des

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Getting "Bad Data" exception on DES decrypt in .NET

In C#.NET, I want to decrypt some data that has been encrypted by DES algorithm before, and just have a key but no IV![详细]

2023-04-12 13:59 分类：问答
How can I implement CBC-MAC with DES?

I should implement a MAC-CBC generation method in C# with some information about the cryptography algorithm. Here\'s what I have:[详细]

2023-04-09 22:08 分类：问答
Suspend "Weak encryption keys" warning from libgcrypt->libgpg-error

I\'m using weak keys while doing cryptography with libgcrypt and I\'m getting proper warnings about it from libgpg-error as \"Weak encryption keys\" to stderr. Problem is that I\'m reading std:err int[详细]

2023-04-06 00:45 分类：问答
JAVA DES/CBC/PKCS5Padding how encryption translated into iPhone?

source: public static String encrypt(String src, String key) { try { Cipher cipher = Cipher.getInstance(\"DES/CBC/PKCS5Padding\");[详细]

2023-04-05 08:07 分类：问答
C: DES Encryption problem

I was looking for examples how to encode stuff in C using DES cypher and openssl headers and I found this one: http://www.codealias.info/technotes/des_encryption_using_openssl_a_simple_example[详细]

2023-03-28 18:48 分类：问答
DES encryption in PHP

I am coding a Drupal payment method module and within this I need to generate a hash to send to a bank. Bank asks me to code certain strings into the DES/ECB hash. They also provide test environment a[详细]

2023-03-28 12:44 分类：问答
Encrypt an Integer Value with DES

I want to encrypt an integer with DES, the resultant cipher text should also be an integer. Decryption function should follow this notion as well.[详细]

2023-03-26 09:39 分类：问答
ISO 9797 padding method 2 and MAC generation in java

I\'m hoping that some of you may be able to help me on this issue. I\'ve used the SmartCardShell program to run a javascript code that extracts the data off a British e-Passport.[详细]

2023-03-26 03:24 分类：问答
Bit manipulation of chars in Java or C?

I am a student trying to implement the DES algorithm. I have a choice of 2 languages: C & Java. I did understand the algorithm, but am stuck at the very beginning as to manipulation of the key.[详细]

2023-03-25 23:45 分类：问答
Decryption bug using des ede, javax.crypto.badpaddingexception

I\'ve been stuck on a bug in my code, it will not let me decrypt properly! I am only passing eight bytes of data to dataBytes and I am passing[详细]

2023-03-23 12:55 分类：问答