Add and use pk_encrypt(), pk_decrypt()
diff --git a/library/pk.c b/library/pk.c
index 6f68c73..6e60574 100644
--- a/library/pk.c
+++ b/library/pk.c
@@ -153,6 +153,42 @@
}
/*
+ * Decrypt message
+ */
+int pk_decrypt( pk_context *ctx,
+ const unsigned char *input, size_t ilen,
+ unsigned char *output, size_t *olen, size_t osize,
+ int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+{
+ if( ctx == NULL || ctx->pk_info == NULL )
+ return( POLARSSL_ERR_PK_BAD_INPUT_DATA );
+
+ if( ctx->pk_info->decrypt_func == NULL )
+ return( POLARSSL_ERR_PK_TYPE_MISMATCH );
+
+ return( ctx->pk_info->decrypt_func( ctx->pk_ctx, input, ilen,
+ output, olen, osize, f_rng, p_rng ) );
+}
+
+/*
+ * Encrypt message
+ */
+int pk_encrypt( pk_context *ctx,
+ const unsigned char *input, size_t ilen,
+ unsigned char *output, size_t *olen, size_t osize,
+ int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
+{
+ if( ctx == NULL || ctx->pk_info == NULL )
+ return( POLARSSL_ERR_PK_BAD_INPUT_DATA );
+
+ if( ctx->pk_info->encrypt_func == NULL )
+ return( POLARSSL_ERR_PK_TYPE_MISMATCH );
+
+ return( ctx->pk_info->encrypt_func( ctx->pk_ctx, input, ilen,
+ output, olen, osize, f_rng, p_rng ) );
+}
+
+/*
* Get key size in bits
*/
size_t pk_get_size( const pk_context *ctx )