From: Heiko Stuebner heiko.stuebner@theobroma-systems.com
The exponent field of struct key_prop gets allocated an uint64_t, and the contents are positioned from the back, so an exponent of "0x01 0x00 0x01" becomes 0x0 0x0 0x0 0x0 0x0 0x1 0x0 0x1"
Right now rsa_gen_key_prop() allocates a uint64_t but sets exp_len to the size returned from the parser, while on the other hand the when getting the key from the devicetree exp_len always gets set to sizeof(uint64_t).
So bring that in line with the established code.
Signed-off-by: Heiko Stuebner heiko.stuebner@theobroma-systems.com --- changes in v4: - new patch
lib/rsa/rsa-keyprop.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/rsa/rsa-keyprop.c b/lib/rsa/rsa-keyprop.c index 9464df0093..4b54db44c4 100644 --- a/lib/rsa/rsa-keyprop.c +++ b/lib/rsa/rsa-keyprop.c @@ -691,7 +691,7 @@ int rsa_gen_key_prop(const void *key, uint32_t keylen, struct key_prop **prop) memcpy((void *)(*prop)->public_exponent + sizeof(uint64_t) - rsa_key.e_sz, rsa_key.e, rsa_key.e_sz); - (*prop)->exp_len = rsa_key.e_sz; + (*prop)->exp_len = sizeof(uint64_t);
/* n0 inverse */ br_i32_decode(n, &rsa_key.n[i], rsa_key.n_sz - i);