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-rw-r--r--lib/rsa/rsa-verify.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/rsa/rsa-verify.c b/lib/rsa/rsa-verify.c
index f8bc086fd77..da45daffd3b 100644
--- a/lib/rsa/rsa-verify.c
+++ b/lib/rsa/rsa-verify.c
@@ -12,6 +12,7 @@
#include <asm/errno.h>
#include <asm/types.h>
#include <asm/unaligned.h>
+#include <dm.h>
#else
#include "fdt_host.h"
#include "mkimage.h"
@@ -43,6 +44,9 @@ static int rsa_verify_key(struct key_prop *prop, const uint8_t *sig,
const uint8_t *padding;
int pad_len;
int ret;
+#if !defined(USE_HOSTCC)
+ struct udevice *mod_exp_dev;
+#endif
if (!prop || !sig || !hash || !algo)
return -EIO;
@@ -63,7 +67,17 @@ static int rsa_verify_key(struct key_prop *prop, const uint8_t *sig,
uint8_t buf[sig_len];
+#if !defined(USE_HOSTCC)
+ ret = uclass_get_device(UCLASS_MOD_EXP, 0, &mod_exp_dev);
+ if (ret) {
+ printf("RSA: Can't find Modular Exp implementation\n");
+ return -EINVAL;
+ }
+
+ ret = rsa_mod_exp(mod_exp_dev, sig, sig_len, prop, buf);
+#else
ret = rsa_mod_exp_sw(sig, sig_len, prop, buf);
+#endif
if (ret) {
debug("Error in Modular exponentation\n");
return ret;