
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int i = len_msg_w - 1;
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do {
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msg_y[i] = u3r_byte((len_msg_w - 1)-i, msg);
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i--;
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} while (i >= 0);
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}
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if ( 0 != AES_set_decrypt_key(key_y, 192, &key_u) ) {
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return u3m_bail(c3__exit);
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}
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else {
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AES_cbc_encrypt(msg_y, out_y, len_msg_w, &key_u, iv_y, AES_DECRYPT);
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}
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/* array reverse - we can write backwards u3i_bytes *
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* in the unlikely event that this becomes a problem */
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{
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int i = len_out_w - 1;
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int j = 0;
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c3_y tmp;
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do {
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tmp = out_y[i];
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out_y[i] = out_y[j];
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out_y[j] = tmp;
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i--; j++;
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} while (i > j);
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}
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out = u3i_bytes(len_out_w, out_y);
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u3a_free(msg_y);
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u3a_free(out_y);
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return out;
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}
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u3_noun
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u3wea_cbcb_de(u3_noun cor)
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{
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u3_noun a, b, c;
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if ( c3n == u3r_mean(cor, u3x_sam, &c, 60, &a, 61, &b, 0) ||
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c3n == u3ud(a) ||
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c3n == u3ud(b) ) {
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return u3m_bail(c3__exit);
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} else {
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return u3qea_cbcb_de(a, b, c);
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}
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}
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u3_noun
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u3qea_cbcc_en(u3_atom key,
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u3_atom iv,
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u3_atom msg)
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{
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c3_y key_y[32];
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c3_y iv_y[16];
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c3_w len_msg_w;
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c3_w len_out_w;
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c3_y *msg_y;
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c3_y *out_y;
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u3_atom out;
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AES_KEY key_u;
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c3_assert(u3r_met(3, key) <= 32);
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c3_assert(u3r_met(3, iv) <= 16);
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len_msg_w = u3r_met(3, msg);
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len_out_w = (len_msg_w % 16) == 0 ? len_msg_w : len_msg_w + (16 - (len_msg_w % 16));
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len_msg_w = len_out_w;
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msg_y = u3a_malloc(len_msg_w);
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out_y = u3a_malloc(len_out_w);
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{
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int i = 31;
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do {
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key_y[i] = u3r_byte(31-i, key);
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i--;
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} while (i >= 0);
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}
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{
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int i = 15;
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do {
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iv_y[i] = u3r_byte(15-i, iv);
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i--;
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} while (i >= 0);
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}
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{
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int i = len_msg_w - 1;
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do {
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msg_y[i] = u3r_byte((len_msg_w - 1)-i, msg);
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i--;
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} while (i >= 0);
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}
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if ( 0 != AES_set_encrypt_key(key_y, 256, &key_u) ) {
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return u3m_bail(c3__exit);
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}
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else {
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AES_cbc_encrypt(msg_y, out_y, len_msg_w, &key_u, iv_y, AES_ENCRYPT);
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}
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/* array reverse - we can write backwards u3i_bytes *
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* in the unlikely event that this becomes a problem */
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{
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int i = len_out_w - 1;
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int j = 0;
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c3_y tmp;
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do {
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tmp = out_y[i];
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out_y[i] = out_y[j];
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out_y[j] = tmp;
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i--; j++;
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} while (i > j);
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}
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out = u3i_bytes(len_out_w, out_y);
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u3a_free(msg_y);
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u3a_free(out_y);
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return out;
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}
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u3_noun
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u3wea_cbcc_en(u3_noun cor)
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{
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u3_noun a, b, c;
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if ( c3n == u3r_mean(cor, u3x_sam, &c, 60, &a, 61, &b, 0) ||
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c3n == u3ud(a) ||
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c3n == u3ud(b) ) {
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return u3m_bail(c3__exit);
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} else {
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return u3qea_cbcc_en(a, b, c);
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}
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}
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u3_noun
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u3qea_cbcc_de(u3_atom key,
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u3_atom iv,
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u3_atom msg)
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{
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c3_y key_y[32];
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c3_y iv_y[16];
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c3_w len_msg_w;
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c3_w len_out_w;
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c3_y *msg_y;
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c3_y *out_y;
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u3_atom out;
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AES_KEY key_u;
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c3_assert(u3r_met(3, key) <= 32);
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c3_assert(u3r_met(3, iv) <= 16);
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len_msg_w = u3r_met(3, msg);
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len_out_w = (len_msg_w % 16) == 0 ? len_msg_w : len_msg_w + (16 - (len_msg_w % 16));
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len_msg_w = len_out_w;
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msg_y = u3a_malloc(len_msg_w);
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out_y = u3a_malloc(len_out_w);
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{
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int i = 31;
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do {
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key_y[i] = u3r_byte(31-i, key);
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i--;
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} while (i >= 0);
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}
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{
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int i = 15;
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do {
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iv_y[i] = u3r_byte(15-i, iv);
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i--;
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} while (i >= 0);
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}
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{
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int i = len_msg_w - 1;
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do {
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msg_y[i] = u3r_byte((len_msg_w - 1)-i, msg);
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i--;
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} while (i >= 0);
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}
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if ( 0 != AES_set_decrypt_key(key_y, 256, &key_u) ) {
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return u3m_bail(c3__exit);
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}
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else {
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AES_cbc_encrypt(msg_y, out_y, len_msg_w, &key_u, iv_y, AES_DECRYPT);
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}
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/* array reverse - we can write backwards u3i_bytes *
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* in the unlikely event that this becomes a problem */
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{
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int i = len_out_w - 1;
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int j = 0;
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c3_y tmp;
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do {
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tmp = out_y[i];
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out_y[i] = out_y[j];
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out_y[j] = tmp;
|
|
i--; j++;
|
|
} while (i > j);
|
|
}
|
|
|
|
out = u3i_bytes(len_out_w, out_y);
|
|
u3a_free(msg_y);
|
|
u3a_free(out_y);
|
|
return out;
|
|
}
|
|
|
|
u3_noun
|
|
u3wea_cbcc_de(u3_noun cor)
|
|
{
|
|
u3_noun a, b, c;
|
|
|
|
if ( c3n == u3r_mean(cor, u3x_sam, &c, 60, &a, 61, &b, 0) ||
|
|
c3n == u3ud(a) ||
|
|
c3n == u3ud(b) ) {
|
|
return u3m_bail(c3__exit);
|
|
} else {
|
|
return u3qea_cbcc_de(a, b, c);
|
|
}
|
|
}
|