Java DESede 加密,OpenSSL 等效
我在 Java 中使用 DESede 加密,并且想在 C++ 中使用 OpenSSL 的 API 进行相同的加密。
Java 代码:
String secretKey = "abcdefghijklmnopqrstuvwx";
byte[] bytes = secretKey.getBytes("UTF-8");
SecretKey key = new SecretKeySpec(bytes, "DESede");
Cipher ecipher = Cipher.getInstance("DESede");
ecipher.init(Cipher.ENCRYPT_MODE, key);
String input = "holahola1";
byte[] utf8 = input.getBytes("UTF8");
byte[] enc = ecipher.doFinal(utf8); // Encrypt
输出:[94, -45, 64, -105, 99, -55, 99, -42, 95, 122, 72, 117, -119, 95, -43, 40]
C++ 代码:
unsigned char intext[256], outtext[256];
memset(intext, 0, sizeof(intext));
memset(outtext, 0, sizeof(outtext));
char *output = (char *)outtext;
DES_key_schedule keyschedc1;
DES_key_schedule keyschedc2;
DES_key_schedule keyschedc3;
DES_cblock keyc1;
DES_cblock keyc2;
DES_cblock keyc3;
DES_string_to_key("abcdefgh", &keyc1);
DES_string_to_key("ijklmnop", &keyc2);
DES_string_to_key("qrstuvwx", &keyc3);
DES_set_key((DES_cblock *)keyc1, &keyschedc1);
DES_set_key((DES_cblock *)keyc2, &keyschedc2);
DES_set_key((DES_cblock *)keyc3, &keyschedc3);
strcpy((char *)intext, "holahola1");
for (int i=0; i<16; i += 8)
{
DES_ecb3_encrypt((DES_cblock *)(intext + i),
(DES_cblock *)(outtext + i),
&keyschedc1, &keyschedc2,
&keyschedc3,DES_ENCRYPT);
}
输出:[ 30 55 9 -58 -18 -65 -66 123 -32 72 30 110 120 69 101 -81]
怎么了?有人可以帮助我吗?谢谢!。
I'm using DESede encryptation in Java and I want to make the same encryptation using the OpenSSL's API in C++.
Java code:
String secretKey = "abcdefghijklmnopqrstuvwx";
byte[] bytes = secretKey.getBytes("UTF-8");
SecretKey key = new SecretKeySpec(bytes, "DESede");
Cipher ecipher = Cipher.getInstance("DESede");
ecipher.init(Cipher.ENCRYPT_MODE, key);
String input = "holahola1";
byte[] utf8 = input.getBytes("UTF8");
byte[] enc = ecipher.doFinal(utf8); // Encrypt
output: [94, -45, 64, -105, 99, -55, 99, -42, 95, 122, 72, 117, -119, 95, -43, 40]
C++ code:
unsigned char intext[256], outtext[256];
memset(intext, 0, sizeof(intext));
memset(outtext, 0, sizeof(outtext));
char *output = (char *)outtext;
DES_key_schedule keyschedc1;
DES_key_schedule keyschedc2;
DES_key_schedule keyschedc3;
DES_cblock keyc1;
DES_cblock keyc2;
DES_cblock keyc3;
DES_string_to_key("abcdefgh", &keyc1);
DES_string_to_key("ijklmnop", &keyc2);
DES_string_to_key("qrstuvwx", &keyc3);
DES_set_key((DES_cblock *)keyc1, &keyschedc1);
DES_set_key((DES_cblock *)keyc2, &keyschedc2);
DES_set_key((DES_cblock *)keyc3, &keyschedc3);
strcpy((char *)intext, "holahola1");
for (int i=0; i<16; i += 8)
{
DES_ecb3_encrypt((DES_cblock *)(intext + i),
(DES_cblock *)(outtext + i),
&keyschedc1, &keyschedc2,
&keyschedc3,DES_ENCRYPT);
}
output: [30 55 9 -58 -18 -65 -66 123 -32 72 30 110 120 69 101 -81]
What's wrong? Can someone help me? Thanks!.
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我得到了它。 Java DESede 加密,使用具有 ecb 模式的三重 DES,并使用 PKCS#5 填充。因此,我使用 PKCS#5 填充文本,它解决了所有问题。
C++ 代码示例:
I got it. Java DESede encryption, uses a triple DES with ecb mode, and uses a PKCS#5 padding. So, I fill my text, using PKCS#5, and it solve all.
Example C++ code:
尝试使用 DES_ecb3_encrypt 代替,因为您使用的是 3 个单独的密钥。
Try DES_ecb3_encrypt instead as you are using 3 separate keys.