RSA * rsa = RSA_new(); RSA_free( rsa ); CRYPTO_cleanup_all_ex_data(); 这样就没有内存泄漏了。 需要注意的是,CRYPTO_cleanup_all_ex_data()不能在potential race-conditions条件在调用(不太懂这个术语,我理解的意思是当函数外部存在RSA结构体的时候,在函数内部执行CRYPTO_cleanup_all_ex_data()将导致...
RSA rsaKey=RSA_generate_key(keyBits,65537,NULL,NULL); RSA_free(rsaKey); 便可以生成rsaKey,内存泄露是指针rsaKey 指向RSA_new()申请的空间,但是 第二句将rsaKey 重新赋值,导致RSA_new()申请的空间泄露,导致错误的发生。这里要注意RSA openssl 库的具体用法,避免类似错误的产生。
RSA_public_encrypt(select, (from + readLen), (unsigned char *)to.data(), rsa, RSA_PKCS1_PADDING); dataLen -= select; readLen += select; out.append(to); }while (dataLen > 0); RSA_free(rsa); return true; } /** * @brief RSAC::private_decrypt * RSA解密函数,使用私钥对输入数...
67 p_de=(unsigned char *)malloc(rsa_len+1); 68 memset(p_de,0,rsa_len+1); 69 if(RSA_private_decrypt(rsa_len,(unsigned char *)str,(unsigned char*)p_de,p_rsa,RSA_NO_PADDING)<0){ 70 return NULL; 71 } 72 RSA_free(p_rsa); 73 fclose(file); 74 return p_de; 75 } 1. 2...
//释放一个RSA结构 void RSA_free(RSA *rsa); 看到这里,也许你就会明白我今天要讲的主题了,既然这些“生成”API提供了返回指针类型的功能,那么很明显指针所指向内容的存储空间,必定是在openssl内部通过malloc等动态内存申请的方式获取的;所以在使用了这段内存后,自然而然就是要执行内存释放的动作,这与C语言动态内...
{perror("RSA_public_encrypt() error\n");gotoEnd;}End://6.释放秘钥空间, 关闭文件if(p_rsa)RSA_free(p_rsa);if(file)fclose(file);returnp_en;}//解密char*my_decrypt(char*str,char*path_key){char*p_de=NULL;RSA*p_rsa=NULL;FILE*file=NULL;intrsa_len=0;// printf("文件名:%s\n", ...
//设置大数 RSA_generate_key_ex(m_rsa,m_rsa_bit,m_bigNum,NULL); //生成密钥 } RSAKey::~RSAKey() { RSA_free(m_rsa); RSA_free(m_pubKey); RSA_free(m_privateKey); BN_free(m_bigNum); } void RSAKey::UsePrivateRSAKeyDecode(char* dsc,char* src) { int rsa_len = RSA_size(m_...
if (1 != PEM_write_bio_RSAPublicKey(bp, rsa)) { TRACE(_T("write public key error\n")); return FALSE; } TRACE(_T("保存公钥成功\n")); BIO_free_all(bp); char passwd[]="1234"; // 私钥 // bp = BIO_new_file("private.pem", "w"); ...
18、(unsigned char*)p_De,p_Rsa,RSA_NO_PADDING)<0)109 return NULL;110 111112 RSA_free(p_Rsa);113 fclose(file);114115 return p_De;116 4 19、. linux下编译gcc myRSA.c -o exe -lssl1)如果出现如openssl/rsa.h : no such file or direction,则需要安装openssl-develsudo yum install openss...
RSA_free(rsa); return result; } @bernd-edlinger Why is that? In this case how could I implement the scenario when I want to send the content that recipient knows for 100% that it's from me? So far I was giving him a public key. One day when he received a content encrypted by ...