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Java 256-bit AES Password-Based Encryption
...ing on the computing resources available.
The key size can be reduced to 128 bits, which is still considered "strong" encryption, but it doesn't give much of a safety margin if attacks are discovered that weaken AES.
Used with a proper block-chaining mode, the same derived key can be used to encr...
Multiple glibc libraries on a single host
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edited May 29 '12 at 0:35
answered May 12 '09 at 5:10
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Using git repository as a database backend
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answered Jun 12 '14 at 4:43
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JavaScript + Unicode regexes
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edited Jun 20 at 9:12
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answered Nov 11 '08 at 12:35
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What does multicore assembly language look like?
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edited May 23 '17 at 12:18
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answered Jun 13 '09 at 18:09
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Why does Java switch on contiguous ints appear to run faster with added cases?
...b9: mulsd xmm0,QWORD PTR [rip+0xffffffffffffff67] # 0x00000000024f0128
;*dmul
; - javaapplication4.Test1::multiplyByPowerOfTen@70 (line 68)
; {sec...
What optimizations can GHC be expected to perform reliably?
...3
wired-in package base mapped to base-4.5.1.0-6e4c9bdc36eeb9121f27ccbbcb62e3f3
wired-in package rts mapped to builtin_rts
wired-in package template-haskell mapped to template-haskell-2.7.0.0-2bd128e15c2d50997ec26a1eaf8b23bf
wired-in package dph-seq not found.
wired-in package dph-par not found.
Hsc...
Python base64 data decode
...56\x0cC\x96\x87\xbf\x00\x00\x00\x00C\x96\x87\xd1\x00\x00\x00\x00C\x96\x87\xe3\x00\x00\x00\x00C\x96\x87\xf5\x00\x00\x00\x00C\x9cY}\x00\x00\x00\x00C\x9cY\x90\x00\x00\x00\x00C\x9cY\xa4\x00\x00\x00\x00C\x9cY\xb7\x00\x00\x00\x00C\x9cY\xcbC\x1f\xbd\xa3C\x9cY\xdeCCz{C\x9cY\xf1CD\x02\xa7C\x9cZ\x05C+\x9d\x97...
Programmer Puzzle: Encoding a chess board state throughout a game
...and king). Each piece can be White or Black so a square may contain one of 12 possible pieces or it may be empty so there are 13 possibilities. 13 can be stored in 4 bits (0-15) So the simplest solution is to store 4 bits for each square times 64 squares or 256 bits of information.
The advantage of...
LINGO使用指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...正态分布。
11．@psn(x)
标准正态分布的累积分布函数。
12．@ptd(n,x)
自由度为n的t分布的累积分布函数。
13．@qrand(seed)
产生服从(0,1)区间的拟随机数。@qrand只允许在模型的数据部分使用，它将用拟随机数填满集属性。通常，声...