整数代码和返回 [英] Integer to code and back
问题描述
我需要将整数转换为仅包含
大写字母和数字的唯一代码字符串。
我还需要能够将其转换回再次整数。
例如:
10 = DFG56JKG4 = 10
谷歌搜索没有帮助。
问候
2007年1月3日星期三19:05:14 +0100,Tom写道:
我需要将一个整数转换为一个唯一的代码字符串
大写字母和数字。
我还需要能够将它再次转换回整数。
示例:
10 = DFG56JKG4 = 10
如何实现这一目标?
谷歌搜索没有帮助。 />
问候
用于从整数映射到字符串的逻辑是什么?
-----开始PGP签名消息-----
哈希:SHA1
Dan M写道:
2007年1月3日星期三19:05:14 +0100,Tom写道:
> 10 = DFG56JKG4 = 10
我该如何做到这一点?
用于从整数映射到字符串的逻辑是什么?
我想汤姆完全不知道怎么做。
可行的可能性:
- - 哈希表。
- - 一个simetric加密功能。
- -
- - --------------------------------
Iv ?? n S ?? nchez Ortega - ivansanchez-algarroba-escomposlinux-punto-org-
http://acm.asoc.fi.upm.es/~mr/ ; http://acm.asoc.fi.upm.es/~ivan /
MSN:我_ ************************* @ hotmail.com
Jabber:iv ********* @ jabber.org; iv*********@kdetalk.net
- ----开始PGP签名-----
版本:GnuPG v1.4.6(GNU / Linux)
iD8DBQFFnAFRR56dWuhgxGgRAtXIAKCC1sid + P5QVExaUxpJF0 pGqpyhoACfYoA7 >
UhwYA0Cl03R6ZUwG + 8C1jMw =
= K7s3
----- END PGP SIGNATURE -----
>>
>用于从整数映射到字符串的逻辑是什么?
我想汤姆完全不知道如何做到这一点。
完全正确!
我有triede base64_decode / encode但它失败了,因为它使用了非
alphanumerics。
所以base32
可行的可能性:
- - 哈希表。
嗯不响铃,谷歌给了我大量的东西,而不是直接相关的b $ b。
你能给我一个伪代码的例子吗?
- - 一个simetric加密函数。
嗯,谷歌搜索时的结果相同。这个概念存在,但显然每个人都知道它很好,他们不解释它,但只是参考它:-D
请举个例子?
感谢您的回答!
Tom
I need to convert an integer to a unique code string consisting only of
capital letters and numbers.
I also need to be able to convert it back to an integer again.
Example:
10 =DFG56JKG4 =10
How do I accomplish that?
Googling has not helped.
Regards
On Wed, 03 Jan 2007 19:05:14 +0100, Tom wrote:
I need to convert an integer to a unique code string consisting only of
capital letters and numbers.
I also need to be able to convert it back to an integer again.
Example:
10 =DFG56JKG4 =10
How do I accomplish that?
Googling has not helped.
RegardsWhat is the logic used to map from integer to string?
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Hash: SHA1
Dan M wrote:
On Wed, 03 Jan 2007 19:05:14 +0100, Tom wrote:
>10 =DFG56JKG4 =10
How do I accomplish that?
What is the logic used to map from integer to string?I guess that Tom has absolutely no idea on how to do that.
Viable possibilities:
- - A hash table.
- - A simetric encryption function.
- --
- ----------------------------------
Iv??n S??nchez Ortega -ivansanchez-algarroba-escomposlinux-punto-org-
http://acm.asoc.fi.upm.es/~mr/ ; http://acm.asoc.fi.upm.es/~ivan/
MSN:i_*************************@hotmail.com
Jabber:iv*********@jabber.org ; iv*********@kdetalk.net
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)
iD8DBQFFnAFRR56dWuhgxGgRAtXIAKCC1sid+P5QVExaUxpJF0 pGqpyhoACfYoA7
UhwYA0Cl03R6ZUwG+8C1jMw=
=K7s3
-----END PGP SIGNATURE-----
>>>What is the logic used to map from integer to string?
I guess that Tom has absolutely no idea on how to do that.Exactly!
I have triede base64_decode / encode but it fails as it uses non
alphanumerics.
So does base32
Viable possibilities:
- - A hash table.Hmm doesn''t ring a bell, and google gives me oodles of stuff that is not
directly related.
Could you please provide me with an example in pseudo code or something?
- - A simetric encryption function.Well, same result when googling. The concept exists but apparently everybody
knows it so well they don''t explain it but just refer to it :-D
An example please?
Thanks for answering!
Tom
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