?? ctr_setiv.c
字號:
/* LibTomCrypt, modular cryptographic library -- Tom St Denis * * LibTomCrypt is a library that provides various cryptographic * algorithms in a highly modular and flexible manner. * * The library is free for all purposes without any express * guarantee it works. * * Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org */#include "mycrypt.h"#ifdef CTRint ctr_setiv(const unsigned char *IV, unsigned long len, symmetric_CTR *ctr){ int err; _ARGCHK(IV != NULL); _ARGCHK(ctr != NULL); /* bad param? */ if ((err = cipher_is_valid(ctr->cipher)) != CRYPT_OK) { return err; } if (len != (unsigned long)ctr->blocklen) { return CRYPT_INVALID_ARG; } /* set IV */ memcpy(ctr->ctr, IV, len); /* force next block */ ctr->padlen = 0; cipher_descriptor[ctr->cipher].ecb_encrypt(IV, ctr->pad, &ctr->key); return CRYPT_OK;}#endif
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -