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Moderne licensed

Find predictable cryptographic salts

Recipe IDorg.openrewrite.java.security.search.FindPredictableSalt
Artifactorg.openrewrite.recipe:rewrite-java-security

Finds PBEParameterSpec and PBEKeySpec constructed with hardcoded or too-short salt byte arrays. A predictable salt undermines the purpose of salting, making rainbow table and precomputation attacks feasible; a salt shorter than 16 bytes is below the minimum strength recommended by NIST SP 800-132. Salts should be generated randomly using SecureRandom and at least 16 bytes long.

Single recipeRSPEC-S2053CWE-760Proprietary

Usage

This recipe has no required configuration options. You’ll need the Moderne CLI configured before running the command below.

mod run . --recipe org.openrewrite.java.security.search.FindPredictableSalt

If the recipe isn’t available locally, install it with:

mod config recipes jar install org.openrewrite.recipe:rewrite-java-security:3.36.0

Data tables

Structured output this recipe can produce.

  • Source files that had resultsSource files that were modified by the recipe run.org.openrewrite.table.SourcesFileResults
  • Source files that had search resultsSearch results that were found during the recipe run.org.openrewrite.table.SearchResults
  • Source files that errored on a recipeThe details of all errors produced by a recipe run.org.openrewrite.table.SourcesFileErrors
  • Recipe performanceStatistics used in analyzing the performance of recipes.org.openrewrite.table.RecipeRunStats