openssl解密错误代码101560482解决方式

错误代码101560482是 OpenSSL 库的一个常见错误，通常是由于证书或密钥不匹配或格式不正确导致的。

以下是可能的解决方案：

1. 确认证书和密钥是否匹配，可以使用以下命令检查：

   openssl x509 -noout -modulus -in server.crt | openssl md5
   openssl rsa -noout -modulus -in server.key | openssl md5

如果两个命令输出的 MD5 值不同，则证书和密钥不匹配，需要重新生成或重新配置。

2. 确认证书和密钥的格式是否正确，OpenSSL 支持多种格式，例如 PEM、DER、PKCS#12 等。可以使用以下命令检查：

   openssl x509 -in server.crt -text -noout
   openssl rsa -in server.key -text -noout

如果命令输出的内容包含错误或异常，则证书或密钥格式可能不正确，需要重新生成或转换格式。

3. 确认 OpenSSL 版本是否支持所使用的算法，例如如果使用了较新的加密算法（如 AES-GCM），则需要 OpenSSL 1.1.0 或更高版本支持。

4. 确认 OpenSSL 配置是否正确，例如 OpenSSL 配置文件中的路径是否正确，是否存在必要的库和依赖项等。

希望这些解决方案能够帮助你解决问题。

相关问题

openssl私钥解密

### 使用 OpenSSL 进行私钥解密

为了展示如何使用 OpenSSL 库在 C++ 中执行私钥解密操作，可以参考如下示例代码。这段程序首先加载已有的 RSA 私钥文件，接着读取之前被公钥加密过的消息并尝试利用该私钥将其恢复成原始形式。

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

bool decryptWithPrivateKey(const unsigned char* encryptedData, int encryptedLen,
                           const char* privateKeyPath, std::string& decryptedText) {
    FILE* fp = fopen(privateKeyPath, "rb");
    if (!fp) return false;

    RSA* rsa = PEM_read_RSA_PUBKEY(fp, NULL, NULL, NULL);
    fclose(fp);

    if (rsa == nullptr){
        ERR_print_errors_fp(stderr);
        return false;
    }

    int keySize = RSA_size(rsa);
    unsigned char *decryptedMessage = new unsigned char[keySize];

    bool success = true;
    
    // Perform decryption using private key.
    int resultLength = RSA_private_decrypt(encryptedLen, encryptedData, decryptedMessage, rsa, RSA_PKCS1_PADDING);
    if(resultLength == -1){
        ERR_print_errors_fp(stderr);
        success = false;
    }else{
        decryptedText.assign(reinterpret_cast<char*>(decryptedMessage), resultLength);
    }
    
    delete[] decryptedMessage;
    RSA_free(rsa); 

    return success;  
}

上述函数接受四个参数：`encryptedData` 是要解码的数据；`encryptedLen` 表明这些数据的实际长度；`privateKeyPath` 指向存储着私钥的PEM格式文件路径；最后 `decryptedText` 将保存最终得到的结果字符串[^1]。

值得注意的是，在实际应用中应当更加注重错误处理以及资源管理（比如确保关闭打开的文件句柄），这里简化了一些细节以便突出主要逻辑流程。

此外，在 PHP 环境下也可以借助内置的 openssl 扩展完成相似的任务：

<?php
function decrypt_with_private_key($data, $privatekeyfile){
    $priv_key = file_get_contents($privatekeyfile);
    openssl_pkey_get_private($priv_key,$passphrase="");

    // Decrypt the data with the private key
    openssl_private_decrypt(base64_decode($data),$plaintext,$priv_key);

    echo "Decrypted text is : ".htmlspecialchars($plaintext)."\n";
}

// Example usage of function to demonstrate decryption process
$enc_data = '...'; // Encrypted string from client side or another source
$private_key_file_path = '/path/to/private.key';
decrypt_with_private_key($enc_data, $private_key_file_path);
?>

此段脚本定义了一个名为 `decrypt_with_private_key()` 的辅助方法用于接收编码后的密文和私钥位置作为输入，并输出解密之后的内容到屏幕上[^2]。

c++ openssl ecc算法大文件加密解密示例代码

下面是一个使用C++和OpenSSL库进行ECC算法大文件加密解密的示例代码：

#include <openssl/ec.h>
#include <openssl/ecdh.h>
#include <openssl/evp.h>
#include <openssl/pem.h>
#include <openssl/err.h>
#include <iostream>
#include <fstream>
#include <string>

using namespace std;

int main()
{
    // 1. 生成ECC密钥对
    EC_KEY *key = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
    if (key == NULL)
    {
        cout << "Error: Failed to create ECC key." << endl;
        return 1;
    }
    if (!EC_KEY_generate_key(key))
    {
        cout << "Error: Failed to generate ECC key." << endl;
        EC_KEY_free(key);
        return 1;
    }

    // 2. 保存私钥
    string privkey_filename = "ecc_private.pem";
    FILE *privkey_file = fopen(privkey_filename.c_str(), "w");
    if (privkey_file == NULL)
    {
        cout << "Error: Failed to create private key file." << endl;
        EC_KEY_free(key);
        return 1;
    }
    if (!PEM_write_ECPrivateKey(privkey_file, key, NULL, NULL, 0, NULL, NULL))
    {
        cout << "Error: Failed to write private key." << endl;
        fclose(privkey_file);
        EC_KEY_free(key);
        return 1;
    }
    fclose(privkey_file);

    // 3. 保存公钥
    string pubkey_filename = "ecc_public.pem";
    FILE *pubkey_file = fopen(pubkey_filename.c_str(), "w");
    if (pubkey_file == NULL)
    {
        cout << "Error: Failed to create public key file." << endl;
        EC_KEY_free(key);
        return 1;
    }
    if (!PEM_write_EC_PUBKEY(pubkey_file, key))
    {
        cout << "Error: Failed to write public key." << endl;
        fclose(pubkey_file);
        EC_KEY_free(key);
        return 1;
    }
    fclose(pubkey_file);

    // 4. 加密文件
    string plaintext_filename = "largefile.txt";
    string ciphertext_filename = "largefile.enc";
    ifstream plaintext_file(plaintext_filename, ios::in | ios::binary);
    if (!plaintext_file.is_open())
    {
        cout << "Error: Failed to open plaintext file." << endl;
        EC_KEY_free(key);
        return 1;
    }
    ofstream ciphertext_file(ciphertext_filename, ios::out | ios::binary);
    if (!ciphertext_file.is_open())
    {
        cout << "Error: Failed to create ciphertext file." << endl;
        plaintext_file.close();
        EC_KEY_free(key);
        return 1;
    }

    EVP_PKEY *evp_pubkey = EVP_PKEY_new();
    if (evp_pubkey == NULL)
    {
        cout << "Error: Failed to create EVP public key." << endl;
        plaintext_file.close();
        ciphertext_file.close();
        EC_KEY_free(key);
        return 1;
    }
    if (!EVP_PKEY_set1_EC_KEY(evp_pubkey, key))
    {
        cout << "Error: Failed to set EVP public key." << endl;
        plaintext_file.close();
        ciphertext_file.close();
        EVP_PKEY_free(evp_pubkey);
        EC_KEY_free(key);
        return 1;
    }

    EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
    if (ctx == NULL)
    {
        cout << "Error: Failed to create cipher context." << endl;
        plaintext_file.close();
        ciphertext_file.close();
        EVP_PKEY_free(evp_pubkey);
        EC_KEY_free(key);
        return 1;
    }
    if (!EVP_EncryptInit_ex(ctx, EVP_aes_256_cbc(), NULL, NULL, NULL))
    {
        cout << "Error: Failed to initialize encryption context." << endl;
        plaintext_file.close();
        ciphertext_file.close();
        EVP_PKEY_free(evp_pubkey);
        EC_KEY_free(key);
        EVP_CIPHER_CTX_free(ctx);
        return 1;
    }

    unsigned char plaintext_buffer[4096];
    unsigned char ciphertext_buffer[4096 + EVP_CIPHER_block_size(EVP_aes_256_cbc())];
    int num_bytes_read = 0;
    int ciphertext_len = 0;
    while ((num_bytes_read = plaintext_file.read((char *)plaintext_buffer, sizeof(plaintext_buffer)).gcount()) > 0)
    {
        if (!EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, NULL))
        {
            cout << "Error: Failed to reset encryption context." << endl;
            plaintext_file.close();
            ciphertext_file.close();
            EVP_PKEY_free(evp_pubkey);
            EC_KEY_free(key);
            EVP_CIPHER_CTX_free(ctx);
            return 1;
        }
        if (!EVP_EncryptInit_ex(ctx, NULL, NULL, EVP_PKEY_get0(evp_pubkey), NULL))
        {
            cout << "Error: Failed to set public key for encryption context." << endl;
            plaintext_file.close();
            ciphertext_file.close();
            EVP_PKEY_free(evp_pubkey);
            EC_KEY_free(key);
            EVP_CIPHER_CTX_free(ctx);
            return 1;
        }
        if (!EVP_EncryptUpdate(ctx, ciphertext_buffer, &ciphertext_len, plaintext_buffer, num_bytes_read))
        {
            cout << "Error: Failed to encrypt plaintext." << endl;
            plaintext_file.close();
            ciphertext_file.close();
            EVP_PKEY_free(evp_pubkey);
            EC_KEY_free(key);
            EVP_CIPHER_CTX_free(ctx);
            return 1;
        }
        ciphertext_file.write((char *)ciphertext_buffer, ciphertext_len);
    }
    if (!EVP_EncryptFinal_ex(ctx, ciphertext_buffer, &ciphertext_len))
    {
        cout << "Error: Failed to finalize encryption." << endl;
        plaintext_file.close();
        ciphertext_file.close();
        EVP_PKEY_free(evp_pubkey);
        EC_KEY_free(key);
        EVP_CIPHER_CTX_free(ctx);
        return 1;
    }
    ciphertext_file.write((char *)ciphertext_buffer, ciphertext_len);

    plaintext_file.close();
    ciphertext_file.close();
    EVP_PKEY_free(evp_pubkey);
    EC_KEY_free(key);
    EVP_CIPHER_CTX_free(ctx);

    // 5. 解密文件
    ifstream ciphertext_file2(ciphertext_filename, ios::in | ios::binary);
    if (!ciphertext_file2.is_open())
    {
        cout << "Error: Failed to open ciphertext file." << endl;
        return 1;
    }
    ofstream plaintext_file2("largefile.dec", ios::out | ios::binary);
    if (!plaintext_file2.is_open())
    {
        cout << "Error: Failed to create plaintext file." << endl;
        ciphertext_file2.close();
        return 1;
    }

    EVP_PKEY *evp_privkey = EVP_PKEY_new();
    if (evp_privkey == NULL)
    {
        cout << "Error: Failed to create EVP private key." << endl;
        ciphertext_file2.close();
        plaintext_file2.close();
        return 1;
    }
    if (!EVP_PKEY_set1_EC_KEY(evp_privkey, key))
    {
        cout << "Error: Failed to set EVP private key." << endl;
        ciphertext_file2.close();
        plaintext_file2.close();
        EVP_PKEY_free(evp_privkey);
        return 1;
    }

    ctx = EVP_CIPHER_CTX_new();
    if (ctx == NULL)
    {
        cout << "Error: Failed to create cipher context." << endl;
        ciphertext_file2.close();
        plaintext_file2.close();
        EVP_PKEY_free(evp_privkey);
        return 1;
    }
    if (!EVP_DecryptInit_ex(ctx, EVP_aes_256_cbc(), NULL, NULL, NULL))
    {
        cout << "Error: Failed to initialize decryption context." << endl;
        ciphertext_file2.close();
        plaintext_file2.close();
        EVP_PKEY_free(evp_privkey);
        EVP_CIPHER_CTX_free(ctx);
        return 1;
    }

    ciphertext_len = 0;
    int plaintext_len = 0;
    while ((ciphertext_file2.read((char *)ciphertext_buffer, sizeof(ciphertext_buffer)).gcount()) > 0)
    {
        if (!EVP_DecryptInit_ex(ctx, NULL, NULL, EVP_PKEY_get0(evp_privkey), NULL))
        {
            cout << "Error: Failed to set private key for decryption context." << endl;
            ciphertext_file2.close();
            plaintext_file2.close();
            EVP_PKEY_free(evp_privkey);
            EVP_CIPHER_CTX_free(ctx);
            return 1;
        }
        if (!EVP_DecryptUpdate(ctx, plaintext_buffer, &plaintext_len, ciphertext_buffer, ciphertext_file2.gcount()))
        {
            cout << "Error: Failed to decrypt ciphertext." << endl;
            ciphertext_file2.close();
            plaintext_file2.close();
            EVP_PKEY_free(evp_privkey);
            EVP_CIPHER_CTX_free(ctx);
            return 1;
        }
        plaintext_file2.write((char *)plaintext_buffer, plaintext_len);
    }
    if (!EVP_DecryptFinal_ex(ctx, plaintext_buffer, &plaintext_len))
    {
        cout << "Error: Failed to finalize decryption." << endl;
        ciphertext_file2.close();
        plaintext_file2.close();
        EVP_PKEY_free(evp_privkey);
        EVP_CIPHER_CTX_free(ctx);
        return 1;
    }
    plaintext_file2.write((char *)plaintext_buffer, plaintext_len);

    ciphertext_file2.close();
    plaintext_file2.close();
    EVP_PKEY_free(evp_privkey);
    EVP_CIPHER_CTX_free(ctx);

    cout << "ECC encryption and decryption completed successfully." << endl;

    return 0;
}

注意：为了简化代码，这里没有进行错误处理和参数检查，实际应用中需要根据需要进行适当的错误处理和参数检查。