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rsa: add a structure for the padding

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The rsa signature use a padding algorithm. By default, we use the
padding pkcs-1.5. In order to add some new padding algorithm, we
add a padding framework to manage several padding algorithm.
The choice of the padding is done in the file .its.

Signed-off-by: Philippe Reynes <philippe.reynes@softathome.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Philippe Reynes
2018-11-14 13:51:00 +01:00
committed by Tom Rini
parent 3b5d6979fc
commit 20031567e1
7 changed files with 116 additions and 23 deletions
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4
tools/image-host.c
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@@ -157,6 +157,7 @@ static int fit_image_setup_sig(struct image_sign_info *info,
{
const char *node_name;
char *algo_name;
const char *padding_name;
node_name = fit_get_name(fit, noffset, NULL);
if (fit_image_hash_get_algo(fit, noffset, &algo_name)) {
@@ -165,6 +166,8 @@ static int fit_image_setup_sig(struct image_sign_info *info,
return -1;
}
padding_name = fdt_getprop(fit, noffset, "padding", NULL);
memset(info, '\0', sizeof(*info));
info->keydir = keydir;
info->keyname = fdt_getprop(fit, noffset, "key-name-hint", NULL);
@@ -173,6 +176,7 @@ static int fit_image_setup_sig(struct image_sign_info *info,
info->name = strdup(algo_name);
info->checksum = image_get_checksum_algo(algo_name);
info->crypto = image_get_crypto_algo(algo_name);
info->padding = image_get_padding_algo(padding_name);
info->require_keys = require_keys;
info->engine_id = engine_id;
if (!info->checksum || !info->crypto) {