Describe that a signature node can be added to a binary device tree using the mkimage tool.
Provide an example device tree node.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- doc/uImage.FIT/signature.txt | 62 ++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+)
diff --git a/doc/uImage.FIT/signature.txt b/doc/uImage.FIT/signature.txt index eee06517fa..58ea8db35f 100644 --- a/doc/uImage.FIT/signature.txt +++ b/doc/uImage.FIT/signature.txt @@ -167,6 +167,68 @@ For RSA the following are mandatory: - rsa,r-squared: (2^num-bits)^2 as a big-endian multi-word integer - rsa,n0-inverse: -1 / modulus[0] mod 2^32
+These parameters can be added to a binary device tree using parameter -K of the +mkimage command:: + + tools/mkimage -f fit.its -K control.dtb -k keys -r image.fit + +Here is an example of a generated device tree node:: + + signature { + key-dev { + required = "conf"; + algo = "sha256,rsa2048"; + rsa,r-squared = <0xb76d1acf 0xa1763ca5 0xeb2f126 + 0x742edc80 0xd3f42177 0x9741d9d9 + 0x35bb476e 0xff41c718 0xd3801430 + 0xf22537cb 0xa7e79960 0xae32a043 + 0x7da1427a 0x341d6492 0x3c2762f5 + 0xaac04726 0x5b262d96 0xf984e86d + 0xb99443c7 0x17080c33 0x940f6892 + 0xd57a95d1 0x6ea7b691 0xc5038fa8 + 0x6bb48a6e 0x73f1b1ea 0x37160841 + 0xe05715ce 0xa7c45bbd 0x690d82d5 + 0x99c2454c 0x6ff117b3 0xd830683b + 0x3f81c9cf 0x1ca38a91 0x0c3392e4 + 0xd817c625 0x7b8e9a24 0x175b89ea + 0xad79f3dc 0x4d50d7b4 0x9d4e90f8 + 0xad9e2939 0xc165d6a4 0x0ada7e1b + 0xfb1bf495 0xfc3131c2 0xb8c6e604 + 0xc2761124 0xf63de4a6 0x0e9565f9 + 0xc8e53761 0x7e7a37a5 0xe99dcdae + 0x9aff7e1e 0xbd44b13d 0x6b0e6aa4 + 0x038907e4 0x8e0d6850 0xef51bc20 + 0xf73c94af 0x88bea7b1 0xcbbb1b30 + 0xd024b7f3>; + rsa,modulus = <0xc0711d6cb 0x9e86db7f 0x45986dbe + 0x023f1e8c9 0xe1a4c4d0 0x8a0dfdc9 + 0x023ba0c48 0x06815f6a 0x5caa0654 + 0x07078c4b7 0x3d154853 0x40729023 + 0x0b007c8fe 0x5a3647e5 0x23b41e20 + 0x024720591 0x66915305 0x0e0b29b0 + 0x0de2ad30d 0x8589430f 0xb1590325 + 0x0fb9f5d5e 0x9eba752a 0xd88e6de9 + 0x056b3dcc6 0x9a6b8e61 0x6784f61f + 0x000f39c21 0x5eec6b33 0xd78e4f78 + 0x0921a305f 0xaa2cc27e 0x1ca917af + 0x06e1134f4 0xd48cac77 0x4e914d07 + 0x0f707aa5a 0x0d141f41 0x84677f1d + 0x0ad47a049 0x028aedb6 0xd5536fcf + 0x03fef1e4f 0x133a03d2 0xfd7a750a + 0x0f9159732 0xd207812e 0x6a807375 + 0x06434230d 0xc8e22dad 0x9f29b3d6 + 0x07c44ac2b 0xfa2aad88 0xe2429504 + 0x041febd41 0x85d0d142 0x7b194d65 + 0x06e5d55ea 0x41116961 0xf3181dde + 0x068bf5fbc 0x3dd82047 0x00ee647e + 0x0d7a44ab3>; + rsa,exponent = <0x00 0x10001>; + rsa,n0-inverse = <0xb3928b85>; + rsa,num-bits = <0x800>; + key-name-hint = "dev"; + }; + }; +
Signed Configurations --------------------- -- 2.24.0