I've generated many, many ps and qs, and it never matches. I've aleready tried pycryptodome, cryptography and rsa and all of them cannot decrypt using public key. I then do the simple RSA math to calculate the other terms, encrypt message 42 (no padding), decrypt that cipher, and compare the resulting plain to the original message. Python library for RSA public decryption Asked Viewed 1 I'm searching for a python library that is capable if decrypting and encrypting RSA ( RSAPKCS1PADDING to be precise) with a public key. This is why this mechanism is used in RSA encryption. I keep generating p until gcd(p - 1, e) = 1, and then repeat for q until gcd(q - 1, e) = 1. To generate primes, I'm hitting an API to get each prime. Then I send this encrypted message to python server and try to decrypt it with same private key using from Crypto.PublicKey import RSA library. I'm trying to implement RSA for some larger primes p and q, e = 3. I am using openssl/rsa.h library, that is I initialize a rsa object with a private key and encrypte a message with RSApublicencrypt(lengthofmessage, 'Secret Message', to, rsa, RSAPKCS1PADDING). I'm actually trying to solve cryptopals set 5 challenge 39.
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