github.com/bingoohuang/gg@v0.0.0-20240325092523-45da7dee9335/pkg/cry/example_test.go (about)

     1  package cry_test
     2  
     3  import (
     4  	"fmt"
     5  	"log"
     6  
     7  	"github.com/bingoohuang/gg/pkg/cry"
     8  )
     9  
    10  func ExampleNewAESOpt() {
    11  	// sample plain text
    12  	sampleText := "Halo this is encrypted text!!!"
    13  
    14  	// it's random string must be hexa  a-f & 0-9
    15  	const key = "fa89277fb1e1c344709190deeac4465c2b28396423c8534a90c86322d0ec9dcf"
    16  	// define AES option
    17  	aesOpt, err := cry.NewAESOpt(key)
    18  	if err != nil {
    19  		log.Println("ERR", err)
    20  		return
    21  	}
    22  
    23  	// Encrypt text using AES algorithm
    24  	cipherText, err := aesOpt.Encrypt([]byte(sampleText))
    25  	if err != nil {
    26  		log.Println("ERR", err)
    27  		return
    28  	}
    29  	// 每次加密结果不一样（因为加入了随机的nonce)
    30  	// fmt.Println("Encrypted data", string(cipherText))
    31  	// Encrypted data 28509ae15364b3994846eeb4079122825285ac7863f94fab43aacb43b5a81e2f93c58743c5d089ae4fefe468b1e240ac88cb50e9316a2f618d55
    32  	// Encrypted data b91a0019778033730704da5881a39c955f58c878f6a7938da107a2cbb9d752100af56024463d901c75b1ea6cb63089bf88e8b758b9786de9150e
    33  
    34  	// Decrypt text using AES algorithm
    35  	plainText, err := aesOpt.Decrypt([]byte(cipherText))
    36  	if err != nil {
    37  		log.Println("ERR", err)
    38  		return
    39  	}
    40  	fmt.Println("Decrypted data", string(plainText))
    41  
    42  	// Output:
    43  	// Decrypted data Halo this is encrypted text!!!
    44  }
    45  
    46  func ExampleNewDESOpt() {
    47  	// sample plain text
    48  	sampleText := "Halo this is encrypted text!!!"
    49  	// it's character 24 bit
    50  	const key = "123456781234567812345678"
    51  	// define DES option
    52  	desOpt, err := cry.NewDESOpt(key)
    53  	if err != nil {
    54  		log.Println("ERR", err)
    55  		return
    56  	}
    57  
    58  	// Encrypt text using DES algorithm
    59  	cipherText, err := desOpt.Encrypt([]byte(sampleText))
    60  	if err != nil {
    61  		log.Println("ERR", err)
    62  		return
    63  	}
    64  	// fmt.Println("Encrypted data:", cipherText)
    65  	// 每次都得到一样的数据
    66  	// Encrypted data: k1Uoi4OsCMBSCeVxdBmwfVuO2PxndJZSfCsXIULB7F0=
    67  
    68  	// Decrypt text using DES algorithm
    69  	plainText, err := desOpt.Decrypt([]byte(cipherText))
    70  	if err != nil {
    71  		log.Println("ERR", err)
    72  		return
    73  	}
    74  	fmt.Println("Decrypted data:", plainText)
    75  	// Output:
    76  	// Decrypted data: Halo this is encrypted text!!!
    77  }
    78  
    79  func ExampleNewRC4Opt() {
    80  	// sample plain text
    81  	sampleText := "Halo this is encrypted text!!!"
    82  	// it's character 24 bit
    83  	const key = "123456781234567812345678"
    84  	// define RC4 option
    85  	rc4Opt, err := cry.NewRC4Opt(key)
    86  	if err != nil {
    87  		log.Println("ERR", err)
    88  		return
    89  	}
    90  
    91  	// Encrypt text using RC4 algorithm
    92  	cipherText, err := rc4Opt.Encrypt([]byte(sampleText))
    93  	if err != nil {
    94  		log.Println("ERR", err)
    95  		return
    96  	}
    97  	// fmt.Println("Encrypted data:", cipherText)
    98  	// 每次都得到一样的数据
    99  	// Encrypted data: f39255bb29c5b6ce831363bc865866c600e7ed3dac0c5dc13c63a196788c
   100  
   101  	// Decrypt text using RC4 algorithm
   102  	plainText, err := rc4Opt.Decrypt([]byte(cipherText))
   103  	if err != nil {
   104  		log.Println("ERR", err)
   105  		return
   106  	}
   107  	fmt.Println("Decrypted data:", plainText)
   108  	// Output:
   109  	// Decrypted data: Halo this is encrypted text!!!
   110  }