https://github.com/leadroyal/dual_ec_prng_poc

https://github.com/leadroyal/dual_ec_prng_poc

Last synced: 19 days ago
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• Host: GitHub
• URL: https://github.com/leadroyal/dual_ec_prng_poc
• Owner: LeadroyaL
• Created: 2020-07-29T06:53:33.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2020-09-08T08:17:28.000Z (over 4 years ago)
• Last Synced: 2024-11-12T18:07:46.671Z (3 months ago)
• Language: Java
• Size: 1.64 MB
• Stars: 2
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

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README

        
# dual ec prng backdoor poc

DOC：[docs.md](docs.md)

Usage: run the main method in [DualEcPrngBackdoorPoc.java](src/main/java/com/leadroyal/DualEcPrngBackdoorPoc.java).

depends on : bouncycastle

### demo output (with random seed)

```

e 5ccbc088080e9e9bf384de837662bcdfbece6b4c41f5b3ce88268f844c40cf25

ri f079737c7ba1e17b1b2d3881b0b7e1ac5c18bb580173458f53951a5ff0ad1330

currentRandom(ti) 2C78CAEDAD6AFC58B59CD38DECB3D45B755904E635C185BAB84862CCDC65A967

currentRandom240(ti) CAEDAD6AFC58B59CD38DECB3D45B755904E635C185BAB84862CCDC65A967

nextPoint (473f7a57818d99378c05b7d7851368f785fdaabca5e9370617c75b8de196a331,776fbc4577e20079a5751b1a64ba4ee34703c17aa90c0b317601d7d84cbd711e,1,ffffffff00000001000000000000000000000000fffffffffffffffffffffffc)

process 0/256

process 1/256

...

process 43/256

process 44/256

hit!

predict nextPoint 1:(473f7a57818d99378c05b7d7851368f785fdaabca5e9370617c75b8de196a331,889043b9881dff875a8ae4e59b45b11cb8fc3e8656f3f4ce89fe2827b3428ee1,1,ffffffff00000001000000000000000000000000fffffffffffffffffffffffc)

predict nextPoint 2:(473f7a57818d99378c05b7d7851368f785fdaabca5e9370617c75b8de196a331,776fbc4577e20079a5751b1a64ba4ee34703c17aa90c0b317601d7d84cbd711e,1,ffffffff00000001000000000000000000000000fffffffffffffffffffffffc)

predict success!

Process finished with exit code 0

```