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gnu.crypto.hash.package.html Maven / Gradle / Ivy

Provides a basic API for using message digest algorithms.


Package overview

Message digests, or one-way hash functions, generate fixed-sized
signatures from variable-sized texts, in such a way that it is
computationally infeasible to determine the source text from the
signature or to find a different text that hashes to the same
signature.

The following diagram shows the important classes participating in this
package:



Here is a simple example of how to use the SHA-1 hash.

IMessageDigest md = HashFactory.getInstance("SHA-1");
md.update(input, 0, input.length);
byte[] digest = md.digest();