bcpax.blogg.se - Decrypt rsa 2048 with private key python

the code that you are using doesn't allow you to do that for security reasons.

Private_key, public_key = generate_keys()Įncoded = encrypt_private_key(message, private_key)ĭecoded = decrypt_public_key(encoded, public_key)īut it raises the next error: TypeError: This is not a private key.

Private_key = RSA.generate(modulus_lenght, Random.new().read)ĭef encrypt_private_key(a_message, private_key):Įncrypted_msg = encryptor.encrypt(a_message)Įncoded_encrypted_msg = base64.b64encode(encrypted_msg)ĭef decrypt_public_key(encoded_encrypted_msg, public_key):ĭecoded_encrypted_msg = base64.b64decode(encoded_encrypted_msg)ĭecoded_decrypted_msg = crypt(decoded_encrypted_msg) I've tried to do this: from Crypto import Random I want to do an app where the message is public but it can only be seen if you have the public key. More than secure encryption I'm looking for some kind of obfuscation. KeyPairGenerator kpg = KeyPairGenerator.Is it possible to encrypt a message with a private key in python using pycryptodome or any other library? I know that you are not supposed to encrypt with the private key and decrypt with the public key, but my purpose is to encrypt with the private one so the receiver could be sure that the message was send by the real author. Also Save the private key so it is not generated each and every time PRIVATE_KEY = new String(Base64.encode(privateKeyBytes, Base64.DEFAULT)) Save the public key so it is not generated each and every timeīyte privateKeyBytes = privateKey.getEncoded() PUB_KEY = new String(Base64.encode(publicKeyBytes, Base64.DEFAULT))

*private final static int CRYPTO_BITS = 4096 This will encrypt in 4093bits, note however that is slower.*/īyte publicKeyBytes = publicKey.getEncoded() Private static String PRIVATE_KEY = "privateKey" Private static String PUB_KEY = "pubKey" Private final static int CRYPTO_BITS = 2048

Private final static String CYPHER = "RSA/ECB/OAEPWITHSHA-256ANDMGF1PADDING" Private final static String CRYPTO_METHOD = "RSA"

To demo this i have created a empty android App and you can follow the guide and examine the code below. This will allow you to generate and public and private key that can be used to encrypt and decrypt your data. Using 2048-bit RSA with SHA-256 is a secure signing scheme for a certificate. SHA-256 is a perfectly good secure hashing algorithm and quite suitable for use on certificates while 2048-bit RSA is a good signing algorithm (do note that signing is not the same as encrypting). Since SHA-1 and RSA-1024 is outdated and has shown low security, SHA-256 and RSA 2048 is the current standard.