Practice / Mbed 2 deprecated encrypt

15:21 9nov

Dependencies:   mbed mbedtls

main.cpp@1:c8f7fe71d151, 2018-11-09 (annotated)

Committer:
kpan
Date:
Fri Nov 09 09:56:53 2018 +0000
Revision:
1:c8f7fe71d151
Parent:
0:5d1b6c97e2fe
Child:
2:cee7ee508f77
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"
preyaa4 0:5d1b6c97e2fe 4
kpan 1:c8f7fe71d151 5 PwmOut r(LED_RED);
kpan 1:c8f7fe71d151 6 PwmOut g(LED_GREEN);
kpan 1:c8f7fe71d151 7 PwmOut b(LED_BLUE);
preyaa4 0:5d1b6c97e2fe 8
kpan 1:c8f7fe71d151 9 r = g = b = 1;
kpan 1:c8f7fe71d151 10 g = 0;
preyaa4 0:5d1b6c97e2fe 11 int main(){
preyaa4 0:5d1b6c97e2fe 12 int ret = 0;
preyaa4 0:5d1b6c97e2fe 13 mbedtls_pk_context pk;
preyaa4 0:5d1b6c97e2fe 14
preyaa4 0:5d1b6c97e2fe 15 mbedtls_pk_init( &pk );
preyaa4 0:5d1b6c97e2fe 16 const unsigned char key[]="-----BEGIN RSA PUBLIC KEY-----"
preyaa4 0:5d1b6c97e2fe 17 "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDMYfnvWtC8Id5bPKae5yXSxQTt"
preyaa4 0:5d1b6c97e2fe 18 "+Zpul6AnnZWfI2TtIarvjHBFUtXRo96y7hoL4VWOPKGCsRqMFDkrbeUjRrx8iL91"
preyaa4 0:5d1b6c97e2fe 19 "4/srnyf6sh9c8Zk04xEOpK1ypvBz+Ks4uZObtjnnitf0NBGdjMKxveTq+VE7BWUI"
preyaa4 0:5d1b6c97e2fe 20 "yQjtQ8mbDOsiLLvh7wIDAQAB"
preyaa4 0:5d1b6c97e2fe 21 "-----END RSA PUBLIC KEY-----";
preyaa4 0:5d1b6c97e2fe 22
preyaa4 0:5d1b6c97e2fe 23
preyaa4 0:5d1b6c97e2fe 24 /*
preyaa4 0:5d1b6c97e2fe 25 * Read the RSA public key
preyaa4 0:5d1b6c97e2fe 26 */
preyaa4 0:5d1b6c97e2fe 27 if( ( ret = mbedtls_pk_parse_public_key( &pk, key,sizeof(key)) ) != 0 )
preyaa4 0:5d1b6c97e2fe 28 {
preyaa4 0:5d1b6c97e2fe 29 printf( " failed\n ! mbedtls_pk_parse_public_key returned -0x%04x\n", -ret );
kpan 1:c8f7fe71d151 30 g = b = 1;
kpan 1:c8f7fe71d151 31 r = 0;
preyaa4 0:5d1b6c97e2fe 32 goto exit;
preyaa4 0:5d1b6c97e2fe 33 }
preyaa4 0:5d1b6c97e2fe 34
preyaa4 0:5d1b6c97e2fe 35 unsigned char buf[MBEDTLS_MPI_MAX_SIZE];
preyaa4 0:5d1b6c97e2fe 36 size_t olen = 0;
preyaa4 0:5d1b6c97e2fe 37
preyaa4 0:5d1b6c97e2fe 38 /*
preyaa4 0:5d1b6c97e2fe 39 * Calculate the RSA encryption of the data.
preyaa4 0:5d1b6c97e2fe 40 */
preyaa4 0:5d1b6c97e2fe 41 printf( "\n . Generating the encrypted value" );
preyaa4 0:5d1b6c97e2fe 42 fflush( stdout );
preyaa4 0:5d1b6c97e2fe 43 const unsigned char to_encrypt[] ="HelloWorld";
preyaa4 0:5d1b6c97e2fe 44 mbedtls_ctr_drbg_context ctr_drbg;
preyaa4 0:5d1b6c97e2fe 45
preyaa4 0:5d1b6c97e2fe 46 if( ( ret = mbedtls_pk_encrypt( &pk, to_encrypt, sizeof(to_encrypt),
preyaa4 0:5d1b6c97e2fe 47 buf, &olen, sizeof(buf),
preyaa4 0:5d1b6c97e2fe 48 mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
preyaa4 0:5d1b6c97e2fe 49 {
preyaa4 0:5d1b6c97e2fe 50 printf( " failed\n ! mbedtls_pk_encrypt returned -0x%04x\n", -ret );
kpan 1:c8f7fe71d151 51 r = g = 1;
kpan 1:c8f7fe71d151 52 b = 0;
preyaa4 0:5d1b6c97e2fe 53 goto exit;
preyaa4 0:5d1b6c97e2fe 54 }
preyaa4 0:5d1b6c97e2fe 55 exit:
preyaa4 0:5d1b6c97e2fe 56 return 0;
preyaa4 0:5d1b6c97e2fe 57 }