I'm afraid sizeof(texto) returns the size of the pointer itself (4 in case of IA-32), not the data length. sizeof(struct PeticionSeudonimo) would be more effective. Also, you are using pointers in your struct (like char *mensaje), which means you are ciphering the pointer only, not the data it is pointing to.
HTH, Gyorgy >>> [EMAIL PROTECTED] 5/11/2005 10:07:28 >>> Hello: Thanks Nils for you help, but I obtain the problem. I have tried your advice: RSA_public_encrypt(sizeof(texto)+1, texto, textocifrado, claveRSA, RSA_PKCS1_PADDING); but the problem is the same. ----- Original Message ----- From: "Nils Larsch" <[EMAIL PROTECTED]> To: <openssl-users@openssl.org> Sent: Thursday, May 12, 2005 9:51 AM Subject: Re: Problem to cipher/decypher a struct with RSA > Angel Martinez Gonzalez wrote: > > Hello: > > > > I want to cypher/decypher an struct: > > > > struct PeticionSeudonimo > > { > > char *mensaje; > > int id_peticion; > > DES_cblock *clave_simetrica; > > }peticion_seudonimo; > > > > To do this, I first convert this struct to char *: > > > > char *ptrPeticionSeudonimo = (char *)&peticion_seudonimo; > > > > Then I use this function to cipher: > > > > char *CifradoClavePublica(RSA *claveRSA, char *texto) > > { > > char *textocifrado; > > > > textocifrado =malloc(RSA_size(claveRSA)); > > RSA_public_encrypt(strlen(texto)+1, texto, textocifrado, claveRSA, > > I wouldn't use strlen(), sizeof() might be more appropriate > > Nils > ______________________________________________________________________ > 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] ______________________________________________________________________ OpenSSL Project http://www.openssl.org User Support Mailing List openssl-users@openssl.org Automated List Manager [EMAIL PROTECTED]