commit 2f660d047dd60ac68ebe6c8d4da0d141403b6d71
author Hanno Becker <hanno.becker@arm.com> Tue Dec 18 17:04:59 2018 +0000
committer Hanno Becker <hanno.becker@arm.com> Tue Dec 18 17:07:30 2018 +0000
tree 326b528da6dd43f69efca5b1466d3a46460c8ef4
parent b86e684ed4b694eb77fe3922d3597211e63bb929

Forbid passing NULL input buffers to RSA encryption routines

library/rsa.c

diff --git a/library/rsa.c b/library/rsa.c
index 154738f..86bec64 100644
--- a/library/rsa.c
+++ b/library/rsa.c
@@ -1135,7 +1135,7 @@
     RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
                       mode == MBEDTLS_RSA_PUBLIC );
     RSA_VALIDATE_RET( output != NULL );
-    RSA_VALIDATE_RET( ilen == 0 || input != NULL );
+    RSA_VALIDATE_RET( input != NULL );
     RSA_VALIDATE_RET( label_len == 0 || label != NULL );
 
     if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 )
@@ -1218,7 +1218,7 @@
     RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
                       mode == MBEDTLS_RSA_PUBLIC );
     RSA_VALIDATE_RET( output != NULL );
-    RSA_VALIDATE_RET( ilen == 0 || input != NULL );
+    RSA_VALIDATE_RET( input != NULL );
 
     if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 )
         return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
@@ -1285,7 +1285,7 @@
     RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
                       mode == MBEDTLS_RSA_PUBLIC );
     RSA_VALIDATE_RET( output != NULL );
-    RSA_VALIDATE_RET( ilen == 0 || input != NULL );
+    RSA_VALIDATE_RET( input != NULL );
 
     switch( ctx->padding )
     {