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/// @file
#include "jets/q.h"
#include "jets/w.h"
#include "noun.h"
#include "urcrypt.h"
/* All of the CBC hoon truncates its key and prv inputs by passing them to
* the ECB functions, which truncate them, hence the raw u3r_bytes unpacking.
*/
typedef int (*urcrypt_cbc)(c3_y**,
size_t*,
c3_y*,
c3_y*,
urcrypt_realloc_t);
static u3_atom
_cqea_cbc_help(c3_y* key_y, u3_atom iv, u3_atom msg, urcrypt_cbc low_f)
{
u3_atom ret;
c3_w met_w;
c3_y iv_y[16];
c3_y* msg_y = u3r_bytes_all(&met_w, msg);
size_t len = met_w;
u3r_bytes(0, 16, iv_y, iv);
if ( 0 != (*low_f)(&msg_y, &len, key_y, iv_y, &u3a_realloc) ) {
ret = u3_none;
}
else {
ret = u3i_bytes(len, msg_y);
}
u3a_free(msg_y);
return ret;
}
static u3_atom
_cqea_cbca_en(u3_atom key,
u3_atom iv,
u3_atom msg)
{
c3_y key_y[16];
u3r_bytes(0, 16, key_y, key);
return _cqea_cbc_help(key_y, iv, msg, &urcrypt_aes_cbca_en);
}
u3_noun
u3wea_cbca_en(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 u3l_punt("cbca-en", _cqea_cbca_en(a, b, c));
}
}
static u3_atom
_cqea_cbca_de(u3_atom key,
u3_atom iv,
u3_atom msg)
{
c3_y key_y[16];
u3r_bytes(0, 16, key_y, key);
return _cqea_cbc_help(key_y, iv, msg, &urcrypt_aes_cbca_de);
}
u3_noun
u3wea_cbca_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 u3l_punt("cbca-de", _cqea_cbca_de(a, b, c));
}
}
static u3_atom
_cqea_cbcb_en(u3_atom key,
u3_atom iv,
u3_atom msg)
{
c3_y key_y[24];
u3r_bytes(0, 24, key_y, key);
return _cqea_cbc_help(key_y, iv, msg, &urcrypt_aes_cbcb_en);
}
u3_noun
u3wea_cbcb_en(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 u3l_punt("cbcb-en", _cqea_cbcb_en(a, b, c));
}
}
static u3_atom
_cqea_cbcb_de(u3_atom key,
u3_atom iv,
u3_atom msg)
{
c3_y key_y[24];
u3r_bytes(0, 24, key_y, key);
return _cqea_cbc_help(key_y, iv, msg, &urcrypt_aes_cbcb_de);
}
u3_noun
u3wea_cbcb_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 u3l_punt("cbcb-de", _cqea_cbcb_de(a, b, c));
}
}
static u3_atom
_cqea_cbcc_en(u3_atom key,
u3_atom iv,
u3_atom msg)
{
c3_y key_y[32];
u3r_bytes(0, 32, key_y, key);
return _cqea_cbc_help(key_y, iv, msg, &urcrypt_aes_cbcc_en);
}
u3_noun
u3wea_cbcc_en(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 u3l_punt("cbcc-en", _cqea_cbcc_en(a, b, c));
}
}
static u3_atom
_cqea_cbcc_de(u3_atom key,
u3_atom iv,
u3_atom msg)
{
c3_y key_y[32];
u3r_bytes(0, 32, key_y, key);
return _cqea_cbc_help(key_y, iv, msg, &urcrypt_aes_cbcc_de);
}
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 u3l_punt("cbcc-de", _cqea_cbcc_de(a, b, c));
}
}
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