| 287 | } |
| 288 | |
| 289 | void std::DecryptShell(uint8_t *src, size_t srclen, uint8_t *dst, size_t dstlen, string private_key) { |
| 290 | BigUint d = 0, N = 0; |
| 291 | Printable2Number(private_key, d, N); |
| 292 | |
| 293 | //convert char[] to BigUint[] |
| 294 | BigUint tmp_size = CEIL(srclen, (ENCRYPT_DST_SIZE / 8)); |
| 295 | BigUint *tmp = new BigUint[tmp_size.get_ui()]; |
| 296 | |
| 297 | for (BigUint i = 0; i < tmp_size; i++) { |
| 298 | tmp[i.get_ui()] = 0; |
| 299 | U(src + (ENCRYPT_DST_SIZE / 8) * i.get_ui(), ENCRYPT_DST_SIZE, tmp[i.get_ui()]); |
| 300 | } |
| 301 | |
| 302 | //encrypt |
| 303 | for (BigUint i = 0; i < tmp_size; i++) { |
| 304 | tmp[i.get_ui()] = rsa::Decrypt(tmp[i.get_ui()], d, N); |
| 305 | } |
| 306 | |
| 307 | //convert BigUint[] to char[] |
| 308 | for (BigUint i = 0; i < tmp_size; i++) { |
| 309 | P(tmp[i.get_ui()], ENCRYPT_BLOCK_SIZE, dst + (ENCRYPT_BLOCK_SIZE / 8) * i.get_ui()); |
| 310 | } |
| 311 | |
| 312 | delete[tmp_size.get_ui()]tmp; |
| 313 | } |