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- Query data faster using sorted hash clusters
- When you have a large number of keys, you'll start to see performance problems because now you have many cluster blocks. One way to get around this is by providing a hash function to restrict the number of cluster blocks. When data is stored in a normal table,...
- Tags: Scott Stephens, Financial services, hash function, Oracle Tips Newsletter, Database, Credit Card, Oracle Application Server 10g, Table, Sales Channel, Storage, Databases, Sales, Hardware, Enterprise Software, Software, Data Management
- Technical articles 2005-07-27
Additional Resources
- ARC: A Synchronous Stream Cipher From Hash Functions
- In this paper, a simple and secure way to realize a synchronous stream cipher from iterated hash functions is considered. It is similar to the OFB mode where the underlying block cipher algorithm is replaced with the keyed hash function, adopting the secret suffix method. The paper analyzes the key,...
- Tags: Function, Engineering
- White papers 2005-12-22
- Create key-value data associations by understanding the benefits of Perl hashes
- Homemade hashWhat has experience taught you about using a hash? What is the best use for a hash that you have found?back in "high" school......i smoked a bunch of hash, and I am pretty sure thats the best i've ever used.
- Tags: Mark W. Kaelin, perl, application development, hash, melonfire, programming, benefit
- Discussion threads 2006-06-23
- Create key-value data associations by understanding the benefits of Perl hashes
- One of Perl's most interesting data structures is the hash, which makes it possible to create key-value associations between data fragments. This download tutorial shows you how to create Perl hashes, how to add and delete elements from that hash, how to build nested hashes, and how to process hashes...
- Tags: Perl, Benefit, Scripting Languages, Programming Languages, Development Tools, Software/Web Development, Web Development, Software Development
- Download resources 2006-06-23
- Perfect Spatial Hashing
- This paper explores using hashing to pack sparse data into a compact table while retaining efficient random access. The paper specifically designs a perfect multidimensional hash function - one that is precomputed on static data to have no hash collisions. Because the hash function makes a single reference to a...
- Tags: 3D, Graphics
- White papers 2006-04-25
- Advanced Hash Calculator (exe)
- Advanced File Calculator is a cryptographic data hash calculation software. Simply drag and drop files in this calculator and hash string for the files will be immediately displayed. Supported cryptographic hash calculation algorithms include CRC32, GOST hash, MD2, MD4, MD5, SHA-1, HA2 (256), SHA2 (384), SHA2 (512). You may copy...
- Tags: String, Filesland, Advanced File Calculator, Engineering
- Software downloads 2008-06-24
- How do I... Serialize a hash table in C# when the application requires it?
- The .NET Framework is unable to serialize any object that implements the IDictionary interface. This restriction includes, but is not limited to, hash tables. At some point in your application development career, you will be called upon to serialize hash tables. Zach Smith shows you his preferred method for converting...
- Tags: Microsoft .NET Framework, C#, Software Development, .Net, Professional Development, Programming Languages, Development Tools, Middleware, Software/Web Development, Career, Enterprise Software, Software
- Download resources 2007-10-01
- febooti fileTweak Hash & CRC (exe)
- febooti fileTweak Hash & CRC is a freeware hash / CRC calculator. Compute hash fingerprint / CRC checksum from any provided file. Supported hash / CRC formats: CRC32, MD2, MD4, MD5, SHA-1, SHA-224, SHA-256, SHA-384, SHA-512, RIPEMD-128, RIPEMD-160, RIPEMD-256, RIPEMD-320, WHIRLPOOL-1 and Tiger-192.
- Tags: Freeware, SHA-1
- Software downloads 2006-10-18
- DopeCode Hash (msi)
- DopeCode hash allows you to quickly and easily hash files in the system. Right click on a file and choose Hash and you will be presented with a dialog showing you the MD5 and SHA hashes of the file. Copy to the clipboard with one click, or save to a...
- Tags: File
- Software downloads 2007-07-31
- To Hash, or Not to Hash...: That Is NOT the Question - When Hashing Creates a False Sense of Security
- There has been extensive discussion and use precedent in the legal and security fields around hashing, its use and its value - real and perceived. Even though its robustness and usefulness are incontrovertible in the security world, hashing's perceived value in the legal field (for the purpose of establishing the...
- Tags: ProofSpace, Security
- White papers 2007-12-01
- Follow the rules to more effective C# programming
- For C# programmers, no single function generates more discussion and more confusion than GetHashCode. Hash-based containers use hash codes to optimize searches. In .NET, every object has a hash code that is established based on three specific rules. This chapter from Bill Wagner's Effective C#: 50 Specific Ways to Improve...
- Tags: Programming, Addison-Wesley, C#, .Net, Programming Languages, Software Development, Software/Web Development
- Book chapters 2005-04-29
- Code Keeper (zip)
- Code Keeper helps developers keep track of the registration codes that they put in their programs. In addition, it gives the developer two MD5 hashes and three SHA hashes that can be used inside their programs to represent the code. The first MD5 Hash is a direct MD5 Hash of...
- Tags: Developer, Registration, Hash, MD5 Hash
- Software downloads 2007-03-06
- Data Step Hash Objects as Programming Tools
- In SAS Version 9.1, the hash table - the very first object introduced via the Data Step Component Interface in Version 9.0 - has become robust and syntactically stable. The philosophy and application style of the hash objects differs quite radically from any other structure ever used in the Data...
- Tags: SAS Institute, Programming Tool, Tool, Object
- White papers 2006-02-28
- File Hasher (exe)
- A fast file hasher. Supports MD2, MD5, SHA-1, SHA-256, SHA-386, and SHA-512 hash algorithms. Features of File Hasher: Right click on file "Hash it!" option. Hash comparison available. Copy to clipboard button to view the details. Very fast hashing speed.This version is the first release on CNET Download.com.
- Tags: SHA-1, Mox Software, Engineering
- Software downloads 2008-05-22
- Exploiting MD5 collisions
- If you are not convinced that MD5 hash function is no longer adecuate for file verification, read this article: http://www.codeproject.com/useritems/HackingMd5.aspAlso on my blog I collected a lot of information about the hacking to MD5 functionhttp://www.darksideprogramming.org/archives/criptography/index.html
- Tags: Hacking, MD5
- Discussion threads 2005-09-15
- Iside (exe)
- Iside compares files and folders by computing their hash code (MD5,SHA1,...). Right click on a file, select Copy and by right clicking on another file you will discover if they are equal. Includes file comparison, hash displaying tool plus a complete folder comparison tool. The hash functions can determine if...
- Tags: Tool, Iside, Productivity
- Software downloads 2007-12-14
- Follow the rules to more effective C# programming
- For C# programmers, no single function generates more discussion and more confusion than GetHashCode. Hash-based containers use hash codes to optimize searches. In .NET, every object has a hash code that is established based on three specific rules. This chapter from Bill Wagner's Effective C#: 50 Specific Ways to Improve...
- Tags: .NET, Programming languages, C#, Addison-Wesley, programming, programmer, Microsoft .NET, Web site, Web
- Download resources 2005-04-29
- Better Hashing in SAS 9.2
- The DATA step hash object is one of the most versatile new features of Base SAS programming. Since its introduction in SAS 9, the paper has numerous accounts from users where the hash object has drastically reduced data processing time for complex data join operations. Based on feedback, the paper...
- Tags: SAS Institute
- White papers 2008-03-11
- Create key-value data associations by understanding the benefits of Perl hashes
- One of Perl's mostinteresting data structures is the hash, which makes it possible to create key-valueassociations between data fragments. These hashes, although far more versatilethan plain-vanilla numerically-indexed arrays, are often intimidating to thenovice user. And that's where this document comes in - it provides a crashcourse in creating Perlhashes, adding...
- Tags: apple, benefit, cat, Contributor Melonfire, hash, hashe, Perl
- Technical articles 2006-06-23
- Perl geekery: building hashes
- Say we're writing a program in Perl, and we need to pass a lot of data back and forth between subroutines. Using global variables is bad practice, and we often use the slightly-less-bad method of passing around a big hash variable. But it's a pain to always use the values...
- Tags: User Submission
- Blog posts 2007-06-21
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