Created
November 13, 2018 12:47
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pycrypto RSA example
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| # https://www.dlitz.net/software/pycrypto/api/current/Crypto.Cipher.PKCS1_v1_5-module.html | |
| from Crypto import Random | |
| from Crypto.Cipher import PKCS1_v1_5 | |
| from Crypto.Hash import SHA | |
| from Crypto.PublicKey import RSA | |
| from base64 import b64decode | |
| raw_key = """-----BEGIN RSA PRIVATE KEY----- | |
| MIICXQIBAAKBgQDlOJu6TyygqxfWT7eLtGDwajtNFOb9I5XRb6khyfD1Yt3YiCgQ | |
| WMNW649887VGJiGr/L5i2osbl8C9+WJTeucF+S76xFxdU6jE0NQ+Z+zEdhUTooNR | |
| aY5nZiu5PgDB0ED/ZKBUSLKL7eibMxZtMlUDHjm4gwQco1KRMDSmXSMkDwIDAQAB | |
| AoGAfY9LpnuWK5Bs50UVep5c93SJdUi82u7yMx4iHFMc/Z2hfenfYEzu+57fI4fv | |
| xTQ//5DbzRR/XKb8ulNv6+CHyPF31xk7YOBfkGI8qjLoq06V+FyBfDSwL8KbLyeH | |
| m7KUZnLNQbk8yGLzB3iYKkRHlmUanQGaNMIJziWOkN+N9dECQQD0ONYRNZeuM8zd | |
| 8XJTSdcIX4a3gy3GGCJxOzv16XHxD03GW6UNLmfPwenKu+cdrQeaqEixrCejXdAF | |
| z/7+BSMpAkEA8EaSOeP5Xr3ZrbiKzi6TGMwHMvC7HdJxaBJbVRfApFrE0/mPwmP5 | |
| rN7QwjrMY+0+AbXcm8mRQyQ1+IGEembsdwJBAN6az8Rv7QnD/YBvi52POIlRSSIM | |
| V7SwWvSK4WSMnGb1ZBbhgdg57DXaspcwHsFV7hByQ5BvMtIduHcT14ECfcECQATe | |
| aTgjFnqE/lQ22Rk0eGaYO80cc643BXVGafNfd9fcvwBMnk0iGX0XRsOozVt5Azil | |
| psLBYuApa66NcVHJpCECQQDTjI2AQhFc1yRnCU/YgDnSpJVm1nASoRUnU8Jfm3Oz | |
| uku7JUXcVpt08DFSceCEX9unCuMcT72rAQlLpdZir876 | |
| -----END RSA PRIVATE KEY-----""" | |
| key = RSA.importKey(raw_key) | |
| dsize = SHA.digest_size | |
| sentinel = Random.new().read(15+dsize) | |
| cipher = PKCS1_v1_5.new(key) | |
| ciphertext = "areV5pLstcnb/CbmRZdLkamQXn7G9TFJk+ty29XuUHYiU0hvItIKf0xx0mhFKtXbEe/NDU0uS3+8ta7DXEAG0npXvOPGd+KRKqsyxB3ZzkM4U4n//W+hVwkEHxeoUD1Z2Xy1qLcw2eUA11MDMHaQjc06pbuartHpTyfdzIosFFU=" | |
| ciphertext = "bizM+pgzyhLP4xm+r50aV9K9I5CafhvTf8w7VY4+VU7e75HI0wsi0R0ZIyywFCv+O4D8x7kslqCcsRB1UUoGyUa7UJ7kVsM18nLqGrQRfIMdP4gO43Cr8HjY+wsGCcpbnPZr+e6SUt0p6ugApg6qzwe4Guy3LE8Pa+I35ykDxMA=" | |
| message = cipher.decrypt(b64decode(ciphertext), sentinel) | |
| print(message) |
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