flow like the river

VISUALIZACION/node_modules/cipher-base/README.md

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+cipher-base
+===
+
+[![Build Status](https://travis-ci.org/crypto-browserify/cipher-base.svg)](https://travis-ci.org/crypto-browserify/cipher-base)
+
+Abstract base class to inherit from if you want to create streams implementing
+the same api as node crypto streams.
+
+Requires you to implement 2 methods `_final` and `_update`. `_update` takes a
+buffer and should return a buffer, `_final` takes no arguments and should return
+a buffer.
+
+
+The constructor takes one argument and that is a string which if present switches
+it into hash mode, i.e. the object you get from crypto.createHash or
+crypto.createSign, this switches the name of the final method to be the string
+you passed instead of `final` and returns `this` from update.