On March 29th, 2024, a backdoor was discovered in xz-utils, a suite of software that gives developers lossless compression. This package is commonly used for compressing release tarballs, software packages, kernel images, and initramfs images. It is very widely distributed, statistically your average Linux or macOS system will have it installed for
wangchauyan
/ xz-backdoor.md
Created
April 1, 2024 02:27
— forked from thesamesam/xz-backdoor.md
xz-utils backdoor situation
wangchauyan
/ NSData+AES.h
Created
January 6, 2017 09:33
— forked from matsuda/NSData+AES.h
Objective-C code for encrypt and decrypt by AES-128 encryption.
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| /** | |
| http://mythosil.hatenablog.com/entry/20111017/1318873155 | |
| http://blog.dealforest.net/2012/03/ios-android-per-aes-crypt-connection/ | |
| */ | |
| @interface NSData (AES) | |
| - (NSData *)AES128EncryptedDataWithKey:(NSString *)key; | |
| - (NSData *)AES128DecryptedDataWithKey:(NSString *)key; | |
| - (NSData *)AES128EncryptedDataWithKey:(NSString *)key iv:(NSString *)iv; |
wangchauyan
/ diff.mdown
Created
November 11, 2016 00:55
— forked from ndarville/diff.mdown
Paul Heckel's Diff Algorithm
The diff output is more specific:
[I]f a whole block of text is moved, then all of it, rather than just the beginning and end, is detected as changed.
>The algorithm described here avoids these difficulties. It detects differences that correspond very closely to our intuitive notion of difference.