Diff: main.cpp

Revision:

0:5d1b6c97e2fe

Child:

1:c8f7fe71d151

diff -r 000000000000 -r 5d1b6c97e2fe main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Nov 09 09:50:56 2018 +0000
@@ -0,0 +1,48 @@
+#include "mbed.h"
+#include "mbedtls/pk.h"
+#include "mbedtls/ctr_drbg.h"
+
+
+int main(){
+    int ret = 0;
+    mbedtls_pk_context pk;
+
+    mbedtls_pk_init( &pk );
+    const unsigned char key[]="-----BEGIN RSA PUBLIC KEY-----"
+"MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDMYfnvWtC8Id5bPKae5yXSxQTt"
+"+Zpul6AnnZWfI2TtIarvjHBFUtXRo96y7hoL4VWOPKGCsRqMFDkrbeUjRrx8iL91"
+"4/srnyf6sh9c8Zk04xEOpK1ypvBz+Ks4uZObtjnnitf0NBGdjMKxveTq+VE7BWUI"
+"yQjtQ8mbDOsiLLvh7wIDAQAB"
+"-----END RSA PUBLIC KEY-----";
+    
+
+    /*
+     * Read the RSA public key
+     */
+    if( ( ret = mbedtls_pk_parse_public_key( &pk, key,sizeof(key)) ) != 0 )
+    {
+        printf( " failed\n  ! mbedtls_pk_parse_public_key returned -0x%04x\n", -ret );
+        goto exit;
+    }
+    
+        unsigned char buf[MBEDTLS_MPI_MAX_SIZE];
+    size_t olen = 0;
+
+    /*
+     * Calculate the RSA encryption of the data.
+     */
+    printf( "\n  . Generating the encrypted value" );
+    fflush( stdout );
+    const unsigned char to_encrypt[] ="HelloWorld";
+    mbedtls_ctr_drbg_context ctr_drbg;
+    
+    if( ( ret = mbedtls_pk_encrypt( &pk, to_encrypt, sizeof(to_encrypt),
+                                    buf, &olen, sizeof(buf),
+                                    mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
+    {
+        printf( " failed\n  ! mbedtls_pk_encrypt returned -0x%04x\n", -ret );
+        goto exit;
+    }
+    exit:
+    return 0;
+}