Moderne licensed

Find predictable cryptographic salts

Recipe IDorg.openrewrite.java.security.search.FindPredictableSaltArtifactorg.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

Add to your build

Get a download tokenThis recipe is Moderne licensed, so the token must belong to a Moderne customer. It replaces YOUR_DOWNLOAD_TOKEN below.

~/.gradle/gradle.properties

codeGenomeUsername=you@example.com
codeGenomeToken=YOUR_DOWNLOAD_TOKEN

build.gradle.kts

plugins {
    id("org.openrewrite.rewrite") version("latest.release")
}

rewrite {
    activeRecipe("org.openrewrite.java.security.search.FindPredictableSalt")
}

repositories {
    mavenCentral()
    maven {
        url = uri("https://artifacts.codegenomeproject.org/maven")
        credentials {
            username = providers.gradleProperty("codeGenomeUsername").get()
            password = providers.gradleProperty("codeGenomeToken").get()
        }
    }
}

dependencies {
    rewrite("org.openrewrite.recipe:rewrite-java-security:3.41.0")
}

Then run

./gradlew rewriteRun

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:RELEASE

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