mbedtls/library/des.c

213 #define DES_IP(X, Y)                                                       \  argument
216         T = (((X) >>  4) ^ (Y)) & 0x0F0F0F0F; (Y) ^= T; (X) ^= (T <<  4); \
217         T = (((X) >> 16) ^ (Y)) & 0x0000FFFF; (Y) ^= T; (X) ^= (T << 16); \
218         T = (((Y) >>  2) ^ (X)) & 0x33333333; (X) ^= T; (Y) ^= (T <<  2); \
219         T = (((Y) >>  8) ^ (X)) & 0x00FF00FF; (X) ^= T; (Y) ^= (T <<  8); \
220         (Y) = (((Y) << 1) | ((Y) >> 31)) & 0xFFFFFFFF;                    \
221         T = ((X) ^ (Y)) & 0xAAAAAAAA; (Y) ^= T; (X) ^= T;                 \
228 #define DES_FP(X, Y)                                                       \  argument
232         T = ((X) ^ (Y)) & 0xAAAAAAAA; (X) ^= T; (Y) ^= T;                 \
233         (Y) = (((Y) << 31) | ((Y) >> 1)) & 0xFFFFFFFF;                    \
234         T = (((Y) >>  8) ^ (X)) & 0x00FF00FF; (X) ^= T; (Y) ^= (T <<  8); \
235         T = (((Y) >>  2) ^ (X)) & 0x33333333; (X) ^= T; (Y) ^= (T <<  2); \
236         T = (((X) >> 16) ^ (Y)) & 0x0000FFFF; (Y) ^= T; (X) ^= (T << 16); \
237         T = (((X) >>  4) ^ (Y)) & 0x0F0F0F0F; (Y) ^= T; (X) ^= (T <<  4); \
243 #define DES_ROUND(X, Y)                              \  argument
247         (Y) ^= SB8[(T) & 0x3F] ^            \
253         (Y) ^= SB7[(T) & 0x3F] ^            \
398     uint32_t X, Y, T;  in mbedtls_des_setkey()  local
401     Y = MBEDTLS_GET_UINT32_BE(key, 4);  in mbedtls_des_setkey()
406     T =  ((Y >>  4) ^ X) & 0x0F0F0F0F;  X ^= T; Y ^= (T <<  4);  in mbedtls_des_setkey()
407     T =  ((Y) ^ X) & 0x10101010;  X ^= T; Y ^= (T);  in mbedtls_des_setkey()
414     Y =   (RHs[(Y >>  1) & 0xF] << 3) | (RHs[(Y >>  9) & 0xF] << 2)  in mbedtls_des_setkey()
415         | (RHs[(Y >> 17) & 0xF] << 1) | (RHs[(Y >> 25) & 0xF])  in mbedtls_des_setkey()
416         | (RHs[(Y >>  4) & 0xF] << 7) | (RHs[(Y >> 12) & 0xF] << 6)  in mbedtls_des_setkey()
417         | (RHs[(Y >> 20) & 0xF] << 5) | (RHs[(Y >> 28) & 0xF] << 4);  in mbedtls_des_setkey()
420     Y &= 0x0FFFFFFF;  in mbedtls_des_setkey()
428             Y = ((Y <<  1) | (Y >> 27)) & 0x0FFFFFFF;  in mbedtls_des_setkey()
431             Y = ((Y <<  2) | (Y >> 26)) & 0x0FFFFFFF;  in mbedtls_des_setkey()
439                 | ((Y >> 13) & 0x00002000) | ((Y >>  4) & 0x00001000)  in mbedtls_des_setkey()
440                 | ((Y <<  6) & 0x00000800) | ((Y >>  1) & 0x00000400)  in mbedtls_des_setkey()
441                 | ((Y >> 14) & 0x00000200) | ((Y) & 0x00000100)  in mbedtls_des_setkey()
442                 | ((Y >>  5) & 0x00000020) | ((Y >> 10) & 0x00000010)  in mbedtls_des_setkey()
443                 | ((Y >>  3) & 0x00000008) | ((Y >> 18) & 0x00000004)  in mbedtls_des_setkey()
444                 | ((Y >> 26) & 0x00000002) | ((Y >> 24) & 0x00000001);  in mbedtls_des_setkey()
452                 | ((Y >>  2) & 0x00002000) | ((Y <<  8) & 0x00001000)  in mbedtls_des_setkey()
453                 | ((Y >> 14) & 0x00000808) | ((Y >>  9) & 0x00000400)  in mbedtls_des_setkey()
454                 | ((Y) & 0x00000200) | ((Y <<  7) & 0x00000100)  in mbedtls_des_setkey()
455                 | ((Y >>  7) & 0x00000020) | ((Y >>  3) & 0x00000011)  in mbedtls_des_setkey()
456                 | ((Y <<  2) & 0x00000004) | ((Y >> 21) & 0x00000002);  in mbedtls_des_setkey()
599     uint32_t X, Y, T, *SK;  in mbedtls_des_crypt_ecb()  local
604     Y = MBEDTLS_GET_UINT32_BE(input, 4);  in mbedtls_des_crypt_ecb()
606     DES_IP(X, Y);  in mbedtls_des_crypt_ecb()
609         DES_ROUND(Y, X);  in mbedtls_des_crypt_ecb()
610         DES_ROUND(X, Y);  in mbedtls_des_crypt_ecb()
613     DES_FP(Y, X);  in mbedtls_des_crypt_ecb()
615     MBEDTLS_PUT_UINT32_BE(Y, output, 0);  in mbedtls_des_crypt_ecb()
687     uint32_t X, Y, T, *SK;  in mbedtls_des3_crypt_ecb()  local
692     Y = MBEDTLS_GET_UINT32_BE(input, 4);  in mbedtls_des3_crypt_ecb()
694     DES_IP(X, Y);  in mbedtls_des3_crypt_ecb()
697         DES_ROUND(Y, X);  in mbedtls_des3_crypt_ecb()
698         DES_ROUND(X, Y);  in mbedtls_des3_crypt_ecb()
702         DES_ROUND(X, Y);  in mbedtls_des3_crypt_ecb()
703         DES_ROUND(Y, X);  in mbedtls_des3_crypt_ecb()
707         DES_ROUND(Y, X);  in mbedtls_des3_crypt_ecb()
708         DES_ROUND(X, Y);  in mbedtls_des3_crypt_ecb()
711     DES_FP(Y, X);  in mbedtls_des3_crypt_ecb()
713     MBEDTLS_PUT_UINT32_BE(Y, output, 0);  in mbedtls_des3_crypt_ecb()