Sorry,
I forget put in the flen parameter of the function
RSA_private_decrypt(int flen, unsigned char *from, unsigned char *to,
RSA *rsa, int padding); the value returned by the
RSA_public_encrypt(...), but I have not solved the problem with the
function
int RSA_print_fp(FILE *fp, RSA *x, int offset).
Someboy can help me?
Thanks.
On 4/13/05, Tyler Durden <[EMAIL PROTECTED]> wrote:
> Hello,
>
> I have a problem wiht the function
> "int RSA_private_decrypt(int flen, unsigned char *from, unsigned char
> *to, RSA *rsa, int padding);"
>
> When I call this function after to call the RSA_public_encrypt, I get
> -1 return value, therefore I get an error. The information error is:
>
> <LIB>: rsa routines
> <FUNC>: RSA_padding_check_SSLv23
> <REASON>: block type is not 02
>
> I don't understand because this erros occur, because I use the padding
> type when encypt that when decrypt.
>
> On the other hand, I get a segmentation fault when I use the function
> "int RSA_print_fp(FILE *fp, RSA *x, int offset);" and I don't know the reason.
>
> Teh souce code that I am using is this:
>
> #include <iostream>
> #include <openssl/rsa.h>
> #include <openssl/err.h>
>
> /*
> RSA *RSA_generate_key(int num, unsigned long e,
> void (*callback)(int,int,void *), void *cb_arg);
>
> int RSA_print_fp(FILE *fp, RSA *x, int offset);
> */
>
> void rsa_callback( int arg1, int arg2, void *cb_arg )
> {
> }
>
> int main( int argc, char** argv )
> {
> ERR_load_crypto_strings();
> RSA *rsaKeys = RSA_generate_key( 1024, 3, rsa_callback, NULL );
>
> unsigned char datain[] = "test of the rsa1";
> unsigned char *dataout = new unsigned char[RSA_size( rsaKeys )-11];
>
> if( rsaKeys == NULL )
> {
> std::cout << "The rsa key is NULL" << std::endl;
> return -1;
> }
>
> if( RSA_check_key( rsaKeys ) <= 0 )
> {
> std::cout << "The rsa key is not valid" << std::endl;
> return -1;
> }
>
> if( RSA_public_encrypt( sizeof( datain ), datain, dataout, rsaKeys,
> RSA_PKCS1_PADDING ) == -1 )
> {
> int error = ERR_get_error();
> std::cout << "<LIB>: " << ERR_lib_error_string( error )<<
> std::endl;
> std::cout << "<FUNC>: " << ERR_func_error_string( error )<<
> std::endl;
> std::cout << "<REASON>: " << ERR_reason_error_string( error
> )<< std::endl;
> return -2;
> }
>
> unsigned char *decryptData = new unsigned char[RSA_size( rsaKeys )];
>
> if( RSA_private_decrypt(RSA_size( rsaKeys )-11, dataout, decryptData,
> rsaKeys, RSA_PKCS1_PADDING ) == -1 )
> {
> int error = ERR_get_error();
> std::cout << "<LIB>: " << ERR_lib_error_string( error )<<
> std::endl;
> std::cout << "<FUNC>: " << ERR_func_error_string( error )<<
> std::endl;
> std::cout << "<REASON>: " << ERR_reason_error_string( error
> )<< std::endl;
> return -2;
> }
>
> std::cout << decryptData << std::endl;
>
> FILE *fRsaKey = fopen( "rsaKey.txt", "wb" );
> RSA_print_fp( fRsaKey, rsaKeys, 1 );
>
> ERR_free_strings();
> return 1;
> }
>
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