Java Blog für Programmierer

Snippet: List all MessageDigest provider

24.08.2012 · Christian Ullenboom

Pattern digestPattern = Pattern.compile( "^(Alg\\.Alias\\.)?MessageDigest\\.(?(\\w|-)+)" );
for ( Provider p : Security.getProviders() ) {
  for ( Object o : Collections.list( p.keys() ) ) {
    for ( Matcher m = digestPattern.matcher( o.toString() ); m.find(); )
      System.out.println( m.group("alg") );
  }
}

The result is:

SHA-1 SHA MD5 SHA-384 SHA-512 SHA1 SHA MD5 SHA-256 MD2

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Kategorien: Insel, Snippet