/// <summary>
/// 设置用户公钥私钥
/// </summary>
/// <param name="username"></param>
/// <param name="password"></param>
/// <returns></returns>
private user SetUserKey(string username, string password)
{
TanSM3Ex sm3 = new TanSM3Ex();
string digest = sm3.TanGetDigest(password);
TanSM2Ex sm2 = new TanSM2Ex();
sm2.TanGenSM2KeyPair();
string pubkey = sm2.publicKey;
string prvkey = sm2.privateKey;
user u = getUser(username);
if (u == null)
{
u = new user();
}
u.username = username;
u.password = digest;
u.pubkey = pubkey;
u.prikey = prvkey;
return(u);
}
/// <summary>
/// 签名
/// </summary>
/// <param name="username"></param>
/// <param name="msg"></param>
/// <returns></returns>
public string sign(string username, string msg)
{
// string result = "";
try
{
user u = db.Queryable <user>()
.Where(d => d.username == username)
.FirstOrDefault();
if (u == null)
{
return("");
}
TanSM2Ex sm2 = new TanSM2Ex();
string sig = "";
sm2.TanSM2Sign(msg, u.prikey, out sig);
return(sig);
}
catch (Exception)
{
return("");
}
}
/// <summary>
/// 签名验证
/// </summary>
/// <param name="username"></param>
/// <param name="msg"></param>
/// <param name="sig"></param>
/// <returns></returns>
public bool verify(string username, string msg, string sig)
{
bool flag = false;
try
{
user u = db.Queryable <user>()
.Where(d => d.username == username)
.FirstOrDefault();
if (u == null)
{
return(false);
}
TanSM2Ex sm2 = new TanSM2Ex();
flag = sm2.TanSM2Verify(msg, u.pubkey, sig);
return(flag);
}
catch (Exception)
{
return(false);
}
}
/// <summary>
/// 设置用户公钥私钥并重置密码
/// </summary>
/// <param name="id">用户id</param>
/// <param name="password">用户密码</param>
/// <returns></returns>
public user SetUserKey(string password, string id)
{
TanSM3Ex sm3 = new TanSM3Ex();
string digest = sm3.TanGetDigest(password);
TanSM2Ex sm2 = new TanSM2Ex();
sm2.TanGenSM2KeyPair();
string pubkey = sm2.publicKey;
string prvkey = sm2.privateKey;
user u = getEntityById(Convert.ToInt32(id));
if (u.password != digest)
{
u.password = digest;
}
if (u == null)
{
u = new user() as user;
}
u.pubkey = pubkey;
u.prikey = prvkey;
return(u as user);
}
