UnicodeDecodeError: 'utf-8' codec can't decode byte 0xdc in position 0: invalid continuation byte.Īlso convert it doesnt give me a readable string. My problem is following: When i print my cyphertext, it looks like am I supposed to using the rsa with these base64 bytes? I tried to decode it with base64 and it gives me : Now without brute force to find the private key, I should find a way to descrypt it to plaintext and Java has a mode called RSA/ECB/OAEPWithSHA-256AndMGF1Padding.What does that even mean RFC3447, Public-Key Cryptography Standards (PKCS) 1: RSA Cryptography Specifications Version 2.1, section 7.1. def decrypt (filename): with open (filename, 'rb') as file: privatekey RSA.importKey (file.read (), 'MyPassphrase') rsacipher PKCS1OAEP.new (privatekey) decryptedtext crypt (ciphertext) return decryptedtext Please note that we are using the same passphrase for reading the private key from the file privatekey.pem. I know how RSA works so i already calculate from the N, the p and q. I am given an RSA public key and a ciphertext. rsautl: Command used to sign, verify, encrypt and decrypt data using RSA algorithm-encrypt: encrypt the input data using an RSA public key-inkey: input key file-pubin: input file is an RSA public key-in: input filename to read data from-out: output filename to write to Send both randompassword. I am still new in learning RSA, so sorry for stupid question.
