301N November 2018 / Mbed 2 deprecated encrypt

15:21 9nov

Dependencies:   mbed mbedtls

main.cpp@2:cee7ee508f77, 2018-11-09 (annotated)

Committer:
kpan
Date:
Fri Nov 09 09:58:06 2018 +0000
Revision:
2:cee7ee508f77
Parent:
1:c8f7fe71d151
Child:
3:7a6787f99da2
LED out;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
preyaa4 0:5d1b6c97e2fe 1 #include "mbed.h"
preyaa4 0:5d1b6c97e2fe 2 #include "mbedtls/pk.h"
preyaa4 0:5d1b6c97e2fe 3 #include "mbedtls/ctr_drbg.h"
kpan 1:c8f7fe71d151 4 PwmOut r(LED_RED);
kpan 1:c8f7fe71d151 5 PwmOut g(LED_GREEN);
kpan 1:c8f7fe71d151 6 PwmOut b(LED_BLUE);
kpan 1:c8f7fe71d151 7 r = g = b = 1;
kpan 1:c8f7fe71d151 8 g = 0;
preyaa4 0:5d1b6c97e2fe 9 int main(){
preyaa4 0:5d1b6c97e2fe 10 int ret = 0;
preyaa4 0:5d1b6c97e2fe 11 mbedtls_pk_context pk;
preyaa4 0:5d1b6c97e2fe 12
preyaa4 0:5d1b6c97e2fe 13 mbedtls_pk_init( &pk );
preyaa4 0:5d1b6c97e2fe 14 const unsigned char key[]="-----BEGIN RSA PUBLIC KEY-----"
preyaa4 0:5d1b6c97e2fe 15 "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDMYfnvWtC8Id5bPKae5yXSxQTt"
preyaa4 0:5d1b6c97e2fe 16 "+Zpul6AnnZWfI2TtIarvjHBFUtXRo96y7hoL4VWOPKGCsRqMFDkrbeUjRrx8iL91"
preyaa4 0:5d1b6c97e2fe 17 "4/srnyf6sh9c8Zk04xEOpK1ypvBz+Ks4uZObtjnnitf0NBGdjMKxveTq+VE7BWUI"
preyaa4 0:5d1b6c97e2fe 18 "yQjtQ8mbDOsiLLvh7wIDAQAB"
preyaa4 0:5d1b6c97e2fe 19 "-----END RSA PUBLIC KEY-----";
preyaa4 0:5d1b6c97e2fe 20
preyaa4 0:5d1b6c97e2fe 21
preyaa4 0:5d1b6c97e2fe 22 /*
preyaa4 0:5d1b6c97e2fe 23 * Read the RSA public key
preyaa4 0:5d1b6c97e2fe 24 */
preyaa4 0:5d1b6c97e2fe 25 if( ( ret = mbedtls_pk_parse_public_key( &pk, key,sizeof(key)) ) != 0 )
preyaa4 0:5d1b6c97e2fe 26 {
preyaa4 0:5d1b6c97e2fe 27 printf( " failed\n ! mbedtls_pk_parse_public_key returned -0x%04x\n", -ret );
kpan 1:c8f7fe71d151 28 g = b = 1;
kpan 1:c8f7fe71d151 29 r = 0;
preyaa4 0:5d1b6c97e2fe 30 goto exit;
preyaa4 0:5d1b6c97e2fe 31 }
preyaa4 0:5d1b6c97e2fe 32
preyaa4 0:5d1b6c97e2fe 33 unsigned char buf[MBEDTLS_MPI_MAX_SIZE];
preyaa4 0:5d1b6c97e2fe 34 size_t olen = 0;
preyaa4 0:5d1b6c97e2fe 35
preyaa4 0:5d1b6c97e2fe 36 /*
preyaa4 0:5d1b6c97e2fe 37 * Calculate the RSA encryption of the data.
preyaa4 0:5d1b6c97e2fe 38 */
preyaa4 0:5d1b6c97e2fe 39 printf( "\n . Generating the encrypted value" );
preyaa4 0:5d1b6c97e2fe 40 fflush( stdout );
preyaa4 0:5d1b6c97e2fe 41 const unsigned char to_encrypt[] ="HelloWorld";
preyaa4 0:5d1b6c97e2fe 42 mbedtls_ctr_drbg_context ctr_drbg;
preyaa4 0:5d1b6c97e2fe 43
preyaa4 0:5d1b6c97e2fe 44 if( ( ret = mbedtls_pk_encrypt( &pk, to_encrypt, sizeof(to_encrypt),
preyaa4 0:5d1b6c97e2fe 45 buf, &olen, sizeof(buf),
preyaa4 0:5d1b6c97e2fe 46 mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
preyaa4 0:5d1b6c97e2fe 47 {
preyaa4 0:5d1b6c97e2fe 48 printf( " failed\n ! mbedtls_pk_encrypt returned -0x%04x\n", -ret );
kpan 1:c8f7fe71d151 49 r = g = 1;
kpan 1:c8f7fe71d151 50 b = 0;
preyaa4 0:5d1b6c97e2fe 51 goto exit;
preyaa4 0:5d1b6c97e2fe 52 }
preyaa4 0:5d1b6c97e2fe 53 exit:
preyaa4 0:5d1b6c97e2fe 54 return 0;
kpan 2:cee7ee508f77 55 }