#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
#include <stdio.h>

#include "rnd.h"
#include "die.h"
#include "str.h"
#include "crypto.h"
#include "curve.h"
#include "ioops.h"
#include "config.h"
#include "keypair.h"

void generate_keypair(void)
{
	struct passwd *pw = getpwuid(getuid());
	unsigned char publickey[crypto_box_pub_key_size];
	unsigned char secretkey[crypto_box_sec_key_size];
	char file[128];

	xmemset(publickey, 0, sizeof(publickey));
	xmemset(secretkey, 0, sizeof(secretkey));

	curve25519_selftest();

	printf("Reading from %s (this may take a while) ...\n",
	       HIG_ENTROPY_SOURCE);

	gen_key_bytes(secretkey, sizeof(secretkey));
	crypto_scalarmult_curve25519_base(publickey, secretkey);

	slprintf(file, sizeof(file), "%s/%s", pw->pw_dir, FILE_PUBKEY);
	write_blob_or_die(file, publickey, sizeof(publickey));
	printf("Public key written to %s!\n", file);

	slprintf(file, sizeof(file), "%s/%s", pw->pw_dir, FILE_PRIVKEY);
	write_blob_or_die(file, secretkey, sizeof(secretkey));
	printf("Secret key written to %s!\n", file);

	xmemset(publickey, 0, sizeof(publickey));
	xmemset(secretkey, 0, sizeof(secretkey));
}

void verify_keypair(void)
{
	int result;
	struct passwd *pw = getpwuid(getuid());
	unsigned char publickey[crypto_box_pub_key_size];
	unsigned char publicres[crypto_box_pub_key_size];
	unsigned char secretkey[crypto_box_sec_key_size];
	char file[128];

	curve25519_selftest();

	xmemset(publickey, 0, sizeof(publickey));
	xmemset(publicres, 0, sizeof(publicres));
	xmemset(secretkey, 0, sizeof(secretkey));

	slprintf(file, sizeof(file), "%s/%s", pw->pw_dir, FILE_PUBKEY);
	read_blob_or_die(file, publickey, sizeof(publickey));

	slprintf(file, sizeof(file), "%s/%s", pw->pw_dir, FILE_PRIVKEY);
	read_blob_or_die(file, secretkey, sizeof(secretkey));

	crypto_scalarmult_curve25519_base(publicres, secretkey);
	result = crypto_verify_32(publicres, publickey);

	xmemset(publickey, 0, sizeof(publickey));
	xmemset(publicres, 0, sizeof(publicres));
	xmemset(secretkey, 0, sizeof(secretkey));

	if (result)
		panic("Keypair is corrupt! You need to regenerate!\n");
}
='hidden' name='id' value='c1fd5c30d1328e0a0c3aafc3768b9cea94d7b28f'/><select name='qt'>
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<div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='c1fd5c30d1328e0a0c3aafc3768b9cea94d7b28f'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Wang Xiaoguang &lt;wangxg.fnst@cn.fujitsu.com&gt;</td><td class='right'>2016-06-21 11:12:56 +0800</td></tr>
<tr><th>committer</th><td>David Sterba &lt;dsterba@suse.com&gt;</td><td class='right'>2016-07-26 13:52:25 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=c1fd5c30d1328e0a0c3aafc3768b9cea94d7b28f'>c1fd5c30d1328e0a0c3aafc3768b9cea94d7b28f</a> (<a href='/cgit.cgi/linux/net-next.git/patch/?id=c1fd5c30d1328e0a0c3aafc3768b9cea94d7b28f'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=c1fd5c30d1328e0a0c3aafc3768b9cea94d7b28f'>32d340377863ba39b53b06e996be0636fd69ecbd</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/?id=8b8b08cbfb9021af4b54b4175fc4c51d655aac8c'>8b8b08cbfb9021af4b54b4175fc4c51d655aac8c</a> (<a href='/cgit.cgi/linux/net-next.git/diff/?id=c1fd5c30d1328e0a0c3aafc3768b9cea94d7b28f&amp;id2=8b8b08cbfb9021af4b54b4175fc4c51d655aac8c'>diff</a>)</td></tr></table>
<div class='commit-subject'>btrfs: add missing bytes_readonly attribute file in sysfs</div><div class='commit-msg'>Signed-off-by: Wang Xiaoguang &lt;wangxg.fnst@cn.fujitsu.com&gt;
Signed-off-by: David Sterba &lt;dsterba@suse.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=c1fd5c30d1328e0a0c3aafc3768b9cea94d7b28f'>Diffstat</a></div><table summary='diffstat' class='diffstat'>