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How does a public key verify a signature?

...e on how public/private keys work. I understand that a sender may add a digital signature to a document using his/her private key to essentially obtain a hash of the document, but what I do not understand is how the public key can be used to verify that signature. ...
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Stack vs heap allocation of structs in Go, and how they relate to garbage collection

I'm new to Go and I'm experiencing a bit of congitive dissonance between C-style stack-based programming where automatic variables live on the stack and allocated memory lives on the heap and and Python-style stack-based-programming where the only thing that lives on the stack are references/pointer...
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Apache Spark: map vs mapPartitions?

What's the difference between an RDD's map and mapPartitions method? And does flatMap behave like map or like mapPartitions ? Thanks. ...
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What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?

...blem in Object-Relational mapping (ORM) discussions, and I understand that it has something to do with having to make a lot of database queries for something that seems simple in the object world. ...
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Servlet returns “HTTP Status 404 The requested resource (/servlet) is not available”

...lass servlet.java in my default package in src folder. In my web.xml it is mapped as /servlet . 12 Answers ...
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What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }

... It's usually to namespace (see later) and control the visibility of member functions and/or variables. Think of it like an object definition. The technical name for it is an Immediately Invoked Function Expression (IIFE). jQu...
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jquery variable syntax [duplicate]

... $self has little to do with $, which is an alias for jQuery in this case. Some people prefer to put a dollar sign together with the variable to make a distinction between regular vars and jQuery objects. example: var self = 'some stri...
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What is RSS and VSZ in Linux memory management

What are RSS and VSZ in Linux memory management? In a multithreaded environment how can both of these can be managed and tracked? ...
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What is the real overhead of try/catch in C#?

...ntrolling process flow, but where does this overhead come from and what is it's actual impact? 12 Answers ...
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Xcode 'Build and Archive' menu item disabled

...ing the new 'Build and Archive' feature of the latest Xcode 3.2.3. I like it. 10 Answers ...