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jerson / react-native-fast-rsa

RSA for react native made with golang for fast performance
https://www.npmjs.com/package/react-native-fast-rsa
MIT License
35 stars 11 forks source link

Cannot decrypt using PrivateKey generated with Node-RSA #34

Closed obie3 closed 2 years ago

obie3 commented 2 years ago

Hi, I tried decrypting an encrypted string sent to the client-side using a privateKey generated using Node-RSA on the server-side with decryptPKCS1v15(message, privateKey) and I got a Error: stringResponse: crypto/rsa: decryption error PrivateKey is a PEM string and crypto was gotten from browserify, pls what am I missing. Meanwhile the privateKey works fine with Node-RSA just that it is slow decrypting small size of data

jerson commented 2 years ago

Hi @obie3 thanks for report the issue could you share an example with a sample privateKey and a NodeRSA encrypted data, so I can create some tests around

obie3 commented 2 years ago

@jerson thanks for your reply, here is a sample privateKey and encrypted string from our server

privateKey = -----BEGIN RSA PRIVATE KEY----- MIIG5AIBAAKCAYEAj00SiHKSn1F1VwF11Fwen2DEIKJJS4fG62GQSjR/WG+QUucB HVAjTZSr5502qWhy3J0m082EbEsqHOaikJy4XewyX9JwSUm71XC3dcsObK/Nk+N8 4dloCXOAdwtTsKvXheD79W2+IHM/AFpnbrp3aUzZ9hQ1mmkXa46lzr8lSN3XqIUb PvX7DleW2S9I9uXySaKlMpbcxPlHy4F7Le/cyLqL3lhlmjyllf/clkxzVk/6yls8 CqfytjEfaKc7KKGEzm0MiErZUSfgUKIy9Urh5/ZPHi3vQ3UWwsnrOsT92pi6fRjY 4OXKhG/THhpuq837nsZNJ0Kye2xwkvP+UsLctWxtTR+83LKHQk8v9oLx3Y/DA5ol kA0ojHUZDVpFHg6ACsi6S2DAtQmEWEDK1ZUZqpTIa5+F5dDjwUBzMadNPdfBUR51 wAz/lVwWo2zR+zhp56FmyccKyS/5ZM19hDBxcZiwBkegTpvu2Vz8OXeDaxTH6xnd wiogKpcgZWUZhYn/AgMBAAECggGARZpR3iSIQwn1zITRDoyP8ym1GYS5xQ31+G4y /1fwYqwNlbbOO8ao3w3PUXhzDGXHJJDQQyAXqeH4WoFLhKIaisQm05QLJg3CRjGx am1uXCwn1iUwiyJl/fEz/J5rz+wnisd0mgjryCcx+qHui0HWrja9x2CZiJ5y2bM3 pewB2BqonRnJ2hLwFk9E3cixz/pwbIOraZ8NLD9IN/h0NCPFQVoahay57Oh4JRtZ sUcA3nOKhK87wpFAum2xq8tOWLXaaVFoNYW6dVVP/cw/x9grKbvK0F4KflwcQUYR v8Pa5hxRZTEVNSbr1y3rQDSULx8/3seFf3NahrTQmKc6ML7mtQiKA1QEDsM5uO22 Z03sfMXSI+g2yHKTxw/wpRjNB736MJ05t/UmHdas+DMGgrbmudvpnobO4IjOEu4I SChETyu9CzHdz9L4A0qDH0VU1KTQ6KfsChfwdBCCbiIqXu3c0u1j7L7OLTD4CAfz dkZFexjVTnEYZL0Q8828/1jxWmbBAoHBAMydOTOs1Gr+f0mUrWtfSEC3YXzZaM4W quHddc7eAqsrPhVK4e5OqjWC3VBk88XweZiJEyKhFNY33MKIOPEuo5mFTuJzJQs8 gj83WN6c7SLkTzfPctbo+ETou5e+E25O0YATpsYUbXeD7qBqoGl1hwXH26VEImGQ zc3JSOTqol4T4STyxvuNxbu3GwndUlaRVfIRx8NT0VIBkV9hNEt1kopJ+chY+qkY SlwehtZN0RubDCxnYBDW1gxwb02ldYQLUwKBwQCzSf2b64va54TGOwclfU0TeGje L9RmhJ30VcFbg/GlwErq564yH3MwzShjXCTZOjoL12jtuGAfMfH17msNGD+jyk2c CYBw9cpd8U6oLF+d5GZmYGP37JEYOupygqKH1cxn58FyxylVGGGMmgUwX9WtdwGJ TAhrayOPhBJAgiYFZwCbe9bmlvfKDe40CCnM+qwjbVsRe/Q0tm2xnkW9EiWauks7 JMvERklg//VelLlw4WDXanEqCx8BJTSfY6HKnSUCgcEAh2jJETygOsp/nEdLWRJu c32og4IxjKmNnvn7W9Kqu3JbnKW4zQe8NruLEQguF2FkZyDXzAQEERxY+VhDLsFp vVBuewgujLgXjhRnuLLrcDrdfhbIbhcxLhFDDFHa9BYvKO5YYR/lrcFe60SFMiV4 HMg9wKpNgnnc6QH7PptUpqPLTLNqIdGZ+PddanLQab+2vAMuS0Kt9PJarV9bx1Bg kSoRppfUEpGjrED7hNlsuDMspDopZht2/jZuQllsYt1HAoHAY4ZDPfZ3YED8t320 7d6slo5UyGIMqgwcErI377FCxxwDenq5fCFxNDnunZlc6ykjZ8df+/ZJhYeYJUkA K/i1+xomEuRDZHFMsPFvFHPtcByFq3b+h3XO5YBu/Ln/tx+7pEJGZIyiKRarr/0f vEa2uuBA/hIy6k5DIzvRVfXpXT5cW/NWzBIp4wPwovmVGrBcNh5SW1ZPraNHKT4O wHH+ZfHcKSy34HCT80Ci2Kn+dubldy8jOo+J2nzoxUHtYifxAoHBAK0Y4B64Ezee 5DKxglDjDWAyO70c7kaDIzPg/YJe0X9i7Z7LaUiM4Xe1NGFa9l+pJT4YIMzVyQZk 9r5KCq5aB9m7gwrEkSbUq0P6PXKIDZWqzoL7cwfdyVhOOX4WTIkHj3L9KkhdKoWZ b0CeL58IIKE902+YensJwsl32XzvAZu6d5FC+gJ//VzKZ3+TLMWITXBTOvPbywvH hV5V+DsmM5Nx5vvRVHQGaiCnZB2KvkzL1w4y9nFhe7QpSHw1ja2vpg== -----END RSA PRIVATE KEY-----

encryptedString = Ul1AuHajJ1Qccj1jj+8IRLs2lPfHvi0eYvbBmlOOncj6g8SusfLFgmfx8EXk9gKcA8DdsNySMNtMaUiDxGvk+8G8nFekkIY4BElzxCP1BM8htnrUQplHkokSwEG14O/JVAuJCcyyCLFy0h38VERVHajVfeQY7cUAYmqCJcunIQz98Oj/cmoKAn9GjmnDXcCYg5cCEwId9nSpeP+KWvfgfUNkaEN4knhCLJojp52dJF+taZd29OProu3KS/PLAQN22Fve/2CgPTCRKy0OemT72KGhcZNot9WVgS17qik4usYONDSJoeyDQRf5zs7lPdk7PgbtA7wJSQ/Csr2huql3yJKit48FCxP53A6S8yn6KX9lx2OUH8bRa0WpE4JdNp759+TWyfBBTxGF60y55Q4ZgaELpU5OyvHHBDy4GUjcUgbA1GZc4NEFQJsCnr+XjOPKXzigpHSNe7KgqPFr9YuvByqDgNMcS+rx9e8N2Vpp2ExeQLAonO5wufxYACAZBVHo

Algorithm used: await RSA.decryptPKCS1v15(message, privateKey)

obie3 commented 2 years ago

I guess the lib is not compatible with Node-RSA keys for asymmetric decryption

jerson commented 2 years ago

seems like is something related with the privateKey, looks like you are using 3071 for the bitLen but is something that is not supported at this moment, how are you creating you keyPair ?

obie3 commented 2 years ago

ok thank you for your response, in that case I guess the max supported bitlength is 2048