How to encrypt a large file by a public key?

[Amir (sent by Nabble.com)]

Hi all,

How can I encrypt a large file (like 100mb) with a public key so that no one other than who has the private key be able to decrypt it?

I can make RSA public and private keys but when it comes to encrypting a large file using this command:

openssl rsautl -encrypt -pubin -inkey public.pem -in myLargeFile.txt -out myLargeFile_encrypted.txt

I get this error:

RSA operation error
3020:error:0406D06E:rsa routines:RSA_padding_add_PKCS1_type_2:data too large for key size:.\crypto\rsa\rsa_pk1.c:151:

I tried to make keys with sizes from 40 to 4096 bits, no luck, same error

Thankx in advance

Amir

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How to encrypt a large file by a public key?