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Spark Decrypt files

This is a project to encrypt and decrypt files in spark with AES/GCM or AES/CBC only use java and spark dependencies.

Environment

Prepare

  • Files need to be decrypted. Put these files into a folder. These files should be encrypted either by AES-GCM or AES-CBC use a secret key.

  • Build

    mvn clean package

    You will get ./target/sparkcryptofiles-1.0-SNAPSHOT-jar-with-dependencies.jar

Encrypt Files

Generate secret key:

$SPARK_HOME/bin/spark-submit \
  --master local[2] \
  --class sparkCryptoFiles.GenerateKey \
  ./target/sparkcryptofiles-1.0-SNAPSHOT-jar-with-dependencies.jar

The output is:

Successfully generate key:
LDlxjm0y3HdGFniIGviJnMJbmFI+lt3dfIVyPJm1YSY=

Encrypt

$SPARK_HOME/bin/spark-submit \
  --master local[2] \
  --class sparkCryptoFiles.SparkEncryptFiles \
  ./target/sparkcryptofiles-1.0-SNAPSHOT-jar-with-dependencies.jar \
  ./src/main/scala/com/piaolaidelangman/originData/ \
  /tmp/AESCBC \
  AESCBC \
  LDlxjm0y3HdGFniIGviJnMJbmFI+lt3dfIVyPJm1YSY=

I use iris.csv and the output is:

/tmp/AESGCM/iris_2.csv AES-CBC encrypt successfully saved!
/tmp/AESGCM/iris_1.csv AES-CBC encrypt successfully saved!

Then I get the iris.csv(Encrypted) in folder /tmp/AESCSC.

Please modify the path in the command according to your needs.

Usage

  • inputPath: String. A folder contains encrypt files.
  • outputPath: String. The path where encrypted files to be saved.
  • encryptMethod: String. "AESCBC" or "AESGCM". A method used to decrypt files.
  • secret: String. "AESCBC" or "AESGCM" encrypt method needs this parameter.

Decrypt files

$SPARK_HOME/bin/spark-submit \
  --master local[2] \
  --class sparkCryptoFiles.SparkDecryptFiles \
  ./target/sparkcryptofiles-1.0-SNAPSHOT-jar-with-dependencies.jar \
  /tmp/AESCBC \
  AESCBC \
  LDlxjm0y3HdGFniIGviJnMJbmFI+lt3dfIVyPJm1YSY=

The output is:

+------------+-----------+------------+-----------+---------------+
|sepal length|sepal width|petal length|petal width|          class|
+------------+-----------+------------+-----------+---------------+
|         6.6|        3.0|         4.4|        1.4|Iris-versicolor|
|         6.8|        2.8|         4.8|        1.4|Iris-versicolor|
|         6.7|        3.0|         5.0|        1.7|Iris-versicolor|
|         6.0|        2.9|         4.5|        1.5|Iris-versicolor|
|         5.7|        2.6|         3.5|        1.0|Iris-versicolor|
|         5.5|        2.4|         3.8|        1.1|Iris-versicolor|
|         5.5|        2.4|         3.7|        1.0|Iris-versicolor|
|         5.8|        2.7|         3.9|        1.2|Iris-versicolor|
|         6.0|        2.7|         5.1|        1.6|Iris-versicolor|
|         5.4|        3.0|         4.5|        1.5|Iris-versicolor|
|         6.0|        3.4|         4.5|        1.6|Iris-versicolor|
|         6.7|        3.1|         4.7|        1.5|Iris-versicolor|
|         6.3|        2.3|         4.4|        1.3|Iris-versicolor|
|         5.6|        3.0|         4.1|        1.3|Iris-versicolor|
|         5.5|        2.5|         4.0|        1.3|Iris-versicolor|
|         5.5|        2.6|         4.4|        1.2|Iris-versicolor|
|         6.1|        3.0|         4.6|        1.4|Iris-versicolor|
|         5.8|        2.6|         4.0|        1.2|Iris-versicolor|
|         5.0|        2.3|         3.3|        1.0|Iris-versicolor|
|         5.6|        2.7|         4.2|        1.3|Iris-versicolor|
+------------+-----------+------------+-----------+---------------+
only showing top 20 rows

Please modify the path in the command according to your needs.

Usage

  • inputPath: String. A folder contains encrypt files.
  • decryptMethod: String. "AESCBC" or "AESGCM". A method used to decrypt files according your encrypt method.
  • secret: String. "AESCBC" or "AESGCM" decrypt method needs this parameter.

There are more decrypt files demo in src/main/scala/com/piaolaidelangman/sparkDecryptFiles/. For example, encrypt some column from encrypted tables with different columns then save to files.