[PATCH v8 01/15] ecdsa: fix support of secp521r1

[Simon Glass]

On 2026-06-01T13:42:58, Philippe Reynes <philippe.reynes at softathome.com> wrote:
> ecdsa: fix support of secp521r1
>
> Current implementation of ecdsa only supports key len aligned on
> 8 bits. But the curve secp521r1 uses a key of 521 bits which is not
> aligned on 8 bits. In this commit, we update the keys management
> for ecdsa to support keys that are not aligned on 8 bits.
>
> Reviewed-by: Raymond Mao <raymondmaoca at gmail.com>
> Signed-off-by: Philippe Reynes <philippe.reynes at softathome.com>
> Reviewed-by: Raymond Mao <raymondmaoca at gmail.com>
>
> lib/ecdsa/ecdsa-libcrypto.c | 75 +++++++++++++++++++++++++++++++++++++++++++--
>  lib/ecdsa/ecdsa-verify.c    | 71 +++++++++++++++++++++++++++++++++++++++---
>  lib/fdt-libcrypto.c         |  2 +-
>  tools/image-sig-host.c      |  7 +++++
>  4 files changed, 148 insertions(+), 7 deletions(-)

Reviewed-by: Simon Glass <sjg at chromium.org>