Crypto++ RSA从字符串读取公私匙

string and StringSource (load)：

1.  
   string spki = ...;
2.  
   StringSource ss(spki, true /*pumpAll*/);
3.  
    
4.  
   RSA::PublicKey publicKey;
5.  
   publicKey.Load(ss);

vector and ArraySource (load)：

1.  
   vector<byte> spki = ...;
2.  
   ArraySource as(&spki[0], spki.length(), true /*pumpAll*/);
3.  
    
4.  
   RSA::PublicKey publicKey;
5.  
   publicKey.Load(as);

string and StringSink (save)

1.  
   string spki;
2.  
   StringSink ss(spki);
3.  
    
4.  
   RSA::PublicKey publicKey(...);
5.  
   publicKey.Save(ss);