JWE Encryption between JAVA / NODE JS

Introduction

Example of encryption and decryption with key RSA between app's run on Java and Node JS.

Dependencies relevant used:

App	Dependency	Version
Java	nimbus-jose-jwt	8.5.1
NodeJs	jose	1.23.0

Use

Before execute put your files private and public key foder keys:

• private_key.der
• public_key.der

Running Java APP - Getting JWK

Generate JWK more information.

Unix

$ cd app-java
$ ./gradlew run

Windows

$ cd app-java
$ gradlew.bat run

1.2 Example response

...
2020-02-20T13:39:41,131 [ INFO] [           main] [o.e.App                                 ] [] JWK RSA: {"p":"7cfFEz_cdiYT7-V2qiuyZlR2yAaXeSzpLQAjRc41cITsxj5SsvsFVeaXfXi6easXjCbTgtgTvPIyiH6KTQAbnzowKFv7KaJpycsR5QtDYzR5XNyVUSBWlqKRezD-faZA5btUnNaVEAQuBgbzhXT-65j-0uaZoxtQEseu6A5VNDE","kty":"RSA","q":"zEQx1tW7RbiaEC_XGJdd5NJXETml2sleYdKSEw10Y7UoHGw7O1YszDkSqa8dnEwneeSuddGkv2uU8vGl2H0c-v8O3uIiWsv98uwknHX_BHvKzYMPOTbmylZlYjRo_xloHtXZueAB_cqwxLTvalHC8JA1nmfiHvYQie_A-_BWSmk","d":"F-7Ow_ZI6v0ZBhFZ2cgYbHVKaL_edtpxFBmVfnczaHM4Ty4cnKyZ_affTP5a5zEj56lnaIQz85aQYjVlHlDXYNwfACjNIkU69GFoPr8BdsfEtoZORftkJ4ShSedirusFMVFIBgRnOdfokJIw_5tM9LjmzfZHw_xGbFg47ifhfufsKYoEMqu6jA9KVSwJhLMC29CXf0tADwWfn_P-D8fkL-ZwSJg4LbWz0nLP_STxaau7pnaE_mnuJYh2rvg-nlcsRQkFwQ_6sOjNq2Igv4i8cW0vasoEcYB_I8AAcuncEk4oe-fRPird1Uua_QSSoEWpjQgQRTedU1nomyPAcsW2gQ","e":"AQAB","use":"sig","kid":"fff4231f-37bd-4594-8ccf-81bcbcc26266","qi":"tQrwtQ3yItyYSZddRak7eOmm-vBODxZ8XNjlpsx_G5EGDfoWCUIfTYBGlZKPg1rdOPAQrGDFPRJoYPQUNPc9Uyny2s9eAR1Auu94dgSHxxaBsF76JZuPG6QoN1nNaLTXUIRNb2xevLanjl93sPCg7MFU3EBMR4ELGW0R6ov12qk","dp":"lsxZ7OJUU83EWSEih7ucsY8hoaukhuH3o2Vx-URU2d5DN1qxIfdWo-rQ6m8VfDIIhgbdnx6gLfVAHRZ7aWgHHI1Pm1jySa5J_wM9fxAMla7ixQTT4ZZrs664KvOggllc0RVkDO99q6Gq-oGQEXRoc0wdV-2NREb_GlnvUBY-7RE","dq":"KDm9vtr0ODS0Uj-5kiQs32T0tHWvzbgeGBGJpqrdos0ICyDdQUAlLkqG_Fd580-j7oM0QAt68B9Vg8pGqK1qyZr06LuLnGnTpsUOKKmsAMwIEhSfKNtA89Ozv3UmwCXWtUvTxqDwg3Qo_3PKOhvD0e_0Py-h_grjEubeED8yHxE","n":"vbqIZng9Oq6W56QWw7Ths3Elv9iWFgOm5SwtNm39M8OzZrqY_7JrJuuvRCWHN3ZbYEDggS4fpCtaKtnMJzPMJyBLMgE3foJoKMNbI56GI-W5h4KMaTa41hCPo53qlKFG5IwiSgXsELHyNCvF9mjetjPSwPRw6X0WGSovVBlhuULh4koFM4j4N4xp8OYLXseSDzi5Qk52nzkN_UaEuwX0DdGhwvDMxzyGBrmuQthCBOgsK7fWEkLciBktsd2jkmVOVMjSmiuhYamPE6wuwIIKXE36IIP4iR_7AesCxSGYcBVc8oyLG6sHAB7e0cwShBhn5zv6EDTMuCOjSG7q-n6SGQ"}
...

Structure JWK generate base on private and public key with algorithm RSA.

{
  "p": "7cfFEz_cdiYT7-V2qiuyZlR2yAaXeSzpLQAjRc41cITsxj5SsvsFVeaXfXi6easXjCbTgtgTvPIyiH6KTQAbnzowKFv7KaJpycsR5QtDYzR5XNyVUSBWlqKRezD-faZA5btUnNaVEAQuBgbzhXT-65j-0uaZoxtQEseu6A5VNDE",
  "kty": "RSA",
  "q": "zEQx1tW7RbiaEC_XGJdd5NJXETml2sleYdKSEw10Y7UoHGw7O1YszDkSqa8dnEwneeSuddGkv2uU8vGl2H0c-v8O3uIiWsv98uwknHX_BHvKzYMPOTbmylZlYjRo_xloHtXZueAB_cqwxLTvalHC8JA1nmfiHvYQie_A-_BWSmk",
  "d": "F-7Ow_ZI6v0ZBhFZ2cgYbHVKaL_edtpxFBmVfnczaHM4Ty4cnKyZ_affTP5a5zEj56lnaIQz85aQYjVlHlDXYNwfACjNIkU69GFoPr8BdsfEtoZORftkJ4ShSedirusFMVFIBgRnOdfokJIw_5tM9LjmzfZHw_xGbFg47ifhfufsKYoEMqu6jA9KVSwJhLMC29CXf0tADwWfn_P-D8fkL-ZwSJg4LbWz0nLP_STxaau7pnaE_mnuJYh2rvg-nlcsRQkFwQ_6sOjNq2Igv4i8cW0vasoEcYB_I8AAcuncEk4oe-fRPird1Uua_QSSoEWpjQgQRTedU1nomyPAcsW2gQ",
  "e": "AQAB",
  "use": "sig",
  "kid": "fff4231f-37bd-4594-8ccf-81bcbcc26266",
  "qi": "tQrwtQ3yItyYSZddRak7eOmm-vBODxZ8XNjlpsx_G5EGDfoWCUIfTYBGlZKPg1rdOPAQrGDFPRJoYPQUNPc9Uyny2s9eAR1Auu94dgSHxxaBsF76JZuPG6QoN1nNaLTXUIRNb2xevLanjl93sPCg7MFU3EBMR4ELGW0R6ov12qk",
  "dp": "lsxZ7OJUU83EWSEih7ucsY8hoaukhuH3o2Vx-URU2d5DN1qxIfdWo-rQ6m8VfDIIhgbdnx6gLfVAHRZ7aWgHHI1Pm1jySa5J_wM9fxAMla7ixQTT4ZZrs664KvOggllc0RVkDO99q6Gq-oGQEXRoc0wdV-2NREb_GlnvUBY-7RE",
  "dq": "KDm9vtr0ODS0Uj-5kiQs32T0tHWvzbgeGBGJpqrdos0ICyDdQUAlLkqG_Fd580-j7oM0QAt68B9Vg8pGqK1qyZr06LuLnGnTpsUOKKmsAMwIEhSfKNtA89Ozv3UmwCXWtUvTxqDwg3Qo_3PKOhvD0e_0Py-h_grjEubeED8yHxE",
  "n": "vbqIZng9Oq6W56QWw7Ths3Elv9iWFgOm5SwtNm39M8OzZrqY_7JrJuuvRCWHN3ZbYEDggS4fpCtaKtnMJzPMJyBLMgE3foJoKMNbI56GI-W5h4KMaTa41hCPo53qlKFG5IwiSgXsELHyNCvF9mjetjPSwPRw6X0WGSovVBlhuULh4koFM4j4N4xp8OYLXseSDzi5Qk52nzkN_UaEuwX0DdGhwvDMxzyGBrmuQthCBOgsK7fWEkLciBktsd2jkmVOVMjSmiuhYamPE6wuwIIKXE36IIP4iR_7AesCxSGYcBVc8oyLG6sHAB7e0cwShBhn5zv6EDTMuCOjSG7q-n6SGQ"
}

Running Node APP

• On file node-app/index.js is defined in a const jwkRsa with value generated by app-java.

• Execute next command for encrypt text Hello************************************************

Unix

$ cd node-app
$ node index.js

Windows

$ cd node-app
$ node index.js

• This generate message encrypted how next example response:

....
-----------------------------------------------------------------
Data Encrypted: eyJlbmMiOiJBMTI4Q0JDLUhTMjU2IiwiYWxnIjoiUlNBLU9BRVAifQ.Y3zoth2zfHoVxKyFSwRE9cZLNy3HNe8ftyTYh7PBa8afe9AOXl_bEPBej-PxK1BC77ohyToHjz35k4TS7bNV1Zhvd8d-YIc_cnpMgVKlQCwgCqyEcfVcus5H2gVnDxwZ4B05EuRqz2mIKZgkMCUfcZy8yRA5T0gtlz9b7lQB30v3HF4fdJLcbODYqgfV9pR3SV3WvDnWOaxiOR8GNWDUVLAbrsBLPCsky8P3LgxLsjnH-
uILqP5FbvH93y01kupgm2pZz8mr1JQOitnnPjLScc5ydNteovufhaXJMgWHuM9w6gEzEFfRdq5DBikxuAQ9YOJ8tLuZsx2iQFh7qs7A4w.K7oRT1B4d4fHT2Jd_vJ4rg.ndpojuH49Xi6Y6MQTGSSyT5NfMjhgLt356awoViAcev_SfQrJVVUd-B_xD8DhthLYXRJLUHcMdpeG4y9wow0Gg.fy9wnnOglMJsejmpBy2BEA
....

Running Java APP - Decrypting data

For test decrypt data generate by node-app, on file app-java/src/test/java/org/example/AppTest.java is defined the variable dataEncrypted with value generated by app-java.

• Execute next command for get decrypt text Hello************************************************

Unix

$ cd node-app
$ ./gradlew test

Windows

$ cd node-app
$ gradlew.bat test

And response example is:

2020-02-20T14:21:11,837 [ INFO] [    Test worker] [o.e.App                                 ] [] dataDecrypted: Hello************************************************