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lib/rsa: Modify rsa to use DM driver

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Modify rsa_verify to use the rsa driver of DM library .The tools
will continue to use the same RSA sw library.

CONFIG_RSA is now dependent on CONFIG_DM. All configurations which
enable FIT based signatures have been modified to enable CONFIG_DM
by default.

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
CC: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Ruchika Gupta
2015-01-23 16:01:54 +05:30
committed by Simon Glass
parent 11a9662ba9
commit c937ff6dc2
14 changed files with 35 additions and 6 deletions
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14
lib/rsa/rsa-verify.c
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@@ -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;