From: Baruch Siach Date: Tue, 2 May 2023 04:47:28 +0000 (+0300) Subject: doc: signature: update algorithms support description X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=76759e0086cc3804412fd5f6b330196698753488;p=u-boot.git doc: signature: update algorithms support description U-Boot supports more hash and verification algorithms these days. Signed-off-by: Baruch Siach Reviewed-by: Simon Glass --- diff --git a/doc/uImage.FIT/signature.txt b/doc/uImage.FIT/signature.txt index c71280b63b..bc123f512f 100644 --- a/doc/uImage.FIT/signature.txt +++ b/doc/uImage.FIT/signature.txt @@ -42,8 +42,8 @@ device. Algorithms ---------- In principle any suitable algorithm can be used to sign and verify a hash. -At present only one class of algorithms is supported: SHA1 hashing with RSA. -This works by hashing the image to produce a 20-byte hash. +U-Boot supports a few hashing and verification algorithms. See below for +details. While it is acceptable to bring in large cryptographic libraries such as openssl on the host side (e.g. mkimage), it is not desirable for U-Boot.