sha3-384.cpp

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/socket.h>
#include <linux/if_alg.h>
#include <linux/socket.h>

#define SHA384_DIGEST_SZ 48

int main(void) {
    sockaddr_alg
    sa
    {
        AF_ALG, "hash", 0, 0, "xilinx-keccak-384"
    };

    unsigned char digest[SHA384_DIGEST_SZ];
    char *input = "Hellhash"; /* Input Data should be multiple of 4-bytes */
    int i, sockfd, fd;

    sockfd = socket(AF_ALG, SOCK_SEQPACKET, 0);
    bind(sockfd, (sockaddr *) &sa, sizeof(sa));
    fd = accept(sockfd, NULL, 0);
    write(fd, input, strlen(input));
    read(fd, digest, SHA384_DIGEST_SZ);
    close(fd);
    close(sockfd);
    for (i = 0; i < SHA384_DIGEST_SZ; i++)
        printf("%02x", digest[i]);
    printf("\n");
    return 0;
}