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Base64 加密算法(Author 蒋柏良 Jerry Jiang)
Base64 加密算法(Author 蒋柏良 Jerry Jiang)-*
* DESCRIPTION
* Base64 processes input in 24bit chunks by converting each chunk into 4
* bytes of output. It does so by splitting input into four 6bit groups and
* using these as indexes in the following substitution table-
* const char base64_map[] =
* "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
* "abcdefghijklmnopqrstuvwxyz"
* "0123456789+/"
* If an input is not a multiple of 3 bytes, it s padded with zeros. In
* this case the output bytes that consist entirely of the pad data are
* replaced with = .
*
* Example
* An input of 0x00 0x45 0xF2 is equivalent to 00000000 01000101 11110010
* bit sequence, which s then split into 000000 000100 010111 110010
* and these are substituted to produce the following base64 encoding
* A E X y
*
* RETURN VALUE
* b64_length() should return output length for the input of len bytes.
* b64_encode() should encode len bytes from src int
- 2022-07-18 16:55:26下载
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pgpencrypt.rar
pgpencrypt.rar
- 2023-06-18 19:35:04下载
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一些加密算法的介绍,可对文件或字符串加密
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- 2022-04-22 08:56:17下载
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线性移位寄存器是流密码的重要组成部分,该程序就是实现该方法。...
线性移位寄存器是流密码的重要组成部分,该程序就是实现该方法。- The linearity shift register is the stream cipher important
constituent, this procedure realizes this method.
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DCPcrypt Cryptographic Component Library
DCPcrypt Cryptographic Component Library
- 2022-08-03 06:46:51下载
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ProGuard5.2.1含源代码,完全可编译执行
Proguard是强大的Java字节码混淆器,含有源代码,可以根据自己需求修改编译。满足自身需求。
也可以作为爱好者自学的好材料。
- 2022-01-26 03:52:01下载
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最好的CRC程序.rar 最好的CRC程序.rar
最好的CRC程序.rar 最好的CRC程序.rar-CRC
- 2023-04-25 17:25:03下载
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这是一个在vc环境下编译通过的MD5算法。包含算法源代码和测试主程序。...
这是一个在vc环境下编译通过的MD5算法。包含算法源代码和测试主程序。-This is an environment in vc compiled by the MD5 algorithm. Includes algorithm source code and testing main program.
- 2022-03-15 03:52:46下载
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这个是数据加密标准的VC算法
这个是数据加密标准的VC算法-This is a standard data encrypt algorithm of VC
- 2022-03-13 08:51:08下载
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代码做了什么?有时我们可能希望隐藏我们的文件内容从其他…
What Does the code DO? Sometimes we may desire to hide our file contents from others.One of the possible way is encrypting these files.Here a simple encryption technique is used(In VB - The same technique can be implemented in "c" also.) Program flow Explained * Open the File to be encrypted for Binary Access Read(Say Source File) * Open a temparory file where encrypted data is stored for Binary Access Write(Say Destination File) * Loop through the Source File Byte by Byte * For each byte read from the file, Complement the data. (Using Not operator (in C we have to use "~" operator) * Write Complemented Data to Destination File * Delete the Source File * Rename Destination file as Source File(Now Encryption is over) -What Does the code DO? Sometimes we may desire to hide our file contents from others.One of the possible way is encrypting these files.Here a simple encryption technique is used (In VB- The same technique can be implemented in
- 2023-06-18 10:00:03下载
- 积分:1