The length of ciphertext is not longer than the public key's length. If your public key is 1024bit, the length of ciphertext is 128 bytes.
2005/12/24, jimmy <[EMAIL PROTECTED]>: > Arsen Hayrapetyan wrote: > > Hello, > > > > I have the following question: > > > > unsigned char *plaintext = "Test message"; > > unsigned char * ciphertext=NULL; > > RSA *rsa =...; /*here I have an RSA key */ > > > > RSA_public_encrypt(strlen(plaintext), plaintext, ciphertext, rsa, > > RSA_PKCS1_OAEP_PADDIN*G* ); > > > > What will be the length of ciphertext? > > > > Same size as ur key (i.e., size in bytes) > > > When I use > > RSA_private_decrypt (flen, ...) to decrypt the message just encrypted, > > what should I pass to fuction as the first argument? (I read a mail > > i think it is length of ur cipher text, so u know how long it is :) > > > thread with a similar problem with enc/dec, and there was suggested to avoid > > determination of ciphertext using 'strlen', because it may be not > > null-terminated). > > > > Thanks in advance. > > Arsen. > > > > -jb > ______________________________________________________________________ > OpenSSL Project http://www.openssl.org > User Support Mailing List openssl-users@openssl.org > Automated List Manager [EMAIL PROTECTED] > ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]
