f0ab104f070bc7f569404826fea1828ed985638cvboxsync/* Initialize SHA1 computation. Returns NULL on error. */
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Add some data to be hashed. ctx is the value returned by x_sha1_init()
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Returns 0 on error, 1 on success.
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Place the hash in result, and free ctx.
f0ab104f070bc7f569404826fea1828ed985638cvboxsync * Returns 0 on error, 1 on success.
f0ab104f070bc7f569404826fea1828ed985638cvboxsyncint x_sha1_final(void *ctx, unsigned char result[20]);