final functions as well
int HASH_Final(CRYPTO_CTX *ctx, unsigned char *md, unsigned int len)
{
memcpy(md, ctx->mac, len);
return !cryptodev_close(ctx);
}
On 07/09/10 10:02, Kasatkin Dmitry (Nokia-MS/Helsinki) wrote:
> Please look to patch description.
>
> normally OpenSSL API use looks like:
>
> http://www.openssl.org/docs/crypto/sha.html#
>
>
> SHA1_Init()
> SHA1_Update()
> ...
> ..
> SHA1_Update()
> SHA1_Final()
>
>
> This is how openssl like api looks like
>
>
> int cryptodev_open(CRYPTO_CTX *ctx)
> {
> /* Open the crypto device */
> ctx->fd = open("/dev/crypto", O_RDWR, 0);
> if (ctx->fd < 0) {
> perror("open(/dev/crypto)");
> return 1;
> }
>
> /* Clone file descriptor */
> if (ioctl(ctx->fd, CRIOGET, &ctx->cfd)) {
> perror("ioctl(CRIOGET)");
> return 1;
> }
>
> /* Set close-on-exec (not really neede here) */
> if (fcntl(ctx->cfd, F_SETFD, 1) == -1) {
> perror("fcntl(F_SETFD)");
> return 1;
> }
>
> return 0;
> }
>
> int cryptodev_close(CRYPTO_CTX *ctx)
> {
> /* Finish crypto session */
> if (ioctl(ctx->cfd, CIOCFSESSION, &ctx->sess.ses)) {
> perror("ioctl(CIOCFSESSION)");
> return 1;
> }
>
> /* Close cloned descriptor */
> if (close(ctx->cfd)) {
> perror("close(cfd)");
> return 1;
> }
>
> /* Close the original descriptor */
> if (close(ctx->fd)) {
> perror("close(fd)");
> return 1;
> }
> return 0;
> }
>
> int HASH_Init(SHA_CTX *ctx, int mac)
> {
> if (cryptodev_open(ctx))
> return 0;
>
> /* SHA1 plain test */
> memset(&ctx->sess, 0, sizeof(ctx->sess));
>
> ctx->sess.cipher = 0;
> ctx->sess.mac = mac;
> if (ioctl(ctx->cfd, CIOCGSESSION, &ctx->sess)) {
> perror("ioctl(CIOCGSESSION)");
> return 0;
> }
>
> return 1;
> }
>
> int HASH_Update(SHA_CTX *ctx, const void *data, unsigned long len)
> {
> struct crypt_op cryp;
>
> cryp.ses = ctx->sess.ses;
> cryp.len = len;
> cryp.src = (void *)data;
> cryp.mac = ctx->mac;
> cryp.op = COP_ENCRYPT;
> cryp.flags = COP_FLAG_UPDATE;
>
> if (ioctl(ctx->cfd, CIOCCRYPT, &cryp)) {
> perror("ioctl(CIOCCRYPT)");
> return 0;
> }
>
> return 1;
> }
>
>
> Dmitry Kasatkin (1):
> multi-update support for hash calculation
>
> cryptodev.h | 1 +
> cryptodev_main.c | 15 +++++++++------
> 2 files changed, 10 insertions(+), 6 deletions(-)
>
>
> _______________________________________________
> Cryptodev-linux-devel mailing list
> Cryptodev-linux-devel@gna.org
> https://mail.gna.org/listinfo/cryptodev-linux-devel
>
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