With reference to rsa.h,
I found that there are four kinds of padding.
Of them, My concern is about RSA_NO_PADDING and RSA_PKCS1_PADDING.
Basic assumption here is,
1. RSA Key size : 256
2. size of message to be encrypted : 33
1) in case of RSA_NO_PADDING,
len = RSA_public_encrypt(what_number_here_?, from, to, rsa, RSA_NO_PADDING);
in this case, Shoud I provide this function with 32 for argument #1?
and use for(while) loop to encrypt whole message?
(SO, in this case, I should myself add padding to non-32-multiple length "from"?)
2) in case of RSA_PKCS1_PADDING.
len = RSA_public_encrypt(what_number_here_?, from, to, rsa, RSA_PKCS1_PADDING);
in this case, Should I provide this function with 32-11 for argument #1?
and what is the return value of next ?
len = RSA_private_decrypt(32, to, from, rsa, RSA_PKCS1_PADDING);
Wish your help,
fO.Ombar
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