{"id":12829,"date":"2019-04-25T17:36:56","date_gmt":"2019-04-25T21:36:56","guid":{"rendered":"http:\/\/www.iri.com\/blog\/?p=12829"},"modified":"2025-02-11T14:10:56","modified_gmt":"2025-02-11T19:10:56","slug":"data-masking-in-fieldshield","status":"publish","type":"post","link":"https:\/\/www.iri.com\/blog\/data-protection\/data-masking-in-fieldshield\/","title":{"rendered":"Using Static Data Masking & Dynamic Data Unmasking"},"content":{"rendered":"

Usually\u00a0static data masking<\/a><\/span>\u00a0is performed on production data at rest so it is stored safely, or when replicated to non-production environments for testing or development purposes.\u00a0Dynamic data masking<\/a><\/span>\u00a0(DDM) is performed on data in production tables during queries, so that those not authorized to see original column values will see redacted views of the values in their application instead.<\/span><\/p>\n

It\u2019s well known that\u00a0IRI FieldShield<\/a><\/span>\u00a0is a\u00a0static data masking\u00a0product. But it can also be used to mask and unmask data in databases and flat files in a more\u00a0dynamic way. We have seen use cases requiring either,\u00a0or both<\/a><\/span>, when the data at risk are at rest (static) or in motion (dynamic) and need to be protected.<\/p>\n

DDM via \u2018redaction in flight\u2019 is available from IRI through: API-callable masking libraries you can make on an authenticated, custom basis from C, C++, Java or .NET applications (see SDK here<\/a>); SQL (procedure) calls; and soon, a special JDBC driver managed via proxy server. This article addresses the first method for dynamic un<\/em>masking in conjunction with static data masking.\u00a0<\/span><\/p>\n

To demonstrate both static and dynamic data masking, we used\u00a0IRI Workbench<\/a><\/span>, the free graphical front-end for FieldShield and other IRI software,\u00a0built on Eclipse\u2122. In data security, compliance, and test data scenarios, Workbench users connect to their sources, perform discovery and classification, and then build and run static data masking functions.<\/span><\/p>\n

\"\"<\/a><\/p>\n

More specifically, they define their\u00a0data classes<\/a><\/span>\u00a0and search criteria, then apply\u00a0consistent\u00a0masking rules<\/a><\/span>\u00a0to protect it. This helps them govern their data better, and preserve the referential integrity of their sources. And it helps them conform with data privacy laws and business needs.<\/span><\/p>\n

Workbench also supports re-ID risk scoring, database subsetting, test data generation and population, and many other data management\u00a0capabilities<\/a><\/span>\u00a0enabled in the\u00a0IRI Voracity<\/a><\/span>\u00a0platform, which includes FieldShield.<\/p>\n

Being in Eclipse also means Workbench supports Java application development, and thus your programs that can dynamically mask or unmask data using library functions compatible with the static functions. Again, the API is documented\u00a0in the\u00a0FieldShield SDK<\/a><\/span>.<\/span><\/p>\n

This article provides a quick example of using FieldShield in Workbench for static data masking of a database table, and then unmasking that data dynamically in a Java program. Everything is configured in IRI Workbench.<\/span><\/p>\n

Setting Up<\/span><\/strong><\/em><\/p>\n

First, we built and populated a sample table in MySQL using the\u00a0SQL scrapbook<\/a><\/span>\u00a0of the Data Tools Platform (DTP) plug-in. We defined columns for: username, email, time, and comments:<\/span><\/p>\n

\"\"<\/a><\/p>\n

Static Data Masking<\/span><\/strong><\/em><\/p>\n

We used the \u2018New Data Masking Job \u2026\u2019 wizard from the top toolbar menu in Workbench to quickly acquire that table and its metadata, and build a job to statically mask the email column using one of the AES 256 encryption functions in FieldShield, enc_aes256. In the FieldShield script that the wizard created, we can see the function to be applied to the column once, and then on new rows in the table when the same job is\u00a0triggered\u00a0or\u00a0scheduled<\/a><\/span>\u00a0to run again.<\/span><\/p>\n

\"\"<\/a><\/p>\n

Once run, the table in the MySQL database will have the email column encrypted.<\/p>\n

\"\"<\/a><\/p>\n

Dynamic Data (Un) Masking<\/span><\/strong><\/em><\/p>\n

To demonstrate dynamic data unmasking, or decryption in this case, we called the corresponding decryption function, dec_aes256, in the FieldShield API library for Java:<\/span><\/p>\n

\"\"<\/a><\/p>\n

Similar calls are possible from .NET languages. This basic app shows how to connect to the MySQL table, validate the user, and display both the statically encrypted ciphertext value from the table, and the dynamically decrypted original plaintext email value in the console:<\/p>\n

\"\"<\/a><\/p>\n

Of course, you also could have performed the decryption back in Workbench in static fashion with a similar, standalone FieldShield task like this:<\/p>\n

\"\"<\/a><\/p>\n

The script above decrypts the ciphertext email values back to their original plaintext in each row of the database. The output can be the source table itself (to restore it), other targets (say, for testing), or both.<\/span>1<\/sup><\/a><\/span> Multiple tasks scripts addressing the masking or unmasking of multiple tables can be created automatically via FieldShield wizards in Workbench (and preserve referential integrity) with or without defined data classes<\/a>.<\/span><\/p>\n

In this case, you can check that the values have been decrypted to their original form by connecting to your MySQL database and selecting the fields that you want to see, or by simply displaying the table in Workbench. The decrypted view is the original table:<\/span><\/p>\n

\"\"<\/a><\/p>\n

The bottom line is that you can mask and unmask data statically or dynamically using IRI FieldShield. Use standalone mode for static data masking, and API mode for dynamic data masking. The masking functions are compatible, and every solution is enabled in the same pane of glass.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Usually\u00a0static data masking\u00a0is performed on production data at rest so it is stored safely, or when replicated to non-production environments for testing or development purposes.\u00a0Dynamic data masking\u00a0(DDM) is performed on data in production tables during queries, so that those not authorized to see original column values will see redacted views of the values in their<\/p>\n

Read More<\/a><\/div>\n","protected":false},"author":119,"featured_media":12841,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[8,91,29,3],"tags":[10,14,99,651,203,9,520,850,652,88],"class_list":["post-12829","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-data-protection","category-iri-workbench","category-test-data","category-vldb-operations","tag-data-encryption","tag-data-masking","tag-decryption","tag-dynamic-data-masking","tag-encryption","tag-fieldshield","tag-iri-fieldshield","tag-iri-workbench","tag-static-data-masking","tag-test-data-2"],"acf":[],"yoast_head":"\nUsing Static Data Masking & Dynamic Data Unmasking - IRI<\/title>\n<meta name=\"description\" content=\"Learn how to mask PII data in production with static data masking, and how those authorized can unmask that data dynamically from a program.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.iri.com\/blog\/data-protection\/data-masking-in-fieldshield\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Using Static Data Masking & Dynamic Data Unmasking\" \/>\n<meta property=\"og:description\" content=\"Learn how to mask PII data in production with static data masking, and how those authorized can unmask that data dynamically from a program.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.iri.com\/blog\/data-protection\/data-masking-in-fieldshield\/\" \/>\n<meta property=\"og:site_name\" content=\"IRI\" \/>\n<meta property=\"article:published_time\" content=\"2019-04-25T21:36:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-02-11T19:10:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.iri.com\/blog\/wp-content\/uploads\/2019\/04\/fieldshield-gui.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1446\" \/>\n\t<meta property=\"og:image:height\" content=\"963\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Devon Kozenieski\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Devon Kozenieski\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.iri.com\/blog\/data-protection\/data-masking-in-fieldshield\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.iri.com\/blog\/data-protection\/data-masking-in-fieldshield\/\"},\"author\":{\"name\":\"Devon Kozenieski\",\"@id\":\"https:\/\/www.iri.com\/blog\/#\/schema\/person\/de972c035aaeecfc40a3ae2ea5ff7ba1\"},\"headline\":\"Using Static Data Masking & Dynamic Data Unmasking\",\"datePublished\":\"2019-04-25T21:36:56+00:00\",\"dateModified\":\"2025-02-11T19:10:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.iri.com\/blog\/data-protection\/data-masking-in-fieldshield\/\"},\"wordCount\":807,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.iri.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.iri.com\/blog\/data-protection\/data-masking-in-fieldshield\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.iri.com\/blog\/wp-content\/uploads\/2019\/04\/fieldshield-gui.png\",\"keywords\":[\"data encryption\",\"data masking\",\"decryption\",\"dynamic data masking\",\"encryption\",\"FieldShield\",\"IRI FieldShield\",\"IRI Workbench\",\"static data masking\",\"test data\"],\"articleSection\":[\"Data Masking\/Protection\",\"IRI Workbench\",\"Test Data\",\"VLDB\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.iri.com\/blog\/data-protection\/data-masking-in-fieldshield\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.iri.com\/blog\/data-protection\/data-masking-in-fieldshield\/\",\"url\":\"https:\/\/www.iri.com\/blog\/data-protection\/data-masking-in-fieldshield\/\",\"name\":\"Using Static Data Masking & Dynamic Data Unmasking - 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