寻求萨尔萨20

时间:2012-08-01 07:24:39

标签: c cryptography

使用Salsa20,如何寻找字节位置(假设它是64的倍数)(使用http://cr.yp.to/snuffle/salsa20/merged/salsa20.c处的公共域C实现

我试过这个,但它不起作用:

void seekIV(unsigned long int pos) {
int low_32bits, high_32bits;

pos /= 64;

low_32bits = pos & 0xffffffff;
high_32bits = (pos >> 32) & 0xffffffff;

printf("\n SEEKING TO %lu\n", pos * 64);

ctx.input[8] = low_32bits;
ctx.input[9] = high_32bits;
}

1 个答案:

答案 0 :(得分:0)

D'OH ......答案是......我忘了也在流中找到了;)