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How to convert UTF-8 byte[] to string?
...ts b4b5dfe475e58b67
public static class Ext {
public static string ToHexString(this byte[] hex)
{
if (hex == null) return null;
if (hex.Length == 0) return string.Empty;
var s = new StringBuilder();
foreach (byte b in hex) {
s.Append(b.ToString(...
Most lightweight way to create a random string and a random hexadecimal number
...
I got a faster one for the hex output. Using the same t1 and t2 as above:
>>> t1 = timeit.Timer("''.join(random.choice('0123456789abcdef') for n in xrange(30))", "import random")
>>> t2 = timeit.Timer("binascii.b2a_hex(os.urandom(15...
How to hash some string with sha256 in Java?
...a, and if you want to represent that in a string, you should use base64 or hex... don't try to use the String(byte[], String) constructor.
e.g.
MessageDigest digest = MessageDigest.getInstance("SHA-256");
byte[] hash = digest.digest(text.getBytes(StandardCharsets.UTF_8));
...
Restore the state of std::cout after manipulating it
...exactly what you need. :-)
Example based on your code snippet:
void printHex(std::ostream& x) {
boost::io::ios_flags_saver ifs(x);
x << std::hex << 123;
}
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Generate random string/characters in JavaScript
...two, for example, you'll see your number represented in binary. Similar to hex (base 16), base 36 uses letters to represent digits beyond 9. By converting a random number to base 36, you'll wind up with a bunch of seemingly random letters and numbers.
– Chris Baker
...
How to create a GUID/UUID in Python
....uuid4())
'f50ec0b7-f960-400d-91f0-c42a6d44e3d0'
>>> uuid.uuid4().hex
'9fe2c4e93f654fdbb24c02b15259716c'
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“历史遗留”漏洞：浅析新型SSL/TLS漏洞FREAK - 创意 - 清泛网 - 专注C/C++及内核技术
...on RSA-EXPORT Keys）。黑客或情报机构能借此强迫客户端使用低版本且包含漏洞的加密方式，包括美国的出口级密钥——512位的RSA密钥。
FREAK漏洞是由法国国家信息与自动化研究所(Inria)和微软的研究人员共同发现的。为此，他们曾...
程序崩溃时malloc/new可能导致死锁，程序卡死退不出 - C/C++ - 清泛网 - 专...
...C++崩溃时容易不彻底，导致卡住死锁，Server2008死锁概率低一些，死锁感觉是由于malloc不可重入导致的。操作系统底层API行为可能不一致，可能有办法指定 1、程序崩溃时malloc/new可能导致死锁，程序卡死退不出。Win、Linux下都会...
百度牵手安联高瓴涉足在线保险 又晚了还是刚刚好？ - 资讯 - 清泛网 - 专注...
...，我国保险业互联网销售渠道收入整体规模仍小，占比较低，仍有很大发展潜力。百度要从中分一杯羹，并不是没有可能。
搜索、地图根基，百度具备大数据基础
今年以来，百度CEO李彦宏多次公开表示将把重心放在O2O领域。...
租个工位办公 房企纷纷涉足“创客空间” - 资讯 - 清泛网 - 专注C/C++及内核技术
...大厦(63层)等的几个联合办公场所，租用一个办公位置最低只要支出8元/天。而创客空间与普通办公楼最大的不同在于，一个人就可以租赁一个“工位”进行办公，租期不定，最短的有一周起租，最长的也可以签到一年，甚者更长...