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How does a public key verify a signature?

... 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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How to send password securely over HTTP?

...alid complaint, since you can get them for $30 these days. Is your data really not worth 30 bucks to protect? – caf Oct 18 '09 at 2:08 3 ...
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Git “error: The branch 'x' is not fully merged”

...rence. For example, if you have two branches, A and B, a usual way to list all commits on only one side of them is with --left-right, like the example above in the description of that option. It however shows the commits that were cherry-picked from the other branch (for example, "3rd on b" may be c...
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Select first row in each GROUP BY group?

... On Oracle 9.2+ (not 8i+ as originally stated), SQL Server 2005+, PostgreSQL 8.4+, DB2, Firebird 3.0+, Teradata, Sybase, Vertica: WITH summary AS ( SELECT p.id, p.customer, p.total, ROW_NUMBER() OVER(PARTITION BY p.cus...
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How to upload files to server using JSP/Servlet?

...ation/x-www-form-urlencoded. The request.getParameter() and consorts would all return null when using multipart form data. This is where the well known Apache Commons FileUpload came into the picture. Don't manually parse it! You can in theory parse the request body yourself based on ServletReques...
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Check if event exists on element [duplicate]

...econd argument feed 'events' and that will return an object populated with all the events such as 'click'. You can loop through that object and see what the event handler does. share | improve this ...
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Go to back directory browsing after opening file in vim

... Nice thing summarizing all the other correct answers, I wish more people do that. – LightMan Jul 19 '18 at 8:57 1 ...
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What are CN, OU, DC in an LDAP search?

...N = Common Name OU = Organizational Unit DC = Domain Component These are all parts of the X.500 Directory Specification, which defines nodes in a LDAP directory. You can also read up on LDAP data Interchange Format (LDIF), which is an alternate format. You read it from right to left, the right-m...
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JPA EntityManager: Why use persist() over merge()?

...ed (any changes you make will not be part of the transaction - unless you call merge again). You can through use returned instance (managed one). Maybe a code example will help. MyEntity e = new MyEntity(); // scenario 1 // tran starts em.persist(e); e.setSomeField(someValue); // tran ends, an...
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Why wasn't PyPy included in standard Python?

...e JIT compilation and lower memory footprint greatly improve the speeds of all Python code? 6 Answers ...