密码库LibTomCrypt学习记录——（2.3）分组密码算法的工作模式——ECB代码示例

2023-10-28 18:48
文章标签 算法 代码 学习 模式 工作 分组 记录 密码 示例 2.3 ecb libtomcrypt

本文主要是介绍密码库LibTomCrypt学习记录——（2.3）分组密码算法的工作模式——ECB代码示例，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

以下代码实现了AES-ECB的正确性测试（标准测试数据），以及性能测试

说明：

1. 代码里面使用了一个Str2Num函数，它将测试向量中的字符串转为十六进制字节数据，可自行实现。

2. 测试向量出处为NIST SP 800-38A (Recommendation for Block Cipher  Modes of Operation：Methods and Techniques)

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                                                          Test_ECB_AES.h

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#include <Windows.h>
#include "tomcrypt.h"
#include "TestMode.h"
 
typedef struct NistECBTestVector_st{
    char *    name;//test vetor name
    int        keylen;
    int        msglen;
    BYTE *    key[1];    // 密钥
    BYTE *    IV[1];    // 初始化向量
    BYTE *    pt[4];    //    明文，暂时最多支持四段明文
    BYTE *    ct[4];    //    密文，暂时最多支持四段明文
    
    BYTE *    nonce[1];
    BYTE *    associated_data[1];
    BYTE *    mac[1];
} NistECBTestVector; 

    //    数据来源 
    //    NIST SP 800-38A (Recommendation for Block Cipher  Modes of Operation：Methods and Techniques).pdf
    NistECBTestVector ecb_vect[] = {
        {//vect[0] 
            /*name*/    "F.1.1 key=128 Encrypt",
            /*keylen*/    16, 
            /*msglen*/    16*4,
            /*Key*/        "2b7e151628aed2a6abf7158809cf4f3c",
            /*IV */        "",//ECB无初始化向量
            {// pt 
                "6bc1bee22e409f96e93d7e117393172a",
                "ae2d8a571e03ac9c9eb76fac45af8e51",
                "30c81c46a35ce411e5fbc1191a0a52ef",
                "f69f2445df4f9b17ad2b417be66c3710"
            },
            {//ct
                "3ad77bb40d7a3660a89ecaf32466ef97",
                "f5d3d58503b9699de785895a96fdbaaf",
                "43b1cd7f598ece23881b00e3ed030688",
                "7b0c785e27e8ad3f8223207104725dd4"
            }
        },
        //
        {//vect[1] 
            /*name*/    "F.1.2 key=128 Decrypt",
            /*keylen*/    16, 
            /*msglen*/    16*4,
            /*Key*/        "2b7e151628aed2a6abf7158809cf4f3c",
            /*IV */        "",//ECB无初始化向量
            {//ct    //解密时明文密文相反而已
                "3ad77bb40d7a3660a89ecaf32466ef97",
                "f5d3d58503b9699de785895a96fdbaaf",
                "43b1cd7f598ece23881b00e3ed030688",
                "7b0c785e27e8ad3f8223207104725dd4"
            },
            {// pt     //解密时明文密文相反而已
                "6bc1bee22e409f96e93d7e117393172a",
                "ae2d8a571e03ac9c9eb76fac45af8e51",
                "30c81c46a35ce411e5fbc1191a0a52ef",
                "f69f2445df4f9b17ad2b417be66c3710"
            }
        },
        //
        {//vect[2]
            /*name*/    "F.1.3 key=192 Encrypt",
            /*keylen*/    24, 
            /*msglen*/    16*4,
            /*Key*/        "8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b",
            /*IV */        "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
            {// pt 
                "6bc1bee22e409f96e93d7e117393172a",
                "ae2d8a571e03ac9c9eb76fac45af8e51",
                "30c81c46a35ce411e5fbc1191a0a52ef",
                "f69f2445df4f9b17ad2b417be66c3710"
            },
            {//ct
                "bd334f1d6e45f25ff712a214571fa5cc",
                "974104846d0ad3ad7734ecb3ecee4eef",
                "ef7afd2270e2e60adce0ba2face6444e",
                "9a4b41ba738d6c72fb16691603c18e0e"
            }
        },
            //
        {//vect[3] 
            /*name*/    "F.1.4 key=192 Decrypt",
            /*keylen*/    24, 
            /*msglen*/    16*4,
            /*Key*/        "8e73b0f7da0e6452c810f32b809079e562f8ead2522c6b7b",
            /*IV */        "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
            {//ct    //解密时明文密文相反而已
                "bd334f1d6e45f25ff712a214571fa5cc",
                "974104846d0ad3ad7734ecb3ecee4eef",
                "ef7afd2270e2e60adce0ba2face6444e",
                "9a4b41ba738d6c72fb16691603c18e0e"
            },
            {// pt     //解密时明文密文相反而已
                "6bc1bee22e409f96e93d7e117393172a",
                "ae2d8a571e03ac9c9eb76fac45af8e51",
                "30c81c46a35ce411e5fbc1191a0a52ef",
                "f69f2445df4f9b17ad2b417be66c3710"
            }
        },
        // 
        {//vect[4]
            /*name*/    "F.1.5 key=256 Encrypt",
            /*keylen*/    32, 
            /*msglen*/    16*4,
            /*Key*/        "603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4",
            /*IV */        "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
            {// pt 
                "6bc1bee22e409f96e93d7e117393172a",
                "ae2d8a571e03ac9c9eb76fac45af8e51",
                "30c81c46a35ce411e5fbc1191a0a52ef",
                "f69f2445df4f9b17ad2b417be66c3710"
            },
            {//ct
                "f3eed1bdb5d2a03c064b5a7e3db181f8",
                "591ccb10d410ed26dc5ba74a31362870",
                "b6ed21b99ca6f4f9f153e7b1beafed1d",
                "23304b7a39f9f3ff067d8d8f9e24ecc7"
            }
        },
            //
        {//vect[5] 
            /*name*/    "F.1.6 key=256 Decrypt",
            /*keylen*/    32, 
            /*msglen*/    16*4,
            /*Key*/        "603deb1015ca71be2b73aef0857d77811f352c073b6108d72d9810a30914dff4",
            /*IV */        "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
            {//ct    //解密时明文密文相反而已
                "f3eed1bdb5d2a03c064b5a7e3db181f8",
                "591ccb10d410ed26dc5ba74a31362870",
                "b6ed21b99ca6f4f9f153e7b1beafed1d",
                "23304b7a39f9f3ff067d8d8f9e24ecc7"
            },
            {// pt     //解密时明文密文相反而已
                "6bc1bee22e409f96e93d7e117393172a",
                "ae2d8a571e03ac9c9eb76fac45af8e51",
                "30c81c46a35ce411e5fbc1191a0a52ef",
                "f69f2445df4f9b17ad2b417be66c3710"
            }
        }
    }; 

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                                                          Test_ECB_AES.cpp

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#include <Windows.h>
#include "tomcrypt.h"
#include "TestMode.h"
#include "Test_ECB_AES.h"
  
 
int Test_ECB_AES_Alg(void)
{
    int idx, err, i, res;
    BYTE buf[64];
    symmetric_ECB ctr;
    int keylen, msglen;
    BYTE key[32], IV[16], pt[64], ct[64];
    char *p_operate;
    IV[0] = 0;

    /* AES can be under rijndael or aes... try to find it */ 
    if ( register_cipher (&aes_desc) != CRYPT_OK ) {     return CRYPT_INVALID_CIPHER; }
    if ((idx = find_cipher("aes")) == -1)  {      return CRYPT_NOP; }
    printf("\nTest ECB AES Begin!\n" );
    for ( i = 0; i < (int)(sizeof(ecb_vect)/sizeof(ecb_vect[0])); i++ )
    {
        keylen = ecb_vect[i].keylen;
        msglen = ecb_vect[i].msglen;

        Str2Num(ecb_vect[i].key, 1, key);
//        ChangeText(vect[i].IV, 1, IV);
        Str2Num(ecb_vect[i].pt, 4, pt);
        Str2Num(ecb_vect[i].ct, 4, ct);

        if ((err = ecb_start(idx, key, keylen, 0, &ctr)) != CRYPT_OK)
        {
            return err;
        }

        p_operate = ecb_vect[i].name + strlen(ecb_vect[i].name) - strlen("Encrypt");
        if (strcmp( p_operate, "Encrypt") == 0 )
        {
            if ((err = ecb_encrypt( pt, buf, msglen, &ctr)) != CRYPT_OK) 
            {
                return err;
            }
        }
        else if (strcmp( p_operate, "Decrypt") == 0 )
        {
            if ((err = ecb_decrypt( pt, buf, msglen, &ctr)) != CRYPT_OK) 
            {
                return err;
            }
        }
        else
        {
            printf("Test Vetor : operate err!  %s \n",ecb_vect[i].name );
        }
        
        ecb_done(&ctr);

        res = XMEMCMP(buf, ct, msglen);
        printf("Test Vetor : %s pass ? %s \n",ecb_vect[i].name, (res == 0)?"Yes":"No" );
    }
    unregister_cipher (&aes_desc);

    printf("\nTest ECB AES Finish!\n" );
    return CRYPT_OK; 
}  
//
int Test_ECB_AES_Speed(char *p_cipher_name )//test speed
{ 
    int idx, err, i, res = 0,counter, counter_bound = 1000*1000*10;
    BYTE buf[64];
    symmetric_ECB ctr;
    int keylen, msglen, len;
    BYTE key[32], IV[16], pt[64], ct[64];
    char *p_operate;
    LARGE_INTEGER frequence, start_time, end_time, cost_time;
    double use_time;
    double speed;
//    const struct ltc_cipher_descriptor *p_alg_desc = (&aes_desc);

    QueryPerformanceFrequency( &frequence);
    IV[0] = 0;

    /* AES can be under rijndael or aes... try to find it */ 
//    if ( register_cipher (p_alg_desc) != CRYPT_OK ) {    return CRYPT_INVALID_CIPHER; }
//    if ((idx = find_cipher(p_alg_desc->name)) == -1)  {    return CRYPT_NOP; } 
    if ((idx = find_cipher(p_cipher_name)) == -1)    
    {
        printf("\nTest ECB Speed Err! Not Find Cipher %s\n", p_cipher_name );    
        return CRYPT_NOP; 
    }  

    

    printf("Test ECB Speed Begin ! Use Alg %s\n", p_cipher_name );    

    for ( i = 0; i < (int)(sizeof(ecb_vect)/sizeof(ecb_vect[0])); i++ )
    {
        keylen = ecb_vect[i].keylen;
        msglen = ecb_vect[i].msglen;
        len = cipher_descriptor[idx].block_length;
        Str2Num(ecb_vect[i].key, 1, key);
//        ChangeText(vect[i].IV, 1, IV);
        Str2Num(ecb_vect[i].pt, 4, pt);
        Str2Num(ecb_vect[i].ct, 4, ct);
        if (keylen > cipher_descriptor[idx].max_key_length)
        {
            keylen = cipher_descriptor[idx].max_key_length;//
        }
        if (keylen < cipher_descriptor[idx].min_key_length)
        {
            keylen = cipher_descriptor[idx].min_key_length;//
        }

        if ((err = ecb_start(idx, key, keylen, 0, &ctr)) != CRYPT_OK)
        {
             break;//return err;
        }

        p_operate = ecb_vect[i].name + strlen(ecb_vect[i].name) - strlen("Encrypt");
        if (strcmp( p_operate, "Encrypt") == 0 )
        { 
            memcpy(buf, pt, 64);
            QueryPerformanceCounter(&start_time); // cost time
            for (counter = 0; counter < counter_bound; ++counter) 
            {
                ecb_encrypt(buf, buf, /*16*/len, &ctr);
            } 
            QueryPerformanceCounter(&end_time);// cost time
            cost_time.QuadPart = end_time.QuadPart - start_time.QuadPart;
        }
        else if (strcmp( p_operate, "Decrypt") == 0 )
        {
            memcpy(buf, pt, 64);
            QueryPerformanceCounter(&start_time); // cost time
            for (counter = 0; counter < counter_bound; ++counter ) 
            {
                ecb_decrypt(buf, buf, /*16*/len, &ctr);
            }
            QueryPerformanceCounter(&end_time);// cost time
            cost_time.QuadPart = end_time.QuadPart - start_time.QuadPart;
        }
        else
        {
            printf("Test Vector : operate err!  %s \n",ecb_vect[i].name );
        }
        
        ecb_done(&ctr);

//        res = XMEMCMP(buf, ct, msglen);
        use_time = cost_time.QuadPart / (double)(frequence.QuadPart);
        speed = ( counter_bound / 1000000 ) * len * 8 / use_time ;
        printf("%s key = %d, cost %8.3f s, speed %8.3f mbps \n", p_operate, keylen, use_time, speed);
    }

    printf("Test ECB Speed Finish! Use Alg %s\n", p_cipher_name );
    printf("\n###############################################\n\n", p_cipher_name );
    return CRYPT_OK; 
}


void register_algs(void)
{ 
    register_cipher (&aes_desc);//
    register_cipher (&blowfish_desc);//
    register_cipher (&xtea_desc);
    register_cipher (&rc5_desc);
    register_cipher (&rc6_desc);
//    register_cipher (&saferp_desc);//
     register_cipher (&twofish_desc);//
//     register_cipher (&safer_k64_desc);
//     register_cipher (&safer_sk64_desc);
//     register_cipher (&safer_k128_desc);
//     register_cipher (&safer_sk128_desc);
    register_cipher (&rc2_desc);
    register_cipher (&des_desc);//
    register_cipher (&des3_desc);//
    register_cipher (&cast5_desc);//
    register_cipher (&noekeon_desc);
    register_cipher (&skipjack_desc);
    register_cipher (&khazad_desc);//
    register_cipher (&anubis_desc); //
    register_cipher (&kseed_desc);//
    register_cipher (&kasumi_desc); //
//    register_cipher (&multi2_desc); //
}

int Test_ECB_AES(void)
{
//    Test_ECB_AES_Alg( );
    
    int i = 0;
    register_algs( );


    for ( i = 0;i<TAB_SIZE;i++)
    {
        if (cipher_descriptor[i].name != NULL )
        {     
            Test_ECB_AES_Speed( cipher_descriptor[i].name );
        }
    }

    return 1;
}

ecb\ecb_XXX.c
/**
   Initialize a ECB context
   @param cipher      The index of the cipher desired
   @param key         The secret key 
   @param keylen      The length of the secret key (octets)
   @param num_rounds  Number of rounds in the cipher desired (0 for default)
   @param ecb         The ECB state to initialize
   @return CRYPT_OK if successful
*/
int ecb_start(int cipher, const unsigned char *key, int keylen, int num_rounds, symmetric_ECB *ecb)
{
   int err;
   LTC_ARGCHK(key != NULL);
   LTC_ARGCHK(ecb != NULL);

   if ((err = cipher_is_valid(cipher)) != CRYPT_OK) {
      return err;
   }
   ecb->cipher = cipher;
   ecb->blocklen = cipher_descriptor[cipher].block_length;
   return cipher_descriptor[cipher].setup(key, keylen, num_rounds, &ecb->key);
}
 


/**
  ECB encrypt
  @param pt     Plaintext
  @param ct     [out] Ciphertext
  @param len    The number of octets to process (must be multiple of the cipher block size)
  @param ecb    ECB state
  @return CRYPT_OK if successful
*/
int ecb_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_ECB *ecb)
{
   int err;
   LTC_ARGCHK(pt != NULL);
   LTC_ARGCHK(ct != NULL);
   LTC_ARGCHK(ecb != NULL);
   if ((err = cipher_is_valid(ecb->cipher)) != CRYPT_OK) {
       return err;
   }
   if (len % cipher_descriptor[ecb->cipher].block_length) {
      return CRYPT_INVALID_ARG;
   }

   /* check for accel */
   if (cipher_descriptor[ecb->cipher].accel_ecb_encrypt != NULL) {
      return cipher_descriptor[ecb->cipher].accel_ecb_encrypt(pt, ct, len / cipher_descriptor[ecb->cipher].block_length, &ecb->key);
   } else {
      while (len) {
         if ((err = cipher_descriptor[ecb->cipher].ecb_encrypt(pt, ct, &ecb->key)) != CRYPT_OK) {
            return err;
         }
         pt  += cipher_descriptor[ecb->cipher].block_length;
         ct  += cipher_descriptor[ecb->cipher].block_length;
         len -= cipher_descriptor[ecb->cipher].block_length;
      }
   }
   return CRYPT_OK;
}


/**
  ECB decrypt
  @param ct     Ciphertext
  @param pt     [out] Plaintext
  @param len    The number of octets to process (must be multiple of the cipher block size)
  @param ecb    ECB state
  @return CRYPT_OK if successful
*/
int ecb_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_ECB *ecb)
{
   int err;
   LTC_ARGCHK(pt != NULL);
   LTC_ARGCHK(ct != NULL);
   LTC_ARGCHK(ecb != NULL);
   if ((err = cipher_is_valid(ecb->cipher)) != CRYPT_OK) {
       return err;
   }
   if (len % cipher_descriptor[ecb->cipher].block_length) {
      return CRYPT_INVALID_ARG;
   }

   /* check for accel */
   if (cipher_descriptor[ecb->cipher].accel_ecb_decrypt != NULL) {
      return cipher_descriptor[ecb->cipher].accel_ecb_decrypt(ct, pt, len / cipher_descriptor[ecb->cipher].block_length, &ecb->key);
   } else {
      while (len) {
         if ((err = cipher_descriptor[ecb->cipher].ecb_decrypt(ct, pt, &ecb->key)) != CRYPT_OK) {
            return err;
         }
         pt  += cipher_descriptor[ecb->cipher].block_length;
         ct  += cipher_descriptor[ecb->cipher].block_length;
         len -= cipher_descriptor[ecb->cipher].block_length;
      }
   }
   return CRYPT_OK;
}


/** Terminate the chain
  @param ecb    The ECB chain to terminate
  @return CRYPT_OK on success
*/
int ecb_done(symmetric_ECB *ecb)
{
   int err;
   LTC_ARGCHK(ecb != NULL);

   if ((err = cipher_is_valid(ecb->cipher)) != CRYPT_OK) {
      return err;
   }
   cipher_descriptor[ecb->cipher].done(&ecb->key);
   return CRYPT_OK;
}

   

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《Java接口定义变量的示例代码》文章介绍了Java接口中的变量和方法,接口中的变量必须是publicstaticfinal的,用于定义常量,而方法默认是publicabstract的,必须由实现类... 在 Java 中，接口是一种抽象类型，用于定义类必须实现的方法。接口可以包含常量和方法，但不能包含实例
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使用Redis实现会话管理的示例代码

使用Redis实现会话管理的示例代码

《使用Redis实现会话管理的示例代码》文章介绍了如何使用Redis实现会话管理,包括会话的创建、读取、更新和删除操作,通过设置会话超时时间并重置,可以确保会话在用户持续活动期间不会过期,此外,展示了... 目录1. 会话管理的基本概念2. 使用Redis实现会话管理2.1 引入依赖2.2 会话管理基本操作
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mybatis-plus分表实现案例(附示例代码)

mybatis-plus分表实现案例(附示例代码)

《mybatis-plus分表实现案例(附示例代码)》MyBatis-Plus是一个MyBatis的增强工具,在MyBatis的基础上只做增强不做改变,为简化开发、提高效率而生,：本文主要介绍my... 目录文档说明数据库水平分表思路1. 为什么要水平分表2. 核心设计要点3.基于数据库水平分表注意事项示例
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Mybatis的mapper文件中#和$的区别示例解析

Mybatis的mapper文件中#和$的区别示例解析

《Mybatis的mapper文件中#和$的区别示例解析》MyBatis的mapper文件中,#{}和${}是两种参数占位符,核心差异在于参数解析方式、SQL注入风险、适用场景,以下从底层原理、使用场... 目录MyBATis 中 mapper 文件里 #{} 与 ${} 的核心区别一、核心区别对比表二、底
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Nginx服务器部署详细代码实例

Nginx服务器部署详细代码实例

《Nginx服务器部署详细代码实例》Nginx是一个高性能的HTTP和反向代理web服务器,同时也提供了IMAP/POP3/SMTP服务,：本文主要介绍Nginx服务器部署的相关资料,文中通过代码... 目录Nginx 服务器SSL/TLS 配置动态脚本反向代理总结Nginx 服务器Nginx是一个‌高性
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HTML5的input标签的`type`属性值详解和代码示例

HTML5的input标签的`type`属性值详解和代码示例

《HTML5的input标签的`type`属性值详解和代码示例》HTML5的`input`标签提供了多种`type`属性值,用于创建不同类型的输入控件,满足用户输入的多样化需求,从文本输入、密码输入、... 目录一、引言二、文本类输入类型2.1 text2.2 password2.3 textarea（严格
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MySQL中between and的基本用法、范围查询示例详解

MySQL中between and的基本用法、范围查询示例详解

《MySQL中betweenand的基本用法、范围查询示例详解》BETWEENAND操作符在MySQL中用于选择在两个值之间的数据,包括边界值,它支持数值和日期类型,示例展示了如何使用BETWEEN... 目录一、between and语法二、使用示例2.1、betwphpeen and数值查询2.2、be
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python中的flask_sqlalchemy的使用及示例详解

python中的flask_sqlalchemy的使用及示例详解

《python中的flask_sqlalchemy的使用及示例详解》文章主要介绍了在使用SQLAlchemy创建模型实例时,通过元类动态创建实例的方式,并说明了如何在实例化时执行__init__方法,... 目录@orm.reconstructorSQLAlchemy的回滚关联其他模型数据库基本操作将数据添
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