openssl RSA 内存读取密钥

#include <openssl/pem.h>
#include <openssl/err.h>

bool CEncipher::CreatePubKey()
{
BIO* bp = NULL;
string strPublicKey = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCmm9GRVbi5+myHYztzOyWvMdo1\
4b0fwRF3va9A8bd19oW9ZUCpALVIC4d4I1Zvkfcgnpvswf/DOHD9umT+pevmwICF\
/mU8LNe/MT8kGh0IAIHdJVrXw/2TEWCVEgFlFfloWzCNmzOcx4BH8yIw50RjG1ED\
5Fl5QKFrirgcU11IhQIDAQAB";
int nPublicKeyLen = strPublicKey.size();
for(int i = 64; i < nPublicKeyLen; i+=64)
{
if(strPublicKey[i] != '\n')
{
strPublicKey.insert(i, "\n");
}
i++;
}
strPublicKey.insert(0, "-----BEGIN PUBLIC KEY-----\n");
strPublicKey.append("\n-----END PUBLIC KEY-----\n");

char *chPublicKey = const_cast<char *>(strPublicKey.c_str());
if ((bp = BIO_new_mem_buf(chPublicKey, -1)) == NULL)
{
printf("BIO_new_mem_buf failed!\n");
return false;
}

pPubKey_ = PEM_read_bio_RSA_PUBKEY(bp, NULL, NULL, NULL);

if (NULL == pPubKey_)
{
ERR_load_crypto_strings();
char errBuf[512];
ERR_error_string_n(ERR_get_error(), errBuf, sizeof(errBuf));
printf("load public key failed[%s]\n", errBuf);
return false;
}
BIO_free_all(bp);

return true;
}